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Analizor circuite intrerupatoare inalta tensiune Vanguard digiTMR PC

Cod: Vanguard digiTMR PC


 
Brosura produs PDF, 0.63 Mb
       

Descriere

  • dry-contact inputs 3 dry-contact channels
  • timing windows 1 second, 10 seconds, or 20 seconds
  • timing resolutions ±50 micro-seconds @ 1 sec. duration
  • Inexpensive, PC-controlled EHV circuit breaker analyzer
  • Optional "on-line" timing mode
  • Small and light-weight
  • Can test contact time, stroke, velocity, over-travel, and contact wipe

 

The Vanguard DIGITMR S2 PC is an inexpensive, easy to use digital circuit breaker analyzer that is designed to be used with a PC. This inexpensive analyzer offers the most cost-effective method for testing circuit breakers. It can fully analyze a circuit-breaker’s performance by testing the contact time, stroke, velocity, over-travel, and contact wipe. Contact-motion analysis can be performed for all breaker contact operations (Open, Close, Open - Close, Close - Open, and Open - Close - Open). The DIGITMR S2 PC offers three dry-contact channels (for timing circuit breaker main and insertion resistor contacts), one digital transducer channel (to monitor CB contact motion), and two voltage monitoring channels.

 

"On-line" Timing Mode Option

An optional "on-line" timing mode is available for

the DIGITMR S2 PC. In this mode, the DIGITMR S2

PC captures the breaker’s trip or close time, the trip/

close coil current "fi ngerprint," and the battery supply

voltage while the breaker is still in service. The

trip/close time is derived from the time of trip, or

close coil initiation, to the breaker’s bushing current

breaker-make as detected by an AC clamp-on current

sensing probe.

The "on-line" timing mode can detect a breaker’s

operating conditions with little or no down time. In

this mode, the fi rst trip operation time of the breaker

is captured. If a breaker has been in service for a long

period of time and sitting in close position, the fi rst

trip time of the breaker may be slow possibly due to

a sticky mechanism. The "on-line" mode is very useful

in such cases because traditional breaker timing

may not detect this condition since several operations

may have occurred before the fi rst timing test

is conducted.

 

CB Analysis Software

The DIGITMR S2 PC comes with the

Windows®-based Vanguard Circuit Breaker

Analyzer Series 2 (VCBA S2) software. This

software is used to perform circuit breaker

timing tests from the PC and to create test

plans for specifi c circuit breakers.

A test plan comprises of all circuit breaker

performance specifi cations (Stroke, Velocity,

and Contact Time). When a test plan is used

to perform a test, the DIGITMR S2 PC compares

the test results with the circuit breaker's

performance defi ned in the test plan to generate

a "Pass/Fail" report

 

Open/Close Coil Current Monitoring

A built-in Hall-Effect current sensor records

the circuit breaker’s operating coil current

amplitude and duration. The circuit breakers’

operating-coil waveforms (effectively, a performance

"fi ngerprint" or "current profi le")

can be used as a diagnostic tool for analyzing

a circuit breaker’s performance.

 

 

 

Accesorii standard

Part number DIGITMR S2 PC DIGITMR S2 PC, cables, and PC software

Part number DIGITMR S2 PC-CASE DIGITMR S2 PC shipping case

Part number DIGITMR S2 PC-ONLINE TIMING DIGITMR S2 PC on-line timing mode option

Part number Paper-TP4 thermal printer paper

 

Alte produse VANGUARD

ANALIZOR CIRCUIT INTRERUPERE INALTA TENSIUNE VANGUARD DIGITMR

• dry-contact inputs 3 dry-contact channels
• timing windows 1 second, 10 seconds, or 20 seconds
• timing resolutions ±50 micro-seconds @ 1 sec. duration
• 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
• Built-in thermal printer

 
TESTER RAPORT TRANSFORMARE TRANSFORMATOARE DE TENSIUNE CAPACITIVE VANGUARD CVT-765

• 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

 
PUNTE MASURA REZISTENTA INFASURARE TRANSFORMATOR VANGUARD TRM-20

• accurately measure resistance values from 1 micro-ohm to 2,000 Ohms
• Auto-discharge circuit for operator safety
• Demagnetizes transformer after test
• Selectable test current from 1A to 20A
• RS-232C, USB, and Bluetooth computer interfaces
• Built-in thermal printer

 
ANALIZOR INTRERUPATOARE STICLA CU VID INALTA TENSIUNE VANGUARD VBT-60 / 80

• Automatic Testing
• 10 kV to 60 / 80 kV DC output in 5 kV steps
• Selectable dwell time from 5 seconds to 2 minutes
• Digital voltage and current display
• Failure indicator lamp
• Very light-weight

 
TRUSA DIGITALA TESTARE RELEE DE PROTECTIE VANGUARD RFD-200

• Timer: 0 to 9.999 sec, 1 ms resolution; 10.00 to 99.99 sec, 10 ms resolution, 100.00 to 999.999 sec, 100 ms resolution
• built-in Timer displays contact time in both cycles and milliseconds
• AC current source with 3 outputs (10A, 40A, 100A)
• 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

 
ANALIZOR INTRERUPATOARE TIMP ACTIONARE VANGUARD CT-7000

• dry-contact inputs: 3 channels (9021-UC) or 6 channels (9100-UC)
• timing windows: 1 second, 10 seconds, or 20 seconds
• timing resolutions ±50 micro-seconds @ 1 sec. duration, ±500 micro-seconds @ 10 sec. duration, ±1.0 milli-seconds @ 20 sec. duration
• breaker operations: Initiate Open, Close, Open-Close, Close-Open, Open-Close-Open
• Fully analyze circuit breaker's performance
• 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)
• Built-in 4.5" wide Thermal Printer

 
TESTER REZISTENTA INFASURARE TRANSFORMATOR TRIFAZAT VANGUARD TRM-203

• accurately measure resistance from 1 micro-ohm to 2000 Ohms
• 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 20A
• Computer control via RS-232C, USB, or Bluetooth interface
• Built-in 2.5" wide thermal printer

 
TESTER AUTOMAT RAPORT DE TRANSFORMARE TRANSFORMATOARE TRIFAZATE VANGUARD ATRT-03

• Highest ratio: 0.8 - 15,000
• Built-in 4.5" thermal printer
• Excitation current measuring
• Phase angle measuring
• Computer interface
• Name-plate turns ratio calculation
• Computed % error based on measured and calculated ratio

 
TRUSA TESTARE TRANSFORMATOARE DE CURENT, RAPORT TRANSFORMARE, CURBA EXCITATIE, GRAFIC SATURATIE VANGUARD EZCT-2000C PLUS

• 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

 
ANALIZOR DE INTRERUPATOARE TRIPOLARE AUTOMATE VANGUARD CT-3500

• Dry-contact inputs: 3 channels
• Trigger input voltage open/close: 30 ¬ 300 V, DC or peak AC
• Breaker operations: Open, Close, Open-Close, Close-Open
• Timing resolution: ±0.1 millisecond
• Detect Main & Insertion Resistor Contacts on same input
• USB computer interface
• Built-in 2.5" wide Thermal Printer