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HV Instrument Transformers 

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Current Transformers  (AGU)

The CTs are used to step-down current to defined values, and thus provide standardized, useable levels of current in a variety of power monitoring, measurement and protection applications while insulating the measurement and protection equipment from high system voltage. Maintenance free.

Performance

  • Um: 72,5 kV to 800 kV.

  • In: up to 6000 A.

  • Short circuit: up to 100 kA (Idyn: 250 kA peak).

  • Secondary cores: up to 1.

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Power Voltage Transformers (VPT)

Single phase insulated power are intended to be connected to high voltage system and used for a direct supply of low voltage level electrical power to substations or remote consumer, in areas where distribution grid is not accesible. Maintenance free

 

 

Performance:

  • Um: from 72,5 kV up to 550 kV.

  • Rated output: 10 to 333 kVA per phase.

  • Unique ferroresonance immune design (open type magnetic core).

  • Compact size and light-weight design – easy transport and installation.

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Inductive Voltage Transformers (VPU)

Those are used to step-down high voltage to defined values, and thus provide standardized, useable levels of voltage in a variety of power monitoring, measurement applications while insulating the measurement and protection equipment from high system voltage. Maintenance free.

Performance

  • Um: from 72,5 kV up to 550 kV.

  • Up to 6 secondary windings.

  • Unique ferroresonance immune design (open type magnetic core).

  • Explosion safety - Internal arc resistant.

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Combined Transformers (VAU)

Consist of a inductive potential transformer and a current transformer. They are used to reduce current and voltage to define values, and thus current and voltage level can be set in a variety of power monitoring, metering, and protection applications that winch the system's high voltage measurement and protection equipment.  

Performance

  • Um: 72,5 to 550 kV.

  • Up to 6000 A.

  • Short circuit: up to 100 kA (Idyn: 250 kA peak).

  • Secondary cores: up to 10. Secondary windings: up to 6.

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Capacitor Voltage Transformers (VCU)

Those are used to step-down high voltage to defined values, and thus provide standardized, useable voltage in a variety of power system protection, monitoring and measurement applications while insulating the low voltage equipment from high system voltage. Maintenance free.

Performance:

  • Um: from 72,5 kV up to 800 kV.

  • Up to 6 secondary windings.

  • Modern capacitor insulation - mixed dielectric with synthetic impregnating liquid.

  • Power line carrier application ready, accessories optional.

brochures
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