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APFC Panels

   APFC Panels
 
   Reasons why APFC Panels are needed :
In industry most of the load is inductive in nature which results in lagging power factor that is why there is loss and wastage of energy which results in high power bills and heavy penalties from electricity boards. If the load is uneven it is very difficult to maintain unity power factor. To overcome this difficulty APFC panel is used which maintains unity P.F.
 
   Features And Applications :
High speed power factor correcting system are designed to compensate the reactive power of any load or equipment requireing P.F. correction within a one cycle of opearating frequency or time delay of 30 sec to 5 min after command signal from APFC controller.

Renders the distribution network more stable since there is no contactor switching causing high voltage transients, spikes, harmonics and other disturbances by applying zero cross over voltage switching ON and zero current switch OFF of the capacitors.

Prevents voltage drop and fickering reduces failures in highly sophisticated electronic equipments like PLCs. computers and other control systems.

Helps in reducing maximum demand and RKVAH consumption hence substantial reduction in monthly electricity triff.

It is highly suitable for spot welding applications where the reactive energy is to be compensated for a short period of 200 msec or less and for a number of times in a second.

Accurate power factor control even in the presence of harmonics.
 
     Applications :
Textile Machineries | Printing Industry | Pharmaceutical Industry | CNC Machine  |  Hospitals | Film Industry | Food Processing industry | Resorts / Hostels / farm house | Engineering Plant | Automobile Industry | IT industry.
 
S Type Specification
Capacity
:
kVAR
Phase
:
Delta connection
Input voltage range
:
380/415/440volt , 3phase , 50/60Hz
System
:
Balanced/Unbalanced
Switching Type
:

S-type (SCR switching)

Construction
:
Indoor, floor mounting powder coated
Control. Range setting for PF
:

- 0.8 Inductive (lag to +0.8 capacitive (lead)– 0.8 Capacitive

Insulation
:
Class “B”
Humidity
:
Upto 95% Rh
Operating temperature
:
-0.5 to 45degree C
PROTECTION:    
Input MCB/MCCB
:
For incoming APFC panel
Input MCB/MCCB
:

For PF CAP of each step/bank

Untuned line choke
:
For PF CAP of each step/bank of 4% line voltage
Thermal protection
:
Excess heating of heatsink at 70 degree C
Cooling fan
:
Current sensing for cubicle and each heatsink
INDICATIONS
:
Mains on ------ control on ----- APFC panel on
Cooling fan on ---- Step MCB on ---------Static switch on
INSTRUMENTATION
:
APFC panel input voltmeter with selector switch
AC Current meter with selector switch and CT
Power manager (optional)
SWITCHING TYPE
:
Static switch / firing modules for each step
APFC CONTROLLER    
   Indications
Auto
Three digit numeric display
Manual
Capacitive And Inductive .(leading and lagging)
Current
Step ON Indicator   
THD(total harmonic distortion)
Up Button
Set Cos ø
Mode / Scroll Button
C/K
Down Button
Sensitivity
Program Button
Recon Time
Rated Steps 
Switch Program    
THD (total harmonic distortion) Limit    
       

Alarm assign for one of given parameters – current THD, current <3% rated value , current >110% rated value , voltage <85% rated value , voltage>110% rated value`, low PF when all cap. connected, Hi PF when no cap. connected, auto c/k step measurement error (manual setting required) , auto CT polarity error.

     

TECHNICAL DATA

1) AUXILLARY SUPPLY

:

Supply voltage: 220VAC /415VAC -15% / +10%  50/60Hz  consumption – 10VA max.

2) CURRENT INPUT

:
Rated current In : 5A  operating limits : 0.15A -6.5A  50/60Hz 

3) RELAY OUTPUT

:

Number of output : 6/8/12/14 (PFR60/PFR80/PFR120/PFR140)

  Rated capacity-5A 250VAC  Contacts: NO TYPE      Max current for common terminals: 12A continuous
4) CONTROL RANGE:
:

C/K setting : 0.03 – 1.20 / atc switching sensitivity : 5-600 s/steps

    Reconnection time for same step  : 5-240s THD threshold : 0.20-3.0(20%-300%)/off
    Switching program : automatic/automatic rotate/manual/four quadrant
    Rated step coefficient :0/1/2/3/4/5/6/8/12/16

5) MECHANICAL

:

Mounting: panel mounting dimension (H x W x D) 144 x 144 x 91    wt.: 1kg

     
APFC Panels
     
K Type Specification
APFC PANEL
:

K TYPE

Capacity
:

kVAR

Phase
:
Delta connection
Input voltage range
:

380/415/440volt, 3phase, 50/60Hz

System
:
Balanced/unbalanced
Switching Type
:

K-type (contactor switching)

Construction
:

Indoor, floor mounting powder coated

Control Range setting for PF
:

0.8 Inductive – 0.8 Capacitive

Insulation
:

Class “B”

Humidity
:
Upto 95% Rh
Operating temperature
:
-0.5 to 45degree C

  PROTECTION :

Input MCB/MCCB
:

For incoming APFC panel

INDICATIONS      
:

Mains on ------         control on     -----        APFC panel on
Cooling fan on  ---  Step MCB on   

INSTRUMENTATION
:

APFC panel input voltmeter with selector switch  
AC Ammeter with selector switch and CT
Power manager (optional)

SWITCHING TYPE
:

Contactor

  APFC CONTROLLER

Indications
3 digit numeric display
Manual 
Capacitive and Inductive. (Leading and lagging)
Current
Step ON Indicator   
Thd (total harmonic distortion)  
Up Button
Set Cos ø Power Factor
Mode / Scroll Button
C/K
Down Button
Sensitivity 
Program Button
Recon Time
Rated Steps 
Switch Program    

Thd (total harmonic distortion) Limit
Alarm assign for one of given parameters – current thd, current <3% rated value, current >110% rated value, voltage <85% rated value, voltage>110% rated value`, low pf when all cap. connected, hi pf when no cap. connected, auto c/k step measurement error (manual setting required), auto CT polarity error.

     

TECHNICAL DATA

1) AUXILLARY SUPPLY

:

Supply voltage: 220VAC/415VAC -15% / +10%  ,  50/60 Hz           consumption – 10VA max

2) CURRENT INPUT

:
Rated current In: 5A operating limits: 0.15A -6.5A 50/60Hz 

3) RELAY OUTPUT

:

Number of output: 6/8/12/14 (PFR60/PFR80/PFR120/PFR140)

  Rated capacity-5A 250VAC Contacts: NO TYPE      Max current for comman terminals: 12A continuous

4) CONTROL RANGE:

:

C/K setting : 0.03 – 1.20 / atc switching sensitivity : 5-600 s/steps

    Reconnection time for same step  : 5-240s thd threshold : 0.20-3.0(20%-300%)/off
    Switching program : automatic/automatic rotate/manual/four quadrant
    Rated step coefficient : 0/1/2/3/4/5/6/8/12/16

5) MECHANICAL

:

Mounting: panel mounting dimension (H x W x D) 144 x 144 x 91   wt.: 1kg

 
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