Overexcitation - GE G60 Instruction Manual

9.1 SETTING EXAMPLE
This protection should be set to coordinate with the manufacturers excitation capability curves. For example system, the
combined Generator/GSU limit curve is shown below:
Program the Volts/Hz 1 element with an inverse characteristic (curve A), a pickup of 1.05, and a TDM of 40. Program the
Volts/Hz 2 element with a definite time characteristic, a pickup of 1.23, and a time delay of 2 seconds. Both elements will
issue a trip. The Volts/Hz 1 pickup will be used to generate an alarm. Either source may be assigned in this example. Make
the following changes in EnerVista UR Setup or through the
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VOLTAGE ELEMENTS
9
9-10
1000
100
10
1
1 1.05 1.1 1.15
Combined Gen./GSU Limit Curve
Figure 9–4: GENERATOR/GSU LIMIT CURVE
menus:
VOLTS/HZ 1(2)
G60 Generator Management Relay
1.2 1.25 1.3 1.35
Volts/Hz (p.u.)
Volts/Hz 1
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SETTINGS GROUPED ELEMENTS
9 APPLICATION OF SETTINGS

9.1.12 OVEREXCITATION

1.4 1.45 1.5
Volts/Hz 2
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SETTING GROUP 1
GE Multilin
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