TEC Strange wires

Hi all I hope someone out there can help identify a couple of strange wires in a TEC electric motor.

As you can see in the photo above i have 2 blue wires in a conection block that dont seem to have any use. They do not connect to the main winddings. I have had the motor running and every thing seems to be running ok. Are they any thing i need to be concerned with or can i just ignore them.

I'm looking forward to your replys

Mick

Likely a thermistor connected to them and embedded in the windings?

Likely a thermistor connected to them and embedded in the windings?

Ditto, though it could be a thermal switch - have you tried measuring the resistance between the two wires ? Also, look inside the connecting box lid - frequently find a connecting diagram there.

If you are running the motor from an inverter, does it have a motor overheat input ? Some have a thermistor input - if yours turns out to be a thermistor, wire it to the drive as described in the drive manual so the drive can monitor the winding temperature.

Nigel B

In my line of work they are commonly known as Klixon connections, a thermally operated switch, which if you have the terminations for ( on your control panel) you should connect. It can save from a few hundred to many thousands of pounds sterling in downtime/rewinds on pumps (my line of work) or conversely cost YOU that much! I'm not sure who, of the pump manufacturers, made them popular but it was probably Flygt. Nathan.

This link should take you to the 'Thermistor' page in the TEC motors online catalog.

**LINK**

Steve (who really should be doing his tax return)

Thank you all for your replies.

It is connected to a Huanyang inverter 1.5kw, I'll have to check to see how I can take advantage of the thermistor. I've only just purchased both and I'm still trying to get my head around the chinglish manual

Mick