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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 :

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



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