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Super User

The digital insulation tester model MD-10KVx is Megabras' cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A powerful software allows for further analysis of tests results, including features such as graphical representation and automatic report generation. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 10 TΩ, with 4 pre-selected test voltages, 500 V - 5 kV - 10 kV - 15 kV. Other test voltages may be selected in steps of 25 V, 100 V or 500 V. 

A state-of-the-art microprocessor controls the equipment operation and enables the incorporation of advanced features which make measurements easier: auto-range selection, 16,000 readings memory, AC/DC voltmeter, automatic measurement of Absorption Index and Polarization Index, leakage current and capacitance measurement, timer enabling programming of test duration, configurable Pass-Fail test, Step voltage test, real time clock and calendar. Built-in chronometer, indicating elapsed time, in minutes and seconds, since the test started, up to 90 minutes. 

Measured values are transmitted through the USB interface and are printed in the built-in printer as a registration of the performed test.The MD-10KVx has a Bluetooth interface that allows remote control of it through a Android device with BlueLogg software. With it you can take the photos of the objects under test and the GPS coordinates of each. It also allows you to record voice comments for each measurement.

 

Features

 

  • Insulation resistances up to 10 TΩ
  • Remote control through an Android app
  • Automated tests:
    •   Absorption index
    •   Polarization index
    •   Capacitance
    •   Leakage Current
  • AC/DC voltmeter
  • Step Voltage Test
  • Real time clock and calendar
  • Built-in printer
  • 4000 readings memory
  • Software for data management

Specifications

Specification  MD 10KVx
Test voltage

500 V, 1,000 V, 5,000 V, 10,000 V directly, one button selectable.

500 V to 10 kV in 25 V, 100 V or 500 V steps. DC, negative.

Maximum resistance reading 10 TΩ @ 5 kV up to 10 kV
DC Voltmeter

 15 V up to 1,000 Vdc.

Accuracy: ±(5% of reading + 3 digits).



AC voltmeter

 15 V up to 1000 Vr.m.s.

Accuracy: ±(5% of reading + 3 digits)



 Overvoltage Category   CAT -III 600V
 Capacitance measurement

 50 nF up to 10 µF @ 500 V.

50 nF up to 5 µF @ 1,000 V.

30 nF up to 2 µF @ 2,500 V.

30 nF up to 1 µF @ 5,000 V.

30 nF up to 680 nF @ 10,000 V.

Accuracy: ±10% of reading ± 3 digits.

 Short circuit current  Max. 2 mA
 Test voltage accuracy  ± 3% of nominal test voltages on GΩ
 Insulation tester basic accuracy

 ± 5% of reading from 1 MΩ to 1 TΩ @ 10 kV.

± 20% of reading from 1 TΩ to 10 TΩ @ 10 kV.

(for lower test voltages, the upper limit will be reduced proportionally)

± 20% of reading ± 5 digits from 10 kΩ to 100 kΩ.

± 10% of reading ± 5 digits from 100 kΩ to 1 MΩ.

Advanced features

Automated Polarization Index calculation.

Automated Dielectric Absorption Ratio calculation.

Programmable Pass-Fail test.

Step Voltage Test.

4000 Readings memory.

Switchable filter to remove external noise interference.

The digital insulation tester model MD-10KVR is Megabras' cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A powerful software allows for further analysis of tests results, including features such as graphical representation and automatic report generation. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 10 TΩ, with 4 pre-selected test voltages, 500 V - 5 kV - 10 kV - 15 kV. Other test voltages may be selected in steps of 25 V, 100 V or 500 V. 

A state-of-the-art microprocessor controls the equipment operation and enables the incorporation of advanced features which make measurements easier: auto-range selection, 16,000 readings memory, AC/DC voltmeter, automatic measurement of Absorption Index and Polarization Index, leakage current and capacitance measurement, timer enabling programming of test duration, configurable Pass-Fail test, Step voltage test, real time clock and calendar. Built-in chronometer, indicating elapsed time, in minutes and seconds, since the test started, up to 90 minutes. 

