TEST REPORT AS :2005 and AS :2005 Grid connection of energy systems via inverters Grid protection requirements

Transcription

1 TEST REPORT AS :2005 and AS :2005 Grid connection of energy systems via inverters Grid protection requirements Report reference No...: 09TH0459-AS4777_2 Tested by (printed name and signature)...: Georg Loritz Approved by (printed name and signature)...: Frank Hesmer Date of issue...: Testing Laboratory Name...: Bureau Veritas Consumer Products Services Germany GmbH Address...: Businesspark A96, Türkheim, Germany Testing location...: same as above Applicant's Name...: Ablerex Electronics Co., Ltd. Address...: 1F, No. 3, Lane 7, Paokao Road Hsintien 23114, Taiwan Test specification Standard...: AS :2005 and AS :2005 Non-standard test method...: None Test Report Form No...: AS4777_B D-PL Master TRF...: Bureau Veritas Consumer Products Services Germany GmbH Test item description...: Solar Inverter Trademark...: Model / Type...: ES1650, ES2200, ES3300, ES4200, ES5000 Ratings...: ES1650 ES2200 ES3300 ES4200 ES5000 Input Voltage: V (150V 450V MPP) Max. Input current: 10,5A 14,6A 22A 14A 14A 17,6A 17,6A Output Voltage: 230V / 50Hz Nom. Output current: 6,5A 8,7A 13A 17,4A 21,7A Output power: nom 1500W nom 2000W nom 3000W nom 4000W nom 5000W

2 Page 2 of 46 Copy of marking plate:

3 Page 3 of 46 History Sheet: Name Date Comment Revision Georg Loritz Initial report was written Rev. 0 Georg Loritz Reference project number adapted Rev. 1 Georg Loritz New inverter model ES1650 included Rev. 2 Address of the manufacturer sites: Ablerex Electronics (SUZHOU) Co., Ltd. No. 36, Wangwu Road, Wuzhong District, Shuzhou City, Jiangsu Province, P.R. China

4 Page 4 of 46 Particulars: Equipment mobility...: Operating condition... Class of equipment...: Protection against ingress of water...:...: Test case verdicts: Test case does not apply to the test object... : Test item does meet the requirement... : Test item does not meet the requirement...: Testing: Permanent connection Continuous Class I IP65 according to EN N/A P(ass) F(ail) Date of receipt of test item...: , , Date(s) of performance of test...: till General remarks: The test result presented in this report relate only to the object(s) tested. This report shall not be reproduced, except in full, without the written approval of the applicant. (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 unit was reviewed to AS :2005 Grid connection of energy systems via inverters, Part 2: Inverter requirements AS :2005 Grid connection of energy systems via inverters, Part 3: Grid protection requirements and the unit fulfils the requirements of the European EMC directive requirements. The EMC requirements of AS (flicker) refer to the same standards as the EMC directive; therefore the EMC report documents show the compliance. 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

5 Page 5 of 46 General product information: The Solar Inverter converts DC voltage into AC voltage. The input and output are protected by varistors to Earth. The unit is providing EMC filtering at the output towards mains. The unit does not provide galvanic separation from input to output. The output is switched off redundantly by the high power switching bridge and two relays in series. This assures that the opening of the output circuit will also operate in case of one error. 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. With the sensor CT1 the current is measured so that two independent signals are created. These two signals are linked to both controllers. The main controller and redundant controller communicate with each other. There are two relays in serial on each path (L1 and N). Each controls one pair of relays (one relay at each path). In addition the power bridge can be stopped by both controller. Before start-up, the inverter measures the insulation resistance of DC+/- to GND. If the value is smaller than the intern configured value, the inverter will not connect to the grid. The measurements had been performed with two units, one of each series. The Series are devided in the ES5000 / ES4400 and the ES3300 / ES2200 / ES1650. All the results are applicable to the other unit of the series. Blockdiagramm:

