IEC 62116

TEST REPORT

IEC 61727 / IEC 62116 Photovoltaic (PV) systems Characteristics of the utility interface Test procedure of islanding prevention measures for utility-interconnected photovoltaic inverters Report reference number .............. :

OMK-15OC1335FTSP

Date of issue .......................... ……...:

2015-11-03

Total number of pages ........... ……...:

72

Testing laboratory name ............... :

Bureau Veritas LCIE China Company Limited

Address ............................................ :

Building 4, No. 518, Xinzhuan Road, Caohejing Songjiang High-Tech Park, Shanghai, P.R. China (201612)

Applicant's name............................ :

Omnik New Energy Co., Ltd.

Address ............................................ :

Xinghu Road No.218 bioBAY Park A4-314, 215123 Suzhou, China

Test specification Standard ........................................... :

IEC 61727:2004, EN 61727:1995, DIN EN 61727:1996 IEC 62116:2008, EN 62116:2011, DIN EN 62116:2012 IEC 62116:2014 With deviations for Thailand according to the grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA):2013

Certificate ........................................ :

Certificate of compliance

Test report form number .................. :

IEC 62116

Master TRF ...................................... :

Bureau Veritas Consumer Products Services Germany GmbH

Test item description ..................... :

Grid-tied photovoltaic inverter

Trademark ........................................ : Model / Type .................................... :

Omniksol-5k-TL2

Ratings ............................................ :

Omniksol-5k-TL2

MPP DC voltage range [V] ............... :

120-500

Input DC voltage range [V] ............... :

120-590

Input DC current [A] ......................... :

28(nom), 36(max)

Output AC voltage [V] ...................... :

230V/50Hz

Output AC current [A] ....................... :

20(nom), 22(max)

Output power [VA] ............................ :

4600(nom) 5000(max)

Copyright  Bureau Veritas Consumer Products Services Germany GmbH This report must not be reproduced in part or in full without the written approval of the issuing testing laboratory.

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Report No.: OMK-15OC1335FTSP

Testing Location ............................ :

BV LCIE China Company Limited

Address ............................................ :

Building 4, No. 518, Xinzhuan Road, Caohejing Songjiang High-Tech Park, Shanghai, P.R.China (201612)

Tested by (name and signature) ....................... : Approved by (name and signature) ....................... :

Vic Zhou Test engineer Harvey Wang Senior project engineer

Manufacturer’s name ..................... :

Omnik New Energy Co., Ltd.

Factory address ............................... :

Xinghu Road No.218 bioBAY Park A4-314, 215123 Suzhou, China

Document History Date

Internal reference

Modification / Change / Status

Revision

2015-11-03

Vic Zhou

Initial report was written

0

Supplementary information:


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Test items particulars Equipment mobility ........................... :

Permanent connection

Operating condition .......................... :

Continuous

Class of equipment .......................... :

Class I

Protection against ingress of water .. :

IP65 according to EN 60529

Mass of equipment [kg] .................... :

16,5 kg

Test case verdicts Test case does not apply to the test object ............................... :

N/A

Test item does meet the requirement ................................ :

P(ass)

Test item does not meet the requirement ................................ :

F(ail)

Testing Date of receipt of test item ............... :

2015-10-27

Date(s) of performance test ............. :

2015-08-20 to 2015-09-20

General remarks: The test result presented in this report relate only to the object(s) tested. This report must not be reproduced in part or in full without the written approval of the issuing testing laboratory. ”(see Annex #)" refers to additional information appended to the report. "(see appended table)" refers to a table appended to the report. Throughout this report a comma is used as the decimal separator. The IEC61727 does not provide any limits of accuracy for the utility voltage and frequency measurement of the PV-system. If nothing different stated at the test table the values for tolerances given in EN 50438, Table 2 are used. Tolerances on trip values tabel 2 EN50438: - Voltage: +/- 1% of the nominal voltage - Frequency: +/- 0,5% of the nominal frequency - Clearance time: +/- 10%

This Test Report consists of the following documents: 1. Test Results 2. Annex No. 1 – EMC Test Report 3. Annex No. 2 – Pictures of the unit 4. Annex No. 3 – Test equipment list


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Copy of marking plate:


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General product information: The Solar Inverter converts DC voltage into AC voltage. The unit is providing EMC filtering at the output towards mains and at the input toward the solar array. The Solar converter is transformer-less type. The output is switched off redundant by the high power switching bridge and two relays. This assures that the opening of the output circuit will also operate in case of one error. The internal control is redundant built. It consists out of two Microcontrollers CPU (U1, U5), The master CPU (U1) control the relays, measures grid voltage, frequency, PV current and voltage, DC bus voltage, AC current with injected DC and insulation resistance. In addition it tests the current sensors and the RMCU circuit before each start up The redundant CPU (U5) also measures the voltage and current of grid side and PV side. It also shut down the relays. Both microcontrollers communicate with each other. The voltage and frequency measurement is performed with resistors in serial which are connected directly to line and neutral. Both controllers get these signals and analyze the data. The units provide two relays in series in each path (L and N). The relays are tested before each start up. In addition the power bridge can be stopped by both CPU. Differences of the models: Block diagrams: Omniksol-5k-TL2


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The product was tested on Hardware version: Model

Omniksol-5k-TL2

INVBST

999004-0-03-040

CTL

999004-0-01-031

HMI

999004-0-04-040

SPS

999004-0-02-012

COM

999004-0-05-020

Software Version: Model

Omniksol-5k-TL2

Main CPU

V1.0Build 98

Slave CPU

V1.0Build 31

HMI CPU

V1.0Build 13

The maximum ambient temperature is specified as 60°C.