Measured values are transmitted through the USB interface and are printed in the built-in printer as a registration of the performed test.The MD-10KVR has a Bluetooth interface that allows remote control of it through a Android device with BlueLogg software. With it you can take the photos of the objects under test and the GPS coordinates of each. It also allows you to record voice comments for each measurement.

 

Features

 

  • Insulation resistances up to 10 TΩ
  • Remote control through an Android app
  • Automated tests:
    •   Absorption index
    •   Polarization index
    •   Capacitance
    •   Leakage Current
  • AC/DC voltmeter
  • Step Voltage Test
  • Real time clock and calendar
  • Built-in printer
  • 16,000 readings memory
  • Software for data management

Specifications

Specification  MD 10KVR
Test voltage

500 V, 1,000 V, 5,000 V, 10,000 V directly, one button selectable.

500 V to 10 kV in 25 V, 100 V or 500 V steps. DC, negative.

Maximum resistance reading 10 TΩ @ 5 kV up to 10 kV
DC Voltmeter

 15 V up to 1,000 Vdc.

Accuracy: ±(5% of reading + 3 digits).



AC voltmeter

 15 V up to 1000 Vr.m.s.

Accuracy: ±(5% of reading + 3 digits)



 Overvoltage Category   CAT -III 600V
 Capacitance measurement

 50 nF up to 10 µF @ 500 V.

50 nF up to 5 µF @ 1,000 V.

30 nF up to 2 µF @ 2,500 V.

30 nF up to 1 µF @ 5,000 V.

30 nF up to 680 nF @ 10,000 V.

Accuracy: ±10% of reading ± 3 digits.

 Short circuit current  Max. 2 mA
 Test voltage accuracy  ± 3% of nominal test voltages on GΩ
 Insulation tester basic accuracy

 ± 5% of reading from 1 MΩ to 1 TΩ @ 10 kV.

± 20% of reading from 1 TΩ to 10 TΩ @ 10 kV.

(for lower test voltages, the upper limit will be reduced proportionally)

± 20% of reading ± 5 digits from 10 kΩ to 100 kΩ.

± 10% of reading ± 5 digits from 100 kΩ to 1 MΩ.

Advanced features

Automated Polarization Index calculation.

Automated Dielectric Absorption Ratio calculation.

Programmable Pass-Fail test.

Step Voltage Test.

16,000 Readings memory.

Switchable filter to remove external noise interference.

The digital insulation tester model MD-15KVR is Megabras' cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A powerful software allows for further analysis of tests results, including features such as graphical representation and automatic report generation. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 15 TΩ, with 4 pre-selected test voltages, 500 V - 5 kV - 10 kV - 15 kV. Other test voltages may be selected in steps of 25 V, 100 V or 500 V. 

A state-of-the-art microprocessor controls the equipment operation and enables the incorporation of advanced features which make measurements easier: auto-range selection, 16,000 readings memory, AC/DC voltmeter, automatic measurement of Absorption Index and Polarization Index, leakage current and capacitance measurement, timer enabling programming of test duration, configurable Pass-Fail test, Step voltage test, real time clock and calendar. Built-in chronometer, indicating elapsed time, in minutes and seconds, since the test started, up to 90 minutes. 

Measured values are transmitted through the USB interface and are printed in the built-in printer as a registration of the performed test.The MD-15KVR has a Bluetooth interface that allows remote control of it through a Android device with BlueLogg software. With it you can take the photos of the objects under test and the GPS coordinates of each. It also allows you to record voice comments for each measurement.