6 Page 6 of 46 AS Clause Requirement Test Result - Remark Verdict 4 INVERTER REQUIREMENTS 4.1 General An applicable test report according to AS3100 must be provided by the manufacturer 4.2 Compatibility with electrical installation The inverter has voltage and frequency ratings compatible with AS (230V AC, 50Hz) 4.3 Power flow direction In either direction P 4.4 (A1) Power factor See Test report 4.4 P 4.5 (B1) Harmonic currents See Test report 4.5 P 4.6 Voltage fluctuations and flicker Covered by EMC Report N/A 4.7 Impulse protection See Test report 4.7 P 4.8 Transient voltage limits See Test report 4.8 P 4.9 Direct current injection See Test report 4.9 P 4.10 Data logging and communication devices An applicable test report according to IEC60950 or an equivalent report must be provided. P P P

7 Page 7 of 46 AS Clause Requirement Test Result - Remark Verdict 4 GENERAL AND SAFETY REQUIREMENTS 4.1 General The automatic disconnection device is integral part of the inverter. 4.2 Electrical Safety An applicable test report according to AS/NZS 3100 must be provided by the manufacturer 4.3 Connection to Low-Voltage distribution network The inverter has voltage and frequency in accordance with AS (230V AC, 50Hz) 4.4 Voltage flicker See enclosed EMC Report P 4.5 Impulse protection See Test report 4.7 P 4.6 Data logging and communication devices An applicable test report according to IEC60950 or an equivalent report must be provided. 5. GRID PROTECTION REQUIREMENTS 5.1 General The device includes an automatic disconnecting facility for renewable power generator installations (under/ over voltage/ under/ over frequency and anti islanding), see test Report 5.2 Disconnect device The unit provides galvanic separation. The unit is switched off redundant by the high power bridge of the inverter and the relays in line and neutral. 5.3 Voltage and frequency limits (passive anti islanding protection) See enclosed report Sustained operation N/A 5.5 Active anti islanding protection See enclosed report 5.5 P 5.6 Reconnection procedure The unit provides monitoring of the voltage, frequency and synchronisation. If one of these conditions is not met, then the unit is not switching on. 5.7 Security of protection settings Settings only available with password for the service personal. 5.8 Compliance with grid protection requirements Appendix B4 noticed P P P P P P P P P P

8 Page 8 of 46 Test results AS (A1) POWER FACTOR TEST P ES5000 Output Power (%) 20+/-5 30+/-5 40+/-5 50+/-5 60+/-5 70+/-5 80+/-5 90+/ /-5 Output Power Test Value 1,01 1,48 1,98 2,47 2,95 3,47 3,97 4,51 4,85 (kw) Vrms (V) 230,6 231,7 233,1 234,1 235,1 236,2 237, ,2 Arms (A) 4,6 6,5 8,7 10,6 12,6 14,7 16,7 18,9 20,1 Output Power Test Value 1,05 1,51 2,02 2,49 2,96 3,48 3,98 4,52 4,86 (kva) Power Factor Limit leading/lagging >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i Power Factor 0,945i 0,975i 0,987i 0,993i 0,996i 0,998i 0,998i 0,999i 0,999i ES2200 Output Power (%) Output Power Test Value (kw) 20+/-5 30+/-5 40+/-5 50+/-5 60+/-5 70+/-5 80+/-5 90+/ /-5 0,39 0,61 0,79 0,98 1,19 1,39 1,59 1,80 1,98 Vrms (V) 230,5 231,1 231,6 232,2 232,3 233,0 233,9 234,1 234,2 Arms (A) 2,1 2,9 3,5 4,4 5,2 6,1 6,9 7,8 8,6 Output Power Test Value (kva) Power Factor Limit leading/lagging 0,49 0,67 0,85 1,00 1,22 1,41 1,61 1,81 2,00 >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i >0,8c/ >0,95i Power Factor 0,801i 0,903i 0,940i 0,961i 0,975i 0,982i 0,988i 0,990i 0,993i Note: Inverter shall be connected to test circuit Figure A1 (AS4777.2), Grid nominal voltage should be within 5%, Via dc input set ac output power (VA) so that it equals to 20+/-5% of rated output. Power factor of inverter shall be measured. Repeat for operating at 30+/-5%, 40+/-5%, 50+/-5%, 60+/-5%, 70+/-5%, 80+/-5%, 90+/-5% and 100+/-5%. The power factor has to be in the range of 0,8c and 0,95i. See limitations for voltage generators (Clause 4.4). c: capacitive / leading i: inductive / lagging *All the results are applicable to the ES1650, ES3300 and ES4400.