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Interface protection settings with deviations according to the grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA):2013 (Thailand MEA) Parameter

Max. clearance time*

Trip setting

Over voltage (level 2)

0,05s

230V +35% (311V)

Over voltage (level 1)

2,0s

230V +4,3% (240V)

Under voltage (level 1)

2,0s

230V -13% (200V)

Under voltage (level 2)

0,1s

230V -50% (115V)

Over frequency

0,1s

50Hz +2% (51,0Hz)

Under frequency

0,1s

50Hz -2% (49,0Hz)

Reconnection time

at least 120s

Permanent DC-injection

0,5% of rated inverter output current

Loss of main IEC 62116

Inverter shall detect and disconnect within 0,3s

* Trip time refers to the time between the abnormal condition occurring and the inverter ceasing to energize the utility line. The PV system control circuits shall actually remain connected to the utility to allow sensing of utility electrical conditions for use by the “reconnect” feature.


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IEC61727:2004 Clause 4

4.1

4.2

4.3

4.4

4.5

Requirement – Test

Result – Remark SECTION 4: Utility compatibility General Noticed The quality of power provided by the PV system for the on-site AC loads and for power delivered to the utility is governed by practices and standards on voltage, flicker, frequency, harmonics and power factor. Deviation from these standards represents out-of-bounds conditions and may require the PV system to sense the deviation and properly disconnect from the utility system. All power quality parameters (voltage, flicker, frequency, harmonics, and power factor) must be measured at the utility interface/ point of common coupling unless otherwise specified. Voltage, current and frequency Derived from tests The PV system AC voltage, current and frequency shall be compatible with the utility system. Normal voltage operating range Derived from tests Utility-interconnected PV systems do not normally regulate voltage; they inject current into the utility. Therefore, the voltage operating range for PV inverters is selected as a protection function that responds to abnormal utility conditions, not as a voltage regulation function. Flicker See table 4.3 The operation of the PV system should not cause voltage flicker in excess of limits stated in the relevant sections of IEC 61000-3-3 for systems less than 16 A or IEC 61000-3-5 for systems with current of 16 A and above. DC injection The following deviations The PV system shall not inject DC current greater than were used: 1 % of the rated inverter output current, into the utility AC interface under any operating condition. a) Metropolitan Electricity Authority (MEA)

Normal frequency operating range The PV system shall operate in synchronism with the utility system, and within the frequency trip limits defined in 5.2.2.

See table 4.4 The following deviations were used: a) Metropolitan Electricity Authority (MEA) See table 4.5 and 5.2.2


Verdict P

P

P

P

P

P

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IEC61727:2004 Clause 4.6

4.7

Requirement – Test

Result – Remark SECTION 4: Utility compatibility Harmonics and waveform distortion The following deviations Low levels of current and voltage harmonics are were used: desirable; the higher harmonic levels increase the potential for adverse effects on connected equipment. a) Metropolitan Electricity Acceptable levels of harmonic voltage and current Authority (MEA) depend upon distribution system characteristics, type of service, connected loads/apparatus, and established See tables 4.6 (1) and utility practice. 4.6 (2) The PV system output should have low currentdistortion levels to ensure that no adverse effects are caused to other equipment connected to the utility system. Total harmonic current distortion shall be less than 5 % at rated inverter output. Each individual harmonic shall be limited to the percentages listed in Table 1. Even harmonics in these ranges shall be less than 25 % of the lower odd harmonic limits listed. (see Clause 4.6 Table 1 – Current distortion limits) Power factor See table 4.7 The PV system shall have a lagging power factor greater than 0,9 when the output is greater than 50 % of the rated inverter output power.


Verdict P

P

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IEC61727:2004 Clause 5

5.1

5.2

5.2.1

Requirement – Test Result – Remark SECTION 5: Personnel safety and equipment protection General Noticed This Clause provides information and considerations for the safe and proper operation of the utility-connected PV systems. Loss of utility voltage The following deviations To prevent islanding, a utility connected PV system shall were used: cease to energize the utility system from a de-energized distribution line irrespective of connected loads or other a) Metropolitan Electricity generators within specified time limits. Authority (MEA) A utility distribution line can become de-energized for several reasons. For example, a substation breaker opening due to fault conditions or the distribution line switched out during maintenance. If inverters (single or multiple) have DC SELV input and have accumulated power below 1 kW then no mechanical disconnect (relay) is required. Over/under voltage and frequency The following deviations Abnormal conditions can arise on the utility system that were used: requires a response from the connected photovoltaic system. This response is to ensure the safety of utility a) Metropolitan Electricity maintenance personnel and the general public, as well Authority (MEA) as to avoid damage to connected equipment, including the photovoltaic system. The abnormal utility conditions See table 5.2.1 and 5.2.2 of concern are voltage and frequency excursions above or below the values stated in this Clause, and the complete disconnection of the utility, presenting the potential for a distributed resource island. Over/under voltage The following deviations When the interface voltage deviates outside the were used: conditions specified in Table 2, the photovoltaic system shall cease to energize the utility distribution system. a) Metropolitan Electricity This applies to any phase of a multiphase system. Authority (MEA) All discussions regarding system voltage refer to the local nominal voltage. The system shall sense abnormal See table 5.2.1 voltage and respond. The following conditions should be met, with voltages in RMS and measured at the point of utility connection. (see clause 5.2.1 Table 2 – Response to abnormal voltages) The purpose of the allowed time delay is to ride through short-term disturbances to avoid excessive nuisance tripping. The unit does not have to cease to energize if the voltage returns to the normal utility continuous operation condition within the specified trip time.


