Standard:
● DIN 47636-7-1990 Power cable with extension cones, separable, with Um below 35kV Sub-connector device size· ● Exposed Semiconductor Sheaths for High - Voltage Cable Fittings and Detachable Insulated Connectors; IEEE. ● IEC60502 Extruded insulated power cables with rated voltages from 1 kV (Um= 1.2 kV) to 30 kV (Um= 35 kV) and annex; ● IEC61442 Test methods for accessories for power cables with rated voltages from 6kV (Um= 7.2kV) to 30kV (Um= 35kV); ● GB 12706-2002 Extruded insulated power cables with rated voltages from 1 kV(U m= 1.2 kV) to 35 kV (Um= 40.5 kV)And its annexes; ● GB311.1-1997 high-voltage power transmission and distribution equipment with the insulation; ● GB I T41.9.1999 high-voltage casing technical conditions; ● GB11032.2010 AC non-gap metal oxide surge arresters; ● DIN 47636-7-1990 Power cables with extended cones, separable, with Um below 35kV Sub - connector device size.Introduction:
25kV 250A Apparatus Bushing provide the interface for the 200A Cable connector and mostly used on the oil-insulated (R-temp, hydrocarbon, or silicone) apparatus, including switchgear, transformers, and capacitors. The Apparatus Bushing are molded using high quality Epoxy Rubber, meet the requirement of standard EN50180/EN50181 DI N4 7636/HN52-S-61Continuous voltage rating:
| Item | 15kV | 25kV | 35kV |
| Continuous operating voltage | 8.7kV/15kV | 12kV/20kV 18/20kV | 26kV/35kV |
| AC withstand voltage | 45kV/1min | 55kV/5min | 117kV/5min |
| DC withstand voltage | 53kV/15mins | 78kV/15mins | 104kV/15mins |
| 1.5/50 μ s Im pulse with stand voltage | 95kV | 125kV | 215kV |
| Partial discharge voltage(＜10PC) | 13kV | 20kV | 45kV |
Current rating:
| Item | 250AMP | 600AMP |
| Heat stable current | 16kA 1S | 30kA 2S |
| Peak withstand current | 40kA | 105kA |
Order information:
| Description | Reference No. | Length(A) | Length(B) |
| 24kV 250A Apparatus Bushing(standard) | AH TGZ-24/250 | 224 | 108 |
| 24kV 250A Apparatus Bushing(short) | AH TGZ-24/250S | 189 | 73 |
| 24kV 250A Apparatus Bushing(long) | AH TGZ-24/250L | 284 | 168 |
