Search
Make A Payment
My Cart
Login
WORLDWIDE SHIPPING
Call 800-404-2832
800-404-2832
+800 0404 2832 International
A2LA
ISO
Home
Products
Categories
Manufacturers
Industries & Solutions
Test Standards
EMC
Communications
Electrical
Environmental Health & Safety
Environmental Simulation
NDT Inspection
Power Supplies & Loads
General Purpose
View All »
EMC
Radiated Immunity
Amplifiers
EMC Antennas
EMP Generators
Field Strength Monitors & Probes
RF Components
RF Shielded Enclosures
RF Power Meters
RF Signal Generators
Receiving Antennas
Radiated Emissions
EMC Antennas
EMI Receivers
EMI Scanners
Near Field Probes
RF Preamplifiers
RF Shielded Enclosures
Spectrum Analyzers
Conducted Emissions
EMI Receivers
Harmonics & Flicker
LISNs
RF Current Probes
Spectrum Analyzers
Transient Limiters
Conducted Immunity
Automotive Transient Generators
Conducted LF/RF Immunity
ESD Guns
Indirect Lightning Test Systems
Military & Aerospace Transient Generators
Transient Generators
Coupling Decoupling Network
Bulk Current Injection Probes
Communications
Cellular Network
CW Transmitters
Antenna Alignment Tools (AAT)
Handheld Cable and Antenna Analyzers
Radiation Meters
Fiber Test Kits
Gauss Meters
PIM Testers
Personal RF Monitors
Spectrum Analyzers
Drive & Walk Testers
Data Network
Laser Power Meter Rentals
Fiber Testers
Fusion Splicers
LAN Cable Certifiers
OTDRs
SONET Test Sets | SDH
Ethernet IP Network Testers
DWDM & CWDM OTDRs
Wifi Testers
Radio Network
Audio Analyzers
RF Interference Hunting Equipment
Land-Mobile Radio System Modulation Analyzers
Lock-in Amplifiers
Digital Radio Test Sets
Spectrum Analyzers
Wireless Communications Test Sets
Flight Line Test Sets
Signal Analysis
Bit Error Rate Testers (BERT)
RF Direction Finders
Noise Figure Analyzers and Sources
Oscilloscopes
Pulse Pattern Generators
RF Power Meters
RF Signal Generators
Spectrum Analyzers
Vector Network Analyzers
Vector Signal Generators (VSG)
GNSS Simulators
Electrical
Facility Power Testing
Power Quality
Ground Resistance Testers
Power Loggers
Scope Meters
Photovoltaic Testers
Thermal & Infrared Cameras
Underground Cable Locators
Industrial Electrical Testing
Borescopes
Vibration Analyzers
DLRO (Ductors)
Hipot Testers
Insulation | Ground Megohmmeters
Laser Alignment Tools
Motor Analyzers
Sound Level Meters
Thermal & Infrared Cameras
Bond Testers
Acoustic Cameras
Vacuum Interrupter Testers
Substation & Transformer Testing
Current Transformer (CT) Testers
Oil Dielectric Testers
Partial Discharge Testers
Power Factor Test Sets | Tan Delta
Protective Relay Test Sets
Sweep Frequency Response Analyzers
Circuit Breaker Testing Equipment
Transformer Turns Ratio (TTR) Testers
Winding Resistance Meters
Transmission Line Testing
AC Hipot Testers
Cable Fault Locators
Time Domain Reflectometers (TDR)
DC Hipot Testers
Partial Discharge Testers
Power Factor Test Sets | Tan Delta
VLF Cable Testers
Environmental Health & Safety
Air Monitoring
Gas Analyzers
Particle Counters
Dew Point Meters
Confined Space Gas Monitors
Gas Area Monitors
Industrial Hygiene
Radiation Meters
Gauss Meters
Sound Level Meters
Monitoring and Inspection
Ultrasonic Flow Meters
Helium Leak Detector
Light & Color Meters
Thermal & Infrared Cameras
RF Safety
Personal RF Monitors
RF Survey Meters
Area Monitors
Spectrum Analyzers
Environmental Simulation
Environmental Chambers
Benchtop Chambers
HAST Chambers
Stability Chambers
Temperature & Humidity Chambers
Thermal Chambers
Thermal Shock Chambers
Vacuum Drying Ovens
HALT Chambers
Temperature Cycling Chambers
Arc Test Chambers
Temperature Testing
Industrial Ovens | Furnaces
Recirculating Chillers
Thermal Chambers
Temperature Forcing Systems
Temperature Cycling Chambers
