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Generator opening voltage function by detecting the voltage on the opening triangle, we can know wheConsult now
Generator opening voltage function by detecting the voltage on the opening triangle, we can know whether there is grounding phenomenon in the high-voltage system, which is called grounding monitoring in the system. When the static rotor winding of the motor is open circuited, adjust the input voltage at the stator winding side, measure the voltage at the rotor side when the rotor winding voltage is converted to the rated stator voltage, that is, the rotor opening voltage. When the system has a single-phase grounding fault, the phase voltage of the primary winding of the voltage transformer is zero, the other two phases increase by 3 times, and the phase voltage of the corresponding secondary winding and residual voltage winding also increases by √ 3 times. Among the three-phase windings of the residual voltage winding, the voltage of one phase is zero.
The three-phase five column voltage transformer of generator is mainly used for high-voltage equipment. Its working purpose is to monitor whether the phase voltage and line voltage of operating equipment meet the operating indicators.
Another function of the voltage transformer is to provide a working voltage for the operation circuit and metering circuit of the high-voltage equipment to ensure the safety of operators and the accuracy of high-voltage metering.
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