Kuhlman PSZ–981 Current Transformer

Manufacturer: Kuhlman

The core and coil assembly is wound and encapsulated in a molded cast resin with various window sizes from 6” up to 44”.

The coil is specially designed and arranged for 3-phase conductor use to prevent localized saturation and/or nuisance tripping. The secondary terminals have ¼”-20 studs with associated hardware located inside a removable terminal box with two (2) 1” NPT conduit hubs.

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Features Applications Model

The PSZ-981 can provide up to a C200 relay accuracy (see ratings specifi c to each ratio). The transformer is accurate through its Rating Factor, and can be used continuously to this level.
The PSZ is designed for mounting over the primary conductors of a three-phase system. The unit can be mounted in a variety of ways (see page 6 for diagrams) as well as an option for four mounting holes molded in with two holes near the secondary terminal box and two on the opposite end.

The PSZ-981 indoor/outdoor zero-sequence current transformer is a 600 volt, 10kV BIL rated unit and is designed to fi t over a variety of specifi ed primary conductor sizes. The insulation of the three phase primary conductors provide the dielectric protection for the zero-sequence CT. Primary current ratios are available from 50:5 to 200:5 at 60 Hertz (Hz) with a Rating Factor of up to 3.0. This dry-type, solid-cast, zero-sequence CT will operate with relay accuracy for ground fault detection applications.

Mfr. Part No.	Description
PSZ–981	Indoor/Outdoor 600V, 10kV BIL, Single Ratios

Kuhlman PSZ–981 Current Transformer

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