Greenlee CMPL-100 Manual De Instrucciones página 16

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Typical Measurements (cont'd)
Three-Phase Three-Wire Measurements:
True Power, Power Factor and Apparent Power Measurement
Notes:
• The + sign on the jaw must face the power source.
• COM connection (black lead) should remain connected to the same phase during both
measurements.
• A positive (+) PF indicates an inductive load. A negative (–) PF indicates a capacitive load.
Power factor value is correct for balanced loads only.
• Both power measurements may be positive, or one may be negative. Make sure all
connections are correct to obtain proper measurements.
Three-Phase Three-Wire Balanced Loads
W = W + W
3Ø3W RS TS
KVA = 3 (KVA
3Ø3W RS
KVAR = [KVA
3Ø3W 3Ø3W
PF = KW
3Ø3W 3Ø3W
KVA
3Ø3W
16
)
2 2
] – [KW ]
3Ø3W