GCS Lower Voltage Switchgear

Product overview

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

Basic parameters

Fuctional unit

1. The modulus of drawer layer height is 160mmo, which is divided into 1/2 unit I unit, 3/2 unit, 2 unit, 3 unit and five size series. The rated current of unit circuit is 400A or less.
2. The drawer changes only in height and size, and its width and depth remain unchanged. Drawers with the same functional unit have good interchangeability.
3. Each GCS cabinet can install up to 11 one-unit drawers or 22 1/2-unit drawers.More than one unit drawer uses a multi-functional rear panel.
4. Drawer in and out wires are plug-ins of the same size and chip structure with different number of pieces accordíng to current size.
5.1/2 drawer and cable room are connected by back-plate ZJ-2 adapter.
6. The connection between unit drawer and cable room is classified according to current using the same size rod or tube structure ZJ-1 adapter.
7. The drawer unit is equipped with mechanical interlocking device.

Main electrical components

The selection principle of the main electrical components is based on the reference technology, which can be produced in series and batches in China and meet the requirements of high performance of the device.
1. The main selection of power supply and feeder unit circuit breakers is AH series. It can also choose M series produced by Schneider Company and F series produced by ABB Company. The AH circuit breaker has the characteristics of good performance, compact structure, light weight and strong series. The price is relatively ow, the maintenance and use are convenient, and the performance indicators can meet the requirements of the device.
2. Drawer unit (motor control unit, part feedinq unit) circuit breaker mainly chooses CM1, TG, TM30 series plastic case circuit breaker, and part chooses NZM-100A series produced by MOELLER company. These switches have the characteristics of good performance, compact structure, short arc or no arc, high technical and economic indicators, and can meet the requirements of the device.
3. Q series is selected for disconnector and fuse type disconnector. The series has. high reliability, strong breaking ability and can realize mechanical interlocking.
4. The main selection offuses is NT series.
5. AC contactors are B series and LCI-D series.

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