Transformer Resistance Meter
$17,623.55
Manufacturer: Vanguard Instrument
Model: TRM 403
P/N: 9006-UC
Supplied with: Base unit with PC software, cables, cable bag, shipping case, and built-in thermal printer. Printer uses
- Description
- Size Guide
- Vendor Info
- More Products
Description
Transformer Resistance Meter
Description of Transformer Resistance Meter
Three Phase 40 Amp Winding Resistance Meter with Auto Demagnetization
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.
- 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
User Interface
The TRM-203/403 features a back-lit graphic LCD screen (240 x 128 pixels) that is clearly visible in both bright sunlight and low light levels. A 44- key “QWERTY”-style membrane keypad is used to enter test information and operate the unit.
Computer Interface
The TRM-203/403 can be connected to a PC via the unit’s RS-232C, USB, or Bluetooth interface. A PC can be used to control the TRM-203/403 to perform transformer resistance tests. Test records (stored in the TRM-203/403 or a USB Flash drive) can also be retrieved, reviewed, and printed. Test records are automatically exported to PDF, Excel, and XML formats.
Safety Features
The TRM-203/403 automatically dissipates the energy stored in the transformer at the end of each test. The discharge circuit will continue to work even if the TRM-203/403 power supply is lost.
Test Record Storage
The TRM-203/403 can store up to 256 static test records (111 tests per record) and 120 dynamic test records internally. For external test record storage, the TRM-203/403 features a USB Flash drive interface port. Up to 999 test records can be stored on a connected USB Flash Drive.
SPECIFICATIONS
| TYPE | Portable transformer winding resistance meter |
| PHYSICAL SPECIFICATIONS | 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 2000 Ohms |
| ACCURACY | 1 – 19,999 micro-ohms: ±0.5% reading, ±1 count 20 – 999 milliohms: ±1% reading, ±1 count 1 -2000 Ohms: ±1.5% reading, ±1 count |
| TEST CURRENT | 1-25A 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 |
| SAFETY | 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 |
| WARRANTY | One year on parts and labor |
| Specifications are valid at nominal voltage and ambient temperature of +25˚C (+77˚F). | |
Vendor Information
-
Air Monitoring & Sampling, Dust & Aerosol Detection & Monitoring, Environmental Quality & Occupational health Monitoring, Featured, Handheld Dust detective Instrument – Microdust Pro, Instrumentation Products, Personal Sampling Pumps – Apex, Portable Dust detective kits, Promotion, Remote Dust monitoring system, Remote Multi Parameter (Noise & Dust) Monitoring SystemPorous Plastic Filter Support Pads (37mm)
$99.74