Arc Test Chambers
Motion Testing
Force Testers
Particle Impact Noise Detection (PIND)
Shaker Systems
Shock Testers
NDT Inspection
Materials Testing
Coordinate Measuring Machines (CMM)
Ionographs
Laser Micrometers
Roughness Testers
Ultrasonic Thickness Gauges
Ultrasonic Flaw Detectors
XRF Analyzers
Ground Penetrating Radar (GPR)
Hardness Testers
Accelerometers
Particle Impact Noise Detection (PIND)
Laser Doppler Vibrometers
Eddy Current Flaw Detectors
Condition Monitoring
Pipe Cameras
Borescopes
Vibration Analyzers
Accelerometers
Laser Alignment Tools
Sound Level Meters
Visual Inspection
Pipe Cameras
Digital Microscopes
Borescopes
High-Speed Cameras
Thermal & Infrared Cameras
Acoustic Cameras
3D Laser Scanners
Infrared Pyrometers
Power Supplies & Loads
AC
AC Loads
AC Power Supplies
Grid Simulators
Precision Power Analyzers
Variable Transformers
Battery Charger Testers
DC
Battery Testers
DC Loads
DC Power Supplies
Precision Power Analyzers
Battery Cell Testers
Battery Module Testers
Battery Pack Test Systems
Battery Charger Testers
Solar Array Simulators
Battery Diagnostic Tools
High Voltage DC Power Supply
General Purpose
Calibrators
Digital Multimeters
Electrical Calibrators
Electrical Standards
HART Field Communicators
Multifunction Process Calibrators
Pressure Calibrators
Temperature Calibrators
Deadweight Testers
Calibration Hand Pumps
Pressure Modules
Frequency References
Humidity Calibrators
Vibration Calibrators
Gas Calibrators
Pressure Gauges
Component Testing
Benchtop Power Supplies
Digital Multimeters
Electrical Safety Analyzers
Function Generators
Impedance Analyzers
LCR Meters
Oscilloscopes
Precision Power Analyzers
RF Signal Generators
Semiconductor Parameter Analyzers
Source Measure Units (SMU)
Spectrum Analyzers
Vector Network Analyzers
Vector Signal Generators (VSG)
Industrial CT Scanners
Circuit Board Testers
Potentiostats | Galvanostats
Data Acquisition
Data Loggers
Scopecorders
Signal Conditioners
3Z Telecom
Additel
AE Techron
AEMC
Aeroflex
Amplifier Research
Anritsu
Artec 3D
Associated Environmental Systems (AES)
Baker Instruments
Bedrock
Biddle
Bruel & Kjaer
California Instruments
Chroma
Cincinnati Sub-Zero
Com-Power
Doble
Dranetz
EM Test
EMC Partner
Emerson
Empower
ESDEMC
Espec
Evident
EXFO
Exodus
FLIR Systems
Fluke Calibration
Fluke
Fluke Networks
Fuji Electric
Haefely
High Voltage Inc.
Industrial Scientific
Instruments for Industry (IFI)
inTEST Thermal Solutions
Isotech
Keithley
Keysight
Kikusui
LeCroy
Maccor
Magna-Power Electronics
Megger
Memmert
Mitutoyo
Narda Safety Test Solutions
NetScout Systems
NH Research
NoiseKen
OMICRON
Ophir
Pacific Power Source
Phenix
Phoenix
Preen
Rohde & Schwarz
Solmetric
Sorensen Power Supplies
Sumitomo
Tektronix
Tesco
Teseq
Thermotron
Viavi Solutions
VibrAlign
Yokogawa
View All »
Industries
5G
Communications
Environmental Health & Safety
Defense
Electrical
Hydro Power
Solutions
Choosing an Environmental Chamber
Clean Room Testing
Electrostatic Discharge (ESD) Testing
What is EMI/EMC Testing?
Automotive EMC Test Equipment
Fiber Testing
How to Use a Laser Alignment Tool
Multipaction Testing
NDT | Non-Destructive Testing
Power Quality Instrument Selection Guide
Substation Maintenance
Cell Tower Testing
Building Envelope Testing
HIRF Testing
What is XRF Testing?
Battery Testing Equipment
How to Splice Fiber Optic Cables
What Is OTDR Testing?
What Is A Direction Finder?
How to Find RF Interference
What is RF Spectrum Monitoring?
What Is Drone Detection Equipment?
What Is an RF Amplifier?
Workplace Health & Safety Equipment
Using A Visual Inspection Camera
What Is A High Precision Power Analyzer?
What is VLF Cable Testing?
What is PIND Testing?