 

Features

 

  • Insulation resistances up to 15 TΩ
  • Remote control through an Android app
  • Automated tests:
    •   Absorption index
    •   Polarization index
    •   Capacitance
    •   Leakage Current
  • AC/DC voltmeter
  • Step Voltage Test
  • Real time clock and calendar
  • Built-in printer
  • 16,000 readings memory
  • Software for data management

Specifications

Specification  MD 15kVr
Test voltage

500 V, 5,000 V, 10,000 V, 15,000 V directly, one button selectable.

500 V to 10 kV in 25 V, 100 V or 500 V steps. DC, negative.

Maximum resistance reading 15 TΩ @ 10 kV up to 15 kV
DC Voltmeter

 15 V up to 1,000 Vdc.

Accuracy: ±(5% of reading + 3 digits).



AC voltmeter

 15 V up to 1000 Vr.m.s.

Accuracy: ±(5% of reading + 3 digits)



 Overvoltage Category   CAT -III 600V
 Capacitance measurement

 50 nF up to 10 µF @ 500 V.

50 nF up to 5 µF @ 1,000 V.

30 nF up to 2 µF @ 2,500 V.

30 nF up to 1 µF @ 5,000 V.

30 nF up to 680 nF @ 10,000 V.

30 nF up to 680 nF @ 15,000 V.

Accuracy: ±10% of reading ± 3 digits.

 Short circuit current  Max. 2 mA
 Test voltage accuracy  ± 3% of nominal test voltages on GΩ
 Insulation tester basic accuracy

 ± 5% of reading from 1 MΩ to 1 TΩ @ 15 kV.

± 20% of reading from 1 TΩ to 10 TΩ @ 15 kV.

(for lower test voltages, the upper limit will be reduced proportionally)

± 20% of reading ± 5 digits from 10 kΩ to 100 kΩ.

± 10% of reading ± 5 digits from 100 kΩ to 1 MΩ.

Advanced features

Dielectric discharge.

Ramp test. 

Automated Polarization Index calculation.

Automated Dielectric Absorption Ratio calculation.

Programmable Pass-Fail test.

Step Voltage Test.

16,000 Readings memory.

Switchable filter to remove external noise interference.

SCOPE introduces state of the art precision single phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers

of all types. TTRM 101 measures only truns ratio where as TTRM 102 along with turns ratio, measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single phase transformer in charged switchyard condition. The range of AC voltage selection offers high accuracy in measurement.Both the instrument have in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information.The ratio results are displayed with % error. Internal non-volatile memory gives the provision of storing test results.Further data can be downloaded to PC or copied to memory stick through USB port provided.

The CTrans-TTRM software, gives the flexibility to download the stored results to PC and do the further analysis and report generation.

Features

  • Different voltage ranges provided for more accurate results
  • 5.7” TFT display with touch screen and simple menus to operate TTRM
  • Facility to configure transformer ID and details
  • Automatic OLTC operation for tap change
  • Date and time stamping to results
  • In-build memory to store the test results
  • Thermal printer to take quick print out for record
  • Ethernet port for PC interface to transfer records to PC Software
  • Mass storage device (USB 2.0) interface for copying records in pen drive
  • Lightweight, portable instrument household in rugged moulded case

 

Specifications

  Parameter Test Voltage      Range     Resolution Accuracy
1
                 
Ratio 10 V 0.8000 – 9.9999 0.0001

0.05 %

10.000 – 99.999 0.001

0.05 %

100.00 – 999.99 0.01 0.05 %
1000.0 – 1500.0 0.1 0.05 %
1500.1 – 2000.0 0.1 0.1 %
2000.1 – 4000.0 0.1 0.2 %
40 V 0.8000 – 9.9999 0.0001 0.05 %
10.000 – 99.999 0.001 0.05 %
100.00 – 999.99 0.01 0.05 %
1000.0 – 4000.0 0.1 0.05 %
4000.1 – 9999.9 0.1 0.25 %
10000 - 13000 1 0.25 %
100 V 0.8000 – 9.9999 0.0001 0.03 %
10.000 – 99.999 0.001 0.03 %
100.00 – 999.99 0.01 0.05 %
1000.0 – 4000.0 0.1 0.05 %
4000.1 – 9999.9 0.1 0.15 %
10000 – 13000 1 0.15 %
13001 - 20000 1 0.20 %
2   

