CN204615171U

CN204615171U - A kind of intermediate switchgear cabinet reducing secondary wiring use amount

Info

Publication number: CN204615171U
Application number: CN201520253016.3U
Authority: CN
Inventors: 朱国基
Original assignee: Guangzhou Baiyun Electric Equipment Co Ltd
Current assignee: Guangzhou Baiyun Electric Equipment Co Ltd
Priority date: 2015-04-23
Filing date: 2015-04-23
Publication date: 2015-09-02
Anticipated expiration: 2025-04-23

Abstract

The utility model provides a kind of intermediate switchgear cabinet reducing secondary wiring use amount, include secondary wire slot, and be located at bus and control room, the breaker chamber in intermediate layer and the cable vault of lower floor on switch cubicle upper strata, the secondary wiring of drawing from control room is connected with current transformer after secondary wire slot, it is characterized in that: described secondary wire slot is located at the breaker chamber of switch cubicle.Secondary wire slot is located at the breaker chamber in the middle part of switch cubicle by the utility model, the use amount of secondary wiring can be effectively reduced, also facilitate workman's wiring simultaneously, secondary wire slot is in overhead higher position and can keeps away from moisture and cause the problem such as ageing of insulation, short circuit, the effective guarantee safety of equipment.

Description

A kind of intermediate switchgear cabinet reducing secondary wiring use amount

Technical field

The utility model relates to a kind of intermediate switchgear cabinet reducing secondary wiring use amount.

Background technology

Intermediate switchgear cabinet, full name is metal armouring middle disposed withdrawn type switchgear, its point of three-decker, upper strata is bus and control room (mutually isolated), intermediate layer is breaker chamber, and lower floor is cable vault, belongs to high voltage distribution installation, maximum operating voltage 3.6/7.2/12/24kV is the indoor complete power distribution equipment of three-phase alternating current 50Hz single busbar system or sectionalized single busbar connection system.For accepting and distribute the network power of 3.6-12kV, and Control protection, monitoring and measuring are carried out to power circuit.Intermediate switchgear cabinet is mainly used in power plant, the power transmission of medium and small generator, powered, the power transmission of electric power system secondary substation, the distribution of industrial and mineral enterprises and institutions, and the starting etc. of Large-scale High-Pressure motor.

The intermediate switchgear cabinet of current production, current transformer is all mounted in the breaker chamber at middle part, its contact is more, and secondary wire slot is the cable vault being arranged on cabinet bottom, therefore the secondary wiring of current transformer is drawn from control room, then could be connected with it in the middle part of upper wardrobe body through secondary wire slot again.This design brings a lot of inconvenience, wherein has three shortcomings: 1, secondary wiring use amount is too much; 2, workman's wiring is inconvenient, needs to squat down, and increases labor strength; 3, because secondary wiring is near ground, if when field of employment humidity is higher, easily cause wire to make moist, thus reduce conductor resistance, finally may cause ageing of insulation, short circuit, greatly endanger the device security of intermediate switchgear cabinet.

Utility model content

Technical problem to be solved in the utility model, is just to provide a kind of intermediate switchgear cabinet reducing secondary wiring use amount, effectively can reduce the use amount of secondary wiring, facilitates workman's wiring and avoids secondary wiring to make moist.

Solve the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of intermediate switchgear cabinet reducing secondary wiring use amount, include secondary wire slot, and be located at bus and control room, the breaker chamber in intermediate layer and the cable vault of lower floor on switch cubicle upper strata, the secondary wiring of drawing from control room is connected with current transformer after secondary wire slot, it is characterized in that: described secondary wire slot is located at the breaker chamber of switch cubicle.

Compared with prior art, the utility model instrument has the following advantages:

Secondary wire slot is located at the breaker chamber in the middle part of switch cubicle by the utility model, the use amount of secondary wiring can be effectively reduced, also facilitate workman's wiring simultaneously, secondary wire slot is in overhead higher position and can keeps away from moisture and cause the problem such as ageing of insulation, short circuit, the effective guarantee safety of equipment.

Accompanying drawing explanation

Fig. 1 is the intermediate switchgear cabinet schematic diagram of prior art;

Fig. 2 is schematic diagram of the present utility model.

In figure: 1-control room, 2-secondary wiring, 3-breaker chamber, 4-secondary wire slot, 5-current transformer.

Embodiment

Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.

Fig. 1 is the intermediate switchgear cabinet schematic diagram of prior art; As shown in Figure 2, Novel mid-mounted formula switch cubicle embodiment of the present utility model, include secondary wire slot 4, and be located at bus and control room 1, the breaker chamber 3 in intermediate layer and the cable vault of lower floor on switch cubicle upper strata, the secondary wiring 2 of drawing from control room 1 is connected with current transformer 5 after secondary wire slot 4, and secondary wire slot is located in the breaker chamber 3 of switch cubicle.

In the present embodiment, secondary wire slot is located at breaker chamber, the wiring Distance Shortened of current transformer and control room can be made on the one hand, decrease the use of secondary wiring; Another aspect secondary wire slot is in overhead higher position and can keeps away from moisture, and also helps and facilitates wiring.

Claims

1. one kind can be reduced the intermediate switchgear cabinet of secondary wiring use amount, include secondary wire slot, and be located at bus and control room, the breaker chamber in intermediate layer and the cable vault of lower floor on switch cubicle upper strata, the secondary wiring of drawing from control room is connected with current transformer after secondary wire slot, it is characterized in that: described secondary wire slot is located at the breaker chamber of switch cubicle.