9 Page 9 of (B1) Harmonic Current Limit Test P Watts VA ES5000 4,80kW 4,80VA Vrms 238,9V Arms 20,2A PF 0,999 Frequency 49,99Hz THD50 2,36% Harmonic s Current Magnitude (A) % of Fundamental Phase Harmonic Current Limits (%) 1st 18,918 99,952 Single Phase 2nd 0,025 0,133 Single Phase 1% 3rd 0,087 0,461 Single Phase 4% 4th 0,019 0,099 Single Phase 1% 5th 0,227 1,200 Single Phase 4% 6th 0,011 0,059 Single Phase 1% 7th 0,118 0,626 Single Phase 4% 8th 0,021 0,113 Single Phase 1% 9th 0,120 0,635 Single Phase 4% 10th 0,018 0,093 Single Phase 0,5% 11th 0,099 0,526 Single Phase 2% 12th 0,015 0,078 Single Phase 0,5% 13th 0,149 0,790 Single Phase 2% 14th 0,019 0,102 Single Phase 0,5% 15th 0,037 0,195 Single Phase 2% 16th 0,016 0,086 Single Phase 0,5% 17th 0,087 0,459 Single Phase 1,5% 18th 0,012 0,066 Single Phase 0,5% 19th 0,105 0,554 Single Phase 1,5% 20th 0,015 0,080 Single Phase 0,5% 21th 0,084 0,444 Single Phase 1,5% 22th 0,015 0,078 Single Phase 0,5% 23th 0,099 0,524 Single Phase 0,6% 24th 0,016 0,084 Single Phase 0,5% 25th 0,066 0,347 Single Phase 0,6% 26th 0,017 0,089 Single Phase 0,5% 27th 0,075 0,398 Single Phase 0,6% 28th 0,071 0,374 Single Phase 0,5% 29th 0,107 0,565 Single Phase 0,6% 30th 0,035 0,185 Single Phase 0,5% 31th 0,024 0,129 Single Phase 0,6% 32th 0,024 0,126 Single Phase 0,5% 33th 0,029 0,155 Single Phase 0,6% Note: Inverter shall be connected to test circuit Figure B1 (AS4777.2), Grid nominal voltage within +/-5%, AC-Frequency 50+/- 1Hz and Phase angle between 3 phases shall be 120+/-1,5. Via DC-input set AC-output power (VA) so that it equals to 100+/-5% of rated output. Harmonic current content shall be measured. Limits based on percentage of fundamental! *All the results are applicable to ES4400.

