烏魯木齊伊麗特孜國際貿(mào)易有限公司

4.4. Negative switch cabinet РУОШ-600А/Л-УХЛ4

Manufacturer: Zhejiang Changchun Electrical Appliance Co., Ltd

The function of the negative switch cabinet is that the output feeder of the catenary is connected to the negative bus through the isolating switch. In a cabinet, multiple negative bus cables can be placed according to user requirements.

The isolating switch has a motor that can be manually operated.

The grounding is separate or combined, and is provided with a safety interlock.

Applicable standards: GB_T 25890.1-2010 / IEC61992-1: 2006

Rated power supply voltage of the circuit:

Control, automation and protection: = 24V, =220V or ~220V, 50Hz,

Alarm: =24V

Lighting: =24V

Cooling: Natural ventilation.

The main technical parameters of switchgear isolator HD18-20/18:

Rated voltage: 1800V

Rated current: 2000A

Power frequency withstand voltage: 5.5kV 1min

Short-time withstand current capability:

50kA/71kA(T=250ms)

Mechanical life: 20000 times, 120 times/hour

Basic technical parameters of line and grounding isolation switch HD18-10/18:

Rated voltage: 1800V

Rated current: 1000A

Power frequency withstand voltage: 5.5kV 1min

Short-time withstand current capability:

50kA/71kA(T=250ms)

Mechanical life: 20000 times, 120 times/hour

-Rated power supply voltage of the circuit:

-Control, automation and protection: = 220V or ~220V, 50Hz,

-Alarm: ~36V, 50Hz,

-Lighting: ~220V, 50Hz.

-Cooling: Natural ventilation.