Dranetz hdpq xplorer User Manual

F-10
PQ Parameter Calculations, continued
Calculations
(continued)
Description Abbreviation
Wiring Configuration
Formula
Units Precision
Total Current
Even Harmonic
Distortion
Normalized to the
fundamental
HIehd-a All
= *100
Per 61000-4-7
%+/- 5%
HIehd-b
HIehd-c
HIehd-d
Telephone
Influence Factor,
normalized to
Fundamental
HVtiffund-a All
TIF =
where:
X
fund
= Total RMS of
fund
X
f
= single frequency
RMS at frequency f
W
f
= Single frequency
weighing factor at fre-
quency f
Per IEEE 519/D7
1990 covers weigh-
ing factors up to 5
KHz
None +/- 1%
HVtiffund-b
HVtiffund-c
HVtiffund-d
Telephone
Influence Factor,
normalized to
RMS of input
HVtifrms-a All
TIF =
where:
X = RMS of channel
X
f
= single frequency
RMS at frequency f
W
f
= single fre-
quency weighing fac-
tor at frequency f
Per IEEE 519/D7
1990 covers weigh-
ing factors up to 5
KHz
None +/- 1%
HVtifrms-b
HVtifrms-c
HVtifrms-d
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Dranetz hdpq xplorer Specifications

General

Brand	Dranetz
Model	hdpq xplorer
Category	Measuring Instruments
Language	English