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| HVDC DISC INSULATORS-500kV |
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| Sl.no |
Product Identification |
CB-12 |
CB-16 |
CB-05 |
| 1 |
Porcelain Disc Diameter |
mm |
280 |
330 |
330 |
| 2 |
Unit Spacing |
mm |
146 |
170 |
170 |
| 3 |
Ball & Socket Coupling |
mm |
16 /20 |
20 |
20/24 |
| 4 |
Creepage Distance |
mm |
445 |
540 |
540 |
| 5 |
Protected Creepage Distance (90o) |
mm |
300 |
350 |
350 |
| 6 |
Electro-Mechanical Min. Failing Load |
kN |
70-120 |
160 |
210 |
| 7 |
Pf-Dry Flashover Voltage |
kV |
±155 |
±170 |
±170 |
| 8 |
Pf-Dry Withstand Voltage |
kV |
±145 |
±150 |
±150 |
| 9 |
Pf-Wet Flashover Voltage |
kV |
±65 |
±70 |
±70 |
| 10 |
Pf-Wet Wtihstand Voltage |
kV |
±50 |
±65 |
±65 |
| 11 |
Impulse Flashover Voltage |
kVp |
140 |
150 |
150 |
| 12 |
Impulse Withstand Voltage |
kVp |
130 |
140 |
140 |
| 13 |
Power Frequency puncture Voltage |
kV |
120
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125 |
130 |
| 14 |
Weight of Unit (Approx) |
kg |
7.9/8.2
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12.0 |
120.8/13.0 |
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Ball and Socket parts refer to IS:2486 (Part-II) or BS-3288:Part-3 or IEC-60120. Standard Testing Specification:BSEN-60383-2 or IEC-61325 & 60383
Flashover & withstand Voltages are subject to a variation of 5% for DC Dry , 10% for DC Wet and 8% for Impulse characteristics. |
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