Fluke 434 Three-Phase Energy Analyzer

brand

Doble

model

TDR900

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