Circuit Breaker Schematics
BETA Module. Quick access to essential control drawings for circuit breakers.
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Circuit Breaker Terms & Definitions
Dynamic quick reference of over 150 circuit breaker terms and acronyms.
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Circuit Breaker Testing Simulator
The breaker testing simulator allows you to practice your high current testing skills in a no-risk computer environment.
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Contact Resistance DB
Compare contact-resistance to real world values submitted by TestGuy members.
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Digitrip GF Pickups
Find expected Ground Fault pickup values for most Cutler-Hammer/Westinghouse Digitrip RMS trip units.
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Low-Voltage Circuit Breaker Test
Electronic form for testing low-voltage power circuit breakers in accordance with NETA standards.
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MVA Calculator
Find MVA rating of a circuit breaker using nameplate ratings.
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Trip Unit TCC Calculator
Generate test currents and generic trip times for LSIG trip units, includes tolerance for pickup and time values.
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Vacuum Circuit Breaker Test
Electronic form for testing medium-voltage vacuum circuit breakers in accordance with NETA standards.
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