SiC灭磁电阻型式试验报告
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Type Test Report
for SiC Non-Linear Resistor M & I Materials - METROSIL
CONTENT:
1.Introduction (3)
2.Test Set-up (4)
3.Test No. 1: 2’200 A; 620 V; 0,5 seconds (5)
4.Test No. 2: 6’000 A; 0,1 seconds (6)
5.Records of the Test No. 1 (7)
6.Records of the Test No. 2 (13)
1. Introduction
The test was performed on a set of the SiC non-linear resistors of type 600A /US16/ p / Spec. 6298. The purpose of the test was to investigate the loading capability of the SiC non-linear resistor for two cases:
No. 1: Intermittent load with current of approximately 2’200 A and duty cycle:
- Loading period was 0,5 seconds
- Cooling period was 30 minutes
- Repetition of duty cycle was ten (10) times
No. 2: 6’000 A in duration of 0,1 second.
Testing results are shown in Item 3 & 4
Records are shown in Item 5 & 6
2. Test Set-up
L a s t e l e m e n t - l e f t s i d e
F r I n s MEASURIN
G POINTS
3. Test No. 1: 2’200 A; 620 V; 0,5 seconds
I: 2’200 A DC (according to diagram)
Uout: ~ 690 V DC (according to diagram)
Uc: 6,0 V DC (Gate Control)
Uac: 700 V AC (Supply of thyristor converter)
Ambient temperature: 23 °C
Temperatures on measuring elements:
Measuring Point: Before: After the test:
(1) 26 °C 92 °C
(2) 25 °C 106 °C
(3) 36 °C 130 °C
Measuring points are indicated on Figure 1.
Maximum over temperature rise: 107 °K < 145 °K
Conclusion:
- Temperature rise is below the specified temperature limit for the given loading conditions. - Dissipated energy per cycle: 770 kJ
4. Test No. 2: 6’000 A; 0,1 seconds
I: 6’000 A DC (according to diagram)
Uout: ~ 1’000 V DC (according to diagram)
Uc: 6,0 V DC (Gate Control)
Uac: 1’180 V AC (Supply of thyristor converter)
Ambient temperature: 24 °C
Temperatures on measuring elements:
Measuring Point: Before: After the test:
(1) 25 °C 90 °C
(2) 25 °C 85 °C
(3) 35 °C 120 °C
Measuring points are indicated on Figure 1.
Maximum over temperature rise: 96 °K < 145 °K
Conclusion:
- Temperature rise is below the specified temperature limit for the given loading conditions. - Dissipated energy: 600 kJ
5. Records of the Test No. 1
Duty Cycle 1
Duty Cycle 2
Duty Cycle 3
Duty Cycle 4
Duty Cycle 5
Duty Cycle 6
Duty Cycle 7
Duty Cycle 8
Duty Cycle 9
Duty Cycle 10
6. Records of the Test No. 2