The Motwane make XWRM-10 is a dual channel, 10A rated, Transformer Winding Resistance Meter designed and developed after extensive research on challenges and requirements of testing of various Transformer winding resistance. The instrument has One Current channel and two resistance Channels. The instrument provides a large open circuit voltage of 42Volts, for fast charging of the highly inductive windings of transformers, to provide stable resistance values in minimum time. The XWRM-10 is intended to replace complex bridge set up with a single compact instrument. The XWRM-10 is based on 4-wire measurement method to measure low resistance accurately. The instrument is well protected against inductive kickbacks offered by the inductive windings and gives stable reading on various types of transformers. The XWRM-10 is user friendly and easy to operate. The test information is displayed along with real time data on large LCD display with backlit during TEST ON condition. The test cables are provided with specially designed industrial grade heavy duty crocodile clips for better grip and durable performance in harsh conditions. The instrument and the accessories come in trolley mounted heavy duty casings for easy transportation on the fields. Frequent testing of Transformers for winding resistances can yield huge revenue savings, because small increase of winding resistance, leads to huge full load losses.
Features
Simultaneous display of dual channels for resistance and single channel for current
Seven measurement Ranges: 2m Ohm to 2000 Ohm
Four test current Ranges: 10A, 1A, 100mA, 10mA
Minimum resolution of 0.1µU with accuracy : ±(0.2% of reading + 5 counts)
OLTC Testing
Special mode for conducting heat run test
Built in memory storage up to 99 records
4½ digit reading for resistance measurement
Custom built backlit LCD with sealed soft touch membrane keypad
Data exchange to PC through USB interface
Discharge Indication
Software Features :
Online data acquisition
Graph plotting for heat run test
Remote operation
Test report generation
Dynamic Link Library (DLL) for integrating instrument in customize software development