2

Sisteme Integrate de Masura a ENergiei

roen

HOME || ABOUT US || PRODUCTS || SERVICES

Low Voltage
Medium Voltage

Low voltage instrument current transformers

SIMEN s.r.l.

7, Piatra Craiului Street, 107086 Negoiesti - Brazi, DIBO Industrial Zone, Prahova, Romania
tel/fax: +40 244 434 313
fax: +40 244 434 314
mobile: +40 722 358 892

office[at]simen.ro
poza1poza2poza3

Toroidal winding machines, robots for motor winding, measurement equipment for laboratories, fiberglass products

www.toroidal.ro

Areas of use:

Current transformers for measuring and protection are designed to be used in interior electrical installations and are meant to power energy meters, measuring equipment, relays and other electrical devices. The secondary current of the transformer, under normal usage conditions, is proportional with the primary current and out of phase by an angle close to zero if the connections are correct.
Current transformers also isolate the devices connected to the secondary winding from the primary currents.

Description:

Current transformers are toroidal-shaped (ring core transformers), dry, and protected by a plastic fire-proof case. The secondary contacts are protected by a sealable cap made from the same material as the case.

The current transformer type TCB has a ferromagnetic ring-type core, on which the primary and secondary coils are wound, isolated one from the other. The primary winding is made from an isolated copper conductor and its terminals are fixed onto the main brass connection. The section of this conductor is proportional to the primary current
The secondary winding is made from an isolated copper coil and its section correponds to the desired secondary current (5A or 1A).

The current transformer type TC has a ferromagnetic ring-type core, on which the secondary coil is wound. The bar/ cable carrying the primary current passes through the center of the encased ring core. The secondary windings will show a standard current value of 5A or 1A, proportional to the primary current to be measured.
Depending on the construction type, there are 5 models for this transformer:

  • TC 22: Pass-through current transformer to be mouted on a
    • pass-through bolt
    • cable  

  • TC 30: Pass-through current transformer to be mounted on a
    • 30x10 or 2x20x10 bolt
    • cable, Φmax 24

  • TC 40: Pass-through current transformer to be mounted on a
    • 40x10 or 3x30x10 or 3x20x10 bolt
    • cable, Φmax 33

  • TC 80: Pass-through current transformer to be mounted on a
    • 80x10 or 3x60x10 or 4x40x10 bolt
    • cable, Φmax 52
  • CTP : Current Transformer for protection
    • insulated in siliconic rubber
    • 100...600 / 1 (5) A
  • TCT : Toroidal Current Transformer made to customer specification
    • used as measuring and protection devices for medium voltage oil insulated power (or distribution) transformers
    • can be cast in resin or in a silicone rubber mould
    • can be used indoors or outdoors, depending on customer demand

© SIMEN s.r.l., PRAHOVA, ROMANIA