Presented to the RC 03/4/03 1

Generator Reactive Capabiltiy

VerificationBy

Component Testing

Presented to the RC 03/4/03 2

Problem – Contingency Capability

In some special cases, the full VAR capability of a generator is needed for contingency conditions, not normal conditions.

In these cases, creating the conditions that would require the generator’s full VAR output would be dangerous.

The ISO and Satellites will intentionally not create such conditions.

Presented to the RC 03/4/03 3

Normal Conditions

1160 850 200 200

AVR: 357 kV AVR: 357 kV

357 kV

Presented to the RC 03/4/03 4

VAR Test Conditions

1160 850 600 200

VR-manual: 600 MVAR

AVR: 357 kV

357 kV

Presented to the RC 03/4/03 5

VAR Test Conditions:Post Contingency

1160 0 600 0 VR-manual: 600 MVAR

AVR: ----

370 kV

Presented to the RC 03/4/03 6

Solution – Component Certification

Provide these special case generators with an alternative to actual VAR testing.

One alternative could be to require certification of the major components of the generator’s VAR capability:

Synchronous machine Cooling system Excitation system Protection systems …

Presented to the RC 03/4/03 7

RequirementsRigorous

Timely

Subject to audit

Accountable Professional Engineers stamp?

Presented to the RC 03/4/03 8

Next StepIdentify Special Cases

Develop Component Test Requirements

Presented to the RC 03/4/03 9

Questions ?