Aircraft EMC Testing
What Is Material Testing?
AEN Standards
Airbus Standards
ANSI/ASA Standards
ANSI/BICSI Standards
ANSI/IEEE Standards
ANSI/SCTE Standards
ANSI/TIA Standards
ASTM Standards
Boeing Standards
CE Marking
DaimlerChrysler Standards
ECE Standards
EN Standards
EPA Standards
EU Directive Standards
EUROCAE Standards
FCC Standards
Fiat Standards
Ford Standards
GM Standards
ICNIRP Standards
IEC CISPR Standards
IEC Standards
ISO Standards
Health Canada Standards
ISO/IEC 17025:2017 Accreditation
ISTA Standards
ITU-T Standards
JASO Standards
LV Standards
Mercedes-Benz Standards
NEBS Standards (Network Equipment Building System)
NERC/FERC Standards
JEDEC Standards
MIL Standards
Peugeot Standards
Renault Standards
RTCA/DO-160
SAE Standards
TIA-EIA Standards
UL Standards
Military Guidelines
IEEE Standards
View All »
Request A Quote
Calibration
Contact Us
NARDA STS
Search:
Search
Vanguard WRM-40 Winding Resistance Ohmmeter
Request Calibration
Quote Add-Ons
Tech Support
(800) 404-2832
With Every
Rental
Worldwide
Delivery
Larger
Categories
Winding Resistance Meters
Documents
Datasheet
Manual
Print
Email
The Vanguard WRM-40 Winding Resistance Ohmmeter is designed to accurately measure the winding resistance of highly inductive power transformers. The unit’s dual resistance-reading input channels can measure two winding resistances simultaneously, and four-wire (Kelvin) connections provide high accuracy and require no lead compensation. The WRM-40 provides stable resistance readings of very large transformers by utilizing a 36Vdc power supply capable of outputting up to 40 Amperes. The resistance reading of a 500MVA transformer can be achieved in 5 minutes or less. The unit’s power supply is cooled by four heavy-duty fans designed for continuous operation. For greater flexibility in the field, the WRM-40 comes with a built-in 2.5-inch wide thermal printer used for printing test reports.
Specifications
Features
Applications
Options
Accessories
Standards
Videos
Features
Auto discharge circuit for operator safety
Auto current ranging from 10 mA to 40 A
Digital resistance reading from 1 microohm to 500 ohms
Stores 63 records (of 48 readings each)
Built-in 2.5-inch wide thermal printer
Specifications
Type: portable transformer winding resistance meter
Input Power: 100 – 120 Vac or 200 – 240 Vac (factory pre-set), 50/60 Hz
Resistance Reading Range: 1 micro-ohm – 500 ohms
Accuracy:
1 – 19,999 micro-ohms: ±0.5% reading, ±1 count;
20 – 999 milli-ohms: ±1% reading, ±1 count;
1 – 500 ohms: ±1.5% reading, ±1 count
Test Voltage: 36 Vdc max
Test Current Range: auto range, 40 Amperes max
Display: back-lit LCD Screen (20 characters by 4 lines); viewable in bright sunlight and low-light levels
Printer: 2.5-inch wide built-in thermal printer
Keypad: rugged membrane keypad (10 alpha-numeric keys, 6 function keys)
Internal Test Record Storage: stores 63 test records of 48 readings each
Computer Interface: one RS-232C port
PC Software: Windows®-based software is included with purchase price
Safety: designed to meet IEC61010 (1995), UL61010A-1, CSA-C22.2 standards
Cables: three 50-foot test cables, ground cable, power cord and cable bag
Applications
Options
Accessories
Standards
Media
RELATED PRODUCTS
Megger MTO330 Automated Six-Winding Transformer Ohmmeter
Tettex Instruments 2293 Winding Resistance Meter
Megger MWA330A 3-Phase Ratio and Winding Resistance Analyzer
Vanguard TRM-403 Transformer Winding Resistance Meter
Megger MTO210 Transformer Ohmmeter
Raytech USA WR14 Winding Resistance Meter
Raytech USA WR50-12 Winding Resistance Meter
Vanguard WRM-10 Winding Resistance Ohmmeter
DV Power TWA Series 3-Phase Winding Ohmmeters, Tap Changer & Winding Analyzers
Biddle 57J / 577500 Energized Winding Resistance Tester
LumaSense LumaSMART Winding Hot Spot Temperature Controller
Megger MLR10 10 Amp Leakage Reactance Tester
Megger MTO250 Transformer Ohmmeter
Vanguard TRM-40 Amp Winding Resistance Meter
×
With Every