Compressor Electrikery

[mr haynes]

I wasn't disputing the reading. Also seems odd to have two different valve caps in parallel, could they have been aiming for 35uf. On my old compressor 2800 rpm 2.2kw motor it had a single 40uf cap

No idea, was surprised myself

 

[carbon]

I'd check the condition of the joint behind the insulation but does look like solder on the outside.

Also found this not sure if it helps or makes things worse.

http://www.kenworthproducts.co.uk/acatalog/Emg Single Phase.pdf

Possibly current motor of similar size and power is EM BP 100L-2A which shows two caps one 40uf and one 20uf for a permanent capacitor single phase motor

 

[mr haynes]

I'd check the condition of the joint behind the insulation but does look like solder on the outside.

Also found this not sure if it helps or makes things worse.

http://www.kenworthproducts.co.uk/acatalog/Emg Single Phase.pdf

Possibly current motor of similar size and power is EM BP 100L-2A which shows two caps one 40uf and one 20uf for a permanent capacitor single phase motor

Good find! Will read through.
There is definitely a "100", a "2" and a "B" on the original plate

 

[carbon]

100 is the frame size, centre of the shaft should be 100 mm from the bottom of the foot mounting

 

[mr haynes]

I wasn't disputing the reading. Also seems odd to have two different valve caps in parallel, could they have been aiming for 35uf. On my old compressor 2800 rpm 2.2kw motor it had a single 40uf cap

Been thinking more and i reckon you must be right, a single cap of correct size was not readily available. I can't see any other reason for it.
Still seems weird to me, and my knowledge is sadly lacking!

Think i'll message manufacturer, see if they reply

 

[mr haynes]

This to me doesn't look right either

 

[carbon]

Why where are the capacitor wires connected?

 

[Lewis_RX8]

think mine looks simillar if that helps

 

[mr haynes]

Nothing on w2 or u1

 

[carbon]

It’s a single phase motor, sometimes one of the connections is used for a connection for the capacitor but depends on the manufacturer the direction could easily be changed by changing the direction of the links from vertical to horizontal and moving either the live or neutral

 

[mr haynes]

It’s a single phase motor, sometimes one of the connections is used for a connection for the capacitor but depends on the manufacturer the direction could easily be changed by changing the direction of the links from vertical to horizontal and moving either the live or neutral

Thinking about it, last motor i wired up would have been 3 phase