EPCOS Square Cap PFC Capacitors

   
 

Introduction

While the electrical energy is getting more scarce and expensive in the developing countries, the need for power factor improvement by installing capacitors is well understood by the users.

The improved power factor means: ·
 Reduced line losses
 Improved voltage profile
 Reduced system current
 Reduced cable sizes
 Optimum usage of transformer · Monetary saving.

We are pleased to offer an all New SquareCap Series of Power Factor Correction Capacitors with enhanced performance.
It helps you to achieve better economy by selecting an application specific capacitor type.

The SquareCap Capacitor series is now available in three designs viz.

ENDC : EPCOS Normal Duty Capacitor for normal inductive linear loads.
EHDLL : EPCOS Heavy Duty Long Life Capacitor for loads exhibiting some amount of non-linearity, presence of harmonics, medium size industries.
ESHDC: EPCOS Super Heavy Duty Capacitor for non-linear arduous and fluctuating loads and systems containing higher degree of harmonics.

SquareCap PFC Capacitors are ISI approved and comply with IS 13340 and latest IEC specifications.

1.Film
The three layer Metalized (Silver-Zinc -Alluminium) Polypropylene Film (MPP) with heavy edge is manufactured in-house on the latest technology machines. This gives advantages of higher stability obtained from Zinc and longer shelf life obtained from Alluminium. Heavy edge construction of the film provides a better bonding between electrode and metal endspray (scooping), thereby enabling an increase in current carrying capacity and ensuring better withstanding to the electro-mechanical stress that occurs due to switching surges

2. Winding
The basic single phase capacitors are wound on computer controlled automatic winding machines and impregenated with polyurethane resin (dry technology). Thus ionisation and carona discharge are eliminated resulting in capacitors with highly stable characteristics and long life.

3. Safety Systems
A) Burst proof safety device -To prevent the
capacitor from bursting in case of permanent breakdown caused by very high voltage in repetitive peaks and which can not be "self - healed" by the selfregenerative property, the capacitor is provided with a safety switchingdevice, which disconnects the capacitor from the power source. When the internal pressure increases to an unsafe level it produces expansion of the bellow and snapping of the inner connection to the supply terminal, thereby cutting off the supply and avoiding possible bursting. (See Fig. A)

B) Self-healing property - if the dielectric breakdown strength is exceeded locally at weak points, at pores or impurities in the dielectric, a dielectric breakdown occurs. The energy released by the arc discharge in the breakdown channel is sufficient to totally evaporated the thin metal coating in the vicinity of the channel. The rapid expansion of the plasma in the breakdown channel causes it to cool within few microseconds, thus quenching the discharge. This results in formation of insulated region around the faulty area thus the capacitor regains its full operation ability.

C) Due to polyurethane resin filling and non use of oil or PCB there is no risk of fire caused by spurting or leaking oil. In ecologically sensitive applications this design (dry) is a must.

4. Modular Construction
Single units in excess of 6KVAr are made up of the required number of basic single phase modules. These are housed in a single metallic container and are connected to the three terminals which are brought out through the terminal block. This construction enables easy and inexpensive repair at site and also considerably saves on spares inventory cost.

5. Inductor coil
For rating of 6KVAr and above each single phase capacitor module is provided with an inductor coil to control the inrush current to the capacitor, particularly in case of parallel switching and automatic control applications. This feature ensures long-term stability of KVAr output and extended life.

6. Discharge Resistor
All capacitors are provided with discharge resistors in order to discharge the capacitor to voltage less than 50Volts within one minute of disconnecting the supply. However, all capacitor terminals must be properly discharged before handling them.

EPCOS Super Heavy Duty Capacitor (Double Dielectric Type) EPCOS Super Heavy Duty Capacitor (Double Dielectric Type)

These capacitors meet the demands of heavy duty industrial loads. These loads are of the type, rectifiers, arc or induction furnaces, large rolling mills, cement factories, textile spinning mills, welding divisions etc. The basic reason which makes these loads arduous in nature is that, each load gives rise to high over current or higher over voltage in an irregular manner. Rectifier load or arc furnace generates harmonic voltages which would impose continuous and severe over current on capacitors.