Verdict P

P

P

P

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IEC61727:2004 Clause 5.2.2

5.3

5.4

5.5

5.6

5.7

Requirement – Test Result – Remark SECTION 5: Personnel safety and equipment protection Over/under frequency The following deviations When the utility frequency deviates outside the specified were used: conditions the photovoltaic system shall cease to energize the utility line. The unit does not have to cease a) Metropolitan Electricity to energize if the frequency returns to the normal utility Authority (MEA) continuous operation condition within the specified trip time. See table 5.2.2 When the utility frequency is outside the range of ±1 Hz, the system shall cease to energize the utility line within 0,2 s. The purpose of the allowed range and time delay is to allow continued operation for short-term disturbances and to avoid excessive nuisance tripping in weak-utility system conditions. Islanding protection The following deviations The PV system must cease to energize the utility line were used: within 2 s of loss of utility. a) Metropolitan Electricity Authority (MEA)

Response to utility recovery Following an out-of-range utility condition that has caused the photovoltaic system to cease energizing, the photovoltaic system shall not energize the utility line for 20 s to 5 min after the utility service voltage and frequency have recovered to within the specified ranges. Earthing The utility interface equipment shall be earthed/grounded in accordance with IEC 60364-7-712. Short circuit protection The photovoltaic system shall have short-circuit protection in accordance with IEC 60364-7-712. Isolation and switching A method of isolation and switching shall be provided in accordance with IEC 60364-7-712.

Verdict P

P

See table 5.2 (1) and 5.2 (2)

P

Stated in the manual.

P


P


P


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Test overview:

IEC 61727:2004 Clause

Test

Result

1

Response to protection operation - fault condition tests (according VDE01261-1:2006)

P

4

Type test:

4.3

Voltage Fluctuations and Flicker

P

4.4

Monitoring of DC-Injection

P

4.5

Normal frequency operating range (see 5.2.2 below)

P

4.6

Harmonics and waveform distortion

P

4.7

Power factor

P

5.2.1

Voltage monitoring

P

5.2.2

Frequency monitoring

P

IEC 62116:2008 Clause

Test

Result

Type test: 6.1 6.1 6.1

Islanding protection according table 6 - Load imbalance (real, reactive load) for test condition A (EUT ouput = 100%) Load imbalance (reactive load) for test condition B (EUT output = 50 % – 66 %) Load imbalance (reactive load) for test condition C (EUT output = 25 % – 33 %)


P P P

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Test Results 1. Response to protection operation - fault condition tests ambient temperature [°C] : model/type of power supply : manufacture r of power supply : rated markings of power supply :

P

24



AC: type 61512 DC: type 62150H-1000S



AC: Chroma DC: Chroma



AC: 18kW three phase DC: 15kW, 15A, 1000V



Model: Omniksol-5k-TL2 test condition

component No.

fault

Relay RYA1

Relay RYA2

Relay RYA4

Relay RYA5

Output

DC input

Output

TX3

TX3

short circuit before start up short circuit before start up short circuit before start up short circuit before start up Short circuit

fuse No, (AC)

fault condition AC

DC

AC

DC

test time

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

Reversed

Over load

Short circuit pin(21) to pin (19) Short circuit pin(18) to pin (19)

result The inverter can’t start up, error message: Fault 06. No damage, no hazard. The inverter can’t start up, error message: Fault 07. No damage, no hazard. The inverter can’t start up, error message: Fault 06. No damage, no hazard. The inverter can’t start up, error message: Fault 07. No damage, no hazard. PCE shutdown immediately, error message: Fault 8. The inverter did not feed in power to the grid. No damage, no hazard. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately, error message: Fault 18. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. Warning LED on red. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. Warning LED on red. The inverter did not feed in power to the grid. No damage, no hazard.


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component No. UA1

UA7

CA11

TX3

TX3

QB2

QB2

QA8

QA5

UB1

UB4

UB4

UB2

test condition fault Short circuit pin(5) to pin (6) Short circuit pin(5) to pin (6) Short circuit

Short circuit pin(1) to pin (2) Short circuit pin(4) to pin (5) Short circuit pin(1) to pin (2) Short circuit pin(1) to pin (3) Short circuit pin(2) to pin (3) Short circuit pin(2) to pin (3) Short circuit pin(6) to pin (8) Short circuit pin(1) to pin (2) Short circuit pin(3) to pin (4) Short circuit pin(1) to pin (2)

AC

DC

test time

fuse No, (AC)


fault condition AC

DC

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

15,2

10,3

230

360

10Min

FA1

<0,1

<0,1

230

360

10Min

FA1

<0,1

<0,1

result PCE shutdown immediately. QA6 damaged. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. QA20 damaged. The inverter did not feed in power to the grid, no hazard. PCE shutdown immediately. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. D39,Tx3 damaged. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. D36,Tx3 damaged. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. The inverter did not feed in power to the grid. No damage, no hazard. Unit operated normally, no damage, no hazard

PCE shutdown immediately. Warning LED on red. The inverter did not feed in power to the grid. No damage, no hazard. PCE shutdown immediately. QA4,QA8,QA5 damaged. The inverter did not feed in power to the grid, no hazard.


