Monitoring system of tripping pulse of breaker

A technology for circuit breaker tripping and pulse monitoring, which is applied in the direction of circuit breaker testing, pulse characteristic measurement, signal transmission system, etc. It can solve the problems of unreliable identification of circuit breakers, low troubleshooting efficiency, time-consuming and labor-intensive problems, and reduce fault finding Range, low power consumption, and the effect of ensuring safe operation

Active Publication Date: 2012-03-28
SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +3
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Problems solved by technology

Since there is no corresponding trip pulse monitoring device with recording function for each electrical circuit that may cause the circuit breaker to trip, it is often impossible to reliably distinguish whether the sneak tri

Method used

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  • Monitoring system of tripping pulse of breaker
  • Monitoring system of tripping pulse of breaker
  • Monitoring system of tripping pulse of breaker

Examples

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Embodiment approach

[0032] (1), tripping pulse monitor:

[0033] (1) The first microcontroller selects TI's ultra-low power consumption MSP430F2132 single-chip microcomputer, with 8kB Program, 512kB SRAM, a set of IrDA interface and a set of I2C interface, the working voltage is 1.8-3.6V, and the low power consumption mode can reach 0.1 uA, suitable for battery powered systems.

[0034] (2) The first real-time clock chip adopts M41T62 high-precision and low-power real-time clock chip of ST Company, the time is accurate to 10ms, and provides an accurate calendar time for the system, and the current in low-power mode is 0.35uA. The serial interface supports the I2C bus, and is connected with the first microcontroller hardware as attached image 3 shown.

[0035] ) (3), the first infrared transceiver module adopts SHARP company's GP2W0110YPS infrared transceiver module. The module is small in size, low in power consumption, and the off-state current is not more than 0.1uA. It meets the irD...

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Abstract

The invention discloses a monitoring system of a tripping pulse of a breaker. The system comprises a tripping pulse monitor and a tripping signal reader. The tripping signal reader reads monitored tripping generation time and a monitored tripping pulse width from the tripping pulse monitor as well as converts the read tripping generation time and the read tripping pulse width into GPS time service time to carry out displaying; in order to solve a breaker's non-fault trip accident without a protection action signal, it can be rapidly discriminated that whether the breaker's tripping action is caused by a secondary circuit fault or by itself reason, so that a tripping reason can be determined; and thus, a corresponded measure is taken to enable the breaker to work normally again. The monitoring system has characteristics of small and exquisite appearance, low power dissipation, and maintenance-free property; besides, the monitoring system can be installed without need of power failure; and monitoring points can be arranged reasonably and a fault searching range can be rapidly and effectively reduced. Moreover, the tripping signal reader is utilized to read data related to tripping from the tripping pulse monitor in a wireless communication mode to conveniently carry out an analysis and comparison, so that the fault can be eliminated rapidly and safe operation of the system can be guaranteed.

Description

technical field [0001] The invention relates to a circuit breaker tripping pulse signal monitoring system. Background technique [0002] In the power system, the high-voltage circuit breaker sneaks out from time to time, which brings certain harm to the safe and stable operation of the system. Generally, there are two reasons for the sneak trip of the circuit breaker. One is the trip caused by the mechanical failure of the circuit breaker mechanism itself, and the other is the trip caused by the secondary circuit failure. Since there is no corresponding trip pulse monitoring device with recording function for each electrical circuit that may cause the circuit breaker to trip, it is often impossible to reliably distinguish whether the sneak trip is caused by the mechanism or the secondary circuit fault after the circuit breaker trips. Jumping, it is time-consuming and laborious to identify the reason for stealing jumps, and the efficiency of troubleshooting is low. Content...

Claims

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Application Information

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IPC IPC(8): G01R31/327G01R29/02G08C17/02
Inventor 薛峰谢夏寅童勤毅李栋陆凤杨赵二川
Owner SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER
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