Motors & Transformers

Low Voltage Motors

FEATURES	VALUES/ STANDARDS
Ambient Temperature	-10 to +50°C
Altitude	Not exceeding 1000mtrs above mean sea level.
Atmosphere	Non corrosive & non hazardous
Relative Humidity	Up to 100%
Voltage	415V±10% , 3 ph.
Frequency	50Hz ±5%
Combined Variation	10%
Duty	S1 (continuous)
Service factor	1.0

FEATURES	VALUES/ STANDARDS
Starting	DOL for all Or Star delta for frames 100 & above.
Permissible starts/hr	2 Hot / 3 Cold / 4 Equally spread
Loading at reduced volts	75% Rated volts for 5 minutes
Insulation / temp.rise	Class ‘F’/70 deg C
Direction of rotation	Bi-Directional
No. Of leads	3 up to 90 frame & 6 for including and above 100 frame
Connection	Star up to 90 frame and , Delta including and above 100 frame
Degree of protection	IP55, IP 66 on request.
Method of cooling	IC 411
T.box position	Top TB Standard and side TB – optional ( RHS from DE)
Bearing life	40,000 hours for direct drive, 20,000 hours for belt drive
Vibration	Normal class as per IS 12075
Noise	As per IS 12065.
Construction	Foot, ‘B’ flange, ‘C’ flange, Foot cum ‘B’ flange , Foot cum ‘C’ flange
Frame sizes	Ravi series 63-315
Mounting arrangement	Multiple mounting holes in same body, S/M/L as per standard
Shaft extension	Single cylindrical extension as per IS 1231
Body material	CI from 63-315 frame
T.box material	Nylon Up to 132 frame /sheet metal 160 frame and above
Fan material	Polypropylene up to 225frame/ 250 and above fabricated steel
Accessories	Nil, Thermistor, space heater, winding RTD, BTD on request in select frames.
Paint & shade	Standard Motor
	Main body: Shade RAL 1020
	Fan cover: Shade 592 of IS 5 International orange
Bearing type and Greasing facility	Sealed Bearings grease lubricated for life up to 225 frame and open bearings with online greasing facility in 250 and above frames.

Rerolling Mill Duty Motor

FEATURES	VALUES/ STANDARDS
Ambient Temperature	0 to +45°C
Altitude	Not exceeding 1000mtrs above mean sea level.
Atmosphere	Non corrosive & non hazardous
Relative Humidity	Up to 100%
Voltage	415V±10% (Can also be offered upto 650V)
Frequency	50Hz. ±5%
Combined Variation	Any combination of voltage and frequency

FEATURES	VALUES/ STANDARDS
Starting	Stator Rotor Starter/Liquid Rotor Starter
Permissible starts/hr.	2 Hot Or 3 Cold or 4 Equally spread
Loading at reduced volts	These motors are designed to run at 75% of rated supply voltage for a duration of five minutes.
Insulation / temp.rise	Class F/F
Temp rise Stator/Rotor	Class B/F
Direction of rotation	Bi-directional
No. Of leads	TR 5&6 > ST: 6 and RT: 3 Rest 3 / 3
Degree of protection	IP23
Method of cooling	IC01
T.box position	Left hand side when viewed from non-drive end, reversible assembly at site is not possible.
Terminal box arrangement	For KCW 450 & 500: Stator – 43506201, Rotor – 43521599. For KCW 560: Stator – 41102205, Rotor – 43506101. Terminal box rotatable through 3600 in steps of 180° (i.e cable entry possible from top or buttom)
Bearing life(90% survival basis)	Lithium based grease to “Grade 3” as per IS: 7623 for 4 pole & above motors.
Lubricant	Direct drives: 40,000 working hours.(Based on 90% survival life)
Vibration	Normal class as per IS: 12075.
Noise	As per IS: 12065.
Shaft extension.	Single cylindrical extension as per IS: 1231.
Body material	Mild Steel
T.box material	Mild Steel
Fan material	Mild Steel
Accessories	Refer to Kirloskar Electric engineering department.
Paint & shade	Epoxy “RAL BLUE” to shade plate K-102
Bearing type and Greasing facility	Antifriction rolling contact (Ball & Roller) Online greasing facility for all frames

Power Distribution Transformers

160 kVA to 2500 kVA, up to 33 kV Class

Kirloskar Transformers are designed and tested to the following standards:

The company is capable of manufacturing transformers to any other standards as per customers’/consultants’ requirements.