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component No. UB2

test condition fault Short circuit pin(3) to pin (4)

AC 230

DC 360

test time

10Min

fuse No, (AC) FA1


fault condition AC <0,1

DC <0,1

result PCE shutdown immediately. QA4,QA8,damaged. The inverter did not feed in power to the grid, no hazard.

Note: The errors in the control circuit simulate that the safety is even under one error ensured.


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4.3 Voltage fluctuation and flicker

P

Inverter >16A Limit

dc% = 3,3

Test value

Pst=1,0

Plt=0,65*

See below Omniksol-5k-TL2

Note: Mains Impedance according EN61000-3-11:

Rmax = 0,24Ω; jXmax= 0,15Ω @50Hz (|Zmax| = 0,283Ω)

Calculation of the maximum permissible grid impedance at the point of common coupling based on dc: Zmax = Zref * 3,3% / dc(Pn) The tests should be based on the limits of the EN61000-3-11 for more than 16A. * Technical requiremnts for Connecting Small Scale PV (ssPV) Systems to Low Voltage Distribution Networks: Limit Pst=1,0 and Plt=0,8


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4.4 Monitoring of Permanent DC-Injection The grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA)

P

Omniksol-5k-TL2 MEA and PEA Limit: Output power: mean test value phase L1 [mA]: mean test value phase L2 [mA]: mean test value phase L3 [mA]:

33% -19,6 N/A N/A

0,5% of Inom (100mA) 66% -19,9 N/A N/A

100% 49,8 N/A N/A

Diagram of permanent DC injection: Omniksol-5k-TL2


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4.6 Harmonic Current Limit Test The grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA)

P

100% Output Power

Harmonics 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th 21th 22th 23th 24th 25th 26th 27th 28th 29th 30th 31th 32th 33th 34th 35th 36th 37th 38th 39th 40th

Watts [W] Vrms [V] Arms [A] PF [1] Frequency [Hz] THD50 [%] Current Magnitude [A] 19,763 0,016 0,020 0,002 0,212 0,004 0,024 0,012 0,012 0,009 0,027 0,012 0,011 0,005 0,016 0,003 0,015 0,008 0,009 0,004 0,016 0,012 0,013 0,012 0,011 0,007 0,007 0,007 0,011 0,007 0,002 0,008 0,016 0,007 0,016 0,008 0,018 0,010 0,011 0,009

4545,8 230,0 19,77 0,9997 50 1,15 % of Fundamental

Phase

-0,082 0,101 0,012 1,070 0,020 0,123 0,063 0,059 0,046 0,135 0,062 0,058 0,027 0,082 0,016 0,076 0,041 0,045 0,020 0,079 0,063 0,064 0,060 0,055 0,037 0,036 0,037 0,058 0,037 0,012 0,040 0,079 0,036 0,082 0,039 0,092 0,049 0,053 0,048

Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase

Harmonic Current Limits [%] 1% 4% 1% 4% 1% 4% 1% 4% 1% 2% 0,5% 2% 0,5% 2% 0,5% 1,5% 0,375% 1,5% 0,375% 1,5% 0,375% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,3% 0,075% 0,3% 0,075% 0,3% 0,075%


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P

66% Output Power

Harmonics 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th 21th 22th 23th 24th 25th 26th 27th 28th 29th 30th 31th 32th 33th 34th 35th 36th 37th 38th 39th 40th

Watts [W] Vrms [V] Arms [A] PF [1] Frequency [Hz] THD50 [%] Current Magnitude [A] 13,088 0,012 0,061 0,008 0,095 0,006 0,030 0,007 0,009 0,005 0,019 0,009 0,013 0,004 0,014 0,008 0,019 0,008 0,017 0,006 0,021 0,012 0,016 0,006 0,013 0,007 0,005 0,004 0,011 0,005 0,007 0,005 0,010 0,007 0,012 0,004 0,009 0,007 0,007 0,005

3000,0 229,1 13,11 0,9996 50 1,02 % of Fundamental

Phase

-0,090 0,467 0,058 0,727 0,048 0,225 0,057 0,069 0,041 0,142 0,065 0,099 0,028 0,110 0,060 0,144 0,063 0,128 0,048 0,158 0,094 0,125 0,045 0,100 0,050 0,038 0,030 0,085 0,040 0,057 0,038 0,077 0,056 0,089 0,030 0,068 0,054 0,057 0,041

Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase Single Phase

Harmonic Current Limits [%] 1% 4% 1% 4% 1% 4% 1% 4% 1% 2% 0,5% 2% 0,5% 2% 0,5% 1,5% 0,375% 1,5% 0,375% 1,5% 0,375% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,3% 0,075% 0,3% 0,075% 0,3% 0,075%


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P

33% Output Power

Harmonics

Watts [W] Vrms [V] Arms [A] PF [1] Frequency [Hz] THD50 [%] Current Magnitude [A]

