美國vanguard變壓器有載調(diào)壓開關(guān)測試儀TRM-403 Transformer Resistance Meter 
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 
 
 
 
    
TRM-403 Cables   
    
Cable Part Number 
[8000-0005] USB Cable 8000-0005 
[8000-0006] RS-232C Cable 8000-0006 
[8000-0015] LTC Control Cable 8000-0015 
[8000-0016] Power + Ground Combination Cable 8000-0016 
[8000-0077] H/X - 0 Cable 8000-0077 
[8000-0149] H/X - 1 Cable 8000-0149 
[8000-0150] H/X - 2 Cable 8000-0150 
[8000-0151] H/X - 3 Cable 8000-0151 
 
 
    
TRM-403 Technical 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 500 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 1-40A in 1A increments 
TEST VOLTAGE 60 Vdc charging, 18V DC max during measurement 
INPUT CHANNELS 4 input channels for measuring resistance 
DIS**Y 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 +25C (+77F). 
 



以下是美國vanguard檢測儀器產(chǎn)品列表，歡迎選購：

Circuit Breaker Contact Resistance Meters-斷路器回路電阻測試儀
Auto-Ohm 200 S3
DMOM-200 S3
DMOM-600
Circuit Breaker Timers-斷路器時間機(jī)械特性測試儀
CT-3500 S2
CT-6500 S2
CT-7000 S2
CT-7500 S2
CT-8000
DigiTMR S2
DigiTMR S2 PC
Doble Transducer Adapter
MCCB-250
Resistor Transducer Adapter
UPS S2
Current Transformer Testers-電流互感器變比/極性/勵磁特性測試儀
EZCT-10
EZCT-2000A
EZCT-2000B
Relay Test Equipment-多功能繼電保護(hù)測試儀
PCI-600
RFD-200 S3
Transformer Turns Ratio Meters-變壓器變比測試儀
ATRT-01 S3
ATRT-01B S3
ATRT-03
ATRT-03 S2
ATRT-03A S2
CVT-765
Tri-Phase
Transformer Winding Resistance Meters-變壓器有載調(diào)壓開關(guān)測試儀
LTCA-10
LTCA-40
TRM-20
TRM-203
TRM-40
TRM-403
TSB
WRM-10P
Transducers-傳感器
ABB AHMA-8 Mechanism Transducer
Doble Transducer Adapter
Linear Transducer
Resistor Transducer Adapter
Resistor-Type Transducer
Rotary Transducer
Rotary Transducer with Magnetic Mount
Insulation Resistance Meters IRM-5000P-高壓絕緣電阻測試儀IRM-5000P
Vacuum Bottle Testers VBT-60-斷路器真空度耐壓試驗(yàn)儀VBT-60
Cables-電纜

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