Controllers MCE06ADV – MCE12ADV
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Program 1:2:2. All capacitor stages from the second and up have a rated power (kvar) which is twice the
rated power of first stage. For instance, a 5-stage unit of 180 kvar would be formed by a first stage of 20
kvar and 4 equal stages of 40 kvar, and would be described as a unit of (20 + 4 x 40) kvar.
Program 1:2:4. The rated power of the second stage is twice the rated power of the first stage and the
rated power of third stage and up is 4 times the power of the first stage. For instance, a 5-stage unit of
300 kvar would be formed by a first stage of 20 kvar, a second stage of 40 kvar and 3 equal stages of 80
kvar, and would be described as a unit of (20 + 40 + 3 x 80) kvar.
Other switching programs. Other switching programs are also commonly available, like 1:2:2:4 or
1:1:2:2, etc. Abbreviated designation form, as can be deduced from previous cases, consists of a
sequence of numbers giving the relationship between the different stage powers (kvar), and the first
stage power, which value is taken as unit (1 ). The successive stages will be designated by 1, or 2 or 4,
etc. meaning that the kvar ratio of such stages with regard to first stage are equal, twice, four times, etc.
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GENERAL CHARACTERISTICS
The power factor regulators, of types MCE06ADV and
MCE12ADV measure the cos
φ
(sometimes called
Displacement Power Factor, DPF) in a supply network
and control the connection and disconnection of power
capacitors in order to regulate such parameter.
The difference between the two types is the number of
output relays, which determines the number of stages
that they can control.
Type
Maximum Nr of
output relays
MCE06ADV
6 relay outputs
MCE12ADV
12 relay outputs
Among the most important features of this PF regulator series we can stand out the following:
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FCP regulation system, which minimizes the number of switching operations.
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Wide choice of switching programs: 1:1:1, 1:2:2, 1:2:4 , 1:1:2:2, etc. which allows the split up of
the total power into up to 31 steps in MCE06ADV
or up to 79 steps in MCE12ADV.
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Four quadrants control (see fig.2.1) , display of the connected stages, of cos
φ
and active and
reactive power signs (inductive
or capacitive
)
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LCD display screen with three seven segments characters plus 20 icons to sign up the different
possible working conditions.
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Regulator set-up with only three keys and without disconnecting the device from the supply.
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Multiple supply frequency range, either 50 or 60Hz
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Main electrical parameters displayed during RUN mode
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Easy panel mounting, without the need of tools.
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Front frame size (144 x 144 mm) according to DIN 43 700 (panel hole 138
+1
x 138
+1
mm)
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Measurement and power supply in one single input.
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Four quadrant regulation (suitable for installations importing or exporting energy)
Fig. 2.1.- Power signs in four quadrants measurements