Submersible motor pumps (100 mm)
Sr. no. Description Page no.
1 General 1
1.1 Safety of pumping unit 1
1.1.1 Checks & Safety of pumping unit 1
1.1.2 Instructions on unit (Printed matter) 1
1.1.3 For unauthorized spare part and modifications 1
1.1.4 For unauthorized modes of operation 1
1.1.5 Water characteristics 1
1.2 Description of Product 1
1.2.1 Designation (example) of pump 1
1.2.2 Designation (example) of motor 1
2 Installation 1
2.1 Installation and operational accessories 1
2.2 Motor preparations 1
2.2.1 Motor fill 1
2.2.2 Insulation resistance (IR) 2
2.2.3 Extended Cable connection 2
2.2.3.1 Selection of Cable 2
2.2.4 Coupling of pump and motor 2
2.3 Typical installation at site 3
2.3.1 Vertical installation 3
2.3.2 Horizontal Installation (e.g. in tank or pit) 3
2.3.3 Plastic / Flexible Rubber riser piping instead
of normal GI riser piping 3
2.3.4 Installation of water level guard 4
2.3.5 Protection against electric shock 4
2.3.6 Fixing the power supply cable to the riser pipe 4
2.3.7 Verification of power line with respect to
motor design 4
2.3.8 Trip circuit for over current 4
2.4 Starting mode 4
2.4.1 For single-phase motor 4
2.4.2 For three-phase motor 5
3 Commissioning and start up 5
3.1 Verification of rated current 5
3.2 Switching ON of mains 5
3.3 Checking the direction of rotation 5
3.4 Discharge valve position during initial start-up 5
3.5 Operation against a closed discharge valve 5
3.6 Operation against a throttled discharge valve 5
3.7 Operating limits of pump 5
3.8 Switching frequency 5
3.9 Interruptions / Shutdown periods 6
4 UMT (S) 100 motors 6
4.1 The motor is hermetically sealed induction motor 6
4.2 Connecting the motor 6
4.2.1 Starter panel 6
5 Maintenance 7
5.1 Storage 7
6 Services 7
7 Recommended stock of spare parts for
2 years of continuous operation 7
Contents
Sr. no. Description Page no.
8 Trouble shooting 8
8.1 Motor 8
8.2 Pump 9
9 Schematic Cross-sectional Drawings 10
9.1 Pump - CORA 100 (Radial flow) 10
9.2 Pump - CORA 18C (Mix flow) 11
9.3 Pump - CORA 2AH, 3AH & 3A (Radial flow) 12
9.4 Motor - UMA 100 13
9.5 Motor - UMA I 100 & UMA I (S) 100 14
9.6 Motor - UMT (S) 100 15
9.7 Motor - XUMA (S) 100 16
Annexure I - Environment Protection -
Product Disposal after useful life 17
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