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High-voltage switch cabinet

A high-voltage switch cabinet and cabinet technology, applied in electrical switches, high-voltage air circuit breakers, air switch parts and other directions, can solve problems such as difficult implementation and complex structure, and achieve simple structure, forward and reverse control, and easy operation. Effect

Pending Publication Date: 2018-11-06
HENAN SENYUAN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-voltage switchgear to solve the problem that the existing motor forward and reverse control device has a complex structure and is not easy to implement

Method used

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] The existing motor forward and reverse control is generally applied to weak current control, and the switching of the circuit breaker and other switches is controlled by the circuit, so as to realize the positive and negative rotation of the motor. It is difficult to apply, and it also has high requirements for hardware structure and electrical design. Switching realizes the change of the three-phase power supply, and realizes the forward and reverse control of the motor. Its structure is simple and easy to operate. According to different transformations of the structure of the high-voltage switchgear, the present invention can have various implementation modes, and a specific example applied to a fan is given below.

[0017] Such as figure 1 As shown in the figure, 1 is the manual operation mechanism, 2 is the current transformer, 3 is the pillar, 5...

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Abstract

The invention relates to the field of high voltage control, and specifically relates to a high-voltage switch cabinet. A three-phase disconnecting link comprising two three-phase moving contacts is arranged in a control cabinet; three phases of a three-phase input terminal are connected with the two moving contacts through different connection modes; and a motor is controlled to rotate forwardly when one three-phase moving contact is closed, and the motor is controlled to rotate reversely when the other three-phase moving contact is closed, so that the forward and reverse rotation of the motoris realized. The high-voltage switch cabinet provided by the invention is simple in structure and easy to operate, so that the motor can be smoothly switched between forward rotation and reverse rotation, and the forward and reverse rotation control of the motor is effectively realized.

Description

technical field [0001] The invention relates to the field of high-voltage control, in particular to a high-voltage switch cabinet. Background technique [0002] In the field of high-voltage electrical control, switchgear, as an important component, has been used more and more widely. For example, KYN28A-12 armored removable AC metal-enclosed switchgear is widely used in large power plants, substations, and industrial and mining enterprises. , in the AC grid with a rated voltage of 3.6 ~ 12KV and a rated frequency of 50HZ, it is used for receiving and distributing electric energy. Because of its reliable performance and convenient use, it has also been widely used in user engineering these years. However, with the development, in order to meet various requirements in practice, new requirements have been put forward for the structure of the switchgear. For example, when designing the existing high-voltage switchgear, generally only the forward rotation of the motor is conside...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/30H01H1/58H01H31/02
CPCH02B1/30H01H1/58H01H31/023H01H31/026
Inventor 朱世杰崔晓科丁富帅宋俊丽
Owner HENAN SENYUAN ELECTRIC CO LTD
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