Offering you a complete choice of products which include transformer winding resistance meter, digital winding resistance meter, winding resistance meter - trm 25+ and motor winding resistance meter.
TRM 25+ is designed to work in live EHV switchyard conditions, ensuring the operator’s safety and repeatability of results. Maintenance time saving is ensured by one-time connection to transformer with resistance measurement of six windings in a single click, measurement of resistances of all taps with automated tap change and demagnetizationfacility.
Features:
Can measure DC winding resistance of large rotating machines, highly inductive test objects likeTransformers, Generators and Motors etc.
25A DC current makes it possible to measure low resistances with high accuracy
One time connection to All windings of primary and secondary. Six windings measurement in a single click reduces measurement time
Uses Kelvin’s 4 wire method for accurate resistance measurement
Change in winding resistance, short or open windings can be detected from measured values
Automatic temperature measurement and temperature corrected value calculation
Measurements of winding resistance of all taps of phases in one go
Recoding, printing and storage of results
OLTC contact opening i.e.check discontinuity (while changing tap from one position to another)
Specifications:
No of Measurement Channels: 6 Current channels, 6 Voltage channels, 1 Temperature channel
Current Ranges:25A, 10A, 5A, 1A, 100mA, 10mA
Resistance Ranges: Up to 2000Ω (Auto ranging)
Accuracy: Value ± 0.5% ± 5 counts
Open Circuit Voltage: 50V DC
Display & User Interface: 5.7” Resistive TFT touch screen
Printer: 58mm, Inbuilt thermal printer
Communication & Data Port: Ethernet for PC communication & USB for memory stick connection
Storage Memory: Non-volatile memory to store 50000 records
OLTC Test Current Ranges: 25A, 10A, 5A
Tap Changer Test: Detects discontinuity during tap changer test
OLTC Test Facility (Optional): OLTC test facility with current v/s time graph, single or Three Phases simultaneously. Available in control through PC option only.
Protection: Back EMF, Mains supply failure, Shut down of power source on Over voltage, Over current, Over temperature
Indications: Polarity Reversal, Test Connection Continuity and Discharge
Operating Temperature: -20°C to 55°C, 95% RH (non condensing)
Storage Temperature: - 40°C to 60°C
Input Supply: 110V AC ±15% Or 220V AC ±15%, 50/60 Hz ±10%