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pt_ELECTRICAL_2 valiu_2017 PONOVO GLOBECORE CA

Winding Resistance Meter TRM 14

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Product: Winding Resistance Meter
Model: TRM 14
Manufacturer: SCOPE
Description

OverView:

  • Designed to measure DC winding resistance of highly inductive test objects - Transformers, Generators, Motors etc. for field testing as well as for factory testing
  • Designed to work reliably under live EHV switchyard conditions ensuring operator's safety and repeatability of results
  • Winding Resistance Meter designed for large transformers up to 1MVA
  • Quick stabilization of reading even on large test objects by deploying high open circuit voltage
  • Quick & simple tool to check the condition of OLTC-discontinuity during tap change, if any
  • Direct display of Resistance values
  • Available for continuous testing - powerful, truly continuous DC source with excellent heat management through forced cooling
  • Total instrument and human safety ensured through automatic & quick back-emf discharge after test completion
  • Discharge possible through either voltage or current lead in case of accidental lead disconnection -operator risk is minimized

Features:

  • Injects test current of 1A DC for measuring winding resistance as high as 20Ω
  • Has two voltage input (resistance) channels and one test current channel
  • Saves down time, measurement of resistance of 2 windings simultaneously
  • In-built stable DC source and direct display of resistance value
    • Single compact instrument
    • No need to spend time in bridge balancing
    • No need of manual calculation
  • Backlit graphic LCD with a user-friendly menu sets up the instrument for the test
  • Configuration
  • Permits enable / disable of measuring channels
  • Test setup: Current range selection, resistance range selection
  • Easy to use - self guided operation through interactive menu and keyboard
  • No need to compensate lead resistance as Kelvin�s Four wire measurement method is used
  • Housed in rugged case enhancing transport-worthiness

Specification:

Resistance Channel

Two

Temperature Channel

Not Available

Current Range

1A, 100mA & 10mA Selectable

Resistance Range

20mâ?¦, 200mâ?¦, 2â?¦, 20â?¦, 200â?¦ & 2000â?¦

Best Resolution

1μΩ

Accuracy

Value ± 0.5% ± 2 Digits

Display Resolution

Resistance : 4½Digit (1 count in 19999 counts), Current : 3½ Digit (1 count in 1999 counts)

Open Circuit Voltage

30V DC

Protection

Back EMF, Over Temperature, Accidental Disconnection of Lead

Discharge

Automatic

OLTC Test

Yes

Temperature Correction

Not Available

Instrument Display

4 Line, 20 Character, backlit LCD. Resistance & Test Current.

Memory

Not Available

Inbuilt Printer

Not Available

PC Connectivity

Not Available

Power Supply

230V AC ±15%, 50Hz ± 10%, 1 Phase

Dimension

475 x 405 x 175mm

Instrument Weight

10kg