Power factor correction solutions

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Contents

Alpivar² capacitor HarmonicsTable choice according harmonic pollutionRacksInterest of 6 terminals connectionCapacitor BankRules of installationMaintenance operations

Contents

Alpivar² capacitor HarmonicsTable choice according harmonic pollutionRacksInterest of 6 terminals connectionCapacitor BankRules of installationMaintenance operations

 Standard aluminium can capacitors

• Metallisation

• Dielectric resistance 2600 V

•Insulating polypropylene film

Linear metallisation

Alpivar² capacitor

Insulating polypropylene film

Progressive metallisation

Dielectric resistance 3100V

Improves self-healing life expectancy improved

Spread of gaz less brutal

Premium quality film

« The coil »  

connections

Types of coils

Standard type :for low harmonic pollution

H type : film is thicker to support higher harmonic pollution

Alpivar² capacitor  

FuseCase

Terminal blocks

Discharge

resistance

Polyurethane resin

Over pressure disconnector

Alpivar²- connections  

bolts

Very good electric contact versus Faston connection, use of special screws and screwer

Alpivar² - casing  

• Polyurethane casing• Non corrosive• Auto extinguible

• Class 2 : safe • Compact • Over pressure device integrated in casing

Alpivar² - coating

Dry - polyurethane

• All positions

• No risk of oil leak

• Auto extinguible

Coils coatted under vaccum (patent )

• Improves life expectancy(8 to 10 years)

• Excellent stability of capacitance

• Resists to high temperatures 55°- class (D)

• loss factor < 0.3W per kVAr

Alpivar² - Protections  

3 types of protections

• Film self-healing

• Internal electrical fuse

• Overpressure disconnecting device with visual action, large to be sensitive to gaz

Competition capacitors

• Self healing of the film• No proper electrical fuse• External overpressure device• Mineral Oil or Gas• Deformation of the case> Leakage of oil or Gas> Fire

Alpivar² versus aluminium can

CasingNeed to be earthedImpregnantCapacitor andenvironment hazard

Anti-explosionsystem

MaximumadmissiblevoltageMaximumadmissiblecurrentInsulationlevel

6kV/ 25 kV

1.5 time nominal currentpermanently

Alpivar²

No risk because:no envelop deformation

no oil, liquid or gasauto-extinguishing envelop

Any position

By internal overpressure device inside the case

Non flammable:auto-extinguishing resinYes

Oil, resin or gas leakFire

Explosion or deformation of the envelop

Vacuum/ totally dry

Internal connections completely welded and drowned under vacuum in the resinNo risk of oxydation and therefore no contact resistance

No: double insulation class 2

Powerconnection

Vertical

By external deformation of the case

Oil, gas, high viscosity resin

Mountingposition

Aluminium canAluminium can

External connections by wires and "Faston" pins with risk ofoxydationoverheating

Ucn+10%(up to 8 hours daily)

1.3 time nominal currentpermanently

3kV/ 15kV

Ucn+18%(24h/24h)

IEC 60831-1 & 2 standard ALPIVAR²

Max.Admissible

voltage

1.1 Un for 8h / 24h

1.18 Un permanent

1.15 for 30 minutes / 24h

Max.Admissible current 1.3 In continuous

1,3 In std type 1,5 In H type

Alpivar² versus regulations

Standard connection – 3 terminals

L2 - S

L1 - R

L3 - T

Ifuse

Contactor

rating I

Connection – 6 terminals

L2 - S

L1 - R

L3 - T

fuse

I/√3

I

Contactor rating I/√3

Alpivar² capacitors

60 752.5 5 6.25 7.5 10 12.5 15 20 25 30 35 40 50 80 90 100

SH/ST Max.voltage

Standard type < 15 % 415 V

H type < 25 % 440 or 525 V

3 phase 3/6 terminals– 50Hz

Indoor installation : -25°C < T < 55°C

Max temperature : 55°C

Average temperature over 24H : 45°C

Annual average temperature : 35°C

Alpivar² capacitors

Classes of temperature

Thank you for your attention