Power Quality Analyzer Model 8335
81
Item
Function
U1, U2, U3
Absolute values of the voltages at fundamental frequency
V1, V2, V3
Absolute values of the voltages at fundamental frequency
A1, A2, A3
Absolute values of the current at fundamental frequency
φ
12
Phase displacement of phase 1 relative to phase 2
φ
23
Phase displacement of phase 2 relative to phase 3
φ
31
Phase displacement of phase 3 relative to phase 1
φ
VA
Phase displacement of voltage (V) relative to current (A)
Unb
Unbalance of line voltages
NOTE:
L2 and L3 display vector representations of the fundamentals of the phase-
to-neutral voltages and the currents of phases 2 and 3, respectively. They indicate
their associated quantities (modulus and phase of the current and phase-to-neu
-
tral voltage vectors of phases 2 and 3, respectively). The reference vector of the
representation (at 3 o’clock) is the current vector (A2 and A3, respectively).
5.4 Alarm Mode
This mode detects the type of alarm that you wish to monitor (Vah, Ah, Uh, Vh, Tan,
PF, DPF, VA, VAR, W, Athd, Uthd, Vthd, KF, Hz, Aunb, Vunb, Vrms, Acf, Ucf, Vcf,
PST, Arms Urms and Vrms – see Appendix B: Glossary of Terms).
All alarms recorded can be downloaded to a PC with DataView
®
software
(see
§
7). Up to 10,000 alarms can be captured.
5.4.1 Programming an Alarm
1. Press the Alarm mode button . The
Detection Schedule
screen will appear.
Figure 5-33
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