GCS Low Voltage Switchgear

description

GCS Low-voltage withdrawable switchgear (hereinafter referred to as the device) are two joint design group design developed in line with national conditions, in accordance with high technical performance requirements of the industry department, the majority of electricity users and design units, able to adapt to the development of the electricity market needs and introduce products to compete with the existing low-voltage switch cabinet, the device has now been widely electricity users to choose.

Outline

Equipment for power plants, petroleum, chemical, metallurgy, textile, high-rise construction industry distribution system. High degree of automation in large power plants, petrochemical systems, computer interface requirements and place, as a three-phase AC frequency of 50 (60) Hz, rated working voltage of 380V (400) V, (600) V, rated current of 4000A and below the hair, power supply system, power distribution, motor centralized control, low-voltage power distribution equipment used for reactive power compensation.

Design of the device meets the following criteria IEC439-1 "Low-voltage switchgear and control equipment" GB7251 "Low-voltage switchgear" ZBK36001 "Low-voltage withdrawable switchgear"

Conditions of Use

1 ambient air temperature does not exceed + 40 ° C, not lower than -5 ° C. 24-hour average temperature is not higher than + 35 ° C. More than is required according to the actual situation derating operation. Within two to use, place of use to the altitude must not exceed 2000m. 3 ambient air relative humidity at the highest temperature does not exceed + 50% 40 ° C when, at a lower temperature allows a greater relative humidity: as + 20 ° C is 90%, should take into account changes in temperature may occasionally produce condensation effects. 4 when the device is installed and the vertical gradient of not more than 5 °, and the entire group of cabinet column relatively flat (in line with GBJ232-82 standard). 5 device should be installed in the absence of severe vibration and shock, and not enough to make electrical components undue corrosion sites. 6 users have special requirements can be resolved through consultation with our company.

Structural features

1 means the main frame using 8MF steel, architecture is part of the welding assembly and two structural forms. Each installation modulus E = 20 mm hole on the main frame. Each room features 2 means strictly separated from the compartment is divided into functional unit room, bus room, cable room, each functional unit is relatively independent. 3 means the cabinet size series (unit: mm) wide and 400 high 2200 * 600 * 800 * 800 * 1000 * 1000 deep 800 * 600 * 800 * 1000 * 1000 * 600 * 800 * 10004 features a drawer-storey unit. modulus 160㎜ (see Figure 9-10). Divided into 2 units, 1 unit, 1.5 unit, Unit 2, Unit 3, five size series. Unit circuit rated current 400A and below. B. drawer change only the change in the height dimension, the width and depth dimensions unchanged. Drawer unit having the same function as good interchangeability. c. Each MCC cabinet can be installed up to 11 units of a drawer or 22 1/2 unit drawer. One uses a versatile drawer unit above the rear plate d. According to the current size of the drawer into the outlet connector uses the same specifications sheet structure of the different number of pieces. e.1 / 2 drawer unit and the cable compartment using the adapter backplane structure type ZJ-2 adapter. f. drawer unit and the cable adapter chamber by the current sub-file the same size rod or tubular structure ZJ-1 type adapter. g. drawer panel has open, close, testing, and other obvious signs extraction position h. drawer unit with mechanical interlocking device. 5 feeder cabinets and motor control cabinet has dedicated cable compartment, functional unit room and indoor cable through a cable adapter or transfer copper to achieve, both to improve the reliability of the cable, but also greatly facilitate the users cable installation and maintenance. There are two cable compartment width dimension (240㎜ and 440㎜) are available, depending on the number of cables, installation and maintenance section and user convenience and requirements. Functional unit 6 auxiliary contact means a logarithmic unit and above 32 pairs, 1/2 units of 20 pairs and can meet the needs of automation users and computer interface. 7 Taking into account the use of ordinary dry-type transformers and oil immersed transformer security of the economy, both devices can be easily and dry-type transformer consisting of a set of columns to be easily connected with the oil immersed transformer low voltage bus. 8 in the drawer as the mainstay, has withdrawn and fixed, can be mixed combination, arbitrary choice.

9 devices connected three-phase five-wire and three-phase four-wire system design, the design department and the user can easily choose PE + N or PEN way. 10 cabinet protection rating of IP30, IP40, can be selected according to user needs.