TEST STATIONS FOR 5, 10 OR 20 SINGLE OR THREE - PHASE ELECTRICITY METERS

Brief description

The meter test station allows simultaneous testing of 3, 5, 10 or 20 induction or static electricity meters. The test station could be constructed for single-phase electricity meters or for three-phase meters.

Each station consists of the following elements:

• electronic phantom load
• energy standard
• mechanical construction for suspension
• error indicators
• scanning heads with mechanics for positioning
• computer and printer

Technical data

Three-Phase or Single-Phase Reference Standard

Accuracy class 0.05 or 0.1

Generates reference output frequency, proportional to the measured energy.

Electronic Three-Phase Phantom Load

The values of the output signals are digitally synthesized, not depending on the network stability.

Output power 150/300/600 VA (depending on the number of the electricity meters)

Voltage ranges 30 V÷ 300 V (controllable at an interval of 0.1 V)

Current ranges 0.001 ÷ 100A (controllable at an interval of 0.01 A)

Phase angle 0° ÷ 360° (resolution 0.1°)

Non-linear distortion 〈 1%

Stability ± 0.1%

Universal Scanning Head EH 10

Reads the signal from a rotating disc or from an impulse light-emitting diode (liquid crystal)

Impulse output of the “Open Collector” type

Position indicator light

Digital Unit for Error Indication of Electricity Meter EI 01

Two impulse inputs

Digital error indication in %

Computer interface RS485

Mechanical construction

Meter suspension rack

Mechanisms for fixing and positioning of the scanning heads

Automatic or manual connection of the current and voltage cables

Personal computer and printer

Software package with operational features

“Meter Calibration” Mode

“Verification” Mode

Generation of test reports

Storing of the measurement results.