Transformer riser current transformer

Product description

This product is used in conjunction with other equipment (such as: PASS, circuit breaker outlet bushing, wall bushing, switch bushing, busbar, etc.), and is mainly used to provide current measurement signals and protection signals.

The current transformer of the transformer riser is composed of the secondary winding of the current transformer and the shell.

The secondary winding can also be supplied separately, supporting the transformer outlet bushing, or used in the SF6 current transformer.

Guideline

GB 1208- 2006 "Current Transformer"

GB 20840.1-2010 "Transformer Part 1: General Technical Requirements"

Product number

LRB; through-type current transformer with protective winding L: current transformer

R: Through type (or built-in type) B: With protective winding

Features

Excellent sealing performance, suitable for indoor and outdoor use

Strong technical force, can design and manufacture various secondary windings with special requirements

Conditions of Use

· Both indoor and outdoor

·Ambient temperature: -50℃~+50℃

Main performance indicators

·Rated primary current: 50~1200OA

Rated secondary current: 5A, or 1A

·Rated capacity:≤100VA

·Measurement winding accuracy class: 0.5, 0.5S, 0.2, 0.2S

·Protection winding accuracy class: 5P, 10P, 5PR, 10PR, TPY, etc.

Electrical test

Polarity test, error test, volt-ampere characteristic test, open circuit voltage test, etc.

Operation and Maintenance

When running, one end of the secondary winding should be grounded and not open to avoid high voltage

·Maintenance-free

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·When ordering, please provide: rated current ratio, accuracy level, secondary load, inner and outer diameter, height and other parameters.

·For the protection winding, also need to provide accurate limit factor.

·For TPY-level protection windings, parameters such as duty cycle, short-circuit coefficient, and time to maintain accuracy should also be provided.