AEMC DTR 8510 Digital Transformer Ratiometer

SKU
2136.50_
Manufacturer:
AEMC
AEMC

Key Features:

  • Ratio Testing: PT/VT from 0.8000:1 to 8000:1 and CT from 0.8000 to 1000.0 (Auto-Ranging)
  • Tests performed by exciting the primary and reading the secondary; provides safer conditions for the operator on step-down transformers
  • Continuity test indicates open or loose (high resistance) terminal connections
  • DC test mode eliminates errors due to magnetic build up
  • Stores up to 10 primary/secondary nameplate voltages to use in comparing test results
  • Displays ratio, test current, winding polarity, and deviation from nameplate voltage or ratio
  • Stores up to 10,000 test results
  • DataView® software included which allows configuring the instrument, downloading stored measurements and printing of test results in a report format
  • Display warns of incorrect lead connection, reverse polarity, open and short circuits
$3,475.00

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The DTR® Model 8510 is a portable digital transformer ratiometer designed for on-site testing of power, potential and current transformers. When connected to a non-energized transformer, the DTR® accurately measures primary to secondary turns ratio, while simultaneously displaying polarity and excitation current.

 

The Model 8510 is a second-generation instrument incorporating the latest technology, improving on its highly successful predecessor the Model 8500.

 

The DTR ® is fully automatic and uses the IEEE C57.12-90™-2006 test method. No user calibration, range selection, hand cranking or tedious balancing is required. At each measurement, the DTR® automatically checks for open windings, connections, circuit breakers, short circuits (excess excitation current), incorrect test lead placement, and reverse polarity. Measurements are displayed quickly and accurately.

 

The DTR® is designed with operator safety in mind. Tests are performed at low voltage and, unlike other ratiometers, step-down excitation is employed. This method, in conjunction with an integral H/X reverse protection circuit, guards against the generation of hazardous test voltages normally associated with other transformer ratio measurement instruments.

 

A large, dual line alphanumeric LCD with adjustable contrast and backlight guarantees day/night readability. Power is supplied by integral NiMH battery. Batteries are charged by an external smart charger. Both rugged and reliable, the Model 8510 is built into an attractive, sealed structural polypropylene case designed to withstand the rigors of field use.

 

Up to 10,000 tests can be stored in the DTR's internal memory and downloaded to a PC for analysis and report generation using the included DataView® software.

 

Constructed using only the highest quality electrical and mechanical components, the DTR® sets the standard in advanced design, engineering and workmanship, and it will provide the user with years of accurate and reliable measurements and hassle free test report printouts.

MODEL

DTR® 8510

VT/PT Ratio Range

Auto-Ranging 0.8000:1 to 8000:1

CT Ratio Range

Auto-Ranging 0.8000 to 1000.0

Accuracy*

Ratio <10 to 1: ±0.2%  of Reading

Ratio 0 to 1000 to 1: ±0.1%  of Reading

Ratio >1000  to 1: ±0.2%  of Reading

Ratio 5000 to 8000.0: ±0.25%  of Reading

Excitation Signal

VT/PT Mode: 32Vrms maximum

CT Mode: 0 to 1A, 0.1 to 4.5Vrms

Excitation Current

Display

Range: 0 to 1000mA;

Accuracy: ±2%  of Reading ± 2mA

Excitation Frequency

70Hz

Measurement Method

In accordance with

ANSI/IEEE C57.12.90™-2006

Display

LCD 16 character, 2 line, large format,

LED backlight, day/night visible

Languages Supported

English, Spanish, French, Italian,

German, Portuguese

Communication

Optically  isolated  USB 2.0

Data Storage

Stores up to 10,000

complete measurements

Power Source

Two rechargeable 12V NiMH batteries

(included)

External Charger

90/240V, 50/60Hz (smart charger)

Battery Life

Up to 10 hours continuous operation;

May not be used while recharging;

Low battery LED/LCD indication

Charging Time

<4 hours

*23°C ± 5°C, 50 to 70% RH, full battery charge, no external fields or noise.

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  • Power transformers
  • Potential transformers
  • Current transformers