Power factor correction solutions
ALPES TECHNOLOGIES
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
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