JE-SIS-12 Series Compact Solid Insulated Ring Main Unit - High/Low Voltage Switchgear - Zhejiang Dingzhi Electric power Technology Co., LTD.
JE-SIS-12 Series Compact Solid Insulated Ring Main Unit

·Small and compact in size·Easy installation·Stable performance·Maintenance-free

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The JE-SIS-12 series is a new generation of compact solid insulated ring main unit, which has a high level of operational safety and is used as the core unit of distribution networks. The device is mainly composed of modular components such as circuit breakers with three position isolation switch bodies, load switches with three position isolation switch bodies, fuse tubes, insulated busbars, and cable joints. All high-voltage live parts are cast with high-quality insulation materials. Organically combining the vacuum arc extinguishing chamber, main electrical circuit, insulation support, etc. into a whole, achieving a fully insulated, fully sealed, and maintenance free structure. At the same time, it greatly reduces the insulation gap between switches, and each circuit observes the position and status of the grounding switch through an independent observation window, ensuring the safety of operation, maintenance, and repair.


The vacuum circuit breaker and three position isolation switch adopt the latest designed combined spring operating mechanism to ensure the reliability of the circuit breaker (load switch) and three position isolation switch operation.


The JE-SIS-12 series compact solid insulated ring main unit can be equipped with an intelligent online monitoring system, providing strong support for the normal operation of the switchgear and the entire distribution line.

额定电压 Rated Voltage

单位 Unit

参数 Parameter

常规 convention



额定电压 rated voltage

KV

12

额定电流 Rated current

A

630

额定频率 Rated frequency

Hz

50

工频耐压 power-frequency withstand voltage

kV/min

42/48

雷电冲击电压 lightning impulse voltage

KV

75/85

燃弧待续时间 Arc ignition waiting time

S

20kA/0.5s

柜体防护等级 Cabinet protection level


IP3X

操作电源电压 Operating power supply voltage

V

Dc:24,48,110,220 AC:110,220




母线系统 busbar system



额定电流 Rated current

A

630

额定短时耐受电流 Rated short-time withstand current

kA/s

20/4

额定峰值耐受电流 Rated peak withstand current

kA

50




负荷开关单元(C) Load switch unit (C)



额定电流 Rated current

A

630

额定短路关合电流 Rated short-circuit closing current

kA

50

额定短时耐受电流 Rated short-time withstand current

kA/s

20/4

负荷开关机械寿命 Mechanical lifespan of load switch

次

M21000

三工位隔离开关机械寿命 Mechanical lifespan of three position isolation switch

次

M13000

负荷开关电气寿命 Electrical lifespan of load switch

次

E3




断路器单元(V) Circuit breaker unit (V)



额定电流 Rated current

A

630

额定短路开断电流 Rated short circuit breaking current

kA

20

额定短路关合电流 Rated short-circuit closing current

kA

50

额定短时耐受电流 Rated short-time withstand current

kAs

20/4

断路器机械寿命 Mechanical lifespan of circuit breaker

次

M210000

三工位隔离开关机械寿命 Mechanical lifespan of three position isolation switch

次

M13000

断路器电气寿命 Electrical lifespan of circuit breaker

次

E2

额定操作顺序 Rated operating sequence


0-0.3s-C0-180s-C0




负荷开关-熔断器组合电器单元(F) Load switch fuse combination unit (F)



额定电流 Rated current

A

100

额定短路开断电流 Rated short circuit breaking current

kA

31.5

额定短路关合电流 Rated short-circuit closing current

kA

80

额定交接电流 Rated handover current

A

3150

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