Configuration Example - VAMP 140 Operation And Configuration Instructions

VAMP Ltd
7.1.2.
VM140.EN011
Overcurrent and earth-fault relay
Operation and Configuration
7. Selection of the communication protocol and setting of the
communication parameters (COM menu), see Chapter 5.8.
8. Other required parameters, for example the DI input, mA
output and circuit breaker failure protection.

Configuration example

The following example illustrates the calculation and scaling of
setting values and the grouping of output relays in a typical
protection configuration. The values given in the example are
to be regarded as guidelines only.
Example:
The example is based on the technical application drawing of
Chapter 3, Figure 3.1-1 in the technical description.
In the application the following functions and stages are used:
Three-stage overcurrent protection (I>, t>; I>>, t>> and
•
I>>>, t>>>)
Three-stage residual current protection (Io>, t>, Io>, t>>
•
and Io>>>, t>>>)
The above functions are enabled via the ENABLE menu by
selecting the "On" in the ENABLE menu, see Chapter 5.2. the
functions not to be included are disabled by selecting the "Off"
value.
1 Output data:
Given within the parenthesis are the configuration menus
where the settings are done.
Transforming ratios of measurement transformers
Current transformer (CT)
(SCALING)
Residual current transformer (CTo)
(SCALING)
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VAMP 140
CTprim 600 A
CTsec 5 A
CToprim 100 A
CTosec 5 A
Ioinp 5 A
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