No. It will have mechanical problems like bearing failure.
If the motor is run at lower speed, cooling will be insufficient. With a higher frame motor more surface area for cooling will be available.
Driven equipment is designed to run at a particular speed only. If it is run at higher speed, mechanical damage and accident may occur. If it is run at lower speed, an output will be less than rated.
Please refer to the performance chart for the motor in the relevant section on this website.
Please refer to the performance chart for the motor in the relevant section on this website.
his has to be obtained from the starter supplier.
Please refer to the performance chart for the motor in the relevant section on this website.
Please refer to the performance chart for the motor in the relevant section on this website.
Normally for small motors up to 10 HP – DOL, for 10 HP and above rating star-delta and for slipring motors – Rotor
resistance.
2 Hot, 3 Cold and 4 Equally spaced starts for S1 duty motors.
As per insulation class of the winding. Please refer relevant chart for insulation in the related section on this website.
Increase in ambient temperature will affect the output/KW of the motor.
Temperature withstanding capacity of the motor winding differs with the class of insulation material used. Class ‘B’ insulation temperature limit is 130 0C. Class ‘F’ insulation temperature limit is 155 0C. Naturally, Class ‘F’ is better than Class ‘B’.
Yes, to a certain limit. Apart from insulation failure, mechanical stresses also take place due to voltage surges in the motor winding.
90 % of rated voltage.
As per IS 325.
Please refer the performance chart for the relevant motor in the related section on this website.
Please refer the performance chart for the relevant motor in the related section on this website.
Please refer the performance chart for the relevant motor in the related section on this website.
Please refer the performance chart for the relevant motor in the related section on this website.
Please refer the Bearing chart in the related section on this website.
Please refer the Bearing chart in the related section on this website.
Please refer the Bearing chart in the related section on this website.
Please refer the performance chart for the relevant motor in the related section on this website.
Please refer the performance chart for the relevant motor in the related section on this website.
The motor will draw high current. If it runs continuously at low voltage, the winding may get burnt.
90% of the rated supply voltage.
Please refer the performance chart for the relevant motor in the related section on this website.
No, 380 V rating motors are to be separately procured at extra cost.
No, Such a motor shall have to be manufactured specially and will be available at extra cost. Like
Normally not. But a double shaft extension can be supplied on request at extra Cost.
Yes, at extra Cost.
33. Are there differences between old and new frame sizes and also between KEC make and other makes?
Major dimensions do not differ. All renowned manufacturers adopt the same international standards and hence frame sizes do not differ.
Yes, at extra cost. Thermistors monitor winding temperature and space heaters are used to keep winding warm during the idle stage.
Yes, at extra cost.
Yes, at extra cost.
It mainly indicates the shaft center to base plate height in millimeters. Prefix letters are mainly abbreviations of manufacturers code like KH-Kirloskar Hubli, PM – Primo etc.