| TECHNICAL DATA SHEET |
Rated Voltage |
415 Volts AC + 10% |
Rated Frequency |
50 Hz + 3% |
Type of System |
De-Tuned System : Frequency ranging from 136 Hz to 189 Hz, …….
|
| Tuned System : Frequency ranging from 210 Hz to 250 Hz, ………. |
Over Voltage |
105% continuous ; |
| 110% for 8 hours daily; |
| 120% for 5 minutes; |
| 130% for 1 minute |
Overload |
200% the rated current continuously |
Configuration |
Delta |
Basic insulation level |
3.0 kV rms (1 minute) |
Capacitance rating tolerance |
+ 5% |
Steps of Controller |
6 Steps (or) 12 Steps |
Pick up Current of Relay |
20 mA |
Relay Sensitivity |
10 mA |
Controller Switching Logic |
First In First Out, with a reconnection time delay of
1 minute. |
Control Modes |
Automatic, Semi-Automatic, Emergency/Manual |
P.F Measurement |
Micro Processor based four quadrant APFC Relay |
P.F Display |
Through LED updated dynamically |
Voltage for Auxiliary circuits |
230 V, 50 Hz |
Relay Current Input Signal |
ByC.T on line …/5A or …/1A |
Relay Voltage input |
230 / 400 Volts |
Service |
Continuous |
Installation |
Indoor |
Inpanel Temperature Class |
0° C to + 60° C |
Altitude |
Upto 1000 meters above msl |
Type of Capacitors |
Dry, Self-Healing, Heavy Duty, Cylindrical, Metallised polypropylene capacitors with overpressure disconnector and external discharge resistors. |
Dielectric Loss of Capacitors |
< 0.2 Watts per KVAR & < 0.5 Watts per KVAR with discharge resistors. |
Inrush current withstand capability of capacitors |
> 300 times the rated current. |
Metering |
Digital Voltmeter & AmmeterOptionally – Power Meter. |
Panel Protection
|
Protection against : |
 |
Over-Load. |
|
Short Circuit. |
|
Earth Fault. |
Alarm Signals |
Under compensation, Faults in voltage & current circuits, High harmonic levels, Fault in capacitor stages & Defective capacitor stages. |
Capacitor Step Switching Assembly |
Capacitor Duty Contactors with pre insertion resistors and low contact bounce. |
Harmonic Filter Reactors |
Insulation Class – “F”
|
| Core Linearity – 1.75 times the rated current. |
| Ref. Design Ambient Temperature – 60° C |
| Self Cooling Thermistor monitored. |
Protection Devices |
MCB / MCCB ensuring adequate overload & short circuit protection, current limiting feature and single phasing prevention. |
Scope of Supply |
|
Contactor switched capacitor panel complete with Busbars, LT power factor correction capacitors, MCCB, Contactor, CTs, PTs for internal control completely wired inside powder coated panel |
|
Supervision of Commissioning. |
Operating Conditions |
The APFC system is designed for safe and reliable operation in electrical installations with VTHD< 10%. |