1528,8 228,1 6,71 0,9991 50 2,45 % of Fundamental

Phase

Harmonic Current Limits [%] -1% 4% 1% 4% 1% 4% 1% 4% 1% 2% 0,5% 2% 0,5% 2% 0,5% 1,5% 0,375% 1,5% 0,375% 1,5% 0,375% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,6% 0,15% 0,3% 0,075% 0,3% 0,075% 0,3% 0,075%

6,705 1st -Single Phase 0,011 0,159 Single Phase 2nd 0,102 1,515 Single Phase 3rd 0,011 0,163 Single Phase 4th 0,052 0,776 Single Phase 5th 0,013 0,197 Single Phase 6th 0,027 0,409 Single Phase 7th 0,006 0,084 Single Phase 8th 0,031 0,458 Single Phase 9th 0,013 0,194 Single Phase 10th 0,056 0,828 Single Phase 11th 0,004 0,063 Single Phase 12th 0,023 0,338 Single Phase 13th 0,006 0,089 Single Phase 14th 0,031 0,455 Single Phase 15th 0,006 0,087 16th Single Phase 0,026 0,381 Single Phase 17th 0,007 0,103 Single Phase 18th 0,031 0,465 Single Phase 19th 0,012 0,174 20th Single Phase 0,013 0,190 Single Phase 21th 0,003 0,039 Single Phase 22th 0,016 0,231 Single Phase 23th 0,010 0,142 Single Phase 24th 0,020 0,302 Single Phase 25th 0,007 0,108 Single Phase 26th 0,010 0,152 Single Phase 27th 0,006 0,085 Single Phase 28th 0,009 0,130 Single Phase 29th 0,003 0,042 Single Phase 30th 0,010 0,154 Single Phase 31th 0,003 0,044 Single Phase 32th 0,013 0,197 Single Phase 33th 0,006 0,089 Single Phase 34th 0,009 0,136 35th Single Phase 0,003 0,041 Single Phase 36th 0,009 0,141 Single Phase 37th 0,002 0,036 Single Phase 38th 0,006 0,092 Single Phase 39th 0,002 0,032 Single Phase 40th Note: The harmonics are tested and evaluated according the IEEE1547.1-2005 clause 5.11.1 according the gridconnected inverter regulations of the Metropolitan Electricity Authority (MEA) Copyright  Bureau Veritas Consumer Products Services Germany GmbH This report must not be reproduced in part or in full without the written approval of the issuing testing laboratory.

Page 1 of 72


4.7 Power factor The grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA)

P

Omniksol-5k-TL2 Output power [kW]

~10% 0,45kW

~25% 1,15kW

~50% 2,31kW

~75% 3,43kW

~100% 4,56kW

0,9829c

0,9979c

0,9993i

0,9995i

0,9996i

Test AC voltage [V] 230V

Note: The PV system shall have a lagging power factor greater than 0,95 when the output is greater than 50% of the rated inverter output power. The letter “i” is short for “inductive” and indicates inductive power factor. In case of capacitive power factor the letter “c” is used instead.


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5.2.1 Voltage monitoring The grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA)

P

First Level Under Voltage Voltage [V]

Voltage [V]

199V

241V

Set value

Measured trip value

All

L1

L2

L3

All

L1

L2

L3

N/A

199,1

N/A

N/A

N/A

240,9

N/A

N/A

N/A

199,2

N/A

N/A

N/A

240,8

N/A

N/A

N/A

199,1

N/A

N/A

N/A

240,8

N/A

N/A

N/A

199,1

N/A

N/A

N/A

240,8

N/A

N/A

N/A

199,2

N/A

N/A

N/A

240,9

N/A

N/A

Parameter Limit

204V to 194V

Trip time

Reconnection time

at least 120s

Over Voltage

Time [ms]

Time [ms]

<= 2,0s

<= 2,0s

All

L1

L2

L3

All

L1

L2

L3

N/A

1,832

N/A

N/A

N/A

1,828

N/A

N/A

N/A

1,840

N/A

N/A

N/A

1,824

N/A

N/A

N/A

1,824

N/A

N/A

N/A

1,820

N/A

N/A

N/A

1,840

N/A

N/A

N/A

1,820

N/A

N/A

N/A

1,832

N/A

N/A

N/A

1,820

N/A

N/A

137,0s

236V to 246V

at least 120s

137,2s


Page 1 of 72


Second Level Under Voltage

Over Voltage

Parameter

Voltage [V]

Voltage [V]

Set value

114V

272V*

Measured trip value

All

L1

L2

L3

All

L1

L2

L3

N/A

114,5

N/A

N/A

N/A

272,4

N/A

N/A

N/A

114,6

N/A

N/A

N/A

272,4

N/A

N/A

N/A

114,5

N/A

N/A

N/A

272,4

N/A

N/A

N/A

114,5

N/A

N/A

N/A

272,4

N/A

N/A

N/A

114,6

N/A

N/A

N/A

272,4

N/A

N/A

Parameter

Time [ms]

Time [ms]

