HF processing (High-Frequency processing)
Automation and monitoring in electric power industry
Spare parts for high-voltage equipments
Instruments and devices
Equipment for SF6 (Sulfur Hexafluoride)
Railway equipment
Telecommunication equipment
Technological equipment


аrt.57
Parma VAF-A(S) can be used for complex testing of generator, transformer, line protection, in current and voltage transformer circuits, adjustment of phase-sensitive relay protection circuits, etc.
Features of the PARMA VAF-A(S) voltamperephasemeter: Highly accurate measurement of alternating current from 4 mA to 40 A; High accuracy in measuring the phase shift angle at a voltage of 0.3 V and a current of 4 mA; A magnet built into the device body, allowing you to fix it on a bag with a built-in metal plate or on any metal surface; The body is made of impact-resistant plastic; A high-contrast display with large font allows you to read data from the device in severe frost and in the sun; Adjustable display brightness; Powered by 4 NiMH AA batteries (included) or batteries; Continuous operation time from batteries is at least 6 hours; Network power supply with a microUSB connector; Extended range of ambient air temperatures under operating conditions - from -20 to +55 ° C; Small overall dimensions – no more than 156x98x36 mm, weight – no more than 1 kg (with accessories).
- ACS voltage and AC current;
- ACS voltage and first harmonic AC current;
- Voltage and AC frequency;
- Phase angle between voltage and voltage;
- Phase angle between current and current;
- Phase angle between current and voltage;
- Phase angle between voltage and current;
- Active, reactive, and apparent power;
- Power factor – cos φ;
- Continuity testing of electrical conductors and circuits in the electrical network with voltage protection in the monitored circuits;
- Determination of phase sequence in three-phase systems with nominal phase-to-phase voltages ranging from 100 to 380 V, with or without a midpoint.
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