GCS Low Voltage Switchgear

Product Description

GCS equipment is suitable for power plant, petroleum, chemical, metallurgy, textile, high-rise building and other industries of the power distribution system. In large power plants, petrochemical systems and other places with high degree of automation and requiring computer interface, as a three-phase AC frequency of 50(60)H rated working voltage 380V(400V), (660V), A low-voltage complete set of power distribution devices for power distribution, motor centralized control and reactive power compensation in power supply systems with rated current of 4000A and below.

Model and meaning

Performance index

The design of the device meets the following criteria

IEC439-1 Low-voltage switchgear and control equipment

GB 7251 Low voltage switchgear

ZBK 36001 Low voltage withdrawable switchgear set

Basic parameter

Functional unit

The modulus of the pumping layer is 160mm, which is divided into five size series of 1/2 unit, 1 unit, 3/2 unit, 2 unit and 3 unit. Unit circuit rated current 400A and below.

The drawer changes only in the height size, and its width and depth dimensions remain unchanged. The drawers of the same functional unit have good interchangeability.

Each MCC cabinet can accommodate up to 11 one-unit drawers or 22 1/2 unit drawers. One of the drawers above the unit adopts a multi-functional rear panel.

Drawer inlet and outlet lines according to the size of the current using different number of pieces of the same specification chip structure plug-in.

The switch between the 1/2 unit drawer and the cable room adopts the ZJ-2 type switch of the back plate structure.

The conversion between the unit drawer and the cable room adopts the same size rod or tube type ZJ-1 adapter according to the current classification.

The drawer unit has a mechanical interlocking device.

Major electrical component

The selection principle of the main electrical components is based on the introduction of technology, the domestic can be a series of mass production, but also to meet the requirements of high performance of the device. The power supply and feeder unit circuit breaker main choose AH series, can also choose other more advanced performance of the M series produced by Schneider company, ABB company produced F series.

AH circuit breaker has the characteristics of good performance, compact structure, light weight and strong series. The price is relatively low, the maintenance is easy to use, and the performance indicators can meet the requirements of the device.

The drawer unit (motor control unit, part of the feed unit) circuit breakers mainly choose CM1, TG, TM30 series of molded case circuit breakers, and some of them choose NZM-100A series produced by MOELLER company. These switches have the characteristics of good performance, compact structure, short arc or no arc and high technical and economic index, which can meet the requirements of this device.

Isolation switch and fuse type isolation switch choose Q series. The series has high reliability, strong breaking ability and can realize mechanical interlocking.

Fuse main NT series.

Ac contactor selected B series, LC1-D series.