Limit

<= 100ms

<= 50ms

Trip time

119V to 109V**

All

L1

L2

L3

All

L1

L2

L3

N/A

73,0

N/A

N/A

N/A

21,0

N/A

N/A

N/A

81,0

N/A

N/A

N/A

21,0

N/A

N/A

N/A

73,0

N/A

N/A

N/A

21,0

N/A

N/A

N/A

81,0

N/A

N/A

N/A

19,0

N/A

N/A

N/A

65,0

N/A

N/A

N/A

19,0

N/A

N/A

267V to 277V**

Reconnection at least at least 137,0s 137,0s time 120s 120s Note: *The max trip voltage is 272V for Omniksol-5k-TL2 set by manufactory **The second trip level procedure(for under voltage) is a double jump, first set the voltage to 204V, and then within the disconnection time of the first level a jump to 119V and keep 500ms, second a jump to 109V to measure the disconnection time of the second voltage trips from 119V to 109V. **The second trip level procedure(for over voltage) is a double jump, first set the voltage to 236V, and then within the disconnection time of the first level a jump to 267V and keep 500ms, second a jump to 277V to measure the disconnection time of the second voltage trips from 267V to 277V. The voltage monitoring was tested according the test procedure 4.3.4 Operating voltage range test of the grid-connected inverter regulation Metropolitan Electricity Authority 2013. The voltage settings of the EUT are set for the tests as stated to 199V, 199V for undervoltage and 241V, 272V for overvoltage. The tests are performed according the IEEE 1547.1-2005, annex A. The reconnection time follows the test procedure of IEEE 1547.1, clause 5.10. If inverter cannot be adjusted for overvoltage trip setting and/or undervoltage trip setting up to 311 V and/or 114 V respectively, it shall be adjusted the overvoltage trip setting and/or undervoltage trip setting to the maximum voltage and/or minimum voltage that inverter can be set. The voltage which inverter stops feeding power to electrical system in each test must be in the range of the Voltage Trip Setting ± 1 V and the time it takes to cut off the power must be as specified in clause 3.2.1.


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Under Voltage First Level single phase

Over Voltage First Level single phase


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Reconnection Under Voltage first Level

Reconnection Over Voltage first Level


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Under Voltage Second Level single phase

Over Voltage Second Level single phase


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Reconnection Under Voltage second Level

Reconnection Over Voltage second Level


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5.2.2 Frequency monitoring

P

IEC 61727 The grid-connected inverter regulations of the Metropolitan Electricity Authority (MEA) Under Frequency Parameter Output Voltage Set value

Measured trip value

Limit

Trip time

49,40 Hz to 48,40 Hz

Over Frequency

Frequency [Hz]

Frequency [Hz]

UN

UN

48,90Hz

51,10Hz

48,90

51,11

48,90

51,11

48,90

51,11

48,90

51,11

48,90

51,11

Time [ms]

Time [ms]

<= 100ms

<= 100ms

75,0

77,0

89,0 73,0

50,60 Hz to 51,60 Hz

79,0 79,0

93,0

79,0

91,0

85,0

Reconnection at least at least 137,0s 137,0s time 120s 120s Note: The frequency which inverter stops feeding power to electrical system in each test must be in the range of the frequency trip setting +/- 0,1Hz and the time it takes to cut off the power must be within 0.1 second. It was measured at a continuous change of frequency of 1Hz/s at lower, nominal and upper UN and arbitary output power. The trip value was determined manually by reducing the frequency in 10mHz steps. When the trip value is known (e.g. 49Hz), the ac-source is programmed to run from e.g. 49,50Hz to 48,50Hz with 1Hz/s. The disconnection time is calculated by the measured time minus the 500ms from 49,50Hz to 49,00Hz. The frequency monitoring was tested according the test procedure 4.3.5 Operating frequency range test of the grid-connected inverter regulation Metropolitan Electricity Authority 2013. The frequency settings are set for the test as stated to 48,90Hz and 51,10Hz. The tests are perfomred according the IEEE 1547.1-2005, annex A). The reconnection time follows the test procedure of IEEE 1547.1, clause 5.10.


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Under Frequency:

Over Frequency:


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Reconnection Under Frequency:

Reconnection Over Frequency:


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6.1 Islanding protection Test circuit and parameters Parameter EUT DC Input DC voltage DC Current DC Power EUT AC ouput AC voltage AC current Real power Reactive power Test Load Resistive load current Inductive load current Capacitive load current AC (utility) power source Utility real power Utility reactive power Utility current

Symbol

Units

VDC IDC PDC

V A W

VEUT IEUT PEUT QEUT

V A W VAr

IR IL IC

A A A

PAC QAC IAC

W VAr A

Block diagram test circuit IEC 62116:2008


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6.1 Islanding protection according table 6 - Load imbalance (real, reactive load) for test condition A (EUT ouput = 100%)

Test conditions

Frequency: 50+/-0,1Hz UN=230+/-3Vac Distortion factor of chokes < 2% Quality = 1

Disconnection limit

0,3s deviations for MEA

1)

2)

3)

P

No

PEUT [% of EUT rating]

Reactive load [% of QL in 6.1.d) 1]

PAC [% of nominal]

QAC [% of nominal]

PEUT [W per phase]

VDC [V]

Qf [1]

Run on Time [ms]

