Schweitzer Engineering Laboratories SEL-701 - Table 7.17 Power Measuring Accuracy Test Values, Delta Voltages

Date Code 20010719 701 Motor Protection Relay
Commissioning
Selected Functional Tests
7.21
Table 7.17 Pow er Measuring Acc uracy Test Values, Delta Voltages
Table 7.17 Power Measuring Accuracy Test Values, Delta Voltages
Applied Currents
and Voltages Real Power (kW)
Reactive
Power (kVar) Power Factor (pf)
PHROT = ABC
Ia = 2.5 A ∠–26°
Ib = 2.5 A ∠–146°
Ic = 2.5 A ∠94°
Vab = 120 V ∠30°
Vcb = 120 V ∠90°
Expected:
P = 0.4677 •
CTR • PTR
Measured:
Expected:
Q = 0.2286 •
CTR • PTR
Measured:
Expected:
pf = 0.90 lag
Measured:
PHROT = ACB
Ia = 2.5 A ∠–26°
Ib = 2.5 A ∠94°
Ic = 2.5 A ∠–146°
Vab = 120 V ∠–30°
Vcb = 120 V ∠–90°
Expected:
P = 0.4677 •
CTR • PTR
Measured:
Expected:
Q = 0.2286 •
CTR • PTR
Measured:
Expected:
pf = 0.90 lag
Measured: