TESTING EQUIPMENTS
Transformer Winding Resistance Test Set (TRM-50)
Brand: Teldar Instruments Co.
Applications: Can perform speedy and accurate measurement of winding resistance of inductive apparatus such as Power Transformers, Motors and Generators. It can also measure the contact resistance of HV circuit breakers, excitation current test, busbar joints, winding resistance of instrument potential transformers and other low resistance specimens.
Automatic Oil Dielectric Test Set (DBV-100A)
Brand: Teldar Instruments Co.
Applications: Can measure dielectric breakdown voltage of insulating oils used on transformers, switchgears, circuit breakers, bushings, capacitors, and other electrical apparatus.
Three-Phase Transformer Turns Ratiometer
Brand: Teldar Instruments Co. TTR-3000, Huazheng HZBB-10B
Applications: Can measure of turns ratio and vector group of three-phase power and pad-mount transformers. It can also test turns ratio and polarity of single-phase distribution transformers, PT’s and CT’s.
Circuit Breaker Timer Test Set
Brand: Teldar Instruments Co. CBT-6P, Huazheng HZ-7411
Applications: Can detect problems in the circuit breaker operating mechanism. Analyzer information on the circuit breaker operating mechanism is provided in form of charts or graphs which can be used to assess the mechanical and electrical condition of the circuit breaker.
Capacitance and Dissipation Factor Test Set (CDF-12A)
Brand: Teldar Instruments Co., Huazheng HZ-2000H
Applications: Can measure high-voltage insulation of high-voltage circuit breakers, transformers, cables and potheads, bushings, windings of rotating machines and protective surge arresters.
Contact Resistance Test Set (CRT-200)
Brand: TELDAR INSTRUMENTS CO. CRT-200, Huazheng HZ-5200
Applications: Excessive corrosion of contacts is detrimental to the breaker performance. Can apply DC to measure the contact resistance or voltage drop across the closed contacts.
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