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ISO 9001 Certified


Vanguard Instruments Company, Inc., Electronic Testing Equipment, Ontario, CA

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  • Standalone or computer-controlled
  • Inexpensive
  • Displays turns-ratio from 0.8-15,000
  • Calculates turns-ratio percentage error
  • Displays winding polarity and phase angle
  • Displays excitation current
  • Standalone or computer-controlled
  • Inexpensive
  • Displays turns-ratio from 0.8-15,000
  • Calculates turns-ratio percentage error
  • Displays winding polarity and phase angle
  • Displays excitation current
  • Battery or AC-Powered
  • Auto-discharge circuit for operator safety
  • Demagnetizes transformer after test
  • Selectable test current from 1A to 40A
  • RS-232C, USB, and Bluetooth computer interfaces
  • Built-in thermal printer
  • Standalone or computer-controlled
  • Can test CVT's rated up to 765 KV
  • Displays turns-ratios from 75-15,000
  • Calculates turns-ratio percentage error when nameplate voltages are provided
  • Very lightweight: 16.8 lbs. (7.6 Kg)
  • Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
  • Stores test records on-board or on external USB Flash drive
  • 1 to 200A programmable test current
  • Very lightweight: 19.8 lbs. (8.9 Kg)
  • Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
  • Stores test records on-board or on external USB Flash drive
  • 1 to 200A programmable test current
  • Built-in 2.5" wide thermal printer
  • Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
  • Stores test records on-board or on external USB Flash drive
  • 10 to 600A programmable test current
  • Built-in 2.5" wide thermal printer
  • Auto-discharge circuit for operator safety
  • Demagnetizes transformer after test
  • Selectable test current from 1A to 25A
  • RS-232C, USB, and Bluetooth computer interfaces
  • Built-in thermal printer
  • Detect Main & Insertion Resistor Contacts on same input
  • USB computer interface
  • USB Flash drive interface (Flash drive not included)
  • Store 128 test records internally
  • Initiate Breaker Operation
  • Built-in 2.5" wide Thermal Printer
  • Rugged "QWERTY" style membrane keypad
  • A built-in Timer displays contact time in both cycles and milliseconds
  • AC current source with 3 outputs (10A, 40A, 100A)
  • Set of NO/NC dry contacts that change state when a test is initiated
  • AC voltage source for testing relays up to 250 Vac
  • DC Voltage source (0 - 300 Vdc)
  • Volt meter input (0 - 600 V input range)
  • Three power supplies (24 Vdc, 48 Vdc, 124 Vdc)
  • Built-in power resistors
  • 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 25A
  • Computer control via RS-232C, USB, or Bluetooth interface
  • Built-in 2.5" wide thermal printer
  • 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
  • Stand-alone, microcomputer-driven EHV Circuit Breaker Analyzer
  • Analyzes contact time, stroke, velocity, over-travel, and contact wipe
  • USB PC interface
  • USB Flash drive interface
  • Can store up to 200 test records and 100 test plans
  • Built-in thermal printer
  • Performs CT excitation, current-ratio, polarity, and phase angle tests
  • Measures insulation resistance and winding resistance of the CT seconday windings
  • Measures the CT's secondary burden
  • Test record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-comments
  • Built-in 4.5-inch wide thermal printer
  • Plot Multiple Saturation Curves
  • Stores up to 128 CT test plans and 140 test records internally
  • USB, Bluetooth, and USB Flash drive interface
  • Fully analyze circuit breaker's performance by measuring main contact and resistor contact time, stroke, velocity, over-travel, bounce back and contact wipes
  • USB computer interface
  • USB Flash drive interface (Flash drive not included)
  • Store up to 200 test records and 100 test plans internally
  • Initiate Breaker Operation
  • Built-in 4.5" wide Thermal Printer
  • Rugged "QWERTY" style membrane keypad
  • Optional "On-line" Timing Mode
  • Optional dual ground testing mode
  • Optional Bluetooth wireless computer interface
  • Fully analyze circuit breaker's performance by measuring main contact and resistor contact time, stroke, velocity, over-travel, bounce back and contact wipes
  • Perform dynamic contact resistance test
  • USB computer interface
  • USB Flash drive interface (Flash drive not included)
  • Store up to 200 test records and 100 test plans internally
  • Initiate Breaker Operation
  • Built-in 4.5" wide Thermal Printer
  • Rugged "QWERTY" style membrane keypad
  • Optional "On-line" Timing Mode
  • Optional dual ground testing mode
  • Optional Bluetooth wireless computer interface
  • Ratio Range: 0.8 - 50,000 to 1
  • Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
  • 4 test voltages: 4Vac, 40Vac, 100Vac, and 250Vac
  • Phase angle and excitation current measurement
  • Bluetooth and USB PC interfaces
  • 4.5-inch wide thermal printer (optional)
  • 3 current-source outputs: 500A @ 4 Vac, 125A @ 14Vac, and 25A @ 70Vac
  • Built-in current meter
  • Built-in timer
  • Automatic testing
  • 10 kV - 75 kV DC output in 5 kV steps
  • Selectable test time duration from 5 seconds to 2 minutes
  • Digital voltage and current display
  • Failure indicator LED
  • Very lightweight (10 lbs./4.53 Kg)
  • Automatic testing
  • 10 kV - 75 kV DC output in 5 kV steps
  • Selectable test time duration from 5 seconds to 2 minutes
  • Built-in 2-1/2" thermal printer
  • Stores 84 records internally (of 16 readings each)
  • Digital voltage and current display
  • Failure indicator LED
  • Very lightweight (12 lbs./5.44 Kg)
  • Perform Saturation, Ratio and Polarity Tests
  • Perform CT Winding Resistance Test
  • Fully Automated
  • Test record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-comments
  • Plot Multiple Saturation Curves
  • Store 1,000 Records (Each test record may contain up to 10 sets of excitation, resistance, and ratio data)
  • USB and Bluetooth computer interface
  • USB Flash drive interface
  • Furnished with full set of test leads
  • Ratio Range: 0.8 - 50,000 to 1
  • Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
  • 3 test voltages: 4Vac, 40Vac, and 100Vac
  • Phase angle and excitation current measurement
  • USB PC interfaces
  • 4.5-inch wide thermal printer (optional)
  • Battery-powered
  • Ratio range: 0.8 – 50,000 : 1
  • Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
  • 4 test voltages: 4Vac, 40Vac, and 100Vac, and 250 Vac
  • Phase angle and excitation current measurement
  • Bluetooth and USB PC interfaces
  • 4.5” wide thermal printer
  • Field performance verification of all electronic turns ratio testers
  • Up to 250 Vac excitation voltage
  • Up to 12,000:1 turns ratio
The CB PWS' output rating is listed below:
 
