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Doble TDR900 Circuit Breaker Test System

Doble TDR900 Circuit Breaker Test System

Manufacturer: Doble

Model: TDR900

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Product Details

The Doble TDR900 Circuit Breaker Test System is a precision instrument for testing all types of circuit breakers.  It detects main contact and resistor switch timing errors for up to four breaks per phase with motion measurements, at a resolution of 100 μs. 


The Doble TDR900 Circuit Breaker Test System controls circuit breaker trip and close commands, allowing you to perform the following operations: 

  • Trip (O) 
  • Close (C) 
  • Reclose (O-0.3s-C) 
  • Tripfree (CO) 
  • O-CO 
  • O-0.3s-CO 
  • First Trip (O) 
  • Slow Close (C) 
  • Self-diagnostics

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