Omicron CT SB2 Switch Box for CT Analyzer

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CT SB2 Switch Box accessory for the CT Analyzer enables fully automated multi-ratio current transformer (CT) testing without rewiring. Provides up to six secondary tap connections, automatic wiring verification, and dedicated terminals for primary resistance and secondary burden measurements—portable for on-site substation testing.

Manufacturer

Omicron

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Product Overview: Omicron CT SB2 Switch Box for CT Analyzer

The CT SB2 Switch Box is an accessory for the CT Analyzer that enables fully automated testing of multi-ratio current transformers (CTs). The CT SB2 connects to every CT tap and interfaces directly with the CT Analyzer, allowing the instrument to automatically test transformer ratios across all secondary winding combinations—without manual rewiring.

The CT SB2 can sit beside the CT Analyzer or mount directly to it. With a combined system weight of about 11 kg, it’s a portable, field-ready CT testing solution ideal for mobile, on-site commissioning and maintenance work.

Key features

Up to six secondary connections for multi-ratio current transformers
Automatic wiring verification to confirm correct connections before testing
Dedicated terminals for primary resistance measurement and secondary burden measurement

Applications

Automated testing of multi-ratio current transformers
Fully automated CT testing with no tap rewiring required
Supports workflows related to offline power cable testing and online partial discharge monitoring of power cables