快速報價: Vanguard TRM-403

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Vanguard TRM-403

Three Phase Winding Resistance Meter; with Demagnetization, 40 A

型號

TRM-403

產品類別

Electrical & Power Quality

製造商

Vanguard

配置型號包含以下特性:

Electrical & Power QualityTransformer and Motor Testing

配置

技术指标

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產品總覽

The TRM-403 is a three phase transformer winding resistance meter that allow the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase.

The TRM-403 can provide a fast and stable reading of very large transformers by utilizing a 60Vdc power supply. It is capable of outputting a selectable test current from 1A to 40A. Since the TRM-403 can accurately measure resistance from 1 micro-ohm to 500 Ohms, it can be used as a micro-ohm meter to measure EHV circuit breaker contact resistance, or for any low resistance measuring application.

Key Features

Perform three phase test on a transformer without the need to switch cables

Can provide individual Delta winding resistance values

Can provide individual Wye (with no neutral) winding resistance values

Demagnetize transformer after test

Selectable test current from 1A to 40A

Computer control via RS-232C, USB, or Bluetooth interface

Built-in 2.5″ wide thermal printer

Specifications
TRM-403 40 A Three-Phase Winding Resistance Meter with Demagnetization
Features	Parameters
Type	Portable transformer winding resistance meter
Dimensions	21” W x 17” H x 9” D (53 cm x 43 cm x 24 cm)
Weight	35 lbs (15.8Kg)
Operating Voltage	100 – 240 Vac, 50/60 Hz
Resistance Reading Range	1 micro-ohm to 500 Ohms
Accuracy	1 – 19,999 micro-ohms: ±0.5% reading, ±1 count 20 – 999 milliohms: ±1% reading, ±1 count 1 – 500 Ohms: ±1.5% reading, ±1 count
Test Current	1-40A in 1A increments
Test Voltage	60 Vdc charging, 18V DC max during measurement
Input Channels	4 input channels for measuring resistance
Display	Back-lit LCD (128 x 64 pixels) Viewable in direct sunlight and low light levels
Printer	Built-in 2.5″ wide thermal printer
Internal Data Storage	256 static test records (each can contain up to 111 readings) and 120 dynamic test records
External Data Storage	Up to 999 test records on external USB Flash drive.
Computer Interfaces	RS-232C USB Bluetooth
Satety	Designed to meet UL 61010A-1 and Can/CSA C22.2 No 1010.1092 standards
Environment	Operating: -10ºC to 50ºC (15ºF to +122ºF) Storage: (-30ºC to 70ºC (-22ºF to +158ºF)
Humidity (Max.)	90% RH @ 40˚ C (104˚ F) non-condensing
Altitude (Max.)	2000m (6562 ft) to full safety specifications
Cables	Four 50-foot test cables One LTC control cable One ground cable One power cord One USB cable
Options	Shipping Case

Note:

Specifications are valid at nominal voltage and ambient temperature of +25˚C (+77˚F).

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