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Automatic Power Factor Controller Type 1143
The
Syntron Automatic Power Factor Control Relay type 1143 is specially
designed to provide accurate and reliable control of power factor of
an electrical installation
1143
has microcontroller technology. This is a Syntron exclusive
trademarked as COSROBOTTM.
COSROBOTTM
technology evolved at Syntron specifically for use in APFCRs where
the problems of electrical noise, transients etc. are accentuated,
and normal microprocessor technology fails under such conditions.
COSROBOTTM
1143 is now more reliable and easier to troubleshoot. Operationally
the COSROBOTTM
APFCR 1143 is identical to the previous IC based version for
compatibility with older panels. Some features, not available with IC
based APFCRs, are provided additionally in 1143
Some users, with
peculiarly configured systems used to find it difficult to use
Syntron APFCRs with the Low Current Cutout set at 20%. Low Current
Cutout is now reduced to 5% to accommodate such systems.
Some users demand timing between
stages different from our standard. This modification is needed for
thyristor controlled capacitors, windmills etc. This timing can now
be factory set at a value from 0.2 seconds to 25 seconds.
The First In First Out sequence
now comes with built in software timers - one for each stage - so
that the APFCR waits only if the next needed capacitor is still
discharging, otherwise it is switched on immediately.
Any other sequence such as
1+2+2+….., 1+2+4+8+…etc. are also given, factory programmed as
per order.
There are two alarm conditions
that are directly displayed Current Low (the display reads 1uuu) and
Wrong Wiring (the display reads 2uuu). This condition is detected if
your wiring of the APFCR is wrong, and will persist till you
correctly wire the APFCR into the system.
A unique TEST function is incorporated the APFCR goes into
TEST MODE when the TEST push button is pressed. In this mode the
Microcontroller provides the display of 1.000. The APFCR can then be
tested as per procedure given in the User Manual, regardless of the
external conditions
Function
The
APFCR controls the power factor of the installation by giving signals
to switch on or off power factor correction capacitors. It should be
noted that this is only a Relay constituting the so to say 'brain' of
the system. It needs complete panels incorporating the capacitors
switching contactors, fuses, isolators etc. The Microcontrollers
performs all the necessary functions measuring settings, measuring
the power factor, detecting Low Current, detecting Wrong Wiring,
operating the logic, and operating the switching relays.
Specifications
Voltage:
400 415 440 V(specify one) three phase three wire 50Hz nominal.
110V three phase versions
available on request.
Current: Through
CT on the Main Incomer. 1 Amp or 5 Amp secondary.
Low Current
Cutout:Factory set at 5% (0.25 Amps for 5 Amps and 50mA for
1 Amp.) Display reads
1.uuu when the current
is too low.
Wrong
Connections:Three voltage wires and two wires from the CT on
the main incomer connect the APFCR in the electrical system. The
wiring must made Correctly. The APFCR switches off all stages and
displays 2.uuu to warn the operator. This condition persist till
correct connections are are made.
Meter: 4 digit
Digital Meter : Range : 0.000 lag 1.000 0.000 lead.
PF Setting Range:
0.75 Lag to 0.99 Lead.
Dead Band
Control: 4 deg. to 14 deg. Electrical.
Capacitor
Switching:
Standard Models are available for 4, 6, 8, 10, 12, 14 & 16
stages, with the sequence of First In First Out or First In Last Out.
(Specify one) other sequences on request.
Contact Rating
Each contact is rated for maxima of 230V, 5 Amps AC resistive
loads.
Dimensions:Front Bezel : 144mm x 144 mm.
Panel Cutout :
138mm x 138 mm.
Depth Behind Panel : 100mm, including
terminals.
Weight: Front Bezel : Approx 2 Kg
Field proven design
Compact DIN Std Flush Mounting 144
X 144 Case
4 Digit Digital Power Factor Meter
for accurate measurement
Built in Auto-Manual Control
Built in Low Current Cutout at 5%
Factory set at 0% if required
Calibrated PF Setting and Dead
Band Dials
Built in software timers for fast
correction yet ensuring capacitors safety
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Reliable COSROBOTTM
technology.
Available in 4, 6, 8, 10, 12, 14,
and 16 stages.
Special versions available for
Thyristor Real time control
Choice of Sequences - FIFO, FILO
or BINARY (factory set)
Special sequences on request
Time between stages factory
settable from 0.2 sec to 25 sec
Auto detection of external wrong
connections
Operationally Compatible with
Syntron Types 1107 and 1125
Built in Syntron Reliability
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