10 Page 10 of (B1) Harmonic Current Limit Test P Watts VA ES3300 3,16kW 3,16VA Vrms 230,5V Arms 13,7A PF 0,998 Frequency 49,99Hz THD50 0,173 Harmonic s Current Magnitude (A) % of Fundamental Phase Harmonic Current Limits (%) 1st 13,689 99,93% Single Phase 2nd 0,045 0,33% Single Phase 1% 3rd 0,065 0,48% Single Phase 4% 4th 0,015 0,11% Single Phase 1% 5th 0,134 0,98% Single Phase 4% 6th 0,018 0,13% Single Phase 1% 7th 0,045 0,33% Single Phase 4% 8th 0,012 0,09% Single Phase 1% 9th 0,032 0,23% Single Phase 4% 10th 0,018 0,13% Single Phase 0,5% 11th 0,054 0,40% Single Phase 2% 12th 0,023 0,17% Single Phase 0,5% 13th 0,083 0,60% Single Phase 2% 14th 0,018 0,13% Single Phase 0,5% 15th 0,036 0,26% Single Phase 2% 16th 0,026 0,19% Single Phase 0,5% 17th 0,067 0,49% Single Phase 1,5% 18th 0,024 0,18% Single Phase 0,5% 19th 0,059 0,43% Single Phase 1,5% 20th 0,016 0,12% Single Phase 0,5% 21th 0,046 0,34% Single Phase 1,5% 22th 0,007 0,05% Single Phase 0,5% 23th 0,022 0,16% Single Phase 0,6% 24th 0,015 0,11% Single Phase 0,5% 25th 0,019 0,14% Single Phase 0,6% 26th 0,013 0,10% Single Phase 0,5% 27th 0,025 0,18% Single Phase 0,6% 28th 0,042 0,31% Single Phase 0,5% 29th 0,045 0,33% Single Phase 0,6% 30th 0,057 0,41% Single Phase 0,5% 31th 0,046 0,34% Single Phase 0,6% 32th 0,026 0,19% Single Phase 0,5% 33th 0,047 0,35% Single Phase 0,6% Note: Inverter shall be connected to test circuit Figure B1 (AS4777.2), Grid nominal voltage within +/-5%, AC-Frequency 50+/- 1Hz and Phase angle between 3 phases shall be 120+/-1,5. Via DC-input set AC-output power (VA) so that it equals to 100+/-5% of rated output. Harmonic current content shall be measured. Limits based on percentage of fundamental! *All the results are applicable to the ES1650, ES2200.

11 Page 11 of (B1) Harmonic Voltage Limit Test P ES5000 Test conditions: Vrms 238,9V Frequency 49,99Hz THD50 0,150% Harmonic s Voltage Magnitude (V) % of Fundamental Phase Harmonic Limits of Test Voltage (%) 1st 238,900 99,993 Single Phase 2nd 0,013 0,006 Single Phase 0,2% 3rd 0,307 0,134 Single Phase 0,9% 4th 0,002 0,001 Single Phase 0,2% 5th 0,033 0,015 Single Phase 0,4% 6th 0,003 0,002 Single Phase 0,2% 7th 0,010 0,004 Single Phase 0,3% 8th 0,007 0,003 Single Phase 0,2% 9th 0,016 0,007 Single Phase 0,2% 10th 0,007 0,003 Single Phase 0,2% 11th 0,016 0,007 Single Phase 0,1% 12th 0,006 0,003 Single Phase 0,1% 13th 0,024 0,011 Single Phase 0,1% 14th 0,005 0,002 Single Phase 0,1% 15th 0,019 0,008 Single Phase 0,1% 16th 0,007 0,003 Single Phase 0,1% 17th 0,024 0,010 Single Phase 0,1% 18th 0,006 0,002 Single Phase 0,1% 19th 0,014 0,006 Single Phase 0,1% 20th 0,005 0,002 Single Phase 0,1% 21th 0,025 0,011 Single Phase 0,1% 22th 0,004 0,002 Single Phase 0,1% 23th 0,019 0,008 Single Phase 0,1% 24th 0,003 0,001 Single Phase 0,1% 25th 0,019 0,008 Single Phase 0,1% 26th 0,005 0,002 Single Phase 0,1% 27th 0,022 0,010 Single Phase 0,1% 28th 0,003 0,001 Single Phase 0,1% 29th 0,023 0,010 Single Phase 0,1% 30th 0,003 0,001 Single Phase 0,1% 31th 0,023 0,010 Single Phase 0,1% 32th 0,005 0,002 Single Phase 0,1% 33th 0,019 0,008 Single Phase 0,1% 34th 0,002 0,001 Single Phase 0,1% 35th 0,024 0,010 Single Phase 0,1% 36th 0,002 0,001 Single Phase 0,1% 37th 0,016 0,007 Single Phase 0,1% 38th 0,003 0,001 Single Phase 0,1% 39th 0,022 0,010 Single Phase 0,1% 40th 0,003 0,001 Single Phase 0,1% 41th 0,011 0,005 Single Phase 0,1% 42th 0,005 0,002 Single Phase 0,1% 43th 0,020 0,009 Single Phase 0,1%