1

100

100

0

0

4598

420

1,00

110,4

BL

2

100

100

-10

-10

4134

420

0,90

50,4

IB

3

100

100

-10

-5

4131

420

0,95

76,8

IB

4

100

100

-10

0

4137

420

1,00

108,8

IB

5

100

100

-10

+5

4140

420

1,05

80,0

IB

6

100

100

-10

+10

4132

420

1,09

73,6

IB

7

100

100

-5

-10

4371

420

0,90

62,6

IB

8

100

100

-5

-5

4370

420

0,95

89,6

IB

9

100

100

-5

0

4365

420

1,00

103,6

IB

10

100

100

-5

+5

4375

420

1,05

83,6

IB

11

100

100

-5

+10

4368

420

1,09

84,6

IB

12

100

100

0

-10

4596

420

0,90

57,6

IB

13

100

100

0

-5

4592

420

0,95

88,6

IB

14

100

100

0

+5

4595

420

1,05

69,6

IB

15

100

100

0

+10

4593

420

1,10

66,6

IB

16

100

100

+5

-10

4825

420

0,90

70,6

IB

17

100

100

+5

-5

4821

420

0,95

88,6

IB

18

100

100

+5

0

4819

420

1,00

71,6

IB

19

100

100

+5

+5

4815

420

1,05

78,6

IB

20

100

100

+5

+10

4830

420

1,10

82,6

IB

21

100

100

+10

-10

5050

420

0,91

62,6

IB

22

100

100

+10

-5

5020

420

0,94

80,6

IB

23

100

100

+10

0

5034

420

1,00

100,6

IB

24

100

100

+10

+5

5045

420

1,06

96,6

IB

25

100

100

+10

+10

5043

420

1,09

67,6

IB


Remarks 5)

Page 1 of 72

Parameter at 0% per phase

L= 36,62 mH


R= 11,50 Ω

C= 276,93 µF

Note: RLC is adjusted to min. +/-1% of the inverter rated output power 1) PEUT: EUT output power 2) PAC: Real power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 3) QAC: Reactive power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 4) Fundamental of IAC when RLC is adjusted 5) BL: Balance condition, IB: Imbalance condition. Condition A: 6) EUT output power PEUT = Maximum 6) EUT input voltage = >90% of rated input voltage range 6)

Maximum EUT output power condition should be achieved using the maximum allowable input power. Actual output power may exceed nominal rated output. 7) Based on EUT rated input operating range. For example, If range is between X volts and Y volts, 90 % of range =X + 0,75 × (Y – X). Y shall not exceed 0,8 × EUT maximum system voltage (i.e., maximum allowable array open circuit voltage). In any case, the EUT should not be operated outside of its allowable input voltage range.


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Disconnection at No. 1 of PAC 0% and QAC 0% reactive load

Note: Green waveform: the current IAC pass through S1 of Figure 0. The fundamental(50Hz) component of IAC at PAC 0% and QAC 0% is 46,1mA. When the switch S1 was opened, the current IAC feed into the gird(AC power source) will turn to absolute zero. CH1: EUT current CH2: Gird voltage CH4: IAC current into the grid


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6.1 Islanding protection according Table 7 – Load imbalance (reactive load) for test condition B (EUT output = 50 % – 66 %)

Test conditions

Frequency: 50+/-0,1Hz UN=230+/-3Vac Distortion factor of chokes < 2% Quality =1

Disconnection limit


1)

2)

3)

P

No



PAC [% of nominal]

QAC [% of nominal]

PEUT [W per phase]

VDC [V]

Qf [1]

Run on Time [ms]

1

66

66

0

-5

3055

285

0,95

70,6

IB

2

66

66

0

-4

3065

285

0,96

81,6

IB

3

66

66

0

-3

3053

285

0,97

90,4

IB

4

66

66

0

-2

3067

285

0,98

90,4

IB

5

66

66

0

-1

3072

285

0,99

133,4

IB

6

66

66

0

0

3068

285

1,00

115,4

BL

7

66

66

0

1

3049

285

1,01

89,4

IB

8

66

66

0

2

3075

285

1,02

106,4

IB

9

66

66

0

3

3069

285

1,03

127,4

IB

10

66

66

0

4

3073

285

1,04

98,4

IB

11

66

66

0

5

3070

285

1,05

76,4

IB


L= 55,49 mH

R= 17,42 Ω

Remarks 5)

C= 182,77 µF

Note: RLC is adjusted to min. +/-1% of the inverter rated output power 1) PEUT: EUT output power 2) PAC: Real power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 3) QAC: Reactive power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 4) Fundamental of IAC when RLC is adjusted 5) BL: Balance condition, IB: Imbalance condition. Condition B: EUT output power PEUT = 50 % – 66 % of maximum 6) EUT input voltage = 50 % of rated input voltage range, ±10 % 6) Based on EUT rated input operating range. For example, If range is between X volts and Y volts, 50 % of range =X + 0,5 × (Y – X). Y shall not exceed 0,8 × EUT maximum system voltage (i.e., maximum allowable array open circuit voltage). In any case, the EUT should not be operated outside of its allowable input voltage range.


