Electrical measuring instruments >> combination devices

VAF-85

9 279 RUB
3 712 UAH
available:
6 pieces

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Voltamperephasemeter VAF-85

Also this device can be called: VAF85, VAF 85.

 

VAF-85 voltamperephasemeter is intended to measure the values and phases of the alternating voltage and current and determining the phase sequence.

With meter of magnetoelectric system.

Measured current - 0.2 A to 10 A.

 

Device VAF-85 has a phase tester, which is a three-phase stator resolver and locked rotor. Rotor can be rotated by hand using a limb. Depending on the position of the limb changes voltage phase, the induced in the rotor winding, relatively voltage synchro stator voltage monitoring.

 

On the VAF-85 positioned limb dephaser inscribed with the division in degrees, and button his brakes.

Obverse meter has four switches:

- V1 switch has two positions - current measurements with a break and without breaking the circuit using electrical mites;

- V2 switch has two positions - measured values and the definition phase;

- double switch V3-B4 - to change the limits of measurement.

 

The upper part of VAF-85 derived terminals A, B, C for connection to the three-phase system voltage phase shifters. Terminals U, * and I are used to measure voltages and currents. For * and I terminals connected electrical mites which constitute a current transformer with a split magnetic core, a primary winding of which is carried out with a current.

 

The position of the limb can determine the phase of the measured current - the unit shows the angle between the voltage and current vector Uab or voltage, filed on clips * - I or * - U. This condition must be satisfied synchronous three-phase system voltages synchro stator and the measured current or voltage (powered by the same network).

Photos: VAF-85

VAF-85 device image.
VAF-85 device image.
VAF-85 device image with closed lid.
VAF-85 device image with closed lid.
VAF-85 device image.
VAF-85 device image.
VAF-85 front view.
VAF-85 front view.
VAF-85 side view.
VAF-85 side view.
VAF-85 rear view.
VAF-85 rear view.
VAF-85 bottom view.
VAF-85 bottom view.
VAF-85 scheme of internal connections.
VAF-85 scheme of internal connections.


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