In order to build up the correct degree of protection, a capacitor needs to be given a higher over current and also higher surge voltage withstand capacity. This dual consideration has been taken into account to evolve a different construction of capacitors. This design of the capacitors has been evolved keeping in mind the basic simplicity of construction of primary MPP cell and its superiority in the capital and operating costs. The new design retains all these features and still raises by about a factor of two, over current as also the surge voltage withstand capacity making it a real Super Heavy Duty Capacitor.

Unit ratings are available from 1 to 50KVAr.

Phase Cap Capacitor Phase Cap Capacitor

A hi-tech capacitor with Stud Mounting Cylindrical construction with inert gas impregnated winding having very good KVAr to volume ratio.

Specification :
● Conformance to Standards IEC 831-1/96, IEC 831-2/95, and VDE 560-46 3/95.

Range:
● Phase Cap : Single units from 5 to 60 KVAr. . Voltage: 230v to 690v.
● Wind Cap : for critical applications like windmill. Available in single units from 5 to 36 KVAr.
● Voltage: 690v and 800v.

Features:
● Manufactured using patented wave cut technology multilayer MPP film with Heavy Edge.
● Self healing property.
●  Low energy consumption.
● Capable of withstanding high inrush current.
● Dry type - freedom from oil leakage.
● Explosion proof feature using pressure sensitive mechanical interrupter.
● Compact size arid light weight.

PhiCap Capacitor

Stud mounting cylindrical type Having very good KVAr to volume ratio.

Specification :
● Conformance to Standards IEC 60831-1 and 2/96, IS 13340.

Range :
● Single units up to 25 KVAr.
● Voltage : 220v to 525v.

Available in two designs:
● Normal Duty for linear inductive loads.
● Heavy Duty for non linear load (Up to 15 KVAr).

Features:
● Manufactured using multi-layer MPP film with Heavy Edge.
● Self healing property.
● Low energy consumption.
● Dry type-freedom from oil leakage.
● Explosion proof feature using pressure sensitive mechanical Interrupter.

Square Cap Capacitor

Rectangular box type. Self standing units. Modular construction with sheet metal enclosure.

Specification :
● Conformance to Standards
● IEC 831-1 and 2, IS 13340.

Range:
● Single unit from 1 to 50 KVAr.

Available in three designs:
● ENDC: EPCOS Normal Duty Capacitor for normal inductive linear loads.
● EHDLL: EPCOS Heavy Duty Long Life Capacitor for loads exhibiting some amount of non-linearity, presence of    harmonics, medium size industries.
● ESHDC: EPCOS Super Heavy Duty Capacitor for non-linear arduous and fluctuating loads with higher degree of    harmonics.

Features:
● Manufactured using multi layer MPP film with Heavy Edge.
● Self healing property.
● Low energy consumption.
● Dry type-freedom from oil leakage.
● Explosion proof feature for individual cell using pressure sensitive mechanical interrupter.
● Simplified modular construction using hermitically sealed single phase basic capacitor cells.
● Easy and quick reparability at site.
● Inductor coil per cell for 6 KVAr and above to dampen inrush current.

Three Phase Filter Reactor Three Phase Filter Reactor

Anti resonance Three - Phase Filter Reactor.

Range:
● Effective filter output 5 KVAr to 100 KVAr. Filtering factor. 5.67%, 7%, 14%.
● Rated Voltage : 3 ph 440v.

Features:
●  Highest linearity, low risk of reactor tilting. . Low losses and noise level,
●  High over loading capability.
●  Low weight due to aluminium windings. . Safety devices, temperature micro switch.

Power Factor Controller Power Factor Controller

Power Factor Controller SR 6000 series.

Range:
Relay output: 4, 6 and 12 steps.
Supply: Voltage : 230V

Features:
●  Innovative and Intelligent concept.
●  User-friendly operations.
●  Large and Multi-functional LCD display (2 x 16 characters).
●  Recall function of recorded values.
●  Large measuring voltage range (50 to 525v, ph to ph).
●  Display of large number of system parameters.

Optional :
● RS 232 Interface.
● Harmonics display.
● Dynamic Powder Factor Controller (Transistorised) .
● Powerful alarm output.
● Control modes: LIFO, FIFO and Self
● Optimized Intelligent control.

Thyristor Switch Thyristor Switch

Thyristor Switches for real time power factor correction.

Range:
●  Suitable for 25 and 50 KVAr
●  Rated Voltage 440V

Features:
●  Easy installation : it can be used identically as a contactor.
●  Reaction time: 5 milliseconds.
●  Permanent self-controlling of :
    -  voltage parameter
    -  capacitor current
    -  temperature of the thyristor switch.
●  Alarm output per module.
●  Manual operation possible.

Pole Cap Capacitors

A modified version of Phasecap capacitor with connection cable, suitable for long-term outdoor applications and for mounting on poles.

Specification:
Conformance to Standards
IEC 60831-1 +2, EN 60831-1 +2,
UL 810 5'" edition and IS 13340.

Range:
Single unit up to 25 KVar.
Voltage: 400, 440, 525 VAC.

Features:
●  Connection wires provided with capacitor reduces the work load in the field and improves reliability.
●  Excellent heat dissipation due to single-housing concept.
●  Grounding provided by means of a M12 mounting stud.
●  Simple installation and assembly.
●  Provided with fault identification for easy checking after installation (visible from the ground) .
●  Three-phase overpressure disconnector.
●  Terminal cover, cable gland and connection cable made of material resistant to weather, UV radiation and aging.
●  Double housing of terminals for protection against hazardous parts, ingress of solid foreign bodies, dust and harmful effects of water.

Home Cap

An ideal companion of Home appliances. A capacitor in well insulated aluminium casing with built in safety device and suitable cable for easy and safe connection. Reduces electricity bill.

Specification:
●  Conformance to Standards IS 13340.

Range:
●  0.33 KVar/ 230V/ 50HZ/1 phase.

Features:
● Built in safety device.
● Aluminum can with burst proof construction.
● Long life-100,OOO Hrs.
● Low internal power consumption.
● High temperature capability.
● User friendly and Completely Safe.
● ISI approved.
● International quality.

Phase Mod

An innovative modular concept in Power Factor Correction Systems. The forward integrated Phasemod provides all the functions of carefully selected and optimally co-ordinated key components like Capacitor duty contactors, MKK capacitors, HRC fuses, copper bus bars, including the necessary inter connections.

Specification:
●  Conformance to Standards IEC 60439-1, IEC 60831-1/-2, EN 61921.

Range:
Units: 50, 62.5, 75, 87.5, 100 Kvar Voltage: 230 to 480 VAC.

Available In two series :

S - Phasemod : Standalone APFC system with PF controller.
A - Phasemod : PFC modules for integration in APFC systems.

Features:
●  Modular concept and expandable.
●  Easy and fast installation.
●  Long useful life expectancy.
●  High reliability.
●  Wave cut technology for high pulse withstand current capability.
●  Inrush current damping - Capacitor duty contactors.
●  Logistic advantage.
●  Reduced engineering efforts.
●  Serviceable.
●  Compact design - cost reduction.

AC (MFD) Capacitors

An innovative modular concept in Power Factor Correction Systems. The forward integrated Phasemod provides all the functions of carefully selected and optimally co-ordinated key components like Capacitor duty contactors, MKK capacitors, HRC fuses, copper bus bars, including the necessary inter connections.

Specification:
●  Complying to IS 2993 / IEC - 60252 (For Motors), IS 1709 (For Fans), IS 1569 (For Lighting Fixtures) and     relevant International Standards.

Range:
●  250VAC to 600VAC,1mfd t0150 mfd.
●  Smart box: 250VAC to 450VAC
●  0.5 mfd to 20 mfd

Applications:
●  Lighting Fixtures.
●  Motors and Pumps.
●  Air Conditioners / Washing machines/Fans. . Generators / CVTs / UPS.

Features :
●  Three layer Metalized polypropylene.
●  International technology.
●  Plastic or Aluminium Can construction.
●  Manufactured using state-of-the art automatic computerised equipments.
●  Safety device construction available.
●  Dual rating capacitors also available.
●  UL, CSA, CE approvals for various ratings (on request).

 
 


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