Three phase unbalance, Caution, Rule of thumb – Xylem GSSERVICE R2 Service Manual Submersible Pumps & Jet Pumps User Manual
Page 90: Supply starter motor
88
L1
L2
L3
T1
T2
T3
1st Hookup
Starter
L1
L2
L3
T3
T1
T2
2nd Hookup
Supply
Starter
L1
L2
L3
T2
T3
T1
3rd Hookup
Starter
Motor
!
CAUTION
To prevent changing motor rotation, the
motor leads should be reordered in the
same direction, see example on page 51.
RULE OF THUMB
If the unbalance moves with the motor
leads the unbalance is caused by the
motor, wet splice, or damaged cable. If
the unbalance remains with the terminals
the unbalance is in the power supply
.
For the best protection, we recommend no more
than a 5% current deviation from average current.
Current readings in amps should be checked on
each leg using the three possible hookups.
L1
L2
L3
T1
T2
T3
Supply
Starter
Motor
L
1
L
2
L
3
T
1
T
2
T
3
THREE PHASE UNBALANCE
See also other documents in the category Xylem Pumps:
- 19-001-290B Residential Fire Pump Package (10 pages)
- 1580 Series In-Line Mounted Centrifugal Fire Pumps AC2516 (8 pages)
- A-C Fire Pump Temporary Storage of Equipment – GI-2 (1 page)
- 8100 Series Centrifugal Pumps AC2515 REV.C (63 pages)
- 1580 Series In-Line Mounted Centrifugal Fire Pumps AC2516 REV.B (8 pages)
- 8200 Series Base Mounted Centrifugal Fire Pumps AC2675 REV.C (38 pages)
- A-C Fire Pump – Vertical Turbine Fire Pump AC8499 (28 pages)
- 9100 Series Base Mounted Centrifugal Fire Pumps AC8585 REV.C (37 pages)
- 2000 Series Frame Mounted Pumps AC8652 REV.C (20 pages)
- 19 001 200 R2 SILENT STORM VFD Pumping System (38 pages)
- 19 001 251 R3 Floboy VFD Pumping System (40 pages)
- 19 001 300 R2 Silent Storm VFD Pumping System OMRON Touch Screen Display Manual (162 pages)
- 19 001 351R2 PACE Integrated Pump Controller Human Machine Interface (HMI) for the Silent Storm VFD Pumping System – User Guide (28 pages)
- 19-001-350R2 PACE Integrated Pump Controller Human Machine Interface (HMI) for the Silent Storm VFD Pumping System – Technician Guide (54 pages)
- 6 71 075 004A Autocirc Instant Hot Water Pump E1 BCANCT1W 06 (8 pages)
- 6 71 075 108A ecocirc E Series E10 Bronze Pumps (4 pages)
- 6 71 075 109A Autocirc Instant Hot Water Pump Model ACT E10 (8 pages)
- 6 71 075 145B ACT-4 Potable Hot Water Recirculating Systems (28 pages)
- A 00 091 376A Series E1 and E3 Instant Hot Water Recirculating Systems (6 pages)
- A 00 091 392A Automatic Plug-In Timer for E1_E3 Circulators (2 pages)
- IM 17A ecocirc D5 Vario, Strong and Solar (4 pages)
- IM 23A Electronic Cooling Pump Series DDC (4 pages)
- BMAID R4 (52 pages)
- IM116 R04 4 Submersible Pumps (68 pages)
- IM117 R01 5 and Larger Submersible Pump (48 pages)
- IM118 R03 Sump Pumps (40 pages)
- IM125 R02 RJA & RJDS Quick Set (48 pages)
- IM126R02 E-Z Prime Jet Pump Shallow Well Jet Pump (36 pages)
- IM132 R02 RSPA (FSPA) & RJSP Self-Priming Centrifugal Pumps (28 pages)
- IM136 R01 SM Centrifugal Pump (20 pages)
- IM137 R02 GPC Engine Drive Self-Priming Pump (16 pages)
- IM138 R01 HMC Close-Coupled Centrifugal Pump (16 pages)
- IM152R0 Vertical Sump Pump (OBSOLETE) (12 pages)
- IM162 R03 Dewatering Pumps Contractor Dewatering Pump (20 pages)
- IM163 R01 Wastewater Pumps Dewatering, Effluent and Sewage (36 pages)
- IM164 R01 Single Phase, Single Seal Grinder Pump (36 pages)
- IM186R03 Battery Backup Sump Pump (24 pages)
- IM188 R01 SPM_SPH Self-Priming Pumps (24 pages)
- 10 001 247 R2 TechnoForce Package System (34 pages)
- AC2008B Series HSC3 Base Mounted Centrifugal Pump (22 pages)
- AC8584C Series HSCS Base Mounted Centrifugal Pumps (31 pages)
- IM194 R02 GRINDER PUMPS 1 AND 3 11?4 DISCHARGE (36 pages)
- IM196 R01 Explosion Proof Wastewater Pumps Listed Class 1, Groups C and D Hazardous Locations (32 pages)
- IM228 R03 Model e-SV (esv) (64 pages)
- Goulds Water Technology Model e-SV, Vertical Multi-Stage Pumps Repair Stack (4 pages)