Power station power supply disconnection malfunction preventing device
A malfunctioning, power station technology, applied in the direction of electrical switches, circuits, relays, etc., can solve the problems of power disconnection of power station and idle speed of power station units.
Pending Publication Date: 2019-07-26
JIANGXI QINGHUA TAIHAO SANBO ELECTRICAL MACHINE
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- Application Information
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Problems solved by technology
When the manual-automatic working mode is switched, there will be a phenomenon that the coil working power of relay KA04 is disconnected and stopped, the power station unit is idling, and the power supply of the power station is disconnected.
Method used
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Embodiment Construction
[0015] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, but the embodiments are not intended to limit the present invention.
[0016] Such as figure 1 As shown, the present invention is a device for preventing malfunction of the power supply disconnection of the power station. After the output switch of the power station unit is closed for power supply, the device uses the auxiliary contact of the output switch of the power station unit to drive a relay KA05, and a group of relay KA05 One end of the normally open contact KA05_1O is connected to the DC positive power supply, and the other end is connected to the positive pole of the power supply of the coil of the idling-full-speed relay KA04 of the power station unit, that is, the full-speed operation relay KA04 of the power station unit is locked after the output of the power station unit is closed, to avoid failure due to full-speed failure. The o...
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The invention discloses a power station power supply disconnection malfunction preventing device. The device is specifically implemented as follows: after a power station unit output switch is switched on and powered, an auxiliary contact of the power station unit output switch drives a relay KA05; one end of a group of normally-on contact KA05-1O of the relay KA05 is connected with a direct current positive power supply, and the other end is connected with a working power supply positive electrode of a coil of an idling speed-full speed relay KA04 of the power station unit, that is, after thepower station unit is output and switched on, the full speed operating relay KA04 of the power station unit is locked, so that voltage-loss tripping and power supply disconnection of the power station unit output switch caused by voltage loss due to voltage reduction of the power station unit when the speed-full speed relay KA04 suffers from wrong power outage and idling speed operation can be avoided; one end of a group of normally-on contact KA05-2O of the relay KA05 is connected with a direct current positive power supply, and the other end is connected with a working power supply positiveelectrode of a coil of an oil valve relay KA03 of the power station unit, that is, after the power station unit is output and switched on, the oil valve relay KA03 of the power station unit is locked, so that voltage-loss tripping, power supply disconnection and shutdown of the power station unit output switch caused by voltage loss due to voltage reduction of the power station unit when the oilvalve relay KA03 suffers from wrong power outage can be avoided.
Description
technical field [0001] The invention relates to a device for preventing malfunction of power supply disconnection of a power station, in particular to a device capable of preventing malfunction of power supply disconnection of a power station. Background technique [0002] At present, the power supply system of the power station is equipped with a generator set controller, which realizes the start (idle speed-full speed), closing, opening, and shutdown control of the diesel generator set in the power station through the generator set controller. The power station has a manual working mode and an automatic working mode, and the manual working mode and the automatic working mode can be switched to each other without affecting the power supply status of the power station. In the manual working mode, the power station maintains the external power supply state, and power supply disconnection is not allowed. [0003] The idle speed-full speed of the power station unit is controll...
Claims
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Login to View More IPC IPC(8): H01H47/00H01H9/26
CPCH01H9/26H01H47/001
Inventor 万新云余锐昝鑫
Owner JIANGXI QINGHUA TAIHAO SANBO ELECTRICAL MACHINE