Heating and cooling equipment for engineering RIGS
When the power supply of the main motor heater of the top drive device is normal and the main motor is not running, the heater can be started and stopped by the "motor heating" switch on the door of the PLC/MCC cabinet, and the running state can be indicated by the heater indicator light of the PLC/MCC cabinet. When PLC system is normal
Heating and cooling equipment for engineering RIGS
Main motor heating equipment of engineering drilling rig:
When the power supply of the main motor heater of the top drive device is normal and the main motor is not running, the heater can be started and stopped by the "motor heating" switch on the door of the PLC/MCC cabinet, and the running state can be indicated by the heater indicator light of the PLC/MCC cabinet. When the PLC system is normal, the heater is interlocked with the main motor. If the main motor is started while the heater is working, the heater will automatically stop running. Heater cannot be started when main motor is running.
Cooling fan for main motor of engineering drilling rig:
The cooling fan of the top drive device is mounted on the upper end of the main motor. The switch of [fan] on the driller's operating platform reverses the "on" position and starts the main motor fan directly. The switch of [fan] reverses the "off" position to stop the main motor fan and drive cabinet fan, but the fan will not stop no matter the switch position of [fan]. [fan] switch down the "automatic" position, when the top drive system starts, automatically start the main motor fan; When the top drive system stops running, the fan will stop automatically after delay.
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