High voltage switchgear of sensing technique

A high-voltage switch and sensing technology technology, applied in substation/switch layout details, supporting insulators, electrical components, etc., can solve the problems of small size, complex structure and large size of switchgear, and achieve the reduction of shape and volume, measurement The effect of high accuracy and wide measurement range

Inactive Publication Date: 2005-06-01
徐鹏飞
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of large volume and complex structure in the prior art, the present invention provides a new high-voltage switchgear with sensing technology, which uses a post insulator type current sensor as the detection device of the switchgear, and sets the In the essential post insulator of the switchgear, the volume of the switchgear is reduced, and the structure of the switchgear is simplified and updated

Method used

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  • High voltage switchgear of sensing technique
  • High voltage switchgear of sensing technique
  • High voltage switchgear of sensing technique

Examples

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Effect test

Embodiment 1

[0027] refer to figure 1 , 3.6-40.5KV fixed high-voltage switchgear (ring network cabinet) in the prior art, including cabinet body 1, main busbar room 2, circuit breaker room 3, relay and instrument room 4, cable room 5, and current mutual inductance Device 6, main busbar 7 and post insulators supporting it. The specific size of the cabinet: height (a) × width × depth (b) = 2200 × 750 × 700mm. The main busbar 7 is fixed on the cabinet body through post insulators. The detection device is a current transformer 6. The current transformer 6 is fixed on the cabinet body through a bracket to provide a current signal source for system protection and measurement. The current transformer is connected to the busbar. 8 with outgoing cables. Since the high-voltage switchgear has strict requirements on the air gap and creepage distance between the devices, a certain distance must be kept between each device in the switchgear, so it will take up a lot of space, and one more device will ...

Embodiment 2

[0030] refer to image 3 , the prior art removable high-voltage switchgear (center cabinet), including cabinet 1, main bus room 2, circuit breaker room 3, relay and instrument room 4, cable room 5, also includes current transformer 6 and main Busbar 7 and post insulators supporting it. The specific size of the cabinet body: height (a) × width × depth (b) = 2200 × 800 × 1650mm, the main busbar 7 is fixed on the cabinet body through post insulators, and a detection device is installed on the busbar, and the detection device is a current The transformer 6 provides current signals for the protection and measurement of the system. The current transformer 6 is installed on the cabinet and connects the busbar 8 and the outgoing cable of the cable room 5 . A switchgear generally has 3 sets of current transformers, sometimes even 6 sets, which takes up a lot of space for the switchgear. In addition, the air gap and creepage distance between the equipment in the high-voltage switchgear...

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Abstract

The present invention is one kind of high voltage switch equipment with sensor technology adopted. The high voltage switch equipment includes cabinet, main bus chamber, breaker chamber, relay and meter chamber, cable chamber, detector and insulator column supporting bus inside the cabinet. The detector includes current sensor in the insulator column with leads connected directly with automatic device, microcomputerized protector and measuring meters. The present invention has small size and simple structure.

Description

(1) Technical field [0001] The invention relates to a high-voltage switchgear, in particular to a sensing technology high-voltage switchgear. (2) Background technology [0002] Generally, high-voltage switchgear is an important power equipment that is widely used in industrial and mining enterprises, and even the entire primary, secondary, and tertiary industries, and is required for large-scale and wide-ranging power supply and consumption. In the 3.6-40.5KV power system, it is used for the control, protection, switching and measurement of electric energy. The high-voltage switchgear has two basic structures: fixed switchgear and removable switchgear. The primary components of the high-voltage switchgear basically include: circuit breakers (fuse), transformers, busbars, and post insulators supporting the busbars. The fixed switchgear is generally equipped with an isolating switch in the cabinet, and the removable switchgear is not equipped with an isolating switch. The ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14H02B1/00
Inventor 徐鹏飞
Owner 徐鹏飞
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