Diagnosing Medium Voltage GIS Circuit Breaker by Observing Trip Coil Current with Simulation and Actual Tests

Cheng, Chao-Yuan; Chen, L. J.; Kao, Wei-Chih

doi:10.1080/15325000701549285

Cited by 12 publications

(7 citation statements)

References 4 publications

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“…The iron plunger is rapidly pulled upwards by the magnetic force. The trip coil current is similar to that of the current in an energised R‐L circuit [13] as illustrated in Fig. 1 b .…”

Section: Cb Operation Procedures and Abnormality Analysesmentioning

confidence: 80%

“…Finally, the main contacts are pulled apart by the spring force, the line or fault current is interrupted. The trip operation is completed [13, 16].…”

Section: Cb Operation Procedures and Abnormality Analysesmentioning

confidence: 99%

“…Utilising the finite element method, the magnetic force effect on the trip shaft gaps was further discussed in [11, 12]. Many mathematical equations were derived to help the diagnosis of the gas insulated switchgear (GIS) by change of the trip coil current [13]. Recently, in [14], mathematical function module blocks were constructed and trip coil current was simulated with the Matlab/Simulink software.…”

Section: Introductionmentioning

confidence: 99%

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Computer modelling and field testing of the trip mechanism for GIS

Yang

Wang

Chen

et al. 2016

IET Generation, Transmission & Distribution

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“…The iron plunger is rapidly pulled upwards by the magnetic force. The trip coil current is similar to that of the current in an energised R‐L circuit [13] as illustrated in Fig. 1 b .…”

Section: Cb Operation Procedures and Abnormality Analysesmentioning

confidence: 80%

“…Finally, the main contacts are pulled apart by the spring force, the line or fault current is interrupted. The trip operation is completed [13, 16].…”

Section: Cb Operation Procedures and Abnormality Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Computer modelling and field testing of the trip mechanism for GIS

Yang

Wang

Chen

et al. 2016

IET Generation, Transmission & Distribution

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“…In Ref. [15], the mechanical and electrical models of the tripping mechanism in 23 kV GIS were built. The CC with different shaft gap length and resist force is simulated and the results were verified by experiments.…”

Section: Introductionmentioning

confidence: 99%

A Recognition Method for the Coil Plunger Motion Resist Force Based on Coil Current in Vacuum Circuit Breaker

Wang

Ruan

2022

IEEJ Transactions Elec Engng

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Jams in the tripping devices are common faults in circuit breakers, which will lead to the failures in circuit breaker. The resist force of the coil plunger in the tripping device could effectively reveal the jam faults. In this paper, a recognition method for the coil plunger motion resist force based on coil current is proposed. The electromagnetic motion model of the coil is established, and the plunger resist force in VS1‐12 is recognized. According to the recognition result and the moving process of the coil plunger, the fitting formula of the resist force is proposed. The resist force from the coil is 5 N, while the force from the latch is 52 N. Based on the fitting formula, the trip coil current of the circuit breaker is simulated. The result is in good agreement with the test result, which verifies the validity of the fitting formula and the recognition method. The method can be applied to the circuit breaker with spring operating mechanism and effectively extract the resist force from the coil current. This research can provide reference for the condition detection and fault warning of coils in circuit breaker. © 2022 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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“…They present several example curves and how a failure detection algorithm can work. Cheng et al have deduced formulas for the mechanics, simulated the trip coil current and tried the formulas in a test set-up [70].…”

Section: B Mechanical Operationmentioning

confidence: 99%

A review of methods for condition monitoring, surveys and statistical analyses of disconnectors and circuit breakers

Westerlund

Hilber

Lindquist

et al. 2014

2014 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)

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Abstract-There is a need for a new survey of conditionmonitoring methods for circuit breakers and disconnectors, since during the last two decades less than ten surveys have been carried out. The paper presents several statistical surveys and analyses. The methods of condition monitoring found are reviewed and classified according to the different types of failure identified in the surveys. Some research gaps are identified, such as the prediction of the degradation of the contacts, the signal processing of coil and motor currents and the switching.

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Diagnosing Medium Voltage GIS Circuit Breaker by Observing Trip Coil Current with Simulation and Actual Tests

Cited by 12 publications

References 4 publications

Computer modelling and field testing of the trip mechanism for GIS

Computer modelling and field testing of the trip mechanism for GIS

A Recognition Method for the Coil Plunger Motion Resist Force Based on Coil Current in Vacuum Circuit Breaker

A review of methods for condition monitoring, surveys and statistical analyses of disconnectors and circuit breakers

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