YAS

Metallized Film Capacitor for Electrical Apparatus (Inner Safety Protection Device)

Inner Safety Protection Device (Pressure Sensitive interrupter)
In certain instances capacitor failure may result in case rupture due to eases generated internally.
Even if rupture does occur, the probability of fire is still low as the right conditions of temperature and source of ignition must be present.
In order to reduce the possibility of capacitors rupture, OHYOUNG incorporates an internal protection mechanism into capacitors where the construction and application conditions allow.
The listings of each family of capacitors indicate if internal protection is included or not.
The protective mechanism is the Pressure Sensitive interrupter.
It senses the Build-up of pressure within the capacitor and interrupts the internal connections taking the capacitor out of the circuit before rupture can occur. As shown in the figure.
The fault current is the maximum current that circuit can provide if the capacitor becomes a short circuit.
Capacitance : See table
Capacitance Tolerance : +10 -5%
Rated Voltage : See table
Rated Frequency : 50Hz and/or 60Hz
Maximum Ambient Temperature : -25°C to + 80°C
Withstanding voltage : Between terminal → Rated voltage x 2 VAC, 60sec
Between terminal (Tied together) and case → Rated voltage x 2 + 1,000 VAC (min 2,000\/AC), 60sec
Insulation Resistance : Between the collected terminal and the case → 2,000MQ or greater
Seal Ability : There shall he no oil leakages even if left for 1 hour under a constant temperature of 80°C
Internal Protection : Pressure sensitive interrupter
Fault Current : 10, 000 AFC
Class of Reliability : Class B (10,000hr)