12 Page 12 of 46 44th 0,003 0,001 Single Phase 0,1% 45th 0,020 0,009 Single Phase 0,1% 46th 0,002 0,001 Single Phase 0,1% 47th 0,020 0,009 Single Phase 0,1% 48th 0,003 0,001 Single Phase 0,1% 49th 0,024 0,011 Single Phase 0,1% 50th 0,003 0,001 Single Phase 0,1% Note: Inverter shall be connected to test circuit Figure B1 (AS4777.2), Grid nominal voltage within +/-5%, AC-Frequency 50+/- 1Hz and Phase angle between 3 phases shall be 120+/-1,5. Via DC-input set AC-output power (VA) so that it equals to 100+/-5% of rated output. Harmonic ratios of the test voltage shall be measured. Limits based on percentage of fundamental! Total harmonic distortion to the 50th harmonic 5% *All the results are applicable to the ES4400, ES3300, ES2200 and ES1650.

13 Page 13 of Voltage Fluctuations and Flicker P The flicker was carried out as per AS/NZS using ZES Zimmer Electronic Syst. LMG Test conditions: Grid Voltage: Frequency: Inverter output power: Test duration: 2 Hours The flicker level during the test was found to be lower than the permissible limit as per AS/NZS Note: Maximum permissible voltage fluctuation (expressed as a percentage of nominal voltage at 100% power) and flicker. Less than 16A per phase according to AS/NZS , more than 16 A per phase according to AS/NZS For test results see Annex 1 EMC Report.

14 Page 14 of Impulse protection (5KV with a 1.2/50 Signal) P ES5000 Test DC Terminals AC Terminals Apply impuls connection connection voltage bewteen: 1 Short circuited Open DC and Earth terminals 2 Short circuited Open DC and Earth terminals 3 Open Short circuited AC and Earth terminals 4 Open Short circuited AC and Earth terminals 5 Short circuited & AC and DC + Short circuited connected on earth Earth terminals 6 Short circuited & AC and DC + Short circuited connected on earth Earth terminals ES3300 Test DC Terminals AC Terminals Apply impuls connection connection voltage bewteen: 1 Short circuited Open DC and Earth terminals 2 Short circuited Open DC and Earth terminals 3 Open Short circuited AC and Earth terminals 4 Open Short circuited AC and Earth terminals 5 Short circuited & AC and DC + Short circuited connected on earth Earth terminals 6 Short circuited & AC and DC + Short circuited connected on earth Earth terminals Test Voltage +5KV -5KV +5KV -5KV +5KV -5KV Test Voltage +5KV -5KV +5KV -5KV +5KV breakdown No No No No No No breakdown Note: After applying the impulse, the test inverter was tested for normal operation. The inverter operated normal. There is no significant change in the performance of the test inverter. *All the results are applicable to the ES1650, ES2200 and ES KV No No No No No No

