Lightening Arrester 500kVTest Report English

2008000711D 2008000711D

CNAS L026

(2009)检字 NO JBL100

Quality Inspection and Test Center for Equipment of Electric Power

INSPECTION REPORT

Address: No 143 Luyu Road, Hongshan District, Wuhan City, Hubei Province Post code: 430074 Tel: 4006565689 Fax: (027)59839810 Website: www.china-qitc.com E-mail: [email protected]

Quality Inspection and Test Test Center for Equipment of Electric Power

(2009)检字 NO JBL100

1.

Client: Nanyang Jinguan Electric Co., Ltd.

2.

Sample Introduction Name: Porcelain Housed Metal Oxide Surge Surge Arrester without Gap for 500kV AC System Type: Y20W-444/1063W, Manufacturer: Nanyang Jinguan Jinguan Electric Co., Ltd. Sampling Method: Sending samples Sample Quantity: Quantity: MOV 3 pieces (S1～S3)

Proportion Unit 16 pieces (R1 ～R3, L1～L6, O1～O3,T1～ T4)

MOV type: Ф115/Ф42*21mm

3. Test Standard GB11032-20 GB11032-2000 00 Metal Oxide Oxide Surge Surge Arrester Arrester without without Gap for AC AC System Q/JG01 Q/JG017-2 7-2000 000 Techni echnical cal Specifi Specificat cation ion for Metal Metal Oxide Oxide Surge Surge Arrester without Gap for AC System 4. Test Classification: Periodic test 5. Test Date: May 11, 2009～Oct. 10, 2010 6. Validity of Test Report: 3 years since the issued date o ur perio periodi dicc test test item itemss for for Y20W Y20W-7. Conc Conclu lusi sion on:: The The test test resul esults ts of f our 444/10 444/1063W 63W Porcel Porcelain ain Housed Housed Metal Metal Oxide Oxide Surge Surge Arreste Arresterr withou withoutt Gap for AC System send by Nanyang Jinguan Electric Co., Ltd. are all Eligible according to

GB11032-2000. Tested by: Tang Lin, Jia Jinzhao, Chen Li Checked by: Li Ze Verified erifie d by: Wang Yang Approved by: Huang Huang Yumin Position: Director Date: Oct. 16, 2009

http://www.whvri.com/jcbg http: //www.whvri.com/jcbg

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Quality Inspection and Test Center for Equipment of Electric Power (2009) Jian Zi

8. Test Test items and Result

Table for Periodic Test Test Items and Results

No. JBL 100

Seriel No. 1 Residual Voltage Test

2

34

4

Longduration Current Impulse Withstand Test

Operating Duty Test

Test Items Lig Lightni htnin ng Impu Impuls lsee Residual Residua l Voltage Voltage Test Steep Current Residual Residua l Voltage Voltage Test Switc witchi hin ng Impu Impuls lsee Residual Residua l Voltage Voltage Test Line Discharge Test

Standard Requirement ≤1063kV

Test Result 1063kV

Evaluation

≤1190kV

1159kV

Eligible

≤872kV

850kV

Eligible

Class 5 line discharge

Class 5 line discharge Current: 1154A～

Eligible

Eligible

1162A Time: 3450μs

Rectang angular Wave ave Impulse Current Withstand Test Artifici Artificial al accelera accelerated ted aging test Switc witchi hin ng Impu Impuls lsee Operation Duty Test

2000 μs,

2060μs,

2500A, 18times 115℃, 1000h

2540～

Pass the specified procedure switching impulse operating duty test, 2 times longduration current impulse energy noted should be not less than 14.0kJ/kV Power Fr Frequency Voltage W Wiithstand Supply Power Time Characteristic Test Frequency Voltage Withstand Time Characteristic under nder volta oltag ge ； range * 1.20U R ～

