Circutor MDC-4, Инструкция по эксплуатации

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4.- OPERATION
4�1�- OPERATING PRINCIPLE
The MDC-4 has been designed to control the maximum demand of an installation.
The unit is equipped with a power analyzer that measures electrical parameters at the connection
point.
The unit calculates the maximum demand by scrolling window, do not need a sync pulse.
Depending on the unit's configuration and bearing in mind the calculated maximum demand, the unit
connects and disconnects the installation's electrical loads (which should not be priority loads) in order
to avoid exceeding the configured maximum power. Load connection or disconnection depends on the
instantaneous level of maximum demand. This system proceeds to disconnect the loads in accordance
with the % maximum demand value measured.
The load control by level ensures that the user does not exceed the contracted power, which generally
implies having to pay high penalties. At the same time, it enables adjusting the contract to the real
power each installation needs and managing the punctual disconnection of some non-priority loads,
which also results in important power savings in the electricity bill.
The unit is equipped with relay outputs for the management of up to 4 electrical loads or load groups.
Example: Let's take an installation such as that shown in
Figure 5
, in which the level of each of the
output relays has been programmed as follows:
OUT1 : 70% of the contracted power.
OUT2 : 80% of the contracted power.
OUT3 : 90% of the contracted power.
OUT4 : 95% of the contracted power.
Figure 5: MDC-4 installation�
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MDC-4
Instruction Manual