Excitation Current

(Only in TTRM 102)

10 V 2000 mA 0.1 mA ± 1 mA
40 V 500 mA 0.1 mA ± 1 mA
100 V 200 mA 0.1 mA ± 1 mA
 3  Phase Deviation

(Only in TTRM 102)

10V / 40V / 100 V

± 180 Degree 0.01 Degree ± 0.05 Degree

 

Parameters TTRM 101
No of channels single HV channel and single LV channel
Test Voltages 10V, 40V and 100V AC selectable voltages
Measurements Ratio, Ratio error
OLTC Control Raise and Lower control to operate OLTC
Test Results Display (TFT) display, Thermal Printer.
Test Leads Suitable to test EHV Transformers
Printer Inbuilt Thermal Printer
Paper Thermal, 58 mm wide roll form
Memory Inbuilt memory, can store 1000 records, with date and time stamping. USB port to copy record in pen drive
Power (110V ± 15%) / (60Hz ± 10%) OR (230V ± 15%) / (50Hz ± 10%), 75VA..
Communication Port Ethernet port.
Housing Fitted in moulded case
Environment 0: -20°C to 55°C 95%RH (non-condensing) Electrical noise normally found in charged EHV switchyards
Dimensions 435 X 315X 175 mm. (Max.)
Weight 10 Kg Approx

SCOPE introduces a high voltage test set, these high voltage testing sets comes with Power frequency AC high voltage /DC high Voltage test /AC-DC high Voltage test set for testing transformers, motors, insulators, cables etc. Further, these testing sets are capable of giving continuously variable HIGH VOLTAGE from zero to maximum rated output voltage. Wide range of up to 100 kV is available in user selectable combinations.

The product was designed considering the importance of safety of the operator and thus we provide independent Control Unit & High Voltage Transformer. The kit has various interlock to avoid any kind of accident while doing the high voltage test set.

Features

    • Zero Start Interlock
    • Open Ground Facility
    • HT On / Off Lamp Indication
    • Over Current Protection
    • Short Circuit Protection
    • Audio Visual Alarm
    • Emergncy Stop Button
    • Compact, Portable and Rugged
    • Suitable for Field Use

Specifications

        • Input Voltage : 230 V AC / 50 Hz
        • Voltage & Current Display : Analog Meter or 3½ Digital Meter
        • Measurements Accuracy : ±2% ±1 Digit
Ouput Voltage (kV)    Current (mA)                  AC                DC               AC-DC       
3 200 Yes Yes Yes
5 200 Yes Yes Yes
10 100 Yes Yes Yes
15 100 Yes Yes Yes
20 50 Yes Yes Yes
25 50 Yes Yes Yes
30 25 Yes Yes Yes
40 25 Yes Yes Yes
50 10 Yes Yes Yes
60 10 Yes Yes Yes
70 10 Yes Yes Yes

 

    Underground cable faults cannot be avoided due to many factors such as road widening, infrastructure improvement, digging carried out for repairs of other underground utilities etc.

    These faults generally take long time to detect and hence long time to repair the damaged cables and restore the power supply. Long outages cause heavy production loss to industries, revenue loss to power distribution companies and inconvenience to general public. This calls for quick fault location and restoration of power supply in minimum possible time.

    An ordinary fault locating kit comprising of diagnosis set and pin-pointing equipment can take long time to locate fault point. SCOPE offers pre-locator instruments that can give the fault distance to help the operator for reaching the spot quickly and pin-pointing the fault in a short time.

    CFL PL2, new generation Cable Fault Pre-Locator from SCOPE is the ultimate solution for locating under ground cable faults in minimum time. It uses advanced technology for fault distance measurement which helps even an unskilled operator to locate the fault with accuracy.