2552A

K ctct(max)= 0.68 Actual energy noted ＞ 23.04 kJ/kV

1.20U*R

0.2S

1.15U*R

1.1S

* 1.0U*R, and 1.10U R 30S time range:0.1S

～20min

Eligible

Eligible Eligible

Eligible

1.00U*R

1200S


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No. JBL 100

9. Test Value 1) Residual Voltage Test Testing samples: 3 pieces proportion units ( R1 ～R3) Standard requirements: a. measur measure e lig residual voltage voltage value value lightnin htning g impulse impulse curren currentt residual

under 8/20μs10kA,20kA,40kA, multiply proportion ratio, convert the

whole surge arrester residual voltage, take the maximum residual voltage voltage and then draw draw residual residual voltage voltage with the the current current relatio relation n curve. curve. The residua esiduall voltag voltage e relat related ed 20kA 20kA is define defined d as light lightnin ning g residual voltage of the surge arrester, which should not be larger than 1063kV. 1063kV. b. measure steep wave impulse current residual voltage value under 1/5μs 20kA, multiply proportion ratio, convert the whole surge arrester residual voltage, the maximum value is defined as steep wave impulse residual voltage of the surge arrester, which should not be large than 1190kV. residual voltage voltage value value c. measure switchin switching g impulse impulse current current residual under 30/80μs 2kA, multiply proportion ratio, convert the whole surge arre arreste sterr resid residual ual voltag voltage e for, for, the maxim maximum um value value is defin defined ed as switch switching ing impul impulse se resid residual ual voltag voltage e of the surge surge arre arreste ster, r, which which should not be large than 872kV. Conclusion: Residual Voltage level is eligible as per the standard requirements. Test Table3. Test wave see in diagram 1 ～3. value see in Table1 Table1～ Table3. Table 1 Test data for lightning impulse residual voltage Sample R1 R2 DC1mA C1mA refe refere ren nce 4.20. 4.20 voltage U1mA DC, kV Sample rated voltage 3.12 3.12 Usr, kVr.m.s. Samp Sample le Cont Contin inuo uous us 2.28 2.28 opera perati tio on volt voltag agee Usc, kVr k Vr.m.s. .m.s. Sample 6.64 6.67 8/20μs residual 10kA voltage, 8/20μs 7.36 7.34 kV 20kA 8/20μs

7.90

7.84

R3 4.20 3.12 2.28

6.69 7.34 7.85

40kA Whol Wholee piec piecee surg surgee arre arrest ster er DC1m DC1mA A refer ference voltage U1mA DC, kV Convert Proportion to whole ratio piece 8/20μs surge 10kA arrester 8/20μs residual 20kA voltage, 8/20μs

597≤U1mA.DC ≤6.06

144.3

144.3

144.3

958.1

962.4

965.3

1062

1059

1059

1140

1131

1133

kV

40kA Equivalent lightning impulse residual voltage under 20kA U20kA


1063

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Diagram 1 Lightning Impulse Residual Voltage Wave Diagram Sample R1, Voltage Voltage ratio of voltage divider Kct=66.93,

No. JBL 100

Current divider resistance Rs=0.008022Ω Table 2 Test data for steep wave impulse residual voltage Sample R1 R2 DC1mA C1mA refe refere ren nce 4.20. 4.20 voltage U1mA. DC, kV Sample rated voltage 3.12 3.12 Usr, kVr.m.s. Sample Sample Contin Continuou uouss 2.28 2.28 opera perati tio on volta oltage ge Usc, kVr k Vr.m.s. .m.s. Sample 7.90 8.03 1/5μs residual 20kA voltage, kV Whol Wholee piec piecee surg surgee 597≤U1mA.DC ≤606 arres arreste terr DC1m DC1mA A refer ference voltage U1mA.DC, kV Convert Proportion 144.3 144.3 to whole ratio piece 1140 1159 1/5μs surge 20kA arrester Maximum 1159 residual steep voltage, wave kV impulse residual voltage under 20kA

Diagram ram Wave Impulse Residual Voltage Wave Diagram Sample R2, Voltage Voltage ratio of voltage divider Kct=65.81, Current divider resistance Rs=0.004034 Ω

R3 4.20 3.12 2.28

8.03

144.3 1159

2

Steep


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Table 3 Test data for switching impulse residual voltage Sample R1 R2 DC1mA C1mA refe refere ren nce 4.20. 4.20 voltage U1mA.DC, kV Sample rated voltage 3.12 3.12 Usr, kVr.m.s. Sample Sample Contin Continuou uouss 2.28 2.28 opera perati tio on volta oltag ge Usc, kVr.m.s. Sample 5.83 5.84 30/80μs residual 2kA voltage,

