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IEEE 286

Recommended Practice for Measurement of Power Factor Tip-Up of Electric Machinery Stator Coil Insulation

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Organization: IEEE
Publication Date: 30 March 2000
Status: active
Page Count: 35
scope:

This recommended practice applies to stator coils or bars (half coils) of electric machinery operating at any voltage level. It usually applies to machines with a voltage rating of 6 kV and higher. Individual stator coils outside a core (uninstalled), individual stator coils installed in a core, and completely wound stators are covered in this recommended practice.

The tests apply to all coil insulation systems: re-impregnated coils, post impregnated coils (global impregnation), and fully-loaded (resin-rich) taped coils. This recommended practice is not applicable to non-impregnated individual coils.

The coil insulation under test is the major groundwall insulation that is external to the conductor structure. Only that part of the strand and turn insulation that is dielectrically in series with the groundwall insulation enters into the measurements. When testing individual coils and utilizing guard electrodes, only that part of the groundwall insulation under the low voltage electrode (outer electrode)enters into the measurement.

Document History

March 30, 2000
Recommended Practice for Measurement of Power Factor Tip-Up of Electric Machinery Stator Coil Insulation
This recommended practice applies to stator coils or bars (half coils) of electric machinery operating at any voltage level. It usually applies to machines with a voltage rating of 6 kV and higher....
March 30, 2000
Recommended Practice for Measurement of Power Factor Tip-Up of Electric Machinery Stator Coil Insulation
Foreword This power factor tip-up test for stator coils has been used by electric machinery manufacturers and users since the original standard was issued in 1968. The original versions discussed...
IEEE 286
March 30, 2000
Recommended Practice for Measurement of Power Factor Tip-Up of Electric Machinery Stator Coil Insulation
This recommended practice applies to stator coils or bars (half coils) of electric machinery operating at any voltage level. It usually applies to machines with a voltage rating of 6 kV and higher....
July 23, 1975
RECOMMENDED PRACTICE FOR MEASUREMENT OF POWER-FACTOR TIP-UP OF ROTATING MACHINERY STATOR COIL INSULATION
A description is not available for this item.
January 1, 1975
Recommended Practice for Measurement of Power-Factor Tip-Up of Rotating Machinery Stator Coil Insulation
The purpose of this recommended practice is to describe the power-factor tip-up of coil insulation and to establish preferred procedures for its measurement. This recommended practice applies to...
August 1, 1968
Recommended Practice for MEASUREMENT OF POWER-FACTOR TIP-UP OF ROTATING MACHINERY STATOR COIL INSULATION
The procedures described in this Recommended Practice are applicable to stator coils designed for use in rotating machinery which operates at a system voltage of 6600 volts or higher The coil...

References

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