    The instrument has simple operating modes with which any types of fault on cable can be located with high accuracy. The CFL PL2 is cost effective solution for the job.

    Features

    • Measuring rage up to 16 km.
    • Large LCD & User friendly operation.
    • Adjustable Balance of instrument resistance tosuit the cable under test.
    • Adjustable Gain for optimal waveform resolution.
    • Facility to store & compare the waveforms.
    • Memory to store up to 50 waveforms.
    • Housed in rugged, IP class moulded case.
    • PC connection via RS 232.
    • Printer connection via RS 232 (Printer is optional).
    • Compact and light weight.
    • Large range of Propagation Velocity from 90 to 300m/ μS covers all type of cables including pilot and telecom able with any type of insulation.

    Specifications

    • Transmitting Pulse Amplitude :30V
    • Transmitting Pulse width : 40ns-3.56μs
    • Output impedance : 5-80Ω
    • Measuring Range : 0-16 km
    • Sampling speed :100MHz
    • Resolution : TDR Mode : <±1m up to range <4km<± 4m for ranges >4 km ICM Mode: <± 4m up to range <4 km<± 16m for ranges >4km
    • Propagation Velocity : 90-300m/ μs.This range covers all the cables including pilot and telecom cable with any type of insulation.
    • Ranges : 500m,1km,4km,5km,8km and 16km. The operator can choose right range to get better resolution at fault point.
    • Balance Adjustment : Under TDR mode it is required to balance the instrument resistance to suit the cable under test. With this control the instrument resistance can be varied between 5 ohms to 79 ohms.
    • Memory :50 waveforms
    • Display : 320x240 pixels
    • Powered by Chargeable Li-ion Battery.
    • Charging voltage : Input: 230V AC : Output: 8.4V±10% DC
    • Operating time of rechargeable batteries: Approx. 5hr
    • Operating Temperature : -10

     

    Cable Fault Locator

    Underground cable faults cannot be avoided due to many factors such as road widening, infrastructure improvement, digging carried out for repairs of other underground utilities etc.

    These faults generally take long time to detect and hence long time to repair the damaged cables and restore the power supply. Long outages cause heavy production loss to industries, revenue loss to power distribution companies and inconvenience to general public. This calls for quick fault location and restoration of power supply in minimum possible time.

    An ordinary fault locating kit comprising of diagnosis set and pin-pointing equipment can take long time to locate fault point. SCOPE offers pre-locator instruments that can give the fault distance to help the operator for reaching the spot quickly and pin-pointing the fault in a short time.

    CFL PL3, new generation Cable Fault Pre-Locator from SCOPE is the ultimate solution for locating underground cable faults in minimum time. It uses advanced technology for fault distance measurement which helps even an unskilled operator to locate the fault with accuracy.

    CFL PL3 is an advanced fault locating instrument. Three operating modes offered by the instrument enable the operator to locate all types of faults on any cable in minimum possible time.Complex and difficult to locate nature fault are located by CFL PL3 with high accuracy. These features classify the instrument to be a part of fault locating kit of Heavy Industries & Power Distribution Company.

    Features

    • Measuring rage up to 16 km.
    • Large LCD & User friendly operation.
    • Adjustable Balance of instrument resistance to suit the cable under test.
    • Adjustable Gain for optimal waveform resolution.
    • Facility to store & compare the waveforms.
    • Memory to store up to 50 waveforms.
    • Housed in rugged, IP class moulded case.
    • PC connection via RS 232.
    • Printer connection via RS 232 (Printer is optional).
    • Compact and light weight.
    • Large range of Propagation Velocity from 90 to 300m/μS covers all type of cables including-pilot and telecom able with any type of insulation.

