Energy" Function; Symbols - MARTINDALE VR2250 User Instruction Manual

8.7.

"ENERGY" FUNCTION

This function permits to display the values of the active powers, capacitive and inductive
reactive powers, power factor and cos ϕ . Furthermore, the instrument is able to measure
directly (see 8.7.2) the values of the energies and the values of the capacitive and
inductive reactive energies.

8.7.1. Symbols

The position ENERGY has only one working mode:
METER
This mode will be described in detail in the next paragraphs.
The symbols used are described below:
Symbol Description
P1 Active power
Q1 Reactive power
S1 Apparent power
pf1 Power factor
dpf1
cosϕ
Ea1 Active energy
Eri1 Inductive reactive Energy
Erc1 Capacitive reactive Energy
The symbols "i" and "c" stand for reactive powers (Q) and energies (Er) inductive and
capacitive respectively.
Tab. 4: Symbols used in the position ENERGY
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VR2250