Project Description

HAEFELY HIPOTRONICS (WA-2293 Winding Analyzer)

Features

• Multipurpose winding analyzer: transformer winding resistance, turns ratio, dynamic resistance on tap changer, type detection, arbitrary phase ratio measurement, demagnetisation, short circuit impedance, magnetic balance and heat run test (heat rise and cooling curve) in one instrument.
• Setup made easy – simple “one-time-connection” system: once connected can perform all tests in all phases on both windings*.
• Easy operation on touch screen interface with full graphical test visualization.
• Unique simultaneous winding magnetisation method for winding resistance measurements, equivalent to traditional equipment with up to 100 A
test current.
• Automated tap changer test by dynamic resistance (with optional tap changer controller).
• Advanced procedure for turns ratio and phase displacement measurement allows measurement also on non regular phase displacements (arbitrary phase shifted transformers).
• Demagnetisation function – transformer is returned to a demagnetized status after measurement.
• Automatic magnetic balance test for magnetic core fault detection.
• Short circuit test at reduced current for mechanical damages detection.
• Tap changer control signal.
• Data transfer over USB memory-stick or LAN.

Specification

Ratio measurement Resistance Measurement
Max. Supply Current ACΩ 1 APeak / 700 mARMS Max. Measuring Current DC 32 A (user selectable)
Max. Meas. Voltage AC 95 VPeak / 67 VRMS Max. Charging Voltage DC 100 V
Range 1.0 … 100’000 Range 0.1 μOhm … 300 kOhm
Ratio range Accuracy (1) Resistance range Accuracy (1)
1.0 … 100 0.05% 0.1 μOhm … 300 μOhm 0.1% ± 0.5 μOhm
100 … 2’000 0.1% 300.1 μOhm … 30 kOhm 0.1%
2’000 … 20’000 1% 30.01 kOhm … 300 kOhm 1%
20’000 … 100’000 5%
Phase (Ratio measurement) Typical Accuracy (2) Temperature
1.0 … 500 ±0.25° Temperature sensor
500 … 10’000 ±1.00° Type PT 100 Class A
Phase (Clock number detection) Accuracy (2) Temperature sensor range Accuracy
1.0 … 500 ±0.05° -50 …. +200 o C + 0.15o + 0.2% t
Measuring device range Accuracy
-50 …. +200 o C + 0.25oC
size 20.5″ x 16.7″ x 8.5″ (39bs)
Shipping Weight 42
Power Supply 95 to 240 Vac 50/60 Hz
Manufacturer Haefely Hipotronics
MPN 2293