Pump use and maintenance 1. Startup: (1) The 11 kW electric pump allows direct start. 13 kW electric pump should be equipped with step-down starter cabinet to protect the safe operation of electric pump. (2). In order to avoid electric pump The rotor momentarily channeling and reduce the starting load.Electric pump should start the export valve trip to 3 / 4. (Leave 1/4 air gap to deflate) to be started after the water slowly open to the pump conditions Point control in the appropriate position. (3) start after the start of operation should be strengthened monitoring and observation of water level changes to ensure that the electric pump operating in the operating range until the pump stable operation before it can be put into formal operation. (4) electric pump After put into operation for 5 hours, shut down quickly measure the thermal insulation resistance. Its value is not less than 0.5MΩ. In order to continue to use. 2 stop pump: before the pump down. To prevent water backflow. Turn off the power at the same time Valve.Reboot time interval more than 20 minutes. 3.Operation and maintenance. (1) .Pump should work in the design conditions point.At this time the axial force is moderate.Pump efficiency is the highest. The most economical and reliable. (2) electric pump Every 8 hours of operation to be fully checked once. Whether there is any change in the various instruments. Circuit nodes are heating. Sound is normal. Normal The current is greater than the motor brand name rating. 4. There is one of the following circumstances. Should immediately stop the pump. (1). Pump current suddenly higher than the rated current of the motor. (2) The amount of water is not normal, (3) The insulation resistance of the motor is less than 0.5 Megohms (4) The unit has obvious noise vibration aggravating (5) The grid voltage is insufficient, and the voltage less than 5% of the rated voltage 6) Fuse burns out one phase (7) Water pipeline is damaged 5. Maintenance precautions (1) Check voltage and outlet pressure every day Check dynamic water level every 2 weeks and make a record (2) Every 4 weeks Inspect the motor insulation resistance and make a note of it. (3) use to minimize the number of start-up 4 electric pump if not used continuously down well, it should be switched on once a week and run for 5-10 minutes to prevent the pump can not start due to corrosion. 6. Electric pump storage and handling. Store the electric pump clean water in the motor cavity. Dry the surface. Shaft coupling to be coated with anti-rust grease. Should be erected. (In case the rotor deformation.) In Dry. Non-corrosive chemicals. Normal temperature place. Winter temperature of not less than -3 ℃
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