Transformer DEL(TDG..)


  • Ring current transformer for residual current detection in connection with RD series residual current relays
  • Suitable for earth fault monitoring of machines and systems
  • Detects the current difference of all active conductors passed through the ring core
  • Selection according to required residual current and required hole diameter
  • Primary / secondary ratio 1 / 700
  • Thermal short-time current 20 kA / 1 s
  • Insulation voltage 0.72 kV and test voltage 3 kV
  • Screw terminal with sealable terminal cover
Datasheet
Add to your Quote List

TDG

Ring current transformer for residual current relays

Type Ring current transformer for residual current detection in connection with RD series residual current relays
Application Detection of residual currents for earth fault monitoring of machines or systems
Working principle The active conductors and neutral conductor passing through the transformer opening create a magnetic field proportional to their own current. In fault-free operation, the sum of the currents is zero.
Residual current detection A current flow to earth causes a current difference in the three-phase system. This difference induces a proportional current in the transformer winding, which is evaluated by the residual current relay.
Transformer selection According to the lowest required residual current and the hole diameter through which all active conductors can be passed
Connection ring current transformer – relay Preferably with shielded cables, especially for sensitive fault currents IΔn ≤ 0.1 A
Primary / secondary ratio 1 / 700
Primary circuit Conductors of the three-phase line to be protected, passed through the ring core
Lowest current IΔn The lowest adjustable IΔn value can be set on the respective relay
Highest operating current In According to table; the values indicated are only valid with exactly centered conductors
Thermal short-time current Ith 20 kA / 1 s
Dynamic short-time current Idyn 40 kA / 0.05 s
Insulation voltage 0.72 kV
Test voltage 3 kV R.M.S., 50 Hz / 1 min
Test circuit Measuring winding towards earth
Reference temperature 20 °C ± 5 °C
Operating temperature -5…40 °C according to IEC 755
Max. temperature range -10…55 °C
Storage temperature -40…70 °C
Connection Screw terminal with sealable terminal cover
Housing material Self-extinguishing ABS
Mounting Screw mounting

Model Table

Type A B C D E Weight
TDGB2 35 92 113 36 56 250 g
TDGH2 60 105 138 36 56 300 g
TDGC2 80 125 160 36 56 400 g
TDGD2 110 165 198 36 56 560 g
TDGE2 140 200 234 36 56 750 g
TDGF2 210 290 323 44 64 1280 g






Ringstromwandler DEL(TDG..)
Technical advice: 03303 / 50 40 66

Technical advice for this product


    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



    Transformer DEL(TDG..)

    Ringstromwandler DEL(TDG..)
    • Ring current transformer for residual current detection in connection with RD series residual current relays
    • Suitable for earth fault monitoring of machines and systems
    • Detects the current difference of all active conductors passed through the ring core
    • Selection according to required residual current and required hole diameter
    • Primary / secondary ratio 1 / 700
    • Thermal short-time current 20 kA / 1 s
    • Insulation voltage 0.72 kV and test voltage 3 kV
    • Screw terminal with sealable terminal cover
    Datasheet
    Add to your Quote List

    TDG

    Ring current transformer for residual current relays

    Type Ring current transformer for residual current detection in connection with RD series residual current relays
    Application Detection of residual currents for earth fault monitoring of machines or systems
    Working principle The active conductors and neutral conductor passing through the transformer opening create a magnetic field proportional to their own current. In fault-free operation, the sum of the currents is zero.
    Residual current detection A current flow to earth causes a current difference in the three-phase system. This difference induces a proportional current in the transformer winding, which is evaluated by the residual current relay.
    Transformer selection According to the lowest required residual current and the hole diameter through which all active conductors can be passed
    Connection ring current transformer – relay Preferably with shielded cables, especially for sensitive fault currents IΔn ≤ 0.1 A
    Primary / secondary ratio 1 / 700
    Primary circuit Conductors of the three-phase line to be protected, passed through the ring core
    Lowest current IΔn The lowest adjustable IΔn value can be set on the respective relay
    Highest operating current In According to table; the values indicated are only valid with exactly centered conductors
    Thermal short-time current Ith 20 kA / 1 s
    Dynamic short-time current Idyn 40 kA / 0.05 s
    Insulation voltage 0.72 kV
    Test voltage 3 kV R.M.S., 50 Hz / 1 min
    Test circuit Measuring winding towards earth
    Reference temperature 20 °C ± 5 °C
    Operating temperature -5…40 °C according to IEC 755
    Max. temperature range -10…55 °C
    Storage temperature -40…70 °C
    Connection Screw terminal with sealable terminal cover
    Housing material Self-extinguishing ABS
    Mounting Screw mounting

    Model Table

    Type A B C D E Weight
    TDGB2 35 92 113 36 56 250 g
    TDGH2 60 105 138 36 56 300 g
    TDGC2 80 125 160 36 56 400 g
    TDGD2 110 165 198 36 56 560 g
    TDGE2 140 200 234 36 56 750 g
    TDGF2 210 290 323 44 64 1280 g






    Technical advice: 03303 / 50 40 66

    Technical advice for this product


      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



      Diese Website benutzt Cookies. Wenn du die Website weiter nutzt, gehen wir von deinem Einverständnis aus.
      More info