Measuring and/or protection voltage transformers. Outdoor service up to 52 kV, isolated in cycloaliphatic resin or in paper-oil/porcelain.

      • A pole (phase-ground)
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VFP-52.
Insulation Voltage 52 kV.
Phase-to-Earth Connection.

HV Voltage transformer for measuring and/or protecting up to 52 kV, used for measurement instruments, meters, relays and other similar devices.  Designed to be used outdoors.

The transformer VFP-52 is a phase-to-earth transformer; that is, a single-phase transformer, used to keep one of the ends of the primary winding directly connected to earth.

The transformer has been designed to withstand high G levels due to earthquakes. It disposes of an expansion tank to compensate oil volume variations. There is also, in the upper end, a level indicator to show if the transformer and the insulating oil are in their usual working conditions.

The internal insulation is composed of paper-oil and external insulator is made of porcelain, with a creepage distance in compliance up to 35mm/kV regarding the polution level.

Manufactured in accordance with IEC 61869:1 & IEC 61869:3 standards. Other standards or specifications under consultation.

 

VFP-52 Catalog
User Manual VFP
TT Connection diagram
Plane (.dwg)

VKEF-24/36.
Insulation Voltage 24 or 36kV.
Phase-to-Earth Connection.

HV Voltage transformer for measuring and/or protecting up to 24 or 36 kV, used for measurement instruments, meters, relays and other similar devices. Designed to be used outdoors.
The primary winding is protected by insulation type E cycloaliphatic resin (in accordance with IEC 60085 standard); the core and secondary(ies) are outside the bushing. This type of resin is specifically used for devices installed outdoors, and resists the combined action of the weather and the electrical field.
The transformer VKEF-24/36 is a phase-to-earth transformer; that is, a single-phase transformer, used to keep one of the ends of the primary winding directly connected to earth.
The range of VKEF transformers has been designed taking into account the environment – no fluoridated oil or gas have been used as insulation material.
It is mechanically resistant and damp-proof, oil-proof, dust-proof and resists most chemical products.
Manufactured in accorance with IEC 61869:1 & IEC 61869:3 standards.

 

VKEF-24/36 Catalog
User Manual
TT Connection diagram
Plane (.dwg)

ARM.
Resistances Cabinet.

The load resistors cabinet ARM consists of a resistance box, a non-sealable terminal strip and a 2A circuit breaker, located in a metal cabinet with ventilation and connections protected by a sealable cover to prevent tampering.

Box load resistors, is comprised of three load resistors contained in a metal box with surface treatment to prevent corrosion and to evacuate the heat.

It is designed for indoor use. On request it can be manufactured for outdoor service and with different configurations.

Its function is to consume the necessary power for the transformer to work at least at 25% of the accuracy burden in cases where the loads connected to the unit (meters, relays,etc.) do not reach the minimum necessary to guaranteed measurement accuracy.

 

ARM Catalog
User Manual ARM