Re: Cap. Discharge Res.

Normally they have a resistor across either the motor run or motor
start capacitor, here in the states we're talking 470K ohms at 1 watt,
in a 220-240vac world more like 1meg at 2 watts.. Really, if you don't
exceed the wattage or voltage rating of the resistor you will be ok.

TimPerry wrote:
M.Joshi wrote:
Hi Arfa,

You are spot-on, I am referring to the capacitor across the
mains/supply (Usually termed X-type).

We have a kitchen appliance (Moulinex - I think) which has a motor and
is connected by a switch which automatically disconnects when you stop
using the machine.

I have found that if the plug is removed, you get a small
electric-shock if you accidently touch the live & neutral pins. I
tested this by plugging the appliance into the mains socket, then
removing the plug and shorting the two pins together. You can see and
hear a small spark!

I am assuming that either the appliance has a faulty resistor
connected across the supply capacitor or they failed to include one at
manufacture?


oh, a juicer!

don't worry about it. the charge contained will be too small to damage
anything.

unless it a UK term that i have not heard of there is no such thing as a
"mains capacitor". you are referring to an RFI/EMI filter. i doubt anyone
would put power factor correction (PFC) in a small appliance.

any modification involving the addition of a resistor to the appliance would
likely increase the potential for fire hazard. removal of the filter would
possibly increase buzz in you sound system or interfere with radio/TV
reception when the appliance is in operation.

.

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