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Super User


The portable multipurpose 3i device (Intellectual Insulation Indicator) is for eff ective high-voltage equipment insulation monitoring on-line. The 3i device measures and analyses partial discharges (PD). For eff ective PD measurement and noise rejection, there are two types of sensors used in the device: the acoustic sensor and the TEV sensor. Both the sensors are built into the device case, and so do not need any connection cables. The device is supplied in a strong metal case; at the faceplate there are the colored screen and two buttons: power button and function button.



      The multipurpose 3i device is for on-line insulation condition estimation in the following equipment:
  • 6 - 35 kV switchgears of various designs;
  • Terminations and joints of cables;
  • High-voltage gas-insulated equipment (Gas-Insulated switchgear (GIS)) of any rated voltage.
  • The tanks of power transformers, breakers, etc.


Parameter 3i
In-built PD sensors acoustic, TEV
In-built acoustic sensor frequency range, kHz 40 ± 2
In-built TEV sensor frequency range, MHz 10 - 100
LCD resolution, pixels 240 x 320
PC connection USB
Battery life, hours 10
Operation temperature range, °C -20 ÷ 40
Device dimensions, mm 187 x 78 x 43
Weight, kg 0.6

SCOPE introduces 50 A state of the art precision winding resistance meter, specially designed for field testing as well as factory testing of large transformers up to 500 MVA. Winding resistance value of transformer and rotating machine are directly displayed on 5.7” TFT display. TRM 50 is designed to work in live EHV switchyard conditions, ensuring operator’s safety and repeatability of results. Maintenance time saving is ensured by one time connection to transformer with simultaneous resistance measurement of three / six windings, measurement of resistances of all taps with automated tap change and demagnetization facility. The meter is protected against the back-EMF offered by large inductive windings.



  • Can measure DC winding resistance of large rotating machines, highly inductive test objects like Transformer, Generators and Motors etc.
  • 50 A DC current makes it possible to measure low resistances with high accuracy.
  • One time connection to either all windings of primary and / or secondary. Simultaneous measurement reduces connection and measurement time.
  • Change in winding resistance, short or open windings can be detected from measured values.
  • Automatic temperature measurement and temperature corrected value calculation.
  • Measurements of winding resistance of all taps of phases in one go. Recoding, printing and storage of results.
  • OLTC contact opening and compete OLTC performance test facility. Testing of either single or three phases in one test. Single report generation.
  • To know condition of OLTC contacts, OLTC mechanism, transition resistor.
  • Discharges and demagnetizes the object after test.


Parameter TRM 50/ TRM 50+
No of Channels  3/6 Current Channels, 3/6 Volatge Channels , 1 tempreture Channel 
Connections One time connection to primary or secondary winding of transformer
Current Ranges 50A, 40A, 25A, 10A, 5A, 1A, 100mA, 10mA
Resistance Ranges Up to 2000 Ω (Auto ranging)
Resolution  4 ½ digit
Accuracy Value ± 0.5% ± 5 counts
Current and Resistance ranges  
Open Circuit Voltage 50 V 
Demagnetization Facility Yes
Display 5.7” TFT display with touch screen
Printer 58 mm, Inbuilt thermal printer
Communication Port Ethernet for PC communication
Data Port USB for extrernal memory stick connection
External Control Possible via Notebook PC through Ethernet port and software
Temperature measurement Range 0 to 100 deg, Accuracy ± 1 deg, Resolution 0.1deg
Temperature correction For Aluminium & Copper 
Temperature Input Channel Compatible to accept RTD input
User Interface Resistive touch screen
Back EMF Protection Yes. Automatic protection after measurement and during accidental disconnection of current path. Protection operates even if Mains supply fails.
Discharge Facility & Indication Automatic Discharge of DUT & messages on screen
Tap Changer Test Detects discontinuity during tap changer test
OLTC Test Facility(Optional) OLTC test facility with current v/s time graph, Single or Three Phases simultaneously. Available in control through PC option only.
OLTC current Ranges 50A, 40A, 25A, 10A, 5A
Protection Shut down of power source on Over voltage, Over current,Over temperature
Indications Polarity reversal, Test connection continuity and discharge
Diagnostics Check At power On instrument does self-check of channels and shows the message
Test Leads Measuring leads, AC supply, earth leads and temperature sensor lead
Operating Environment -10°C to 50°C, 95% RH (non condensing)
Storage Temperature -20°C to 60 °C
Heat Run test Yes
Delta connection Measurement  values of each arm of delta winding is calculated and displayed
One side earthing Instrument is able to do the measurement with one side earthing (with Neutral earthing)
Input Supply 110V AC ±15% 50/60 Hz ±10% Or 220V AC ±15% 50/60 Hz ±10%.
Dimensions 630 x 500 x 302mm
Weight 22 Kg. Approx 

SCOPE introduces state of the art precision three 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. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.

