ALTERNATING POWER FACTOR CORRECTION SYSTEMS SYSTEMS
 

 

The Automatic Power Factor Correction Systems are Optimal Solution for

Varying Load Patterns demanding changing Reactive Power Compensation

  • Avoidance of problems due to leading PF conditions by Fixed Compensation
  • Economic Solution by single Centralized Power Factor Correction System


System Design

 

Baron Automatic Power Factor Correction System is unique with its Custom Based Design, based on the Load Study Conducted on site with High Speed Power Quality Analyzer with recording interval selected as appropriate to the study, depending on the Loading pattern.

The System is basically designed as a series RLC Circuit to suppress the transient inrush current, while injecting reactive current. Its Components Selection is critical due to the inherent operating parameters of the Capacitors which draws high inrush current during switching and while opening out. The Electrical charges remains in the capacitor thereby building up the Restriking Voltage.  This characteristics of the Capacitors needs careful study and selection of the correct components to ensure long life for the total system.

The Choice of Capacitor Duty Contactors with Damping resistors provide protection from inrush current during switching. The Coil Wound Inductors provide additional protection from short time high current peaks. The Sequential Cyclic Switching of Capacitors with preset time delay for safe discharge of capacitors, increases the life of capacitors and avoids problems rooting from voltage peaks while energizing the charged capacitors at Sinusoidal Peak instants of Supply Voltage.
The selection of Capacitor stages with appropriate stage ratios matching the load profile provides Power factor Correction with High Resolution. 


Salient Features

Microprocessor based Power Factor Controller with Special Features
Four Quadrant Measurement
Accuracy of +0.8% for Reactive Power, + 0.5% for Current
6 or 12 steps to operate Capacitor Circuits.Precise and quick relay controls
Continuous monitoring of defective capacitor stages.Counting, Storing and Display of number of switching operation
Alarm for excess operation than programmed limits.Dual control curve characteristics: to avoid over compensation under light loads and to avoid inductive reactive power under regenerative conditions.Monitoring of harmonic levels continuously with alarm and safety trip facility.Zero voltage & Zero current tripping with alarm signals.Manual/Automatic operation with ability to switch each individual Capacitor

 

System Protection by Incoming Moulded Case Circuit Breaker selected with tripping characteristics for the Individual Capacitor Circuit as well as multi bank parallel switching characteristics

 

 

Feeder Protection by MCB having tuned tripping characteristics to ensure avoidance of any inadvertent tripping by the inrush current of the capacitors

 

Capacitor Duty Contactors with two sets of Contacts, one for restricting inrush current and other for continuous loading of the capacitors, specially designed with the Damping Resistance to restrict the inrush current into capacitor stages energized

Heavy Duty Capacitors with Unique Features

Construction

Cylindrical

Dry Type with Flame Inhibiting Mineral Filler

Metallised Polypropylene Construction.

 

Over Current
Withstand Capability

Min. 1.5 times IN at rated Voltage permanently &
Min. 200 times IN during short peak currents

 

Wattage Loss

 

0.2 Watt/KVAR at Capacitor Coils and
0.5 Watts/KVAR at terminals including Discharge Resistors

Temperature
Withstand Capability

 

–25°C to + 70°C

 

Voltage

440 V

Voltage Harmonics
Withstand Capability

5th Harmonics        - 5.0%

7th Harmonics        - 4.0%

11th Harmonics       - 3.0%

13th Harmonics       - 2.1%

 

Safety Features

Patented spring loaded terminals
overpressure disconnector

Alarms
The Alarm Signal is initiated for abnormalities in the System .By simple pressing of Manual / Set Push button, the alarm can be Accepted & Re-set.
Alarms indicated:

 

  • Power factor Alarm

§      Harmonic Alarm

§      Over-current Alarm

§     “U=0” Alarm

§     “C=0” Alarm

§     “I=0” Alarm

 


Benefits


Direct Benefits

Reduction in MD kVA
Reduction in kWHr Consumption
Reduction in kVAHr Charges
Avoidance of PF Penalty
Availing PF Incentive

Indirect Benefits

Reduction/Avoidance of End Termination Darkening or Burn Outs
Reduction/Avoidance of Motor winding Failures
Improved System Performance due to Healthy Voltage
Low Electric Break Downs/ Reduced Plant Down Time


