Analog synchronization testing method for generator

Abstract

The invention relates to an analog synchronization testing method for a generator. An analog synchronization experimental facility for the generator is used for carrying out a generator analog synchronization test and mainly comprises a left slide rod, a right slide rod, an upper sliding plate and a lower sliding plate which are connected with one another in a #-shaped manner; the upper sliding plate is provided with a time relay and three digital display voltmeters for measuring voltage, and each digital display voltmeter is connected with the time relay; the lower sliding plate is provided with a phase-sequence meter, an upper-end live display, a lower-end live display and a voltage conversion switch; the upper sliding plate and the lower sliding plate are respectively provided with three voltage dropping resistors, the tails of the voltage dropping resistors are respectively connected with the respective sliding plates, and can slide in resistor sliding grooves of the sliding plates, and the tail ends of the voltage dropping resistors are connected with the ground or the voltmeters and the meter on the sliding plates; and the bottoms of the left slide rod and the right slide rod are provided with magnetic bases. The device is convenient to use, and time parameters are set simply; and voltage reading is accurate, a quasi-synchronizing device can accurately set leading time conveniently, and impact current during synchronization can be reduced as much as possible.

Description

technical field [0001] The invention relates to the field of power system debugging, in particular to a generator simulation synchronization test method. Background technique [0002] In the debugging process of the generator system, the generator must be simulated and synchronized before being incorporated into the system. On the one hand, it can check the correctness of the closing and protection circuit circuits, and at the same time, it can also check the correctness of the parameter settings of the quasi-synchronizing device. sex. For the simulated synchronous test of the generator, the test voltage is generally applied to the low-voltage main line, and the quasi-synchronization device issues an instruction to close the grid-connected circuit breaker; or the grid-connected circuit breaker is placed in the test position before the generator is connected to the grid, so that The quasi-synchronizing device issues an instruction to close the grid-connected circuit breaker....

AI Technical Summary

Problems solved by technology

These two methods can check the reliability of the quasi-synchronization device and the operation of the circuit breaker, but whether the timing of grid connection is appropriate depends on the parameters of the quasi-synchronization device. The specific voltage difference between the system side and the side to be paralleled at the instant of grid connection It is impossible to know that if the parameter setting of the quasi-synchronization device is not accurate, especially the setting of the lead time is not accurate, a large inrush current will be generated at the moment of grid connection

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