Mains analysis, 400 series, En - 57 – HT instruments SPEED418 User Manual

Page 58

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400

Series

EN - 57

8. MAINS ANALYSIS

8.1. PWR:

REAL TIME MEASUREMENT OF THE MAINS PARAMETERS

This function allows measuring the voltage of the electrical mains and of the relevant
harmonics. Using an external clamp, it is also possible to measure the current and the
relevant harmonics as well as other electrical parameters such as power, power factor, etc.
The following operating modes are available:

PAR

measurement of electrical parameters such as current, voltage, power, power
factor, etc.

HRM V measurement of voltage harmonics
HRM I

measurement of current harmonics

Fig. 32: Instrument connection for single-phase, double-phase or three-phase measurements

1.

Press the MENU key, move the cursor to PWR
in the main menu by means of the arrow keys
(,) and confirm with ENTER. The
instrument measures in real time and displays,
in a screen similar to the one reported here to
the side, the instant value of the input
parameters, and RUN appears on the right
bottom part of the display

P W R

V

= 230.8 V

I = 27.2

A

f = 50.0

Hz

P

= 5.09 kW

S

= 6.28 kVA

Q

= 2.14 kVAR

pf

=

0.94 i

dpf

=

0.94 i

PAR 100A 4005 RUN

Func

FS TYPE

2.

Use the ,  keys to select the parameter to be modified, and the ,  keys
to modify the parameter value.
It is not necessary to confirm the selection with ENTER

.

Func

The virtual Func key allows setting the measuring mode of the

instrument, which may be: PAR, HRM V, HRM I

FS

The virtual FS key, active only when the PAR mode has been
selected with the Func key, allows selecting the clamp full scale
among the values: 1A, 10A, 30A, 100A, 200A, 300A, 400A,
1000A, 2000A, 3000A

. The changes made to the FS value will also

be applied to the LEAK function (§ 7.2). If the FS 100A has been
set, it's possible to select the clamp model: Type = "4005"
(HT4005) or "STD" (Standard clamp).

PAG

The virtual FS key, active only when the HRM V or the HRM I
mode has been selected with the Func key, allows scrolling down
the bar graph of the harmonics window by window. Following
options are available: h02÷h08, h09÷h15, h16÷h22, h23÷h29,
h30÷h36, h37÷h43, h44чh50

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