subject: What is the P2 meaning on the run capacitor ? [print this page] Run capacitor explosion-proof safe class,it have P0, P1, P2.
P0 meaning no explosion-proof safe.
P1 meaning capacitor film explosion-proof safe.
P2 meaning metal top case explosion-proof safe.
P2 meaning Explosion-proof run capacitor, Also Call CBB65 Capacitor in china.
2.What is the Explosion-proof Capacitor theory ?
1. Pressure explosion-proof equipment
When the capacitor insulation level of a particular component falls, inevitably produce exceptional heat, internal pressure increases, the capacitor shell deformation, swelling, mechanical displacement of the proof sheet (line) pull off. As the power supply components through phase explosion-proof film and capacitors, explosive power equal to disengage opening piece, explosion proof depends on a piece of design, installation location and sealing capacitors and so on.
2. Safety Film, Also call P1 Explosion-proof Capacitor
The metal film deposited into a network structure, that is, the capacity of the capacitor element is divided into a considerable number of small capacitors in parallel. Deposited into each small capacitor has a current insurance structure, the capacitor component of a small capacitor self-healing failure weak office, the small capacitive current fuse, launch operation, and little capacity loss of the components.
3. Temperature Current Insurance
Capacitor combination of multiple capacitor elements, each element if the set temperature current security devices, when a component fails due Insulation of self-healing, even when shorted, will produce thermal currents, temperature, current insurance, bring action, the components out of operation immediately, while the whole machine can continue normal operation of capacitor, only a small amount of reduction of the capacitance.
