XG-12 box type fixed metal enclosed switchgear-High Voltage_Low Voltage_Substation

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Address: 4-2, Building E, Huazhong Enterprise City, 16 North Avenue, Hankou, Wuhan City

Tel: 027-61503288

189 9560 1588

XG-12 box type fixed metal enclosed switchgear

Classification:

Switch cabinet

Electrical products with voltage levels ranging from 3.6kV to 550kV, used for power generation, transmission, distribution, energy conversion, and consumption in the power system to provide on/off, control, or protection functions

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hbctdq@hbctdq.com

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Product Details

Overview

XGN2-12 box type fixed metal enclosed switchgear (hereinafter referred to as switchgear) is designed according to the national standard GB3906, in line with the International Electrotechnical Commission IEC298 standard, with "five" locking function. This product is suitable for the rated voltage of 3.6-12kV three-phase AC 50Hz, rated current 630-3150A three-phase AC single bus, single bus with bypass system, as the acceptance and distribution of electrical energy. It can meet the requirements of various types of power plants, substations and industrial and mining enterprises.

Features

◆ This switch cabinet is a metal enclosed box structure. The cabinet is divided into circuit breaker room, bus room, cable room and relay room. The chambers are separated by steel plates.

◆ The circuit breaker chamber is located in the lower part of the cabinet and is provided with a pressure release channel. The busbar room is at the upper part of the rear of the cabinet, and the busbar is arranged in shape. The cable room is at the rear of the lower part of the cabinet, and the indoor insulator can be provided with a monitoring device. The relay room is in front of the upper part of the cabinet. There is a relay mounting plate in the room, indicating and signal components can be installed on the door, and a secondary small bus can be arranged on the top.

◆ The switch cabinet is double-sided maintenance, and the circuit breaker room and cable room are equipped with lighting lamps. A grounding copper bus bar parallel to the width direction of the cabinet is arranged under the front door.

Main technical parameters

◆ Rated voltage: 3.6/7.2/12(kV)

◆ Rated current: 630-3150(A)

◆ Rated short-circuit breaking current: 16/20/31.5/40(kA)

◆ Rated short-circuit closing current (peak value):40/50/80/100(kA)

◆ Rated short-circuit dynamic stable current (peak value):40/50/80/100(kA)

◆ Rated thermal stability current: 16/20/31.5/40(kA)

◆ Rated thermal stability time: 4S

◆ Protection grade: IP2X

◆ Structure type: single bus section and single bus with bypass

◆ Operation mode: electromagnetic type, spring energy storage type

◆ Exterior dimensions: width × depth × height 1100 × 1200x 2650 (general type)(mm)

◆ Weight: 1000kg

Normal use environmental conditions

Ambient temperature: upper limit 40°C, lower limit -25°C.

◆ Relative humidity: the daily average value is not more than 95%, and the monthly average value is not more than 90%.

The altitude is not more than 1000 meters.

◆ Seismic intensity: ≤ 8 °.

◆ No fire, explosion hazard, serious pollution, chemical corrosion and severe vibration of the place.

internal structure

The switch cabinet has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection, etc. Mainly suitable for power plants, substations, petrochemical, metallurgical steel rolling, light industry and textile, factories and mining enterprises and residential areas, high-rise buildings and other different places. It mainly includes high-voltage isolating switch and grounding switch, high-voltage load switch, high-voltage automatic coincidence and segmenter, high-voltage operating mechanism, high-voltage explosion-proof distribution device and high-voltage switch cabinet.

Correct Selection of Breaker Breaking Capacity
On the primary system diagram, the selected circuit breaker, indicating the circuit breaker model, rated working voltage and rated working current, must also be selected for the breaking capacity of the circuit breaker. With user drawings, the breaking capacity of the circuit breaker is not selected, which makes it difficult for the manufacturer to carry out engineering design. The breaking capacity selection should be based on the system short-circuit parameters. If the manufacturer does not understand the system short-circuit parameters, it is difficult to make the correct choice. There are also some user drawings, regardless of the system short-circuit parameters, blindly select high-break parameters, resulting in unnecessary waste of funds. The correct choice of breaking capacity is very important, not only to ensure safe operation, but also to consider reducing product costs.

Key words:

XG-12 box type fixed metal enclosed switchgear

+86 27-61503288

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hbctdq@hbctdq.com

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+86 189 9560 1588

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