Page 259 - Wagp_InterfaceElectronic_Volume4_2015_US.pdf

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Recommended conductor sizes and lengths: 789-652

Conductor Conductor length in m
size
in mm 2 1 2 3 5 10 15 20 25

0.14 0.26 0.51 0.77 1.28 2.55 3.83 5.10 6.38
0.34 0.11 0.21 0.32 0.53 1.05 1.58 2.10 2.63

0.5 0.07 0.14 0.21 0.36 0.71 1.07 1.43 1.79
0.75 0.05 0.10 0.14 0.24 0.48 0.71 0.95 1.19
1 0.04 0.07 0.11 0.18 0.36 0.54 0.71 0.89

1.25 0.03 0.06 0.09 0.14 0.29 0.43 0.57 0.71
4
1.5 0.02 0.05 0.07 0.12 0.24 0.36 0.48 0.60

2.5 0.01 0.03 0.04 0.07 0.14 0.21 0.29 0.36
Conductor resistance in Ω (total value for both outgoing and return conductors)
Recommendation: Select the conductor size so that the conductor resistance is ≤ 0.3 Ω.

Application example:

IL1 IL2 IL3 IN
OUT
789-652
Rogowski - Current Transducer
U S
POWER IN
24 V OV U1 GND U2 GND U3 GND
L1 L2 L3

-US -US -US
+US +US +US
8 ETHERNET LINK 1 A 01 02 A 13 14 A 13 14 A
12345678 ACT B C B C B C B C
ON ACT D D D D
LINK 2
1 ON MS 24V 0V AI1 AI2 L1 IL1 (Conductor length < 30 m)
NS
0: WBM
255: DHCP I/O
USR
+ + U V 1 U V 2 L2 IL2
SD
750-880
— — 0V 0V L3 IL3
X1
S S N N
X2
750-470 750-493 750-600
000-002