JDW系列户外低压隔离开关是用于额定电压为0.5kV电力系统中，作为变压器低压侧的短路保护与过负荷保护，在一定的条件下可以切合空载变压器,空载线路及额定工作电流作为有电压无负载的情况下接通或隔离电源之用.本隔离开关用绝缘钩棒进行操作。产品主要由触刀、触头、支柱瓷瓶橡胶、底座等件组成每3只为一一组，产品体积小、重量轻，便于高空安装触刀和触头接触采用弹簧锁紧方式，接触良好可靠,在-一般振动下不会自行分闸如维修或更换熔片,只要用钩棒拉开分闸部分将触刀摘下在地面更换熔片再用钩棒将触刀挂上合闸即可。

 

      The JDW sires outdoor low oltage disconnect switch is the low vollage switch equipment of single phase AC50HZ. The products is used forpower transtomer oulgoing, sub-feeder in the network, it is the newest product of fuse-cutout. It can open and close in over-head circuit andpower transformer under the special condition, the disconnect switch can low down the power-of area, ensure the security of maintenance man,improve the reliability ol power supply.

 

使用条件Normal Service Conditions.

 

a.海拔高度不超过1000m。

 

b.周围空温度:上限一般地区+40*C.下限一般地区-30 *C ,高寒地区-40 °C.c.风压不超过700pa. (相当于风速34ms)d.地震烈度不超过8度e.无频繁剧烈震动场所.

 

t. 普通型安装场所应无严重影响隔离开关绝缘和导电能力的气体、蒸气。化学性沉积、盐雾.灰尘及其它爆炸性、侵蚀性物质。防污型适用于重污秽地区 ,但不应有引起火灾及爆炸物质。a. The aiude does not exceed 1000m.

 

      。The ambient air temperalure: Maximum +40'C; Minimum; -30C,Paramos-40C.. The wind pressure does not exceed 700Pa. (corresponding to 34m/s wind speed).d. The earthquake intensity does not exceed 8 degrees.

 

      . The working situation hasn't frequent violent vibration.

 

1. The istallation sitle of ordinary type isolator should be kept away from gas, smoke chemical deposition, sll-spray fog, dust and oher explosiveand corrosive maters that affect seriously insulation and concconduction capability of the isolator.

 

G. Pllution-proot type isolator is applying 10 severe fithy conduction area; however, it shouldn't be any explosive matters and matters causing fire.

 

技术参数Technical Specification

 

2号

 

Typo

 

      额定电流

 

      Ratodcurrent

 

4S热稳定电流4S Heatsteady

 

动稳定电流Shock voltage

 

      冲击电流(KV)

 

      impuise wthstand vlage相对地相对地  断口间KVTO earth

 

      "solatingdistance

 

怕网地To earth

 

3150

 

200A400A600A600A800A1000A1250A

 

      电压

 

      1250JDW2-0.5  1250

 

      12501250

 

      1250  315012501250125012501250125012501250

 

注:如需要将瓷瓶支柱绝缘子换成硅橡胶支柱绝緣子,请在型号前加EH,如JDW10.5表示产品使用的是瓷瓶支柱, HJDW1-0.5则表示产品使用的是硅橡胶支柱。Note: It you need slicon rubber insulator instead porcelain post insulator, please add H belore type, tor example, HJDW1-0.5 instead JDW1-0.5.

 

      工频耐压(KV)

 

      Power-frequeny wihstand ollage

 

      断口间(KV)Acros.inedistance