Single phasing

[dicklaxt]

Here's a good link to some of the problems of having overload heaters in only two phases and then interlocked in the motor control circuit.


https://www.progress-energy.com/assets/www/docs/business/motor-pr


dick

 

[kwired]

Here's a good link to some of the problems of having overload heaters in only two phases and then interlocked in the motor control circuit.


https://www.progress-energy.com/assets/www/docs/business/motor-pr


dick

Your link says "page not found".

 

[dicklaxt]

Thats odd it won't come up for me either,,,,,,,,do it this way.

Google,,,,,,,,,,,,,motor single phasing and a (pdf) called Motor Protection Voltage Unbalance and Single Phasing.

dick

 

[Ponchik]

Here's a good link to some of the problems of having overload heaters in only two phases and then interlocked in the motor control circuit.


https://www.progress-energy.com/assets/www/docs/business/motor-pr


dick

https://www.progress-energy.com/assets/www/docs/business/motor-protection-voltage-unbalance.pdf

 

[dicklaxt]

Yep thats the one,,,,thanks for posting a different path/link


dick

 

[jim dungar]

Only two overloads for three phase motors has not been allowed by the NEC for more than 40years.