Uninterruptible power supply type leakage test comprehensive protection system
A power supply system, leakage test technology, applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, electrical components, etc., can solve the problems of high labor intensity, long time, unsafe, etc. simple effect
Active Publication Date: 2013-03-20
SHANGHAI YI KUN AUTOMATION EQUIP
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Problems solved by technology
This method of tripping experiment is labor-intensive and takes a long time, and there are unsafe factors
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[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific diagrams.
[0038] refer to figure 1 , figure 2, Uninterrupted power supply leakage test comprehensive protection system, including a protection device host 4, a power supply system 1, the power supply system 1 of the present invention uses a three-phase power supply. The power supply system 1 is connected to an electric load 2 through a three-phase power line, the protection device host 4 is connected to the control terminal of the power supply system 1, and the power supply system 1 is connected to a switching power supply module 3 through a transformer T1 and a transformer T3, and the power provided by the power supply system 1 is in After the voltage transformation of the transformer, it becomes the electric energy that the protection device host 4 c...
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The invention relates to the technical field of coal mine safety, in particular to a circuit protecting system. An uninterruptible power supply type leakage test comprehensive protection system comprises a protection device host machine and a power supply system. The power supply system is connected with a power using loader through a three-phase power line, and power supply main loop of the power supply system comprises a main circuit breaker and a bypass circuit breaker which are connected in parallel. A current transformer, a zero sequence current transformer, a three-phase electric reactor and a zero sequence voltage transformer are arranged on the three-phase power line. The protection device host machine comprises a miniature processor system, wherein the signal input end of the miniature processor system is connected with the current transformer, the zero sequence current transformer, the three-phase electric reactor and the zero sequence voltage transformer. The signal output end of the miniature processor system is respectively connected with the control end of the main circuit breaker and the control end of the bypass circuit breaker. By means of the technical scheme, when the uninterruptible power supply type leakage test comprehensive protection system performs a leakage tripping test, normal work of the power using loader is guaranteed, the purpose of automatically performing the leakage tripping test can be further achieved, and the leakage tripping test is simple, fast and safe in detection.
Description
technical field [0001] The invention relates to the technical field of coal mine safety, in particular to a circuit protection system. Background technique [0002] According to Article 457 of the "Coal Mine Safety Regulations", a trip test must be performed on the operation of the low-voltage leak detection device every day. At present, the existing tripping test method is bound to cause a certain range of blackouts. This will have an unsafe impact on electrical loads such as fans, water pumps, gas monitoring equipment, safety instruments and meters, and even accidents. [0003] Since there is a certain distance between the feed switch and the load, it is troublesome to restart the load after a power failure. Usually, during the trip test, multiple people are used to notify the power station by telephone or other contact methods. For unmanned automation management positions, it is necessary to send special personnel to deal with power recovery. The tripping experiment o...
Claims
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IPC IPC(8): H02H3/34H02J9/06
Inventor 程新宇
Owner SHANGHAI YI KUN AUTOMATION EQUIP