How To Select Capacitors For Induction Heating/Melting Equipment?
Applied Frequency options:
Line frequency 50Hz/60Hz
Medium Frequency: 100hz to 300000 Hz
Capacitor Type Options
Dry type: Mkp-type dry capacitor use at line frequency 50Hz/60Hz, voltage range 200V~ 4000V
Impreganted type: Used at line frequency and medium frequency(100Hz~300000Hz), all ranges voltage
Capacitor Case
Insulated casing and non-insulated casing available for options
Quality Testing Available
Leakage from the capacitor case
Leakage from the cooling tubes
Capacitance tolerance
Loss factor
Dielectric test between terminals
Dielectric test between terminals and case
How many cooling methods for induction capacitors?
1.Self-cooling
Cooling is achieved by natural air circulation. The enviroment temperature shall be ≥ 40℃. unless a specific designed is applied)
2.Forced ventilation
Ventilators will be applied, during the continous operation, the max temperature of the out-flowing air shall be ≥ 40℃.
3.Water cooling
The cooling-water tubes will be designed inside of the capacitors to cool down the capacitor. The max output cooling water shall be ≥40℃, while the enviroment temperature is ≥50℃.
Cooling Water Quality shall be 6-9 PH.
About the cooling water flow rate requirements, please go to
Instruction manual of water-cooled capacitor for induction heating application
