Aico 3000 Range
This official sponsor may provide discounts for members

Discuss compressor fault.. in the Commercial Electrical Advice area at ElectriciansForums.net

T

TPES

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

Hey all

I had a call out today to a Motorbike shop.

In the village where the shop is they had had a power cut the night before, they had come into work the next day, the power had been restored so they powed up, everything seemed to be fine exept the Compressor used by the mechanics in the workshop.

So i was called out to look at the compressor.

I have not done much 3 phase at all, nearly all domestic. but i dont want to turn any work down and want the experiance in every field.

I got to the compressor and it was a very old thing, with an isolator on the wall wich was feeding what seems to be an overload unit, (red/green start stop buttons, i could be wrong).

I sourced the fault to be the contactor inside this unit, the coil inside the contactor seemed to have got that hot it had melted the plastics surounding it, it had gone black with a slight smell. This had stoped any contact between the phases passing through it.
I had got the contactor out and manged to push in with my fingers the contactor, when i did this i put my tester across the terminals getting it to make a contact.

The photo shows the contactor



Now my question is.. What would of caused this to overheat? there would seem to be too much current down one of the phases some how causing it to get too hot and melt the plastics around the coil.

How can this be prevented from happeing again once the contactor has been replaced?

(Sorry to have gone on)
 

Attachments

Last edited by a moderator:
uHeat Banner - Forum Discount Available
This official sponsor may provide discounts for members
T

TPES

  • Thread Starter Thread Starter
  • #3
You must be logged in to see the message.
 

Attachments

T

TPES

  • Thread Starter Thread Starter
  • #6
You must be logged in to see the message.
 
G

Guest123

  • Thread Starter Thread Starter
  • #7
You must be logged in to see the message.
 
Electrical2Go - Online Electrical Supplier
This official sponsor may provide discounts for members

Reply to compressor fault.. in the Commercial Electrical Advice area at ElectriciansForums.net

Top Bottom