Circuit Breaker Testing products
Doble
TYPE 2 ROTARY DIGITAL TRANSDUCER
Type 2 rotary digital transducers translate the rotary motion of a circuit breaker’s linkage shaft to the linear motion of the circuit breaker’s main contact.
Doble
TYPE 3 ROTARY DIGITAL TRANSDUCER
Rotary transducers translate the rotary motion of a circuit breaker’s linkage shaft to the linear motion of the circuit breaker’s main contact.
Doble
VBT-75P S2
The VBT-75P S2 is Vanguard’s second generation microprocessor-based, portable 75 kV dc vacuum bottle tester. This lightweight, portable tester is designed for testing circuit-breaker vacuum bottles in the field and at the shop.
Doble
VBT-75 S2
The VBT-75 S2 is Vanguard’s second generation microprocessor-based, portable, 75kV dc vacuum bottle tester. This lightweight, portable tester is designed for testing circuit breaker vacuum bottles in the field and at the shop.
Doble
TDR9100
The Doble TDR9100 Circuit Breaker Analyzer is a state-of-the-art circuit breaker test set for testing all types of circuit breakers with efficient and accurate performance measurements.
Doble
TDR900
The Doble TDR900 is your entry-level, portable circuit breaker test set. It operates and records a circuit breaker’s contact timing, motion, velocity, main contact engagement & synchronization, trip and close coil initiation and currents.
Doble
MCCB-250
The Vanguard MCCB-250 is a programmable, high-current source designed specifically for testing molded-case circuit breakers, thermal magnetic and solid-state overload motor-protection relays.
Doble
DigiTMR S2
The Vanguard DIGITMR S2 is an inexpensive, easy to use digital circuit breaker analyzer. The DIGITMR S2 can be operated stand-alone or can be computer-controlled. It can fully analyze a circuit-breaker’s performance by testing the contact time, stroke, velocity, over-travel, and contact wipe.
Doble
CT-8000 S3
The CT-8000 S3 is Vanguard’s fourth generation EHV circuit breaker analyzer. The CT-8000 S3 is available with 3 (part number 9103-UC) or 6 contact timing channels (part number 9104-UC).
Doble
CT-7000 S3
The CT-7000 S3 is Vanguard’s fourth generation EHV circuit breaker analyzer. The CT-7000 S3 is available with 3 (part number 9021-UC) or 6 contact timing channels (part number 9100-UC).
Doble
CT-3500 S2
The CT-3500 S2 is Vanguard’s second generation, stand-alone, digital, microprocessor-controlled, circuit-breaker timer. It measures the elapsed time from the instant a breaker coil is energized to the instant of opening or closing of a circuit-breaker’s dry contacts.
Doble
CBCT
The CBCT is a variable voltage DC power supply designed specifically to test substation circuit-breaker Open and Close coils. The CBCT uses the substation’s DC power supply to electronically generate a programmable output voltage from 5% to 95% of the source voltage.