    Specifications

    • Transmitting Pulse Amplitude : 30V
    • Transmitting Pulse width : 40ns-3.56μs
    • Voltage withstand : 400V AC (50Hz)
    • Output impedance : 5-80Ω
    • Measuring Range : 0-16 km
    • Sampling Speed : 100MHz
    • Resolution : TDR Mode and SIM Mode : <± 1m up to range <4km <± 4m for ranges >4 km ICM Mode : <± 4m up to range <4 km <± 16m for ranges >4km
    • Propagation Velocity : 90-300m/μs.This range covers all the cables including pilot and telecom cable with any type of insulation.
    • Ranges : 500m, 1km, 4km, 5km, 8km & 16km. The operator can choose right range to get better resolution at fault point.
    • Balance Adjustment : Under TDR mode it is required to balance the instrument resistance to suit the cable under test with this control the instrument resistance can be varied between 5 ohms to 79 ohms.
    • Memory : 50 waveforms
    • Display : 320x240 pixels
    • Charging voltage : Input: 230V AC: Output: 8.4V±10% DC
    • Operating time of rechargeable batteries: Approx. 5hrs
    • Operating Temperature : -10˚C to 50˚C
    • Storage Temperatures : -10˚C to 70˚C
    • Type of protection IP 54 : Splash proof and dust protected
    • Dimensions : 330 x 305 x 152mm
    • Weight : 3kg

     

    ”XC 2100E, a Fault Location System based on principle of travelling wave detection is the solution to above problem. It can detect not only permanent fault, but also transient fault within one tower span accuracy (with best accuracy of ±50 meters). It is a kind of Line Monitor for continuous monitoring of transmission lines and gets triggered whenever travelling waves are generated on line due to switching, lightening or fault.

    There are various methods employed for fault location detection. However the most suitable is Double End Method in which XC 100E are installed on both ends of the line, and are time synchronised by built-in GPS Module.

    The data from both Units is brought to a Master Station where the Master Station Software XCF 2100E is installed. It automatically calculates the distance of fault from each end of line. Each XC 100E is capable of monitoring up-to 8 lines and the Master Station Software is capable of handling large no. of lines in a network.

    Features

    • TWFL system is free from influence of following factors which aff ect fault location accuracy of impedance based measurement methods like:
      • Resistance of line
      • Voltage & Current Transformer (CT & PT) errors
      • Insufficient accuracy of line parameters due to neglecting of line transposition, distributed capacitance etc.
      • Uncertainty of zero sequence impedance due to variation of earth resistance along the line corridor
      • Load flow
    • TWFL system monitors travelling waves at both ends of transmission lines & provides accurate fault location(fault distance, tower number) for all type of power lines including:
      • AC, HVDC and Series Compensated Transmission Lines
      • Lines with T branches
      • Lines containing cable and overhead line sections
      • Measuring fault distance of single phase to ground fault in non-eff ectively earthed Distribution System
    • Travelling wave measurement technique used gives fault location within one tower span and with best accuracy of ±50 meters irrespective of line length, line parameters, fault resistance, CVT transients, conductor & tower geometry.
    • Such accurate fault location greatly reduces the search time to find out the fault to help quick recovery of the system.

    Specifications

    Parameter XC-2100E
    No. of Channels 3-24 configurable for 1-8 line
    Input Module AD Module: Direct current input from substation Protection CT
    AI Module with split core CT: Current Input through a split core CT
    AI Module with external CT: Current Input through an external CT
    AV Module: Input from substation VT
    Length of Transient Record 1 to 20ms Programmable
    Power 85 to 264V, 50/60 Hz AC or 90 to 260V DC
    Sampling Frequency 36 MHz, 12 MHz, 8 MHz, 6 MHz, 4.8 MHz, 4 MHz, 3 MHz, 2.4 MHz, 1.5 MHz, 1 MHz & 500 kHz
    Accuracy of Fault Location Best Accuracy to ±50 meter
    GPS Accuracy 100ns
    Memory 8 GB
    Communication port 2 Ethernet ports, 2 DB9 RS232, USB
    Communication protocol IEC60870-5-104, IEC 61850
    Immunity Conforms to relevant IEC standards
    Operating Temperature - 10°C - 55°C
    Storage Temperature -40°C to 85°C
    Physical Dimension 2U, 19”

