LV thyristor switched automatic capacitor banks with detuned reactors

Static detuned capacitor bank

OPTIM FRES-90-440

OPTIM FRES-90-440, Static detuned capacitor bank

Code: R64R88.

  • Cable section (mm2): 70
  • Nr steps: 4
  • kvar (400 V): 74
  • kvar (440 V): 90
  • Aut.Switch (A): -
  • Man.Switch (A): Included
  • Composition: 2 x 15 + 2 x 30
  • Use voltage (V): 440

INFORMATION

Description

The capacitor banks with detuned filters of the OPTIM FRE series have been designed for reactive energy correction in networks with fluctuating load levels, high harmonic presence and a risk of resonance.

The power variations are relatively quick (measured in milliseconds), and the operation is thus carried out by thyristors, which are connected to a voltage controller board, so that the connection and disconnection of the capacitor is carried out with zero voltage difference. Transients are prevented between the connection and disconnection of the steps, obtaining an immediate response to the load fluctuations.

Applications

The most common application is with individual loads or in installations where a quick compensation response is needed (e.g. welding units, motors for lifting units, lifts, etc.) and where the network has high harmonic content.

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SPECIFICATIONS

Electrical characteristics
Voltage
400 V (50 Hz) (other voltages on request)
Reinforcement voltage
440 V
Surge
10 % 8 h over 24 h 15 % up to 15 min over 24 hours 20 % up to 5 min over 24 hours 30 % up to 1 min over 24 hours
Discharge resistance
75 V / 3 min
Tolerance C
-5% / 10 %
Losses (W)
< 0,5 W/kvar
Current measurement circuit
Permanent overload
1,3 In
Transformation ratio
In / 5A
Environmental characteristics
Working temperature
Tª class D: Daily average: 45 ºC, annual average: 35 ºC, maximum: 55 ºC, minimum: -50 ºC
Relative humidity (without condensation)
80%
Protection class
IP 21
Mechanical characteristics
Envelope
Sheet metal RAL 7035 Grey / RAL 3005 Garnet
Fastening
Vertical / Self-supporting
Ventilation
Natural or forced according to options
Weight (kg)
120
Size (mm) width x height x depth
800 x 1200 x 500 (mm)
Protection
Element
Protection by stage by fuses with high cut-off power (APR). NH-00 series.
Features / performance
Components
CLZ capacitor Static switching unit on each stage, made up of static contactors (thyristors) Two-pole circuit breaker protection for capacitor bank and regulator operations. Reactive energy regulator of the Computer MAX-f Built-in thermostat on the heatsink for disconnecting the stage in the case of excessive temperatures (90 ºC) Detuned filters tuned to 189 Hz for protection against harmonics present in the network and for preventing resonance with harmonics of the 5th order or higher.
Optional
Manual switch on capacitor bank header Circuit breaker on capacitor bank header Circuit breaker + earth leakage protection on capacitor bank header Forced ventilation unit + thermostat Polycarbonate sheet for protection against direct contacts 400/230 V autotransformer
Standards
Standards
UNE-EN 61921, UNE-EN 61439-1, UNE EN 60831
Electrical safety, Maximum height (m)
2000 m

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

User's manual
Dimensions
Diagram connection
Datasheet
CE-certified
Software & Firmware
Catalogue
Leaflet

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