Shunt release capable of detecting abnormal power state

A shunt release and abnormal state technology, which is applied in the direction of switches actuated by overcurrent and other abnormal electrical conditions, switches actuated by overvoltage, electrical components, etc. It is difficult to meet people's needs and other issues to achieve the effect of meeting security needs

Inactive Publication Date: 2009-09-09
HUBEI SHENGJIA ELECTRIC EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existing overcurrent protection tripper still has defects: at first the staff must arrive at the scene to cut off the power line where the shunt tripper is located; It only works when the current between the phase lines is unbalanced
However, when encountering other abnormal situations, it is necessary to disconnect the

Method used

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  • Shunt release capable of detecting abnormal power state
  • Shunt release capable of detecting abnormal power state
  • Shunt release capable of detecting abnormal power state

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Experimental program
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Effect test

Embodiment Construction

[0037] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0038] see figure 1 As shown, it is a mechanical diagram of a shunt release capable of detecting abnormal power states of the present invention, which includes a casing 1, and an electromagnet 2 composed of a tripping coil 21, an armature 22, etc. is arranged in the casing 1, With the implementation, control circuit 3, current transformer 4 and power terminal 5, the signal input terminal 6 can be connected to external equipment control signals. The current transformer 4 is set on the phase line L and the neutral line N, and is electrically connected with the control circuit 3, the tripping coil 21, the power terminal 5 and the signal input terminal 6, and the signal input terminal 6 6 It is used to connect with external equipment that generates power-off protection signals. When an external remote contro...

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PUM

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Abstract

The invention discloses a shunt release capable of detecting abnormal power state, which comprises a shell, and a power-off protection unit and a control circuit positioned in the shell, wherein the power-off protection unit is an electromagnet executing the release action; the control circuit comprises a power line sampling unit, a power supply unit and a state processing unit; the power line sampling unit is used for acquiring semaphore representing the power state of the release from the power line on which the release is arranged; the power supply unit acquires a real-time voltage from the power line and converts the real-time voltage to a stable voltage for supplying power; and the state processing unit sets a reference voltage, and generates a trigger signal to the power-off protection unit when the voltage of the semaphore is higher than the reference voltage, and the power-off protection unit generates the release action.

Description

technical field [0001] The present invention relates to an internal circuit of a release, in particular to a release applied to the release, according to the state of the release set on the power line, to take corresponding protection actions in an abnormal state circuit structure. Background technique [0002] For the power department, the switch and circuit breaker equipment is an indispensable equipment for electricity safety and line switching. The existing shunt release equipped with the circuit breaker, such as the leakage protection switch, is also called the air switch. The shunt release generally includes a casing, and a tripping mechanism composed of a coil and an armature, a mutual induction coil, a control circuit, and a terminal are arranged in the casing. The mutual induction coil is set on the phase line and the neutral line. When the current on the phase line and the neutral line changes, the mutual induction coil will generate a current, which is input into...

Claims

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Application Information

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IPC IPC(8): H01H83/22H01H83/10H01H71/24H02H3/32
Inventor 万家盛汪志强
Owner HUBEI SHENGJIA ELECTRIC EQUIP
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