Purpose of the development: For maintenance, repair, adjustment, testing of power transformers, both in laboratory and in field conditions. The execution of the product corresponds to the climatic category UHL 4.2 in accordance with GOST 15150-69.

Technical characteristic: Measuring range of AC power, A - from 0.01 to 1; from 1 to 10.0. Limits of measurement of alternating current. A - 1; 10. Limit of the permissible absolute basic error of measurement of alternating current, A no more than - 0,0021х + 1 е.м.р. Measuring range of AC voltage: phase alternating voltage, V - from 1 to 100; from 50 to 400. linear alternating voltage, V - from 5 to 150; from 100 to 600. Limit of the permissible absolute basic error of measurement of alternating voltage, V not more than - 0,002хх + 1 е.м.р. Active power measurement range, W-0.1 to 4000. Limit of the permissible absolute basic error of measurement of active electrical power, W, not more - 0,005-17х-1х + 1 е.м.р. Range of measurement of resistance to direct current, Ohm - from 0,001 to 1900. Limit of absolute error of measurement of resistance to a direct current, Ohm - 0,005-Кх + 1 е.м.р. Power supply, from the alternating current network - voltage (220 ± 22) V, frequency 50 Hz. Overall dimensions, mm, not more than - 400x180 * 320. Weight, kg, no more than - 6. Average operating time to failure (failure-free operation), not less than, hours - 10000. Calibration interval, no more than, months - 12.

Advantages over analogues: - measurement of current and loss of idling at small and rated excitation voltages of transformers; - measurement of current and short-circuit losses; - measurement of the transformation ratio; - determination of the winding connection group of three-phase transformers and polarity; - outputs of single-phase transformers; - measuring the resistance of the windings of transformers to direct current; - during the measurement, the asymmetry, non-sinusoidal and excitation voltage frequency are monitored.

The development stage readiness: Introduced in production

Description of the development:
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The K540-4P, like its previous version K540-3, has one function, but the K540-4P device was originally designed for convenience in the field. (The letter "P" in the name of the device means the word "field") So the K540-4P is equipped with an internal source three-phase and single-phase! voltage, the circuit of switching transformer outputs when measuring the idling loss at a reduced voltage and a system of forrun current supply when measuring the resistance of the windings of transformers. The device K540-4P can be adapted for measuring the parameters of transformers and other groups of winding connections to individual order.

corresponds technical description
Conforms to technical characteristic

Possibility of transfer abroad:
Realization of finished commodity
Joint production, sale, exploitation

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua