90 kw, 6-pole LT SCIM

Short Description:- 90 kw, 6-pole LT SCIM
Technical Specification:- Ambient Temparature:- 00050.000 Degree Centigrade
Duty Type:- S1
Enclosure:- IP55
Frame Size:- 315SM
Frequency:- 50 Hertz
Insulation Class:- F
Motor Capacity:- 00090.000 Kilo Watt
Mounting:- B3, Foot Mounted
Phase:- 3
Shaft Datail:- Single Ended
Synchronous Speed:- 1000 RPM
Type Of Cooling:- Fan Cooled IC411
Voltage:- 415 Volt(AC)
Additional Specification:-
1. Technical Particulars:-
1.1 Motor Type: Sq. cage Induction Motor
1.2 Motor Capacity (KW): 90
1.3 Rated Voltage (V): 415 volt +10% -15%
1.4 Supply Voltage Type: (3 Phase Voltage Supply ) 3-ph, 3 wire
1.5 Frequency (HZ): 50 HZ ±6%
1.6 Frame Size: 315SM
1.7 Speed(rpm): 990
1.8 Synchronous speed: 1000
1.9 Actual speed: 990
1.10 Duty Type:- S1
1.11 Type of Mounting: Foot mounted
1.12 Enclosure: IP-55
1.13 Insulation Class: F, temperature rise limited to class B
1.14 Ambient Temperature(°C): 50
1.15 Site condition: Ambient air may contain fair amount of conducting dust
1.16 Type of Bearing(As per existing)
1.17 Non Driving side:6316C3
1.18 Driving side: 6319C3
1.19 Type of Cooling: IC-411
1.20 Space Heater: Yes (2x 50W, 240V)
1.21 Thermistor in LV motors: Not applicable
2. Construction Particulars:
2.1 Sealed Bearing:- Motors of frame sizes below 250 shall be provided either with sealed type bearing on both sides or with re-greasing facility. Motor of frame sizes of 250 and above re-greasing facility shall be provided.
2.2 Position of Terminal box: Top
2.2.1 Terminal box can be rotated in step of 90° in each position to allow cable entry from any side. Detachable gland plates, non-magnetic type, suitable for 3Rx1Cx95 Cu flexible cable shall be supplied
2.2.2 Separate terminal box shall be provided for space heater/Thermistor. Space heater shall be wired up to auxiliary terminal box
2.2.3 TB Fault Level - 50kA/ 1 sec
3. Characteristic Curve: Motors shall be supplied with the following characteristics curves:-
a) Torque speed curve
b) Thermal capability curve Hot/cold
c) Load Vs Efficiency curves
d) Current Vs speed curve
e) Negative phase sequence withstand curve
f) G A (General Arrangement drawing) of the motor
4. Routine Test: The following routine test shall be carried out at manufacturer side and all certificate to be supplied along with motor as per IS 325:1996 clause 22.3.2
1. Insulation resistance test
2. Measurement of resistance of windings of stator and wound rotor;
3. No load test
4. Locked rotor readings of voltage, current and power input at a suitable reduced voltage
5. Reduced voltage running up test (for squirrel cage motors);
6. Open circuit voltage ratio of stator and rotor windings (for slipring motors);
7. High voltage test
5. Marking: A legible and indelibly marked rating plate of Stainless Steel shall be provided giving the following information:
1. Type and frame size
2. Capacity in kW at 50 degC ambient temperature
3. Serial number
4. Voltage
5. Current
6. Frequency
7. RPM
8. winding connection
9. Weight of motor in kg
10. Weight of stator in kg
11. Weight of rotor in kg
12. GD2 value
13. p.f. at full load
14. Manufacturer's name
15. Year of manufacture
16. Bearing details
17. Frequency of lubrication with Qty and type of grease to be used
18. Degree of protection
19. Class of insulation
20. Duty
21. Efficiency
Others (specified as per original motor):
1. FLT - 868 Nm
2. Starting torque - 2.4 times of FLT
3. Pull Out Torque - 2.9 times of FLT
4. No. of starts (hot/cold) - 2/3
5. Effeciency Class - Eff 1
6. Locked Rotor Withstand Time - 26 sec (hot)
7. Locked Rotor Withstand Time - 54 sec (cold)
8. Motor Suitable for DOL start
9. Coupling - Tyre
Custom Clarification:- Item Description:- 90 kW, 6-pole LT SCIM
Function of the Item:- Motor for Fan
Material of Construction of the Item:- Cast iron body, Copper windings
Name of the Main Equipment where the Item is Used:- Hot Air Fan
Function of the Main Equipment & Location of the Main Equipment:- Fan, Kalinganagar Works, Tata Steel