3 Phase Injection Transformer

The Gayrad 3 Phase Primary Injection Transformer is specifically designed for testing differential schemes with 3-phase current. By connecting all three phases to a busbar, cable, line, or transformer scheme under test, it ensures precise testing by verifying CT summations and allowing for out-of-balance simulations through crossing or shorting the appropriate CT secondaries. It is a reliable, efficient tool for maintaining and verifying power system integrity.

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• High 13.8 KVA output power for comprehensive testing.
• Efficient 20-second operation duty cycle with a manageable recovery period.
• Selectable secondary voltage options for versatile applications.
• Durable and easy-to-connect heavy current leads and clamps.
• Dyn11 vector group compatibility for industry-standard testing.

• Output Power: 13.8 KVA
• Primary Voltage: 415V (supplied via a standard 32A 3-phase outlet)
• Secondary Voltages: 12V, 15V, 17V, 20V (selectable via independent taps on the secondary)
• Vector Group: Dyn11
• Maximum Output Current: 400A
• Duty Cycle: 20 seconds on, 2 minutes off
• Connection Leads: Heavy, flexible leads with large current clamps for convenient connection

• Provides accurate testing for differential schemes using 3-phase current.
• Allows for verification of all CT summations, ensuring system reliability.
• Enables the simulation of out-of-balance conditions for thorough testing.
• Convenient and flexible connection with robust leads and clamps.
• Suitable for use with a standard 3-phase 32A outlet, offering flexibility on-site.

• Testing differential schemes in substations, power plants, and transmission systems.
• Verifying CT summations for busbars, cables, lines, or transformer schemes.
• Simulating out-of-balance conditions for robust system diagnostics.
• Ideal for rural and remote power testing scenarios where reliability is critical.