Xylem MN 414 AC Submersible Pump Motors - Manual (Page 12)

Section 1
General Information
2−6 Installation & Operation MN414
WARNING: Surface temperatures of motor enclosures may reach temperatures which can cause discomfort
or injury to personnel accidentally coming into contact with hot surfaces. Protection should be
provided by the user to protect against accidental contact with hot surfaces. Failure to observe
this precaution could result in bodily injury.
WARNING: Do not touch electrical connections before you first ensure that power has been disconnected.
Electrical shock can cause serious or fatal injury. Only qualified personnel should attempt the
installation, operation and maintenance of this equipment.
WARNING: Disconnect all electrical power from the motor windings and accessory devices before
disassembly of the motor. Electrical shock can cause serious or fatal injury.
WARNING: Be sure the system is properly grounded before applying power. Do not apply AC power before
you ensure that all grounding instructions have been followed. Electrical shock can cause
serious or fatal injury. National Electrical Code and Local codes must be carefully followed.
Operation During operation, observe the motors performance. It should run smoothly with little noise.
Motor operation may stop for one of the following trip conditions:
1. If moisture infiltrates the motor, the moisture detector circuit will activate.
2. If the motor overheats, the Thermal Protection circuit will activate.
3. Other condition detected by motor starter (over current, overvoltage, etc. if equipped)
Unbalanced voltage or single−phase operation of poly phase motor may cause excessive heating and
ultimate failure. Only a slight unbalance of voltage applied to a poly phase motor will cause large
unbalanced currents and resultant overheating. Periodic checks of phase voltage, frequency and power
consumption of a motor (measured at the motor starter) while in operation are recommended; such
checks assure the correctness of frequency and voltage applied to the motor and yield an indication of the
load offered by the apparatus which the motor drives.
Comparisons of this data with previous no load and full−load power demands will give an indication of the
performance of the complete machine. Any serious deviations should be investigated and corrected.
If a problem with the motor occurs, contact your Baldor District Office for repair.
Should the lead connector assembly be damaged or the integrity of the encapsulation be in question, it is
required that a replacement lead connector assembly be ordered from Baldor, contact your Baldor District
Office. Renewal instructions will be provided with the replacement parts.