FIELD: measuring equipment engineering, possible use for calibrating constant high voltage dividers in broad range of voltages used for commercial accounting of electric energy.
SUBSTANCE: device for calibrating constant high voltage dividers contains a standard high voltage resistive divider of constant voltage with possible closure of some of resistive elements, constant voltage source, voltage comparator in form of two transformers of constant voltage to proportional alternating voltage and electromagnetic current comparator. Each transformer contains a modulator, an alternating voltage amplifier, an inductive voltage divider and a demodulator, appropriately interconnected in combined electric circuit.
EFFECT: creation of technical solution which ensures increased precision of calibration of constant high voltage dividers in broad range of measured values when using low stability constant voltage sources, and also structural simplification of calibration device.
1 dwg
