|
Automatic
Power Factor Controller Type 1188
These
compact Controllers provide cost effective solution to the control of
Power Factor in smaller installations. Available for a variety of
applications, the Controllers can be programmed to suit the User
needs. The Controllers are housed in 96 X 96 DIN flush mounting
enclosure with behind the panel depth of only 70mm. 1188 / 2 step is
useful to compensate the Power Factor of major on /off loads such as
compressors. It is also useful for correcting the Power Factor on the
secondary of a Utility Supply Transformer (usually pole mounted), by
means of two unequal capacitors used for the two stages, to take care
of load variations.1188 – 4, 6 and 8 step is used as a regular
Automatic Power Factor Controller. It is available for Three Phase as
well as for Single Phase applications
as
for Single Phase applications. The single-phase version is required
for extremely unbalanced loads, where three single-phase systems are
used in star connection.1188 / 4 step is available in a variety of
sequences First In First Out, Binary normal timing and Binary Fast
Discharge timing modes. Please ask us for details. Normally supplied
is First In First Out sequence.Both models are available for
thyristor switched capacitor systems.
The display is 7 – segment 12/7mm bright LED
display 3 digit for 1188/4step and 4 digit for the 1188 / 8 step.
LED’s provide appropriate indications of lag, lead, on, off and the
stages on.
The display provides indication of alarm condition.
The display reads 1.uuu (1.uu for 4 step) when current is very low.
The displayreads 2.uuu (2.uu for 4 step) when your external
connections are wrong.
There are no settings to make. The
Controller limits are factory programmed. The Controller is designed
to provide the best possible Power Factor under the system
constraints
- Field
proven design.
- Most Economical APFC
Relay available in market.
- No settings to make.
- Compact DIN Std
Flush Mounting 96 X 96mm Case.
- Depth behind panel =
70mm.
- Sensitivity better
than 1 % (50 mA).
- Built in software
timers for fast correction yet ensuring capacitors safety.
- Reliable COSROBOTTM
technology.
- Available in 2, 4, 6
and 8 stages.
- Special versions
available for Thyristor Real time control
- Choice of Sequences
- FIFO or BINARY (factory set)
- Auto detection &
indication of external wrong connections
- Auto detection &
indication of low load current
-
Built in
Syntron Reliability
Specifications
Voltage
380
to 470 Volts three-phase AC for voltage sensing. (100 to 270 Volts
for single-phase version)110 V PT operated versions available for HT
application.
Aux
Voltage
210
to 260 Volts single-phase AC 50 Hz as Auxiliary supply. (110 V
version also available)
Current
Through
secondary of CT on Y phase 0.05 Amps to 5 Amps.
Limits
The
capacitors are switched on sequentially whenever the Power Factor
drops to or below 0.99 Lag. The capacitors are switched off
sequentially when the Power Factor goes to or above 0.99
lead.
Timing:
For
First In First Out Sequence and Normal Binary Sequence
Timing
between stages on or off is 6 seconds. A capacitor once switched off
is not switched on for 60 seconds to allow it to discharge fully.
Timing:
For
Fast Discharge Binary Sequence
Timing
between stages on or off is 6 seconds. This timing includes the time
required for the capacitor to be force discharged.
Timing:
For thyristor controlled capacitors:
Timing
between stages on or off is 1 second.
Contacts
Each
stage is provided with one Normally Open (NO) contact rated for
maxima of 230 Volts and 5 Amps AC resistive load.
Weight:
1
Kg approx.
Size:
96 X 96 X 70mm (panel cutout 92 X92mm)
|
