- The OMICRON CP CB2 is a high-performance current amplifier designed to expand the capabilities of OMICRON’s CPC 100 test system, enabling primary injection tests that require output currents of up to 2000 A. This accessory connects directly to the test bars via high-current cables and communicates with the CPC 100 via a control cable, allowing the test current to be pushed far beyond the standard limits of the base unit without compromising accuracy. The CP CB2 is ideal for demanding verification tasks, such as current transformer tests, high-load relay tests, and contact resistance measurements on circuit breakers or grounding systems, ensuring reliable results with low loss and high repeatability in the field or at substations.
Frequently Asked Questions
What is the main function of the CP CB2 current amplifier?
The CP CB2 is an accessory designed to increase the output current of the CPC 100 system up to 2000 A AC, enabling primary injection tests with higher current demands, particularly when testing current transformers, protective relays, and other high-load equipment.
How does the CP CB2 integrate with the CPC 100?
The CP CB2 connects physically to the CPC 100 system via a long control cable, while the shorter high-current cable is mounted directly on the busbars of the device under test. This configuration minimizes power loss and enables efficient current flow during high-current testing.
What types of tests benefit from the use of CP CB2?
Applications that require high primary currents benefit particularly from the use of the CP CB2, such as:
Primary injection for current transformer testing
High-load relay testing
Verification of contact resistance in switches and disconnectors
Grounding and power distribution tests with high-current requirements.
What advantages does the CP CB2 offer over using the CPC 100 without an amplifier?
By using the CP CB2, the CPC 100 achieves much higher currents (up to 2000 A), which expands its diagnostic and validation capabilities for assets under heavy loads. In addition, the amplifier’s physical proximity to the test point reduces conductor losses and improves the accuracy and repeatability of measurements.
What technical considerations should be taken into account when using the CP CB2?
When planning tests with the CP CB2, it is important to:
Ensure short, robust high-current connections to minimize losses and heat generation
Select the appropriate test modes on the CPC 100 so that it recognizes the external amplifier
Use test configurations that take into account the amplifier's thermal and power capacity when operating near the permitted 2000 A.
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