Haefely WA 2293 Quick Start Manual Download Page 4

ALL IN ONE

Printer

A simple test report can be printed with the built-in thermal 
printer.

Data Handling

The 2293 allows easy data handling. Results can be saved on 
a USB memory stick or downloaded to a computer using the 
embedded FTP server.

Remote Control

Remote control is performed through the Ethernet interface 
to integrate the device in an automated production platform.

Safety Switch

The safety switch can be turned off at any point of time to 
disconnect the device, thereby guarenteeing complete 
safety.

Quick Connection System

The twin-lock connectors and the one-time connection 
system help to reduce connecting time drastically.

Temperature Measurement

Temperature probes inputs (6 included, up to 30 with the 
2293/TEMPEXT) to monitor the test object temperature 
during resistance measurement or heat run test.

Tap Changer Control

Motorized tap changers can be remotely operated by the 
device to automate measurements.

Touch Screen

Self-guided graphical interface and touch-panel makes 
device user-friendly.

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Summary of Contents for WA 2293

Page 1: ...Designed by WA 2293 Automatic Transformer Winding Analyser Leaflet ...

Page 2: ...sistance turns ratio arbitrary phase vector group check demagnetization dynamic resistance short circuit impedance magnetic balance and heat run test heat rise and cooling curve Once connected can perform all tests in all phases on both windings More compact and lightweight solution in comparison to traditional equipment with up to 100A test current Easy operation Fully automated twinding resistan...

Page 3: ... transformers like phase shifting or arc furnace which don t follow the standard 30 phase steps can be easily measured DYNAMIC RESISTANCE ON TAP CHANGER Dynamic resistance measurement is a reliable check of the transformer tap changer Discontinuities or deviations between different taps are signs of tap changer fault SHORT CIRCUIT IMPEDANCE Changes in the short circuit impedance along transformer ...

Page 4: ...n be turned off at any point of time to disconnect the device thereby guarenteeing complete safety Quick Connection System The twin lock connectors and the one time connection system help to reduce connecting time drastically TemperatureMeasurement Temperature probes inputs 6 included up to 30 with the 2293 TEMPEXT to monitor the test object temperature during resistance measurement or heat run te...

Page 5: ...bitrary phase shifts or those that do not follow the 30 phase steps between the primary and secondary winding are common in special transformers like phase shifting rectifier furnace and traction transformers With the optional arbitrary phase shift software key 2293 SKAP the 2293 can measure turns and voltage ratio phase displacement and excitation current of these special type transformers The sp...

Page 6: ...ithout any reconnection Test results are shown graphically for a better understanding Imbalances will be graphically noted including the involved phases Short circuit impedance is a routine test done to all transformers after manufacture and specified in the transformer nameplate Changes in the short circuit impedance along transformer life is normally an indication of mechanical damages The 2293 ...

Page 7: ...vailable magnetic and liquids temperature probes 2293 TEMP2 2293 TEMP1 are easily connected to the transformer Probe configuration is done graphically oil radiator top radiator bottom ambient In addition pre configured tests according to ANSI and IEC standards are included calculating the transformer temperature in real time and informing when stabilization is reached For the cooling curve the 229...

Page 8: ...2823 Including Winding resistance measurement Demagnetization measurement Heat run Cooling curve measurement 8 measuring cables of 10 m length equipped with Kelvin probes Cable bag Test certificate Instruction manual 1 2 3 Measurement Cables Clamps Extension cable 10 m high voltage side Extension cable 10 m low voltage side 2293 10HV 2293 10LV Additional measuring cables HV LV 8 cables 3 m length ...

Page 9: ...G Birsstrasse 300 4052 Basel Switzerland 41 61 373 4111 sales haefely com www haefely com CHINA HAEFELY AG Representative Office 8 1 602 Fortune Street No 67 Chaoyang Road Beijing 100025 China 86 10 8578 8099 sales haefely com cn www haefely com INDIA HAEFELY India Service Office C o Pfiffner Instrument Transformers Pvt Ltd 176 178 2 Sarul Viholi Nashik 422 010 India 1 800 266 4052 toll free sales...

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