Current Transformer - gefran 400 User Manual

1 2
152050 9640
50 / 0.05 A
4 30 4
Hole for 2.9 x 9 self-
threading screws
• RS232 / TTL interface cable for configuration of GEFRAN instruments
N.B.: The RS232 interface for configuration from PC is supplied along with the programming software.
Connect with the instrument powered and with inputs and outputs not connected.
7 • ACCESSORIES

• Current transformer

5,5 27 5,5 2
1 2
In
8 8
38 20
• ORDER CODE
COD. WSK- 0 - 0 - 0
These transformers are used to measure currents of 50 ÷ 60Hz from 25A to 600A
(nominal primary current). The peculiar characteristic of these transformers is the high
number of secondary turns. This provides a very low secondary current, suitable for an
electronic measurement circuit. The secondary current may be detected as voltage on a
resistor.
CODE Ip / Is Ø Secondary
Wire
TA/152 025 25 / 0.05A 0.16 mm
TA/152 050 50 / 0.05A 0.18 mm
• ORDER CODE
COD. 330200
COD. 330201
Interface Cable + CD
Winstrum
16
n OUTPUTS Ru Vu
40 Ω
n = 500 1 - 2 2 Vac
1-2
80 Ω
n = 1000 1 - 2 4 Vac
1-2
IN = 50Aac
OUT = 50mAac
IN = 25Aac
OUT = 50mAac
ACCURACY
2.0 %
1.0 %