No. JBL 100

R3 4.20 3.12 2.28

5.89

kV Whol Wholee piec piecee surg surgee arres arreste terr DC1m DC1mA A refer ference voltage age U1mADC, kV Convert Proportion to whole ratio piece 30/80μs surge 2kA arrester Maximum residual switching voltage, impulse kV residual voltage under 2kA

597≤U1mA. DC ≤606

144.3

144.3

144.3

841.2

842.6

849.8

850

Diagram 3 Switching Impulse Residual Voltage Voltage Wave Wave Diagram Sample R3, Voltage Voltage ratio of voltage divider Kct=66.93, Current divider resistance Rs=0.008022Ω 2. Long-duration Current Impulse Withstand Test Test 2.1 Line Discharge test Sample: 3 pieces proportion units (L 1～L3) Standard requirement: 3 pieces proportion units should pass class 5 line discharge test Conclusion: All of 3 pieces proportion have passed class 5 line discharge test, the test result are eligible as per the standard requirements. Test results see in table 4, and test wave see in diagram 4.

Table Table 4 test data for class 5 line discharge Measuring residual voltage, before test Calculating data

Sample U1mA.DC, kV 8/20μs U20kA,kV 30/80μs U500A, kV

Samp Sample le rated rated volt voltage age UR , kV

L1 8.30 14.72 11.03

L2 8.37 14.70 11.09

L3 8.33 14.72 11.04

6.17

6.22

6.20

st

1 discharge

18th discharge Measuring residual voltage, after test Sample checking after test

Ures, kV Line Line charg charging ing voltag voltagee UL, kV Line wave impedance Z, Ω Curr Curren entt peak peak Required value apparent data continuous time T0.9, μs Actual data Required energy absorb W, kJ Current, A Voltage, kV Energy, kJ Current, A Voltage, kV Energy, kJ Standard requirement

11.03 2.4UR =14.82 =14.82 0.5UR =3.09 =3.09 3200

3450 W=Ures*(UL-Ures)*1/Z*T=11.03*(14.81-11.03 ) /

3.09*3200=43.18 1154 11.42 45.47 1162 11.54 46.26 14.76 +0.27

U20kA change rate, %

Checking result

1162 11.54 46.26 1162 11.54 46.26

△U20kA ≤ 5%

8/20μs U20kA,kV

Standard requireme ement

1162 11.54 46.26 1154 11.42 45.47 14.77 +0.48

14.79 +0.48

Should no not be be pu punctur ture, no no fl flashover, no no dam damaage on samples No puncture, no flashover, no damage on samples


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No. JBL 100

Table Table 4 test data for class 5 line discharge Sample Measuring U1mA DC, kV residual 8/20μs U20Ka,kV voltage , 30/80μs U500A, kV before test Calculating Sample Sample rated rated voltag voltagee UR, data kV Ures, kV Line charging voltage UL, kV Line wave impedanceZ, Ω Current Required da data peak value apparent continuous Actual data time T0.9, T0.9,

L1 8.30 14.72 11.03

L2 8.37 14.70 11.09

L3 8.33 14.72 11.04

6.17

6.22

6.20

11.03 2.4UR=14.82 0.5UR=3.09 3200

3450

μs Required energy absorb W, kJ

W=Ures*(UL-Ures)*1/Z*T=11.03*(14.81-1 W=Ures*(UL-Ures)*1/Z*T=1 1.03*(14.81-11.03 1.03 )

/ 3.09*3200=43.18 First discharge 18th discharge

Current, A Voltage, kV Energy, kJ Current, A Voltage, kV Energy, kJ Standard requirement

Measuring residual 8/20μs U20Ka,kV voltage , U20kA change rate, % after test Sample Standard requireme ement checking after test Checking result

1154 11.42 45.47 1162 11.54 46.26

1162 11.54 46.26 1154 11.42 45.47

1162 11.54 46.26 1162 11.54 46.26

14.77 +0.48

14.79 +0.48

△U20kA ≤ 5% 14.76 +0.27

Should no not be be pu punctu cture, no no fl flashover, no no dam damaage on samples No puncture, no flashover, no damage on samples

