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A mobile generator leakage protection device

A leakage protection device and generator technology, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as inability to use grounding protection, inability to use zero-connection protection, etc., to achieve rapid and fast response, reliable leakage monitoring and protection, The effect of eliminating dead ends

Active Publication Date: 2016-12-21
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of equipment can neither use grounding protection nor zero connection protection. How to solve its leakage protection? That's exactly what we're trying to solve

Method used

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  • A mobile generator leakage protection device
  • A mobile generator leakage protection device
  • A mobile generator leakage protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Embodiment. This example is an experimental prototype, is to try out in the 120PFX single-phase generator set that North China Diesel Engine Works produces, and its composition is as follows Figure 1-Figure 3 shown.

[0023] Connect the Z1 variable impedance circuit and the Z2 variable impedance circuit in series between the voltage output terminal equipotential body A and the equipotential body N of the single-phase generator and its control circuit, and connect the leakage signal between the Z1 variable impedance circuit and the Z2 variable impedance circuit The input of the collection and execution circuit, and the output of the leakage signal collection and execution circuit is connected to the shell of the single-phase power generation equipment. The potential of the contact 0 connected to the leakage signal acquisition and execution circuit between the two variable impedance circuits is zero or close to zero.

[0024] Electrical principles such as figure 2 sho...

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Abstract

The invention is a leakage protection device for a single-phase mobile generator, which relates to the technical field of measuring electric variables and emergency protection devices. It includes a single-phase generator and its control circuit, a variable impedance circuit leakage signal collection and execution circuit, and a leakage signal collection and execution circuit. Connect the Z variable impedance circuit and the Z2 variable impedance circuit in series between the voltage output terminal equipotential body A and the equipotential body N of the single-phase generator and its control circuit, and connect the leakage signal between the Z variable impedance circuit and the Z2 variable impedance circuit The input of the collection and execution circuit, and the output of the leakage signal collection and execution circuit is connected to the shell of the single-phase power generation equipment. The invention can realize leakage monitoring of power generation equipment without external ground wire and neutral wire, and is safe, reliable and quick in response.

Description

technical field [0001] The invention is a leakage protection device for a single-phase mobile generator, which relates to the technical field of measuring electric variables and emergency protection devices. Background technique [0002] According to the requirements of power supply regulations, the exposed metal parts of electrical equipment must be reliably grounded to prevent machine damage and personal injury accidents caused by equipment leakage. This is the most basic leakage protection measure for electrical equipment to use electricity safely. [0003] Leakage protection must have a special metal wire to realize small resistance contact between electrical equipment and the earth, or use a special metal wire to connect electrical equipment with the zero potential point of the power supply system, so leakage protection is also called grounding protection or zero protection. [0004] In the field construction of oil and gas pipelines, three-phase diesel power generati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/06
Inventor 王林章廖宇平孙福全龚汉波赵爽武淑倩
Owner BC P INC CHINA NAT PETROLEUM CORP