15 Page 15 of Transient Voltage Limit Test P 10+/-5% Output Power (VA) 50+/-5% Output Power (VA) 100+/-5% Output Power (VA) Duration (s) Line to line (V) Line to neutral Line to line (V) Line to line (V) Line to neutral (V) Duratio n (s) (V) ES5000 Duratio n (s) Line to neutral (V) Limit 0,010* 450* N/A 0,009* 455* N/A 0,010* 450* N/A Test value 0, N/A 0, N/A 0, N/A Limit 0, N/A 0, N/A 0, N/A Test value 0, N/A 0, N/A 0, N/A Limit 0, N/A 0, N/A 0, N/A Test value 0, N/A 0, N/A 0, N/A ES2200 Limit N/A N/A N/A N/A N/A N/A 0, N/A Test value N/A N/A N/A N/A N/A N/A 0, N/A Limit N/A N/A N/A N/A N/A N/A 0, N/A Test value N/A N/A N/A N/A N/A N/A 0, N/A * linear interpolated values Note: Results shall not exceed limits in Table 3 of AS Test Specifications: Inverter shall be connected to test circuit AS Figure C1, Appendix C. Grid nominal voltage within +/-5%, Via DC-input set AC- output power so that it equals to 10+/-5% of rated output (VA). Switch S shall be opened and the output voltage duration (Sample frequency of at least 10KHz) of the inverter shall be recorded. Test shall be repeated at 50+/-5% and 100+/-5% of rated output power. *All the results are applicable to the ES1650, ES2200 and ES4400.

16 Page 16 of Direct current injection (max 0,5% of rated output current or 5mA) P Testing at 100+/-5% Output Power Phases Test value L1-L1 (ma) Single phase! L1-L2 (ma) Single phase! L1-L3 (ma) Single phase! ES5000 L2-L3 (ma) Single phase! L1-N (ma) P L2-N (ma) Single phase! L3-N (ma) Single phase! diagramm of permanent DC injection ES , , ,050 power (W) ,000 dc current (A) , , , time (500ms cycle) power (W) dc current (A) dc current limit (A) dc current limit (A) 10 per. Mov. Avg. (dc current (A)) Note: If the inverter does not incorporate a mains frequency isolating transformer, it shall be type tested to ensure the dc output current at the ac terminals of the inverter is below the above limits at all power levels. *All the results are applicable to ES4400.

17 Page 17 of 46 Phase Test value L1-L1 (ma) Single phase! L1-L2 (ma) Single phase! L1-L3 (ma) Single phase! ES3300 L2-L3 (ma) Single phase! L1-N (ma) P L2-N (ma) Single phase! L3-N (ma) Single phase! diagramm of permanent DC injection ES , , , ,020 power (W) ,000 dc current (A) , , , time (500ms cycle) -0,080 power (W) dc current (A) dc current limit (A) dc current limit (A) 10 per. Mov. Avg. (dc current (A)) Note: If the inverter does not incorporate a mains frequency isolating transformer, it shall be type tested to ensure the dc output current at the ac terminals of the inverter is below the above limits at all power levels. *All the results are applicable to the ES1650 and ES2200.

18 Page 18 of 46 Test results AS Under- and Overvoltage trip settings and dis- and reconnection test P Output power level: 50+/-5% max. 1kVA ES2200 Test Under Voltage (V) Time to disconnect (s) Time to reconnect (s) AS Limit >=200 V <=2s >=60s Actual setting 200,0V 2s 60s Trip value 199,9V 0,040s 70 Test Over Voltage (V) Time to disconnect (s) Time to reconnect (s) AS Limit <=270 V <=2s >=60s Actual setting 270,0V 2s 60s Trip value 268,9V 0,048s 70s Under voltage:

19 Page 19 of 46 Over voltage: Note: Actual settings are the settings of the inverter. The trip value is the measured value. It has to be in the range of +/- 5V of the actual setting. 1. Actual under-voltage setting set to minimum value but minimum 200V, set AC supply to nominal grid voltage and frequency 50+/-0,2Hz and 50+/-5% output power, but maximum 1KVA, slowly decrease ac supply voltage until inverter disconnects. Record disconnection voltage. Set AC-supply voltage back to nominal voltage, record reconnection time (B3.4), than decrease AC-supply voltage to recorded disconnection voltage (Step 1) + 2V. Rapidly decrease voltage, measure time interval between passing through recorded disconnection voltage (Step 1) and inverter disconnection. 2. Actual over voltage setting set to maximum value but maximum 270V, ac supply to nominal grid voltage and 50+/-5% output power, but maximum 1KVA. Slowly increase ac supply voltage until inverter disconnects, recording disconnection voltage. AC supply voltage back to nominal voltage, recording reconnection time (B3.4), increase AC supply voltage to recorded switch off voltage (Step 3) 2V. Rapidly increase voltage, measure time interval between passing through recorded switch off voltage (Step 3) and inverter disconnection. *All the results are applicable to the ES5000, ES4400, ES3300 and ES1650.

