Power system fault automatic alarm device

Abstract

The invention discloses a power system fault automatic alarm device which comprises current acquisition devices, voltage acquisition devices, a wireless transmission device, a central processing unit,an alarm device, a monitoring center and a current acquisition device, the voltage acquisition device is arranged on the power transmission line and is connected with the wireless transmission device. each current acquisition device and each voltage acquisition device are arranged on the power transmission line at intervals of 50 meters to acquire the data of the current and voltage on the powertransmission line, the acquired data information can be transmitted to the monitoring center in real time, the central processing unit of the monitoring center analyzes and processes the received data, and an alarm instruction is issued to the alarm device if the fault problem occurs, the working personnel determine the occurrence of the fault according to the alarm sound, determine the position of the short-circuit fault, and timely dispatch workers to carry out fault clearing.

Description

technical field [0001] The invention relates to a power system, in particular to an automatic alarm device for a power system failure. Background technique [0002] A short circuit is a circuit or part of a circuit that is shorted. If the two ends of the load and the power supply are connected together by wires, it is called a short circuit. The current provided by the power supply during the short circuit will be much larger than the current provided during the pass through. Generally, a short circuit is not allowed. If the short circuit is serious, the power supply will be burned out. or device. In the power system, the so-called "short circuit" refers to the connection between phases or between phases and grounds other than the normal operation of the power system. The basic forms of short circuit in the three-phase system are: three-phase short circuit, two-phase short circuit, single-phase ground short circuit, two-phase ground short circuit. A very large current flo...

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Problems solved by technology

[0003] The invention solves the problem in the prior art that when a short-circuit fault occurs in the power system, the people in the control center cannot timely and accurately know the specific location of the short-circuit fault, and provides an automatic alarm device for power system faults, which can be applied timely and accurately Report the specific fault location to the control center, and the control center can send staff to find out where the fault occurred at the first time, and troubleshoot the fault to avoid the power system being paralyzed due to the fault

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