RANGE

APFC - CONTACTOR SWITCHED WALL MOUNTING CONSTRUCTION

System

 

Model

Capacitor Configuration

 

APFC / 3  - 37.5 KVAR

3AW1a

 

(3 X 12.5)

APFC / 3  - 50 KVAR

3AW1c

(12.5 x 2 + 25 X 1)

APFC / 4 – 50 KVAR

4AW1a

12.5 X 4

APFC / 4 – 75 KVAR

4AW1c

(12.5 X 2 + 25 X 2)

APFC / 5 – 62.5 KVAR

5AW1b

(12.5 x 5)

APFC / 5 – 87.5 KVAR

5AW1c

(12.5 X 3 + 25 X 2)

APFC / 6 – 75 KVAR

6AW1c

(12.5 X 6)

APFC / 6 – 100 KVAR

6AW1c

(12.5 X 4 + 25 X 2)

 

APFC - CONTACTOR SWITCHED SINGLE SHELL CONSTRUCTION

System

 

Model

Capacitor Configuration

 

APFC / 6 - 100 KVAR

6AV1d

(12.5 X 4 + 25 X 2 with 250A MCCB)

 

6AV1e

 

(12.5 X 4 + 25 X 2 with 400A MCCB)

 

APFC / 6 - 125 KVAR

6AV1d

 

(12.5 X 2 + 25 X 4 with 250A MCCB)

 

6AV1e

 

(12.5 X 2 + 25 X 4 with 400A MCCB)

 

APFC / 6 - 150 KVAR

 

6AV1e

 

(25 X 6 with 400A MCCB)

 

6AV1e

 

(15 X 2 + 30 X 4 with 400A MCCB)

 

 

APFC - CONTACTOR SWITCHED DOUBLE SHELL CONSTRUCTION

 

System

 

Model

Capacitor Configuration

 

APFC / 8 - 150 KVAR

 

8AD1 f / g

(12.5 X 4 + 25 X 4)

APFC / 6 - 180 KVAR

 

6AD1 f / g

(30 X 6)

APFC / 8 - 180 KVAR

 

8AD1 f / g

(15 X 4 + 30 X 4)

APFC /8 - 200 KVAR

 

8AD1 f / g

(25 X 8)

APFC / 8 - 210 KVAR

8AD1 f / g

 

(15 X 2 + 30 X 6)

APFC /8 - 240 KVAR

 

8AD1 f / g

(30 X 8)

 

APFC / 10 - 225 KVAR

 

10AD1 f / g

(12.5 X 2 + 25 X 8)

 

APFC / 10 - 250 KVAR

 

10AD1 f / g

(25 X 10)

APFC / 10 - 270 KVAR

 

10AD1 f / g

(15 X 2 + 30 X 8)

 

APFC / 10 - 300 KVAR

10AD1 f / g

(30 X 10)

 

APFC /  12 - 300 KVAR

12AD1 f / g

(15 X 4 + 30 X 8)

 

APFC / 12 - 360 KVAR

12AD1 f / g

(30 X 12)

 


APFC - CONTACTOR SWITCHED DOUBLE SHELL CONSTRUCTION (FEEDER MCCB)

 

System

 

Model

Capacitor Configuration

 

APFC /  8 - 400 KVAR

 

8AD2g

(50 X 8)

 

APFC /  10 - 400 KVAR

 

10AD2h

(25 X 4 + 50 X 6)

 

APFC / 10 - 450 KVAR

 

10AD2h

(25 X 2 + 50 X 8)

APFC / 10 - 500 KVAR

10AD2h

(50 X 10)

APFC / 12 - 500 KVAR

12AD2i

(25 X 4 + 50 X 8)

APFC / 12 - 550 KVAR

12AD2i

(25 X 2 + 50 X 10)

APFC / 10 - 600 KVAR

10AD2h

(60 X 10)

APFC / 12 - 600 KVAR

12AD2i

(30 X 4 + 60 X 8)

APFC / 12 - 660 KVAR

12AD2i

(30 X 2 + 60 X 10)

APFC / 12 - 720 KVAR

12AD2i

 

(60 X 12)