Operation
59
RCMS460-490_D00067_03_M_XXEN/12.2017
1. Factor (for measuring current transformers)
Setting of a factor to adapt the RCMS… to connected measuring current
transformers. The following factor setting ranges are available depending on
the CT type and the application. When the channel is disabled, this setting
menu has no function (display: --).
Select:
*1 For Bender measuring current transformers (W…, WR…,
WS…, WF…, W…AB).
*1 … *250 For measuring current transformers with a different transfor-
mation ratio (e.g. if third-party measuring current transform-
ers are connected via a Bender measuring current
transformer).
/2 … /10 If the conductor to be monitored is wound through the meas-
uring current transformer several times in order to amplify
the signal.
Examples for the factor determination
X = transformation ratio, N = number of turns through the measuring current
transformer (wire up)
Example 1: Bender measuring current transformers with a
transformation ratio of 600/1
Factory setting:
Factor: *1, CT monitoring: on
If the measuring channel settings only differ slightly, we
recommend to proceed as follows:
- first set all the measuring channels (1…12) to the same
value
- then modify the setting of an individual measuring channel.
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