Diagram 4 Class 5 Line Discharge Test Sample L1, first time, Current divider resistance Rs=0.04645 Ω Voltage ratio of voltage divider Ks=297.5 Rectangular Wave Impulse Current Test Sample: 3 pieces proportion units (L4 ～L6) Stan Standa dard rd requ requir ireme ement nt:: 3 piece piecess prop propor orti tion on units units shou should ld pass pass 2000 2000μs, 2500A(enterprise standard requirement), 18 times rectangular wave impulse current test. Conclusion: All of 3 pieces proportion have passed test, the test result are eligible as per the standard requirements. Test results see in table 5, and test wave see in diagram 5. 2.2


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Sheet 6 Artificial Accelerating Accelerating Ageing Ageing Test Item Samples Number S1 S2 DC 1mA reference 4.20 4.20 voltage U1mA DC, kV Applying power 2.82 2.82 frequency voltage, kVr.m.s. Chargeability, % 95.0 95.0 Power loss 2 7.49 7.23 hours/P1ct, W Power loss 4.84 4.82 1000(+48)hours/P2ct, W P1ct,/P2ct 0.64 0.67 Ageing coefficient of 1.0 zinc zinc oxide oxide varist varistors ors Kct(max) Remark: (1) because of Kct≤1.0, so applying rated voltage Usr and voltage Usc when switching impulse action load test. (2) Temperature of zinc oxide varistors: 115+/-4 ℃

S3 4.20 2.82

95.0 7.47 5.10

0.68

continuous operating

3.2 Switching Impulse Action Load Test Sheet 7 Switching Impulse Action Load Test Test Sample O1 O2 DC 1mA reference 4.14 4.15 voltage U1mA DC, kV Rated voltage Usr , 3.08 3.08 kVr.m.s.

O3 4.13 3.08

Cont Contin inuo uous us oper operat atin ing g voltage Usc, kVr.m.s. Ageing coefficient Kct Rated voltage U*sr , kVr.m.s. Cont Contin inuo uous us oper operat atin ing g voltage U*sc,kVr.m.s. 8/20us 8/20us U20kA, before before test, kV Applying voltage Prepare 1.20U*sc, kV test 20kA,8/20us, Applying times Fire angle(before peak value) HighFirst, kA current Second, kA impulse LongPre-heat duration time

2.46

2.46

2.46

3.08

3.08

3.08

2.46

2.46

2.46

7.29

7.32

7.30

2.95

2.95

2.95

<1.0

4 groups impulses, 5 times each group 54.0° 101.2 100.0

101.1 100.2

101.2 100.1

Preheat to 60+/-3℃

http:www.whvri.com/jcbg Current impulse

Curr Curren entt peak peak 2060 value apparent last lastin ing g time time,, T0.9, us First Current, A Voltage, kV Second Current, A Voltage, A Inject energy, two times, kJ Ratio energy, kJ/kV Applying Time Standard value power Actual value frequency Lasting ti time U*sr voltage after U*sc the the seco second nd longduration current impulse Samples Cooling to 20+/-15℃ cooling Residual Standard voltage after requirement testing 8/20 8/20us, us, U20kA, kV Change ratio of residual voltage, before test and

2540 2583 2540 6.78 6.78 6.78 2583 2540 2540 6.78 6.78 6.78 71.56 71.56 70.96 23.23 23.23 23.04 As soon as possible( no more than 100ms) 96 96 96 10s 10s 10s 30min 30min 30min

△U20kA≤5% 7.31

7.28

7.35

+0.27

+0.55

+0.68

after test

Samples Samples check check

Picture 6 Prepare test

No puncture, puncture, no flashover flashover,, no thermal thermal breakdow breakdown n and other damage phenomenon.

sample O1, transformation ratio Ks=100

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Picture 7: high current impulse, sample sample O1(second), divert divert shunt resistance Rs=0.001580Ω Rs=0.001580Ω

Picture 8: square wave impulse,sample O1(first), divert shunt resistance Rs=0.04645Ω voltage divider ratio Ks=297.5

Picture 9: switching impulse action load, sample O1, transformation ratio Ks=100 4. Power frequency voltage withstand time characteristics test Sample: 4pcs scale units(T1~T4) Standard: Standard: 4pcs scale units should should pass required power frequency frequency voltage withstand withstand time characteristics test. Test results: 4pcs passed power frequency frequency withstand withstand time characteristics characteristics test, test, the results results

accord

with standard, please refer to sheet 8 for detailed test data. Please refer to picture 10~picture 12 for wave form of tests. Sheet 8 Power Frequency Voltage Voltage Withstand Time Characteristics Characteristi cs Test Test Data Sample T1 T2 T3 T4 DC 1mA 4.12 4.12 4.12 4.12 reference voltage U1mA, DC, kV

http:www.whvri.com/jcbg Sample rated voltage Usr, kVr.m.s

3.06

3.06

3.06

3.06

Sample continuous operating voltage Usc, kVr.m.s Aging coefficient of zinc oxide varistor, Kct Sample rated voltage U*sr, kVr.m.s.

