Power transducers meters

TECHNICAL DATA

Measuring ranges acc. the series	1; 1,2; 1,5; 2; 2,5; 3; 4; 5; 6; 8 or the decimal multiplication of one of these numbers
Input voltage	100/√3 (x/100/√3); 100 (x/100), 133, 230, 280, 400, 500, 690 V
Input current	1 A (X/1A) 5 A (X/5A)
Active power factor	cosφ 0,5poj. i 0,5ind.
Reactive power factor	sinφ 0,5poj.. i 0,5ind.
Accuracy class	1,5

Rated operating conditions:

- ambient temperature	5...23...400C
- on request, tropical execution	5...35...550C
- relative humidity	25... 85%
- frequency of the input quantities	acc. order (table 1)
- working position	acc. order  5° (table 2)
- external magnetic field	≤400A/m
Additional errors	acc. EN 60051-1 standard
Power consumption:
- voltage circuit	≤3 [VA]
- current circuit	≤0,25 [VA]
Protection Grade acc. to EN60529:
Front protection grade:
	IP 50 for PA39 meters
	IP 65 for PA39 meters (on request):
IP20 terminal protection (with a terminal protection cover)
Electromagnetic compatibility:
- emission	acc. EN 61000-6-4 standard
- immunity	acc. EN 61000-6-2 standard
The meter fulfils CE mark requirements.
Safety requirements acc. EN 61010-1:
- installation category	III
- level of pollution	2
- working voltage in relation to the earth	600 V a.c.
Weight	400g
Accessories	400 g
Equipment
We deliver with the meter:
- screw holders (IP50 option)	2 pcs
- screw holders (IP65 option)	4 pcs
- terminal protection cover	1 pc
- user’s manual	1 pc
- guarantee certificate	1 pc

CHOICE OF MEASURING RANGE
1. Calculate the power from the formulas:
P = U_n X I_n for single-phase networks
P = √3 X U_n X I_n for three-phase networks
where::
U_n - network rated voltage:
• for three-phase networks - phase-to-phase voltage,
• when connected through transformers-primary rated voltage.
I_n - rated current
• 5 A or 1 A,
• when connected through transformers-primary rated voltage.
2. Round the calculated power value to the nearest value from the given sequence of numbers for the measuring range.
3. Example of measuring range choice
Three-phase network; rated values of transformers: 15 000/100 V i 400/5 A
P = √3 ´ 15 000 V ´ 400 A = 10,39 MW (Mvar)
Selected measuring range: 10 MW (Mvar)

Fig.1. PA39 meter outline drawing.

One should prepare in the panel a hole at dimensions: 92^+0.8 x 92^+0.8 mm.
The thickness of the material of which the panel is made, cannot exceed 15 mm.
The meter is fixed in the panel by two screw holders situated on arbitrary opposite corners of the case.

 

ORDERING WAY
In any order one must specify the name and the ordering code of the power meter using the tables: 1, 2, 3, and 4.
Order example: PA39 - H - F - O - L5 - 0 - O - 00 - 8, means:
H - Reactive PA39 power meter adapted to a three-phase four-wire symmetrically loaded network.
F - Network rated voltage: 3000 V (from table 3).
O - Frequency of the input voltage: 50 Hz (from table 1).
L5 - Network rated current: 300 A (from table 3).
0 - Unidirectional power flow.
O - Working position: C3, vertical (from table 2).
00 - Catalogue version.
8 - without additional requirements concerning acceptance tests.
This power meter is destined to co-operate with 300 A/5 A transformers and a 3000 V/100/3 V voltage transformers.
Note: concerning casing protection grade IP. When ordering, please precise the required grade option: IP50 or IP65