System for measuring the ac equivalent series resistance of the conductor

摘要

(57) Abstract This invention, especially heavy-current, namely, electric current of several thousand amperes (approximately 3000A) regards the system and the method of measuring, the interchange equivalent series resistance of the conductor when it transmits electricity. The measurement voltage where this system is connected by the aforementioned conductor, possesses only the actual component, at the same time the aforementioned alternating current the measurement electric current which possesses specified relationship is connected by the forwarding possible electric current sensor and the aforementioned electric current sensor, possesses the aforementioned measurement electric current and established conversion ratio, is measured the aforementioned measurement electric current by the electric current/voltage transmitter and the aforementioned transmitter which are converted to the voltage which corresponds, the description above installs the adjustment possible divided part of the voltage which corresponds in specified length of the forwarding possible potential divider and the aforementioned conductor, at least possesses the actual component the forwarding possible voltage sensor and the aforementioned measurement voltage andThe aforementioned adjustment possible divided part is received, the aforementioned measurement voltage and showing the equilibrium between the actual component of the aforementioned adjustment possible divided part possibility have with the null indicator and value and the description above of the aforementioned adjustment possible divided part value of the voltage which corresponds the forwarding possible voltmeter.