20 Page 20 of Under and over frequency trip settings and reconnection test P Output power level: 50+/-5% max.1kva ES2200 Test Under Frequency (Hz) Time to disconnect (s) Time to reconnect (s) AS Limit >=45Hz <=2s >=60s Actual setting 45,1Hz 2s 60s Trip value 45,1Hz 0,041s 70s Test Over Frequency (Hz) Time to disconnect (s) Time to reconnect (s) AS Limit <=55Hz <=2s >=60s Actual setting 54,90Hz 2s 60s Trip value 54,86Hz 0,034s 70s Under frequency:

21 Page 21 of 46 Over frequency: Note: Actual settings are the settings of the inverter. The trip has to be in the range of +/- 0,1Hz of the actual setting. 1.Actual under frequency setting set to minimum value but minimum 45Hz, AC-supply frequency 50+/-0,2Hz and 50+/-5% output power, but maximum 1KVA. Slowly decrease ac supply frequency until inverter disconnects. Record disconnection frequency. Ac supply frequency back to 50+/-0,2Hz, record reconnection time (B3.4), decrease ac supply frequency to recorded disconnection frequency (Step 1) + 0.1Hz. Rapidly decrease frequency, measure time interval between passing through recorded disconnection frequency (Step 1) and inverter disconnection. 2. Actual over frequency setting set to maximum value but maximum 55Hz, ac supply frequency 50+/-0,2Hz and 50+/-5% output power, but maximum 1KVA. Slowly increase ac supply frequency until inverter disconnects. Record disconnection frequency. Set ac supply frequency back to 50+/-0,2Hz, recording reconnection time (B3.4), and increase ac supply frequency to recorded switch off frequency (Step 3) - 0.1Hz. Rapidly increase frequency, measure time interval between passing through recorded switch off frequency (Step 3) and inverter disconnection. *All the results are applicable to the ES5000, ES4400, ES3300 and ES1650.

22 Page 22 of Grid Trip Test P B4.2 Local Load = Light Electronic Load P ES5000 Inverter output Power Approx. Inverter power Time to trip Disconnection Limit (W) (Average in Sec) (in sec) 10+/-5% 510 0,006 2s 50+/-5% ,004 2s 100+/-5% ,005 2s ES2200 Inverter output Power Approx. Inverter power Time to trip (W) (Average in Sec) 10+/-5% 180 0,005 2s 50+/-5% ,005 2s 100+/-5% ,003 2s Disconnection Limit (in sec) Light electronic load ES5000:

23 Page 23 of 46 Light electronic load ES2200: Light Electronic Load: Test circuit according to AS B4 (Figure B2 and B3). Grid voltage equal to nominal load. Via dc input control ac output power so that it equals to 10+/-5% of rated output. Switch S shall be opened and time interval for the inverter being disconnected shall be recorded. Same procedure for 50+/-5% and 100+/-5%. *All the results are applicable to the ES4400, ES3300 and ES1650.

24 Page 24 of 46 B4.3 Local Load = Load match P ES5000 Inverter output Power Approx. Inverter power (W) Time to trip (Average in Sec) Disconnection Limit (in sec) 10+/-5% 540 0,062 2s 50+/-5% ,046 2s 100+/-5% ,123 2s ES2200 Inverter output Power Approx. Inverter power (W) Time to trip (Average in Sec) 10+/-5% 250 0,048 2s 50+/-5% 998 0,062 2s 100+/-5% ,043 2s Disconnection Limit (in sec) Load match ES5000:

