Low Voltage Capacitor 525V

Low Voltage Capacitors

Application

Shunt Power Factor Correction

Technology

APP (film foil capacitor)

Material

Dielectric: Double layer Biaxially Oriented Hazy Polypropylene (BOPP) film
Electrode: Aluminum foil
Impregnant: Non PCB, biodegradable oil
Casing: Metallic, CRCA (Cold Rolled Cold Annealed)
Case Insulation: Press phan paper
Bushings: Polymeric
Terminals: Brass stud with two plain washers and hex head nuts (refer drawing).
Discharge device (external): carbon film or metal oxide film or thick film resistor
Paint: Epoxy, light gray (shade 631 as per IS 5:2005)

Charateristics

Application	Indoor	Insulation class (IEC60085)	90
Degree of protection	IP00	Cooling	ONAN
Creepage Distance	25 mm / kV	Discharge time	3 minutes
Residual voltage	Less than 75 V	Temperature rise at rated voltage, frequency & room temperature	10 ℃ (max.) container
IS 13585 (Part 1): 2012 / IEC 60931-1 : 1996

Approval mark	Reference standards	Certificate
	IS 13585 (Part 1): 2012 / IEC 60931-1 : 1996	ISI Mark applicable to 440 V, 480 V and 525 V ratings

Rated capacitance (CR)
Rated output (QN)	Refer table No. 1
Rated current (IR)
Rated voltage (VR)	440 V AC
Rated frequency (fR)	50 Hz
Capacitance tolerance	-5 / +10%
No. of phases and connections	Three phase, internally Δ connected
tan δ (dielectric)	≤ 2 • 10^-4

Long duration voltages	1.00 • VR – Continuous
	1.10 • VR – 8 hours in every 24 hours
	1.15 • VR – 30 minutes in every 24 hours
	1.20 • VR – 5 minutes
	1.30 • VR – 1 minute
Long duration currents	2 • IR (including combined effects of harmonics, over voltages and capacitance tolerance)
Switching operations	15000 per year
Switching current	400 • IN
Life expectancy	280000 h (at rated voltage, rated frequency & -10/D temperature category)

Sealing test	To check integrity of sealing
VTT	4.3 • VR DC for 10 s
Discharge device test	To check capacitor discharge time after isolation of electric supply.
VTC	3 kV rms for 10 s / 3.6 kV rms for 2 s of power frequency
C measurement	At 0.9 to 1.1 x VR between terminals
tan δ measurement	At 0.9 to 1.1 x VR between terminals
Visual	For dimensions, finish, marking

Application duty	Indoor
Altitude	2000 m (max.) above mean sea level
Ambient temperature Tmin	Category: -10/D -10 ºC
Tmax	+55 ºC (max. 1 hour / day) +45 ºC (highest mean over any period of 24 hours) +35 ºC (highest mean over any period of one year)
Casing Temperature	60 ºC max.
Humidity	20% to 95% RH
Degree of Pollution	No corrosive salt, dust & sand laden. No chemical fumes, chloride gas, sulfide gas, acidic or alkaline fumes, etc. in surrounding air. No deposition of conducting particles.
Seismic zone factor	0.24 (max.) corresponding to seismic zone IV - severe 0.15g (both horizontal & vertical direction)
Vibrations	Not expected. To be installed on rigid, steady, level surface.

Container Dimensions	As per Drawing
Net weight	As per drawing
Earthing	Separate unpainted brackets provided on two sides.
Mounting / Lifting	Metal brackets provided on sides.
Mounting Position	Vertical/Horizontal Should not be mounted upside down (bushing at bottom) or in cantilever position.
Terminal tightening torque	M10 terminal – 6.0 to 7.0 Nm

Note: The dimensions in datasheet are tentative. Please get in touch with respective sales at the time of ordering.

Construction