2.24

2.24

2.24

2.24

<1.0 3.06

3.06

3.06

3.06

Sample continuous operating voltage U*sc, kVr.m.s. Residual voltage before test 8/20 ｕ s, U20KA, kV

2.45

2.45

2.45

2.45

7.26

7.25

7.30

7.25

Longduration current impulse

Preheat to 60+/-3℃ 2060

Applying power frequency voltage after the

Samples preheat Current peak value apparent lasting time T0.9, us First Current, A Voltage, kV Secon Current, A d Voltage, kV Inject energy two times, kJ Ratio energy, kJ/kV

Time

ds Actual value, ms

2540 6.78 2583

2540 6.66 2583

2583 6.66 2540

6.66 70.92

6.78 70.93

6.78 70.92

2583 6.78 2583

6.66 71.5 2 23.18 23.18 23.18 23.3 7 As Standar soon as possible(no more than 100ms) 96 92 96 92

second long -duration current impulse

Applying power frequency voltage and lasting time

Samples cooling Residual voltage after test

Applyin g voltage kVr.m.s . U*sr multipl e Withsta nd time, s U*sc, kVr.m.s Lasting time, min

3.67

3.52

3.37

3.06

1.20

1.15

1.10

1.00

0.2

1.1

30

1200

2.24

2.24

2.24

2.24

30

30

30

30

Cooling to 20℃+/-15℃

Standards

△U20KA≤5%

8/20 ｕ s, U20KA, KV

7.32

7.32

7.38

7.29

Residual voltage change ratio before test and after test, %

+0.83

+0.96

+1 . 09

+0.55

Samples check

Samples no puncture, no flashover, no thermal breakdown and no other damage phenomenon.

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Pictu icture re

10:

powe powerr

frequ requen ency cy

volt voltaage

T1,1.20U*R ,0.2S,Transformation ,0.2S,Transformation ratio Ks=100

with withst staand

tim time

chara haraccter teristi istics cs

samp sample le

Picture 11: power frequency frequency voltage withstand time characteristics characteristics sample T2, 1.15U* 1.15U* R, 1.10s, transformation ratio Ks=100

Picture Picture 12: power frequenc frequency y voltage voltage withstand time characteris characteristics tics sample sample T3, 1.10U* 1.10U* R, 30s, transformation ratio Ks=100

www.whvri.com/jcbg Annex A. List of Test Test Equipments Rated voltage Ur: 444kV

Continuous operating voltage Uc: 324kV

Normal discharge current In:20kA Lightning impulse residual voltage Ures: ≤1063kV

N o.

Name/type

No.

Inspectio n Scale

Accura cy

1

8/20us impluse current making equipment 1/5us impluse current making equipment 30/80us impluse current making equipment

BL0 23

0-40kA

BL0 26

0~20kA

BL0 23

0~4kA

54

4/10 us high current impluse making equipment

BL02 5

0~150kA

5

Long duration impluse current making equipemnt DC reference voltage testing equipment LCD-4 resistance current testing equipment TDS2014 oscillograp h

BL0 24

0~3000A

0100

0~8kV

008

C043 996

2

3

6

7

8

9

HAEFELY 64M 64M peak peak value voltage meter

0804 522488

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Assay/correcting mechanism

Valid Date

/

Quality inspection and test center for equipment of electric power test report

2010-05-09

/


2010-05-15


2010-05-20


2010-05-13


2010-05-24

Class 1

National high-voltage metering station

2010-05-28

0~10mA

3%

National high-voltage metering station

2010-04-02

0-300V

2%

2010-05-25

0-1600V

Class 1

Hubei province metering and measurement technology research institute National high-voltage metering station

/

/

/

2010-06-01

Lightening Arrester 500kVTest Report English

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