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油浸式变压器过载保护用高压熔断器
PRNT4-15.5(BAY-0-NET)和PRNT4-40.5油浸式过载保护用高压熔断器适用于交流50HZ，额定电压15.5KV及40.5KV高压户内系统，使用在变压器油内，作为美式电力变压器及其他电力设备过载及小故障短路电流的保护，本产品不允许单独使用，必须与XPNT4-15.5或者XRNT4-40.5油浸式变压器后备保护用高压限流熔断器串联使用，对变压器提供全范围保护。
产品信号 | 额定电压 KV | 熔体而定电流A | 额定断开电流KA |
PRNT4-15.5(BAY-0-NET) | 15.5 | 3 5 6.3 10 16 20 25 31.5 40 50 63 71 80 100 125 140 | 2.5 |
PRNT4-24 | 24 | 3 5 6.3 10 16 20 25 31.5 40 50 63 | 1.6 |
PRNT4-40.5 | 40.5 |
注：PRNT4熔体分单敏和双敏两种 ，订货时需注明熔体是单敏还是双敏，双敏熔体最大而定电流是63A
PRNT4型过载熔断器与XPNT4型后背限流熔断器可参考下表进行选配
变压器容量（KVA） | 12KV电力系统 | 24KV电力系统 | 40.5KV电力系统 |
过载熔断器 | 后备限流熔断器 | 过载熔断器 | 后备限流熔断器 | 过载熔断器 | 后备限流熔断器 |
100 | PRNT4-15.5/10 | XRNT4-15.5/20 | PRNT4-24/6.3 | XRNT4-24/16 | PRNT4-40.5/5 | XRNT4-40.5/10 |
200 | PRNT4-15.5/16 | XRNT4-15.5/31.5 | PRNT4-24/10 | XRNT4-24/20 | PRNT4-40.5/8 | XRNT4-40.5/16 |
315 | PRNT4-15.5/25 | XRNT4-15.5/40 | PRNT4-24/16 | XRNT4-24/32 | PRNT4-40.5/10 | XRNT4-40.5/20 |
400 | PRNT4-15.5/32 | XRNT4-15.5/50 | PRNT4-24/20 | XRNT4-24/40 | PRNT4-40.5/16 | XRNT4-40.5/31.5 |
500 | PRNT4-15.5/40 | XRNT4-15.5/63 | PRNT4-24/25 | XRNT4-24/50 | PRNT4-40.5/20 | XRNT4-40.5/40 |
630 | PRNT4-15.5/50 | XRNT4-15.5/80 | PRNT4-24/31.5 | XRNT4-24/63 | PRNT4-40.5/25 | XRNT4-40.5/50 |
800 | PRNT4-15.5/65 | XRNT4-15.5/100 | PRNT4-24/40 | XRNT4-24/80 | PRNT4-40.5/25 | XRNT4-40.5/50 |
1000 | PRNT4-15.5/80 | XRNT4-15.5/125 | PRNT4-24/50 | XRNT4-24/100 | PRNT4-40.5/31.5 | XRNT4-40.5/63 |
1250 | PRNT4-15.5/100 | XRNT4-15.5/150 | PRNT4-24/65 | XRNT4-24/125 | PRNT4-40.5/31.5 | XRNT4-40.5/63 |
1600 | PRNT4-15.5/140 | XRNT4-15.5/175 | PRNT4-24/80 | XRNT4-24/150 | PRNT4-40.5/40 | XRNT4-40.5/80 |
2000 | | XRNT4-15.5/200 | PRNT4-24/100 | XRNT4-24/200 | PRNT4-40.5/50 | XRNT4-40.5/125 |
2250 | | | PRNT4-24/125 | XRNT4-24/250 | PRNT4-40.5/65 | XRNT4-40.5/150 |
2500 | | | PRNT4-24/140 | XRNT4-24/300 | PRNT4-40.5/80 | XRNT4-40.5/175 |
