DC Buyer's Guide

Accessories and Modifications CD180AT through CD6900

ITEM

DESCRIPTION

21 PUMP MOTORS DC Motors with armature voltages from 105-130 Volts in most cases are used in pump applications. These are special motors built to pump manufacturer specifications. Because of the low armature voltage these motors have special electrical designs and in many cases frame sizes are larger than standard. If a model number is not available, a request for motors in this voltage range must be accompanied by the following information. Pump motors operated from DC potential busses or batteries will show significant speed variations from nominal when the motor is cold and when the applied voltage varies below nominal. Typically Motor RPM will be lower than nameplate speed (approx. 10-15%) when cold and increase to nameplate RPM as main field reaches operating temperature. To reduce the cold to hot speed variations, the shunt fields should be energized at 50-70% of rated voltage to stabilize. However, for ‘emergency’ pump motor applications, where field pre-heating may not be feasible, the pump capacity must be sized to the cold start RPM. Also, at lower than nominal voltage the motor will run slower than nameplate RPM, while conversely the motor will run higher than nameplate RPM when voltage is higher than nominal. For Pump Motor quotations, contact Wolong . 22 SEALS, DRIVE END SHAFT (horizontal or vertical with shaft up or down) GE offers the following shaft seals: Lip type rubbing seals (which provide protection against oil mist or splash), labyrinth seals (which provide protection against fine abrasive dust), and Inpro ® seals (which provide protection

Modifications Motor Pricing General Information

from liquids, solids, steam, and slurries of all types). Price addition (per seal) is as follows: Note: For availability and pricing of commutator end shaft seals, refer to Wolong .

Accessories and

List Price Addition

Motor Frame Size CD180AT-CD210AT CD250AT-CD320AT CD360AT-CD5010AY

Lip Seal

Labyrinth Seal

Inpro Seal Not Available

$298 $420 $596

$298 $490 $838

$2442 $3736 $6900 $8912

CD6000-CD6200 CD6700-CD6900

Not Available Not Available

$1138 $1394

Inpro ® is a registered trademark of Inpro/Seal Inc., Rock Island, Illinois

Information Outline Dimensions

Application

Other Information

3.18

www.gemotorswolong.com GEP387-EN 07/19 Prices and data subject to change without notice.