The CVC-110ER is a combination unit that consists of a current

transformer (CT) and voltage transformer (VT) in one body. It is

designed for metering applications and can be pole-mounted or

used in substations. The combined unit provides the customer with

both cost and space savings, as well as reduced installation time.

The current transformer element is highly accurate and is ideal

for use in cogeneration and in applications where there are large

power exchanges, as it preserves stated accuracies with loads

ranging from one percent of the full rated current through the rating

factor. Due to its wide operating range in conventional metering

applications, the CVC-110ER provides greater value for the utility

customer by reducing inventory requirements.

Construction

In the current transformer, primary and secondary windings are

assembled around a toroidal wound core. The voltage transformer

primary and secondary coils are wound using special winding and

shielding techniques for improved voltage stress distribution. Each

coil is insulated with mylar fi lm to provide a high dielectric strength

between layers. The coils and core are combined to create a

complete winding structure that is assembled to a support frame.

The entire assembly is vacuum cast in polyurethane for insulation

and protection.

Terminals

Primary terminals are electro-tin plated copper. The current

transformer secondary connections are clamp-type and

accommodate #14 to #1 AWG wire. The voltage transformer

secondary connections are clamp-type and accommodate #13

to #3 AWG wire.

Junction box

The junction box, provided with 1" conduit connections on three

sides, encloses the secondary terminals.

Baseplate

The baseplate is constructed of corrosion-resistant aluminum

and is secured to the encapsulated base support.

Test reports

IEEE test reports are stored electronically and can be e-mailed

in various formats at the time of shipment.

Standards

This unit meets all applicable IEEE and NEMA standards and

can be made to meet other standards, such as CSA and IEC,

as requested.