120 Vac Input:
  • 120Vdc @ 15A, 10 second duration max ( 5% regulation) or 120Vdc@ 4A continuous (3% regulation)
  • 240Vdc @ 7.5A, 10 second duration max (5% regulation)or 240Vdc @ 2A continuous (3% regulation)
240 Vac Input:
  • 120Vdc @ 20A, 10 second duration max ( 5% regulation) or 120Vdc@ 4A continuous (3% regulation)
  • 240Vdc @ 10A, 10 second duration max (5% regulation)or 240Vdc @ 2A continuous (3% regulation).
DC output is enabled via the power control switch on the front panel. LED indicators show the "Output On", "Output Fault", and "Power Input Available" status on the front panel. 
 
The CB PWS offers several outstanding features:
  • very lightweight (14 lbs. / 6.4 Kg)
  • thermal and short circuit protected output
  • output dc voltage source is isolated from the power input
  • wide ac voltage input range (120 Vac to 240 Vac)
The CB PWS is housed in a heavy-duty, impact-resistant plastic enclosure and furnished with a power cord, ground cable, and DC power test leads.
The Vanguard Turns Ratio Calibration Standard features three decade rotary switches (unit, 10th, and 100th) for selecting the turns ratio. A multiplier switch provides  1, 10, 100, 200, 1000, and 3000 multiplier values.
The unit uses a nickel-iron supper-alloy core toroidal transformer to ensure a very low excitation in order to achieve high turns ratio accuracy. Up to 250Vac test voltage can be used with the Vanguard Turns Ratio Calibration Standard. The high excitation test voltage allows the unit to be used with virtually all turns ratio testers on the market.
A turns ratio calibration certificate is provided with each Turns Ratio Calibration Standard.
  • High capacity Li-Ion batteries (perform up to 2,900 tests per charge (@ 10A/2 sec)
  • Built-in charger and line-power for continuous operation
  • Transformer winding resistance test mode
  • Contact resistance test mode
  • Protected to 600V
  • Lightweight (7.8 lbs. / 3.54 Kg)
  • Auto discharge circuit for operator safety
  • Auto current ranging from 10 mA to 10 A
  • Digital resistance reading from 1 micro-ohm to 2,000 ohms
  • Stores 100 records (up to 64 readings each)
  • Built in 2.5" wide thermal printer
  • Weighs less than 28 lbs.