ZH-ZYK type quick-start intelligent direct-current oil pump motor control cabinet

Abstract

The invention relates to the technical field of motor control cabinets, and in particular relates to a ZH-ZYK type quick-start intelligent direct-current oil pump motor control cabinet which comprisesa motor control cabinet shell, an IGBT switch is installed at the position, located below a button with a lamp, of the front surface of a cabinet door, a large-screen man-machine panel is installed at the upper end of the interior of the motor control cabinet shell, a water tank is installed at the lower end of the interior of the motor control cabinet shell, and a remote DCS remote control module, a local control module, an information storage device, a fault self-diagnosis module, a start / stop protection module, an excitation disconnection and overcurrent protection module, an IGBT module overcurrent and overtemperature module, an armature current and voltage overrun module and an alarm are installed on the rear surface of the interior of the motor control cabinet shell. Two modes of remote (DCS) and local control are adopted, and complete fault self-diagnosis functions including start / stop protection, excitation disconnection and overcurrent protection, IGBT module overcurrent andover-temperature alarm, armature current and voltage over-limit alarm and a large-screen Chinese human-computer interface are achieved.

Description

technical field [0001] The invention relates to the technical field of motor control cabinets, in particular to a ZH-ZYK type quick-start intelligent DC oil pump motor control cabinet. Background technique [0002] Generator lubricating oil system of power plant consists of lubricating oil tank, main oil pump, AC lubricating oil pump, oil injector, oil cooler, emergency DC oil pump, jacking oil pump system, oil fume separation device and oil purification system, etc. The system is required to provide a reliable lubricating (sealed) oil source for the main bearings, thrust bearings, barring devices, and related sealing oil systems of the steam turbine and generator, and at the same time provide pressure oil control to ensure the safe operation of the system. Once the system is out of control, it will cause the steam turbine and The generator is damaged and shut down, and the loss is very serious. The accident DC oil pump is used as the backup protection of the lubricating oil...

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Problems solved by technology

[0003] However, once the motor control cabinet on the market is out of control, the steam turbine and generator will be damaged and shut down. The loss is very serious. The drive control of the accidental DC oil pump is unreasonable and leads to failure. Generally, the motor control cabinet will have a large working process. Heat, failure to dissipate heat in time will lead to damage to the device. Most of the devices are used in a single way, and the dual control mode of remote control and local control cannot be combined, which is not conducive to the convenience of use of the device. Most devices need to be connected to an external display device when using. less convenient

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