Facebook Instagram Youtube Envelope
  • +603-6141 8364
  • info@shamawar.com.my
  • Kota Damansara, Selangor
Get Quote
TRM Series
TRM Series - Image 2

TRM Series

Winding Resistance Meter

TRM Series Winding Resistance Meters are designed for field testing as well as for factory testing of large rotating machines & transformers up to 1000MVA, 765kV class under live switchyard conditions. DC Winding Resistance values of highly inductive objects like transformers, generators, motor etc. are directly displayed. A backlit LCD with a user-friendly menu sets up the instrument for the test. These meters are protected against the back-emf offered by large inductive windings.
  • 50V DC open circuit voltage for quick stabilization of current
  • Injects up to 25/50 A current and measures resistance up to 2000Ω
  • Has 3/6* Resistance channels, 3/6* Test Current channels and one Temperature input channel
  • Temperature measurement channel and   automatic  temperature correction of winding resistance for copper & aluminium windings
  • One-time connection and simultaneous measurement on three phases of primary or / and* secondary windings
  • It is not necessary to compensate lead resistance, as Kelvin’s four wire measurement method is used
  • OLTC operation and automatic measurement of resistance at all tap positions with indication of OLTC discontinuity, if any
  • Automatic and fast back-emf discharge with indication
  • Demagnetization facility available
  • 7” colour TFT display with touch screen and interactive menu offers easy user interface
  • Inbuilt memory and thermal printer Displays, prints and stores test reports in the form of text header and tabulated test results
  • Can be operated in stand-alone mode or by control through external computer
  • Powerful Windows based software, CTrans TRM offers to setup, operate, capture, view and analyse test data. Test Report can also be generated
  • Housed in rugged IP 67 class molded carrying case for enhanced transport – worthiness
  • The instrument is supplied with Test Lead Set suitable for testing EHV transformers & RTD temperature sensor
  • Type Tested as per IEC 60068, IEC 61326, IEC 61010 & IEC 61000, CE marked
  • OLTC dynamic test facility with current v/s time graph. (Optional)

 

OLTC Dynamic Testing Feature

Tap changer failures account for a significant number of failures on power transformers. OLTC failures are caused by degradation of OLTC contacts. SCOPE offers dynamic OLTC test facility with TRM to identify weaknesses in the OLTC assembly. The test is conducted in computer control mode at higher sampling speed of 10KHz

  • This test records variation in current flowing through the OLTC during tap change, against time
  • Gives % drop in current and transition time
  • The drop in current during OLTC transition indicates change in transition resistance
  • It is also possible to calculate transition time which shows health of mechanism
  • This optional feature extends the capability of the basic instrument making it ideal test equipment for testing of transformers.

TECHNICAL DATA

Full Product Specifications

ParametersTRM 14TRM 104TRM 25 / TRM 25+TRM 50 / 50+
Resistance Channels223 / 63 / 6
Temperature ChannelNot Available1
Selectable Current

Ranges

1A, 0.1A, 0.01A10A, 1A, 0.1A, 0.01A25A, 10A, 5A, 1A,

0.1A, 0.01A

50A, 40A, 25A, 10A,

5A, 1A, 0.1A, 0.01A

Resistance RangeUp to 2000ΩUp to 2000Ω Auto ranging
Best Resolution1μΩ0.1μΩ
AccuracyValue ± 0.5% ± 2 digits
Open Circuit Voltage30V DC50V DC
ProtectionBack-EMF, Over temperature, Accidental disconnection of leads
Back-emf DischargeAutomatic
DemagnetizationNot AvailableYes
OLTC Discontinuity

Indication

Yes
Temperature

Correction

Not AvailableYes (For Aluminium & Copper)
Display4 line 20 character backlit LCD5.7”, 320 x 240 pixels TFT touch screen display
MemoryNot Available100 DUT IDs with 5000 results each
Inbuilt PrinterNot AvailableThermal printer
Communication PortNot AvailableEthernet
Dimensions (mm)475 x 405 x 175475 x 405 x 230630 x 500 x 305630 x 500 x 305
Instrument Weight10 kg15 kg26 kg28 kg
OLTC Dynamic Test

Facility (Optional)

Not Available1 or 3 channels

Related Products

Quadri*Sil Horizontal Line Post Insulator

3″ Line Post, Standard Leak, Two Hole Blade, Steel Flat Base with 8″x10″ holes for 3/4″ bolts, 9″x13″ holes for 7/8″ bolts, and 14″ CL holes for 1″ bolts.The Quadri*Sil® transmission line post insulator embodies the latest in polymer insulator design that combines a patented revolutionary four-point sealing system together with electrical grade corrosion resistant direct draw fiberglass rod and proprietary silicone polymer to provide the highest quality, lab tested, and field proven insulator on the market with a 3″ core rod for increased mechanical strength.Made from hydrophobic silicone polymer
View Specifications

CFL Series – CIS

After excavation, sometimes it is confusing to identify the right cable from bunch of similar appearance cables. Cable identification is very important for safety of field personnel – Cutting a wrong cable can be fatal. So, we require a Cable Identification System having current direction facility to identify the wanted cable.Cable Identification is the most critical and safety related sequence during all the procedure of cable fault location. The correct identification of a cable out of a bundle of cables, where most of them can be cables in service, has to be carried out not only carefully, but also by means of an instrument widely eliminating the possibility of human error or misinterpretation.The Cable Identification System, CFL CIS from SCOPE is the ultimate solution for identifying wanted cable from a bunch of cables in a trench, pit or cable rack. The SCOPE’s Cable Identification System CFL CIS is designed to fulfill these most important safety aspects.
View Specifications

CFL Series – SIMF

SIM Filter is a passive filter which uses energy of surge generator for stabilizing the SIM Filter, CFL SIMF works in conjunction with SCOPE’s Cable Fault Pre Locator CFL Cable Fault Surge Generator, CFL SG Series, up to 16kV
View Specifications

Dir CT

SCOPE offers Dir CT, a CT Polarity Tester specially designed to verify correctness of polarity of current transformer cores in live EHV / UHV switch-yards. Polarity test is one of the most common yet crucial tests required to be conducted on current transformers at the time of manufacturing, site commissioning & maintenance.
View Specifications