HNC Electric HRS Series, Руководство по эксплуатации

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8.2 Daily maintenance of soft starter
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Prevent electric shock and dust
If there is too much dust, the insulation level of the soft starter will be reduced and the soft starter may not work properly.
a. Creepage and arcing in the primary circuit will endanger the equipment;
b. Leakage, short circuit in the secondary circuit, control failure;
c. The thermal resistance of the radiator increases, and the temperature of the SCR increases.
●
Clean up dust
a. Use a clean and dry brush to gently brush away the dust;
b. Blow off the dust with compressed air.
●
Condensation
If frost is formed, the insulation level of the soft starter will be reduced, and the soft starter may not work properly.
a. Creepage and arcing in the primary circuit will endanger the equipment;
b. Leakage, short circuit in the secondary circuit, control failure;
c. Strengthen the seat corrosion of metal parts.
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Dry
a. Drying with electric blowing or electric furnace;
b. Dehumidification in the power distribution room.
Schedule 1. Application field
Mechanical type Load type
Starting mode Value setting
Rise time
Voltage Current Heavy
load
Voltage (%) Current (%)
Centrifugal pump Standard load
•
250 5
Fan Heavy load
• •
400 40
Compressor (piston type) Standard load
•
300 10
Compressor (centrifugal type) Standard load
•
30 20
Conveyor machine Standard load
•
250 10
Blender Standard load
• •
350 5
Ball mill Heavy load
• •
70 400 50
Crusher Heavy load
•
60 45