Engineering Recommendation

Manufacturer: Jiangsu GoodWe Power Supply Technology Co., Ltd.

Address: No.189 Kun Lun Shan Road, Suzhou New District, Jiangsu

Tel: +86 512 6239 7998

Fax: +86 512 6239 7972

Post Code: 215163

Country: China

Test house details: Jiangsu GoodWe Power Supply Technology Co., Ltd.

R&D Department

Email: service@goodwe.com.cn

Type reference: GoodWe String Inverters GW10K-DT, GW12K-DT, GW15K-DT, GW17K-DT

Rated AC power: 10000W/12000W/15000W/17000W

Rated AC current: 17A/19A/25A/25A

The results of the G59/2 tests are summarized in this certificate. GoodWe declares hereby

that all units shipped to the UK comply with the specifications and parameters defined in G59/2

engineering recommendation. These settings cannot be changed by installer, user or by anyone

other than GoodWe. Complete documentation on test details are available at GoodWe on demand.

Test details

Harmonic current emissions according to BS EN 61000-3-12

Voltage fluctuations and flicker according to BS EN 61000-3-11

DC injection / Power factor

Under / Over frequency tests

Under / Over voltage tests

Loss of mains test

Reconnection time

Jiangsu GoodWe Power Supply Technology Co., Ltd.

Suzhou, 21/06/2012

Zhang Kun

Manager of Technical Support Department

Certificate G59/2

Power quality

Description

Harmonic:

Limit:

Actual Value

(For GW17K-DT)

Actual Value

(For GW10K-DT)

G59/2 Limit (at Zref)

Actual Value (at Zref)

G59/2 Limit

Test level

Test value

(for GW17K-DT)

Test value

(for GW10K-DT)

Under / Over voltage

L1-N

L2-N

L3-N

Under voltage stage2

L1-N

L2-N

L3-N

Over voltage stage1

L1-N

L2-N

L3-N

Over voltage stage2

L1-N

L2-N

L3-N

Under / Over frequency

8.72

<0.2% <0.2% <0.2% 0.995 0.994 0.994

3.3 3.3

dmax %

4

Pst

1

Pl t

0.65

0.07

10%

<0.2%

55%

<0.2%

Power factor

0.95 lagging...0.95 leading at three voltage levels

230 V 248 V

Value of Short Circuit Power Ssc corresponding to Rsce:

- 3.1 2

- 0.457 0.467

d(t) % dc%

2.020.486

13-

-

10.7 7.2

- 0.854 0.775 - 0.816 0.817 2.49

2.5s

212 V

0.998 0.997

DC injection

Under / Over voltage test

0.25% of rated output current.

Tested at three power levels

561kVA

Harmonic current emissions as per BS EN 61000-3-12

Harmonic Current

Distortion Factors (%)

PWHD

22

5.65

33Minimal Short Circuit Ratio Rsce:

0.543

Harmonic Current % = 100In/I1

13th THD3rd 5th 7th 9th 11th

G59/2 Limit Setting Test Result

0.25

100%

<0.2% 0.997

- 0.10

204.3 242.8ms

203 2.4s 204.3 243.5ms

203

Under voltage stage1 Voltage(V) Time Voltage(V) Time

200.1

200.1

203 2.4s200.1 2.5s

Voltage(V) Time

2.4s 204.3 201ms

2.5s

184 0.5 s 186 0.12s 186 145.5ms

184 0.5 s 186 0.12s 186 132.5ms

253 1 s 250 0.9 s 251.6 914ms

Voltage(V) Time Voltage(V) Time Voltage(V) Time

253 1 s 250 0.9 s 252.3 928ms

Voltage(V)

253 1 s 250 0.9 s 252.6 914ms

Time Voltage(V) Time Voltage(V) Time

264.5 0.5 s 261 0.06s 264 84.5ms

Under / Over frequency test

264.5 0.5 s 261 0.06s 263

Voltage(V) Time Voltage(V) Time Voltage(V) Time

184 0.5 s 186 0.12s 186 128.5ms

101ms

264.5 0.5 s 261 0.06s 264 80ms

G59/2 Limit Setting Test Result

Frequency(Hz) Time Frequency(Hz) Time Frequency(Hz) Time

Reconnection timeReconnection time

G59/2 Limit

Actual setting

Recorded value

SSEG short circuit test

Self monitoring – solid state switching

Comments

As SSEGs (small-scale embedded generators) for PV systems are inverter-connected, they are deemed to automatically comply with

Not applicable since electro-mechanical relays are used.

GW10K-DT、GW12K-DT、GW15K-DT are similar with GW17K-DT in circuit and construction except for output rating of current and

Power. The test result can refer to GW17K-DT

Under / Over voltage

180 s 180 s 180 s

180 s 180 s 180 s

180 s 180 s 180 s