Title

AC 3 Phase Squirrel Cage Induction Motor

Brief Introduction

YXKK series of ac 50 60 hz motor shall be designed to withstand without failure a short circuit of any kind at its terminals, while operating at rated load and 1,05 p.u. rated voltage, provided the maximum phase current is limited by external means to a value which does not exceed the maximum phase current obtained from a three-phase short circuit. 'Without failure' means that the generator shall not suffer damage that causes it to trip out of service, though some deformation of the stator winding might occur.

If it is agreed upon between purchaser and manufacturer that a sudden short-circuit test shall be made on a new generator, it shall be done after the full voltage dielectric acceptance test as described below.

A generator that is to be connected directly to the system shall have a 3-phase short circuit applied at its terminals when excited to rated voltage on no-load. For a generator that will be connected to the system through its own transformer or reactor, usually by an isolated phase bus, the test at the terminals shall be carried out at reduced voltage, agreed upon between the purchaser and the manufacturer, in order to produce the same stator current as would result in service from a three-phase short circuit applied at the high voltage terminals of the transformer.

Main Technical Parameters

Outline Dimensions

Motor Parameters