Page 1 of 72


Disconnection at No. 5 of PAC 0% and QAC -1% reactive load

Note: Green waveform: the current IAC pass through S1 of Figure 5. The fundamental(50Hz) component of IAC at PAC 0% and QAC -1% is 4,8mA. When the switch S1 was opened, the current IAC feed into the gird(AC power source) will turn to absolute zero. CH1: EUT current CH2: Gird voltage CH3: IAC current into the grid


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6.1 Islanding protection according Table 7 – Load imbalance (reactive load) for test condition C (EUT output = 25 % – 33 %)

Test conditions

Frequency: 50+/-0,1Hz UN=230+/-3Vac Distortion factor of chokes < 2% Quality =1

Disconnection limit


1)

2)

3)

P

No



PAC [% of nominal]

QAC [% of nominal]

PEUT [W per phase]

VDC [V]

Qf [1]

Run on Time [ms]

1

33

33

0

-5

1527

150

0,95

83,6

IB

2

33

33

0

-4

1532

150

0,96

79,6

IB

3

33

33

0

-3

1521

150

0,97

72,6

IB

4

33

33

0

-2

1532

150

0,98

82,6

IB

5

33

33

0

-1

1526

150

0,99

97,6

IB

6

33

33

0

0

1528

150

1,00

136,4

BL

7

33

33

0

1

1546

150

1,01

120,6

IB

8

33

33

0

2

1539

150

1,02

123,6

IB

9

33

33

0

3

1542

150

1,03

88,6

IB

10

33

33

0

4

1535

150

1,04

95,6

IB

11

33

33

0

5

1532

150

1,05

80,6

IB


L= 110,98 mH

R= 34,85 Ω

Remarks 5)

C= 91,39 µF

Note: RLC is adjusted to min. +/-1% of the inverter rated output power 1) PEUT: EUT output power 2) PAC: Real power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 3) QAC: Reactive power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 4) Fundamental of IAC when RLC is adjusted 5) BL: Balance condition, IB: Imbalance condition. Condition B: 6) EUT output power PEUT = 25 % – 33 % of maximum 7) EUT input voltage = <10 % of rated input voltage range 6) Or minimum allowable EUT output level if greater than 33 %. 7) Based on EUT rated input operating range. For example, If range is between X volts and Y volts, 10 % of range =X + 0,2 × (Y – X). Y shall not exceed 0,8 × EUT maximum system voltage (i.e., maximum allowable array open circuit voltage). In any case, the EUT should not be operated outside of its allowable input voltage range.


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Annex 1 EMC Test Report


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Annex 2 Pictures of the unit


Page 1 of 72


Omniksol-5k-TL2 - front view

Omniksol-5k-TL2 - side view


Page 1 of 72


Omniksol-5k-TL2 rear

Omniksol-5k-TL2 - bottom view


Page 1 of 72


Omniksol-5k-TL2 - rear view

Omniksol-5k-TL2 - open view


Page 1 of 72


Photo for earthing connection

Photo of internal integrated RCD


Page 1 of 72


Omniksol-5k-TL2 - control board - component side

Omniksol-5k-TL2 - control board - Solder side


Page 1 of 72


Omniksol-5k-TL2 - power supply board - component side

Omniksol-5k-TL2 - power supply board - Solder side


Page 1 of 72


Omniksol-5k-TL2 - Display board - Component side

Omniksol-5k-TL2 - Display board - Solder side


Page 1 of 72


Omniksol-5k-TL2 - Main board - Component side

Omniksol-5k-TL2 - Main board - Solder side


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Annex 3 Test equipment list


Page 1 of 72


Tektronix Tektronix Tektronix

Last Calibration 26-Mar-15 24-Sep-14 04-Dec-14

25-Mar-16 23-Sep-15 03-Dec-15

P2220

Tektronix

04-Dec-14

03-Dec-15

A4089009SH

P6139B

Tektronix

26-Mar-15

25-Mar-16

A4089044SH

P6015

Tektronix

02-Feb-15

01-Fec-16

A4089004SH

P2220

Tektronix

04-Dec-14

03-Dec-15

A4089021SH A4089017SH

IT 700-S TCP0150

LEM Tektronix

14-Oct-14 24-Sep-14

13-Oct-15 23-Sep-15

A7040049SH

AFC-31010T

APC

26-Apr-15

25-Apr-17

A7040071SH

61512

Chroma

13-Mar-14

12-Mar-16

A7040058SH

62150H-1000S

Chroma

-

-

A7040059SH

62150H-1000S

Chroma

-

-

A7040069SH

62150H-1000S

Chroma

-

-

A7040070SH

62150H-1000S

Chroma

-

-

-

-

05-Feb-15 28-Sep-14

04-Feb-16 27-Sep-15

-

-

-

-

-

-

No.

Equipment

Internal No.

Type/characteristics

Manufacturer

1 2 3

Oscilloscope Oscilloscope Oscilloscope High Voltage probe High Voltage probe High Voltage probe High Voltage probe Current probe Current probe AC power supply AC power supply

A4089008SH A4089024SH A4089035SH

DPO3014 P4034B TDS 2014C

A4089004SH

4 5 6 7 8 9 10 11 12

Programmable DC source

A7150074SH

ACTL-380SH

qunling

17 18

Programmable DC source Programmable DC source Programmable DC source anti-isolating test stystem Power Analyzer roll ruler

A1240096SH B1040160SH

WT3000 5m

19

load cabinet

A7150082SH

WSTF-LDJ150K/04S

20

load cabinet

A7150083SH

WSTF-LDJ60K/300

21

load cabinet

A7150077SH

WSTF-RC25k/0.3D 0.001kVA-25kVA

YOKOGAWA TAJIMA shanghai wen shun shanghai wen shun shanghai wen shun

13 14 15 16

Due Data


IEC 62116

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