VAMP 135
Over-, under-, residual voltage and
frequency relay
Operation and configuration
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VM135.EN008
9.
Selection of the communication protocol and setting of the
communication parameters (COM menu), see Chapter 5.8.
10.
Other required parameters, for example the DI input, mA
output and circuit breaker failure protection.
7.1.2.
Configuration examples
The following example illustrates the calculation and scaling of
setting values and the grouping of output relays in a typical
protection configuration. The numerical 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, in the technical description.
In the application the following functions and stages are used:
•
Three-stage overvoltage protection (U>, t>; U>>, t>> and
U>>>, t>>>)
•
Three-stage undervoltage protection (U<, t<; U<<, t<< and
U<<<, t<<<)
•
Two-stage residual voltage protection (Uo>, to> and Uo>,
to>>)
•
Two-stage overfrequency protection (f>, t> and f>>, t>>)
•
Two-stage underfrequency protection (f<, t< and f<<, t<<)
The above functions are enabled via the ENABLE menu by
selecting the "On" in the Enable U, Enable Uo and Enable f
display, see Chapter 5.2, the functions not to be included are
disabled by selecting the “Off” value.
1 Output data:
Give within the parenthesis are the configuration menus where
the settings are done.
Selection of protection mode
Selection of the protection mode
Line+Uo
(SCALING/U mode:)
Transforming ratios of measurement transformers
Voltage transformers (VT)
Unom
2000 V
(SCALING)
Usec
100 V
Residual voltage transformer (VT)
(Uo SCALING)
Uosec
100 V
