Appendix D System Components; External Current Sensors; Cs04-A11 Current Sensor - Eaton Powerware 3G System SC200 Installation And Operation Manual

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A p p e n d i x D
System Components

External Current Sensors

CS04-A11 current sensor

Using the CS04 Current Sensor Extension PCB
The CS04 current sensor extension PCB increases the distance between the two pickup points
of the CS04-A11 current sensor. Use the CS04 current sensor extension PCB if:
measuring current flow in very large bus bars, or
•
the required gain of the current sensor is greater than 40.
•
Current Sensor Preparation
Step 1 – Calculate the required gain of the CS04 current sensor
Current rating:
Mounting:
Current sense signal:
Communication cable:
Extension PCB:
Busbar material:
Gain = - Constant x (CSA / I
Where: CSA
I
MAX
Constant
Copyright © 2005-2007 Eaton Corporation. All Rights Reserved.
IPN 997-00012-54A
System Components
> 500A
Screws (supplied) in the LIVE bus
60mV at maximum rated current
8m (26') RJ45 (supplied)
For measurement on very large busbars
Copper or Aluminum
)
MAX
= Cross sectional area of the bus bar (mm²)
= Maximum expected current through the bus bar (A)
Ω
= 68.24V mm (for copper bus bars)
. -1. -2
July 2007
Appendix D
CS04 Current Sensor Extension PCB
(optional)
Current Sensor Pickup Contacts
Input inductor
Potentiometer for fine-tuning the Current
Sensor Gain
RJ45 Current Sense Signal Output (XU1)
– to supervisory module (via intermediate
current sensor, if fitted)
RJ45 Current Sense Signal Input (XU2)
– from other current sensor (if fitted)
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