The TDR9000 is a state-of-the art Circuit Breaker Test System engineered to test all types of circuit breakers. The modular construction of the TDR9000 allows testing of simple circuit breakers, to very complex circuit breakers, using a single, field-portable and rugged instrument. The modular design allows users to acquire a Circuit Breaker Test System matched to today's specific testing applications and permits easy upgrades in the field to expand the capabilities to test different or more complex apparatus. The modular design results in complete usage of its capital investment and simultaneously provides an upgrade path to test future circuit breaker designs.
The TDR9000 provides testing of up to eight breaks per phase, for a total of 24 main contacts simultaneously. The EHV The EHV Contact Timing Module measures the opening and closing times of both the main contacts and the insertion resistor contacts with 100 μs second resolution. During a separate test, it measures the capacitance of grading capacitors. This substantially reduces the required number of channels required for circuit breaker testing. The high speed data acquisition circuitry, coupled with interference suppression specifically designed for electromagnetic interference substation environments, provide accurate test results and records contact bounce time as low as 60 μs.
The OCB module measures the timing of main contact and resistor switches during closing or opening of an OCB Circuit Breaker. This module also measures the value of pre-insertion resistors, if the resistance value option is present.
The Motion module records the motion of the Circuit Breaker mechanism through a Doble Digital Rotary or Linear Transducer. The input connection for the digital transducer to TDR9000 is through a 25-pin "D" connector.
The EHV module measures timing of main contacts and resistor switches during closing or opening of an EHV Circuit Breaker. It measures two breaks per phase for threephases of the breaker. This module also measures the value of Pre-Insertion Resistors if the resistance value option is present.
The Event Module measures the timing of auxiliary contacts and analog signal. Analog channels can record voltage or current. Auxiliary channels can record wet or dry contacts.