Current detector relay AC

WDH/TS

WDH/TS

Code: P32020.

  • Harmonic relay

INFORMATION

Description

WDH harmonics detectors are electronic devices with an output relay that is connected when the harmonics current level measured in the circuit exceeds a threshold that can be adjusted.

  • It monitors and acts in accordance with the true root mean square of the total harmonic current in a phase. The trigger level is adjusted with the potentiometer on the front of the unit.
  • Delay: the output relay activation time can be adjusted (up to 30 s).
  • The reset process is automatic with currents under 10% of the trip level (Hysteresis).
  • Current measurement, depending on the type:
    • With built-in current transformer (net diameter ∅ 25 mm)
    • Separate transformer, input.../5 A ac

Applications

The WDH current detectors are mainly used to protect transformers, capacitor banks, etc. In general, any receiver subject to harmonic overloads.

SPECIFICATIONS

AC power supply
Consumption
2 W
Frequency
50 Hz
Nominal voltage
230 / 400 V~ (-15%, +10%)
Environmental characteristics
Protection class
IP 40
Operating temperature
0 … +50 °C
Standards
Certifications
UL, VDE
Standards
IEC 605, IEC 1010-1, UNE-EN 61010-1, UNE-EN 50081, UNE-EN 50082, IEC 255, UL 94, EN 20607, UNE 20608, UNE 21136, VDE 0110
Current measurement circuit
Nominal current (In)
… / 5 A
Permanent overload
2 In
Digital relay outputs
AC11 Ie/Ue
0,8 A / 240 V~
DC11 Ie/Ue
1,6 A / 110 Vdc
Thermal current (Ith)
5 A
Insulation voltage
250 V~
Electrical life
2 x 106
Mechanical life
2 x 106
Differential protection
Delay time (t∆)
0,5 … 30 s

DIMENSIÓN

VÍDEOS

DESCARGAS

Datasheet

ACCESORIOS

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