25 Page 25 of 46 Load match ES2200: Load match: Test circuit according to AS B4 (Figure B2 and B4) Grid voltage equal to nominal load +/-5%, R shall match real power output, L shall draw 100VAR and C shall load 100VAR. Via dc input control ac output power so that it equals to 10+/-5% of rated output. R shall be in- or decreased until resonant load matches real power output to within +/-5%.Inductive or capacitive load shall be adjusted until reactive power consumption matches the reactive power output of the inverter to within +/-5%. Switch S shall be opened and time interval of the inverter being disconnected shall be recorded. Same procedure for 50+/-5% and 100+/- 5%. *All the results are applicable to the ES4400, ES3300 and the ES1650.

26 Page 26 of 46 B4.4 Local Load = Load match + 10% P ES5000 Inverter output Power Approx. Inverter power (kw) Time to trip (Average in Sec) Disconnection Limit (in sec) 10+/-5% 530 0,047 2s 50+/-5% ,055 2s 100+/-5% ,068 2s ES2200 Inverter output Power Approx. Inverter power (kw) Time to trip (Average in Sec) 10+/-5% 250 0,056 2s 50+/-5% ,064 2s 100+/-5% ,055 2s Disconnection Limit (in sec) Load match + 10% ES5000:

27 Page 27 of 46 Load match + 10% ES2200: Load match plus 10%: Test circuit according to AS B4 (Figure B2 and B4). Grid voltage equal to nominal load. R shall match 1.1 times of real power output, L shall draw 100VAR and C shall load 100VAR. Via dc input control ac output power so that it equals to 10+/-5% of rated output. R shall be in- or decreased until resonant load matches real power output to within +/-5%. Inductive or capacitive load shall be varied until reactive power consumption matches 110% of the reactive power output of the inverter to within +/-5%. Switch S shall be opened and time interval of the inverter being disconnected shall be recorded. Same procedure for 50+/-5% and 100+/-5%. *All the results are applicable to the ES4400, ES3300 and ES1650.

28 Page 28 of 46 Annex 1 EMC report Stored at Bureau Veritas Consumer Products Services Germany GmbH Türkheim, in project 09TH0459

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38 Page 38 of 46 Annex 2 Pictures of the unit

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42 Page 42 of 46 ES5000

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45 Page 45 of 46 Annex 3 Test equipment list

46 Page 46 of 46 Equipment: Internal no.: Manufacture : Type Serieal no.: Last calibration : Next calibration : Current 110 Chauvin YPAC YDV Jun 2010 Jun 2011 Clamp Arnoux Current 157 Voltcraft VC Jun 2010 Jun 2011 Clamp AC Source 323 Chroma Multimeter 330 Keithley 2701/E Jul 2009 Jul 2010 TRMS 597 Gossen Metrahit RK0928 Aug 2009 Aug 2010 multimeter X-tra Digital Multimeter METRAHit 29S SF4220 Aug 2009 Aug GMC-I Gossen- Metrawatt GmbH Power Meter 334 ZES Zimmer Electronic Syst. Power Meter 335 ZES Zimmer Electronic Syst. LMG LMG Sep 2009 Sep Sep 2009 Sep 2010 DC Power 362 PCE A12KW E Supply DC Power 363 PCE A12KW E Supply DC Power 364 PCE A12KW E Supply DC- source 870 Regatron Model 0941CC133 T.C.P. DC- source 871 Regatron Model 0941CC134 T.C.P. 3-Phasen 446 Statron Trenntrafo 3-Phasen 596 Ruhstrat TIDMT A27468 Trenntrafo Hygro- /Thermo- /Barometer 450 Greisinger GFTB - Sep 2009 Sep 2010 Oscilloscop e Oscilloscop e Combination Wave Generator 547 Yokogawa GH222772/C10 Jun 2010 Jul 2012 J1/Z 324 Yokogawa DL EB06225 Jul 2010 Jul EMC Partner MIG F3.61 Inductor 884 Manfred Schmelzer GmbH Luftspule, 1,68H, 2,5A, 250V MS09259