Description
This is a description of a W Series Motor, which is a wet type, water filled rewindable motor. The stator windings are of water proof synthetic film insulated copper winding wires. The motor features water lubricated thrust and journal bearings. The pre-filled level of water inside the motor is important. If any loss of volume is noticed, the motor should be refilled with clear, cold, pure, fresh, filtered water. The dynamically balanced rotors maintain uniform clearance thereby giving better efficiency and increase the life cycle of the water lubricated bush bearings. The thrust bearings are unique in that they create a wedge of water between the shoe and the disc, and thereby providing better water lubrication and increases the life cycle of the thrust bearings. The pressure equalizing rubber diaphragm is provided to guard the pressure and volume variations of the water inside the motor. The motor sealing are made by means of O rings. The shaft seals and sand guard prevents ingress of well water. sand and fiber particles into the motor. The motor needs a constant flow of water past its body to keep it at correct operating temperature. The motor should be set just below the level at which water enters the bore well. When this level is not ascertained, fit
10" Submersible Water Filled Rewindable Motors
Description
Available In Keyway & Spline
Motor power in kW
165
C.R.I. "W series" motors are deep well / bore hole rewindable submersible type, pre-filled with water, which acts as coolant and lubricant. These motors are available in three phase power supply and suitable for both normal & high temperature applications. Rotors are supported with bush and thrust bearings to withstand maximum axial and radial thrust loads. All mounting dimensions are in accordance with NEMA / International standards.
Specification
Nominal Diameter
10"
Series
Water Filled Rewindable Submersible Motors
Power Range kW
Three Phase : 81 185kW
Speed
2900 rpm
Versions
Three Phase : 380V 415V, 525V, 50Hz
Method of Starting
Direct On Line (DOL), Star Delta (SD)
Maximum Down Thrust Load
60000N
Type of Duty
S1 (Continuous)
Degree of Protection
IP 68
Class of Insulation
Y
Max.Temperature of Liquid
Standard 30?C , High Temperature 50?C
Minimum Cooling Flow Along the Motor
0.5 m/sec
Starts per Hour
12 Times
Available M.O.C
Type b, S, T
Features
High efficiency
Water lubricated rewindable motor
Corrosion resistant stainless steel motor body
Extremely hardwearing and water lubricated bearings
Special design for hot water
Can be easily dismantled and repaired
Application
Water supply
Industries
Agriculture
Commercial buildings
Pressure boosting
Sprinkler and pivot irrigation system
Construction & mining De-watering
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