TEC Strange wires

[Micky TParticipant @mickyt]

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

[Micky TParticipant @mickyt]

[not done it yetParticipant @notdoneityet]

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

[Ex contributorParticipant @mgnbuk]

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

[Nathan SharpeParticipant @nathansharpe19746]

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.

[Steven VineParticipant @stevenvine79904]

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)

[Micky TParticipant @mickyt]

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

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