    This is an ‘All in One’ solution for testing and analysing partial discharges in the insulation of high-voltage transformers, cables, GIS and electric machines. The DIMRUS ‘PD Analyser’ help diagnose their insulation state and find any type of defects very effectively.It can be used for temporary or constant monitoring of partial discharge in medium and high voltage systems and cables of any rated voltage.The PD Analyser is the most useful device for condition estimation of high-voltage insulation. This multipurpose device is designed for -

    • Partial discharge measuring in high-voltage insulation at a high noise level.
    • Fast detecting of the defects in different high-voltage equipment and identifying how dangerous they are.

    Features

    • It separates stray noise pulses and partial discharge pulses while comparing their frequency and time of arrival.
    • It uses phase resolved partial discharge (PRPD) and time frequency analysis (PD- Cloud).
    • It has the database of the most defects which can be upgraded with new diagnostic information.
    • Danger level shows how severe the signal can be.
    • It uses special algorithms to estimate if the received data is authentic.
    • Automatic report generation on the condition of the insulation of the high-voltage equipment.

    Specifications

    Parameters PD Analyser 3 PD-Analyzer HF/UHF
    Sensor options HF, UHF HF, TEV, UHF
    HF discharge pulse frequency 0.1 to 20 MHz
    UHF discharge pulse frequency 200- 1500MHz
    HF discharge amplitude 20 to 100000pC
    UHF discharge amplitude -70dBm to -25dBm
    Computer connection USB, Wi-Fi USB
    Supply voltage 90 to 260V AC
    Operating temperature range  -10 to 50
    Dimension 222 x 160 x 45 mm 520 x 435 x 230 mm
    Weight 12 Kg 25Kg

     

    PD Defect Location in High-Voltage Equipment Insulation by Acoustic Sensors To act on deteriorating insulation the source of PD must be known.The insulation defects produce partial discharges, which emits electrical impulses, radiation of electromagnetic waves as well as acoustic signals.The AR700 measures acoustic signals with multiple sensors spread over the transformer. Then the software determines the failure location using the time difference of all incoming signals. Finally, these coordinates are shown in a 3D model of the transformer. AR700 device is used for measuring of acoustic signals on the external surfaces of gas-insulated breakers and substations, power transformers and other tank high-voltage equipment. The acoustic signals are caused by partial discharges in the insulation, which is the sigh of the defects.The advantage of “AR700” device is the quick installation of the acoustic PD sensors on the external surface of high-voltage equipment tank. The sensors have magnetic holder that is why there is no need to de-energize the equipment for the sensors installation. “AR700” device has 4 syn-chronic channels for acoustic signal measurement. This gives the possibility not only to find the defects in the insulation, but also to locate them. The location function of the “AR700”device is unique for acoustic devices.

     

    Features

    • The signal analyses and the PD zone location could be carried out both in manual and automatic modes.
    • Software calculates the fault location based on the time difference between the incoming signals.And report is generated about PD source location.
    • Convenient and handy through light weight, small size and battery operation.
    • Can be used for multiple assets like Transformers, CTs, GIS, Cables etc.
    • Defect type identification by synchronised measurement of PD

    Specifications

    Parameter AR700
    Acoustic channels for PD measuring 
    Frequency range of acoustic sensors 30 - 300 kHz
    High-frequency channels for PD measuring 1
    Frequency range of high-frequency sensors 0.1 - 20 MHz
    LCD resolution  480x272pixel
    PC connection USB
    Operating temperature range -20 to +60 ºc 
    Humidity <98%, noncondensing 
    Operating time from build-in accumulator 8 hours
    Device weight, without sensors 1.1 kg
    Dimensions of transportation case 520x435x230mm
    Device weight in carrying case 12kg
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