Auxiliary power supply instrument transformers

Moulded case current transformers for the measurement of AC currents up to 150 A.

They are made of a non-flammable plastic material, and have heavy insulation. These current transformers are suitable for any application.

With their compact size and their high characteristics, they are particularly suitable for withdrawable switchboards.

Moulded case current transformers for the measurement of AC currents from 50A to 1000A. measuring duties and is suitable for every simple application.

They are made of a non-flamable plastic material. This new range of current transformers has been designed for an easy installation : all transformers can be delivered with DIN rail clips. They are equipped as standard with a sealable terminal cover to comply with the most demanding safety requirements.

This range includes current transformers for measuring duties and is suitable for every simple application.

Moulded case current transformers for the measurement of AC currents from 100A to 8000A.

They are made of a non-flamable plastic material and have heavy insulation. This comprehensive and compact range fits most busbars, from 30 to 160mm.

These ring type current transformers are available for indoor (ORX) or outdoor use (OREX). They have been designed to meet the requirements for measuring:
- line currents
- zero-sequence currents in the neutral of power transformers
- earth fault currents in power transformers.

The secondary terminals are accessible, either directly in the case of indoor equipment (ORX), or through a watertight terminal box in the case of outdoor application (OREX). Several types of terminal boxes are available depending on the required characteristics.

The change to newer, faster and more selective protective system makes it necessary to replace existing current transformers with different output, class, ratio, number of secondaries to suit the needs of the new protection.

The best solution is to use split-core current transformers on insulated cables or outside single phase metalclad units. This solution is very economical because:

- It is not necessary to dismantle and remake the cable sealing ends on the metalclad units.

- There is no need to recommission and test the main equipment.

- It reduces the risk of damage and the length of outages at reduced costs.

These current transformers are avalaible for indoor use (CR) or outdoor use (CRE).

Voltage transformers and potential transformers for the measurement of AC voltages up to 2 000 V.
Main features include:
• Indoor
• Primary voltage up to 2000V
• Measurement and protection
• Protected construction, with unbreakable bushing insulators

Current transformers vacuum moulded in self extinguishing epoxy resin, for the measurement of AC currents up to 600A.

This range is also available with double-ratio up to 300-600A by primary change-over.

Current transformers vacuum moulded in self extinguishing epoxy resin for the measurement of AC up to 800A.

This range is particularly suitable when primary connection using bars is required.

Current transformers vacuum moulded in self extinguishing epoxy resin for the measurement of AC currents from 50 to 12 000A.

This range is particularly suitable for the measurement of high currents.

In addition to excellent mecanichal strength, these insulators have a high resistance to corrosive atmospheres and fire. They can be installed in any position.

Bushing insulators, with or without conductor for various applications in power generation or distribution.

RS ISOLSEC design and manufactureall types of bushing insulators or insulating parts in epoxy resin.

Moulded case current transformer for the measurement of AC currents up to 150 A.

This current transformer has been designed to meet the most demanding requirements, especially for protection relays.

Spacers can be inserted. Then rivets are replaced with screws.

Moulded case current transformers for the measurement of AC currents up to 3000A, with inner diameters from 15 to 80 mm.

They are made of a non-flamable material and have heavy insulation. They are equipped as standard with EA type mounting brackets.

These ring type current transformers are available for indoor (ORF) or outdoor use (ORFE). They have been designed to meet the requirements for metering and protection duties of:
- power transformers and auto-transformers
- HV or MV wall bushings
- GIS substation
- IPB
- Homopolar detection in neutral connections

The secondary terminals are accessible either directly in the case of indoor equipment (ORF) or through a watertight terminal box in the case of outdoor application (ORFE).

As per customer’s requirement, secondary windings can integrate time constant constraints.

Outdoor current transformers for the measurement of AC currents up to 4000A.

They are moulded in selfextinguishing resin and have heavy insulation as standard. They are equipped with a weatherproof terminal box fitted with 2 cable glands.

This range complies with the European standards EN 50014 and 50019 «enhanced safety».

The change to newer, faster and more selective protective system makes it necessary to replace existing current transformers with different output, class, ratio, number of secondaries to suit the needs of the new protection.

The best solution is to use split-core current transformers on insulated cables or outside single phase metalclad units. This solution is very economical because:

- It is not necessary to dismantle and remake the cable sealing ends on the metalclad units.

- There is no need to recommission and test the main equipment.

- It reduces the risk of damage and the length of outages at reduced costs.

These current transformers are avalaible for indoor use (CRF) or outdoor use (CRFE).

English version coming soon!

Single pole voltage transformer vacuum moulded in self extinguishing epoxy resin for the measurement of AC voltages between phase and earth up to 50 000/√3 V.

This range is also suitable for the power supply of auxiliaries up to 5 000VA.

Double pole voltage transformer vacuum moulded in self extinguishing epoxy resin for the measure of AC voltages between phases up to 36 000 V, with rated outputs up to 100 VA cl0,2 or 150 VA cl0,5.

This range is also suitable for the power supply of auxiliaries up to 2 500VA clA.

Single or double pole voltage transformer vacuum moulded in self extinguishing epoxy resin for the measure of AC voltages between phases or between phase and earth up to 36 000 V.

These compact size transformers are equiped with one or two a 6.3 A rating fuse.

This range is also suitable for the power supply of auxiliaries up to 2 500VA clA.

Voltage transformers vacuum moulded in self extinguishing epoxy resin.

This compact range is suitable for the power supply of auxiliaries in generators.