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Electronic release

A technology of electronic tripper and photoelectric switch, which is applied in the direction of electronic switches, instruments, electrical components, etc., can solve the problems of limited number of operations, easy wear and tear of the keyboard, and achieve anti-static interference, simple operation, and low capacity requirements. Effect

Inactive Publication Date: 2013-03-27
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to touch input, the keypad is subject to wear and has a limited number of operations

Method used

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Experimental program
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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the drawings.

[0024] see figure 1 , the electronic trip unit 200 of the present invention includes a control module 210 and a man-machine interface module 220 .

[0025] The control module 210 includes a first micro-processing unit 212 and a sampling unit 211 , an execution unit 213 , and a storage unit 214 respectively communicating with the first micro-processing unit 212 .

[0026] The sampling unit 211 is used to sample the external current or voltage signal and transmit it to the first micro-processing unit 212. Preferably, the sampling unit 211 samples the external current or voltage signal and then undergoes filtering and amplitude adjustment. sent to the first micro-processing unit 212. In this embodiment, the sampling unit 211 is preferably a current transformer. The function of the current transformer is to linearly convert the electrical signal with a large amplitude in the line ...

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Abstract

The invention relates to an electronic release, The electronic release comprises a control module and a human-computer interface module, wherein the control module comprises a first microprocessing unit; the human-computer interface module comprises a second microprocessing unit, a display unit and a photoelectric switch triggering unit; the display unit is communicated with the second microprocessing unit; the second microprocessing unit is communicated with the first microprocessing unit; the photoelectric switch triggering unit is communicated with the second microprocessing unit; when sheltered in the detection range, the photoelectric switch triggering unit is triggered to send an inquiry instruction to the second microprocessing unit; and the second microprocessing unit processes the inquiry instruction, is communicated with the first microprocessing unit to inquire the current state information, and transmits the inquiry result to the display unit for display in real time. The electronic release of the invention has long service life, can avoid the influence of electrostatic interference on the safety of an operator or on the operation of a breaker, and can realize the separate management of the inquiry operation for the state information of the breaker and the operation jurisdiction establishment of a working parameter.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to an electronic trip unit (Electronic TripUnit, ETU) of the circuit breaker. Background technique [0002] The electronic trip unit of the circuit breaker is used for overload protection or short circuit protection, and realizes overload tripping, delayed overload tripping, open circuit instantaneous tripping, delayed short circuit tripping and other actions. [0003] Some prior art discloses electronic trip units with query function: [0004] Chinese patent application No. 01134153.X discloses a multi-channel intelligent controller for power distribution protection, which can be used in conjunction with multiple intelligent protection appliances in a power distribution switch cabinet. It consists of a control circuit, a communication circuit, a keyboard circuit, The drive and display circuit is composed of a control circuit connected with a communication circuit, a drive and display circuit, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/00H02H3/02H03K17/968G06F3/00G06F17/00
Inventor 沈锋赵雄肖大伟张猷琦许林波
Owner SIEMENS AG