Instrument has 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 of all the phases are displayed in tabular form 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.


  • 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



  Parameter Display      Range     Resolution Accuracy
1 Turns Ratio 1.9999 : 1 0.8-20000 : 1 5 Digit

0.8 - 100: ± 0.05% @ 10V

101 - 1000: ± 0.05% @ 10V

1001 - 1500: ± 0.05% @ 10V

1501 - 2000: ± 0.10% @ 10V

2001 - 4000: ± 0.20% @ 10V


0.8 - 100: ± 0.05% @ 40V

101 - 1000: ± 0.05% @ 40V

1001 - 1500: ± 0.05% @ 40V

1501 - 2000: ± 0.05% @ 40V

2001 - 4000: ± 0.05% @ 40V

4001 - 13000: ± 0.25% @ 40V


0.8 - 100: ± 0.03% @ 100V

101 - 1000: ± 0.05% @ 100V

1001 - 1500: ± 0.05% @ 100V

1501 - 2000: ± 0.05% @ 100V

2001 - 4000: ± 0.05% @ 100V

2001 - 4000: ± 0.05% @ 100V

13001 - 20000: ± 0.20% @ 100V

2 Excitation Current 0.1mA to 1.999A 0-2A 0.1mA ± 1mA
3 Phase Deviation 0.05 Deg to +179.95 Deg ± 180 Deg 0.05 Deg ± 0.05 Deg


Parameters TTRM 302
No of channels Three HV channels and three LV channels
Test Voltages 10V, 40V and 100V AC selectable voltages
Measurements Ratio, Ratio error, Phase angle deviation, Excitation current, vector group
OLTC Control Raise and Lower control to operate OLTC
Test Results Display (TFT) display, Thermal Printer.
Test Leads Suitable to test EHV Transformers
Paper Thermal, 58 mm wide roll form
Memory Inbuilt memory, can store 1000 records, with the 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 a moulded case
Environment -20º C to 55º C, 95% RH (non-condensing) Electrical noise normally found in charged EHV switchyards
Dimensions 435 X 315X 175 mm. (Max.)
Weight 10 Kg Approx



SA 30i+, the wireless Leakage Current Analyser from SCOPE is a State of the Art, On-line test system for Residual Life Assessment of Metal Oxide Surge Arresters. The instrument measures and directly displays the values of Total Leakage Current and Third Harmonic Resistive Leakage Current. It provides system harmonic compensation as per IEC 60099-5-B2. It provides Corrected Resistive Leakage Current after applying correction factors for change in system voltage & temperature.

The SA 30i+ can be pre-loaded with the LA identity details (LA Identification, Type, Serial Number,Location, Rated Voltage etc.) and tests conducted on the same ID of the arresters are saved under the same folder. Trend analysis software, SAData picks up this data and stores them in a similar fashion on a PC. This analysis software enables the user to take a decision to repair/replace the arresters considering safety limits.

SA 30i+ is designed to work under the hostile electrostatic noise found in live EHV switch yards upto 765 kV



  • Safe Online measurement due to wireless CT and Field Probe
  • In built temperature measurement facility enables calculation of temperature corrected leakage currents.
  • Correction of results to rated voltage of LA to eliminate eff ect of change in system voltage.
  • Date and time stamp on test results Results are displayed on large font, Big, back-lit LCD, printed on in-built thermal printer and can be stored in memory of the instrument.
  • SA 30i+, CT unit and Field Probe unit are powered by easily available re-chargeable Lithium-ion batteries. It works for a day’s testing needs on a single charge
  • The SA 30i+ is a switchyard compatible instrument. This makes the instrument extremely convenient to use.
  • Built-in standard calibration source and self-calibration check facility
  • USB communication port to transfer data to PC and Windows based PC Downloading & Analysis Software.
  • Facility for testing of GIS LAs available optionally


 Parameter  SA30i+
 Total Leakage Current Range  1 μA to 20 mA
 Resistive Leakage Current Range 1 μA to 20 mA 
Resolution   1 μA
 Accuracy Value ± 5% ± 1 μA 
 Inputs Wireless Clamp on CT and Wireless Field Probe optional external field PT Input (Voltage Peak method as per IEC 60099-5-A1 for GIS)
 Display 4 line x 20 character large backlit LCD with large font
 Compensation Automatic for System Harmonics, Temperature & System Voltage
 Temperature Sensor

Inbuilt Platinum Resistance Thermometer

with measurement range of -20°C to 55°C

Self-calibration Check Available
PC Connectivity USB Port (Standard), RS 232 & Ethernet (Optional)
Memory Storage capacity of 2000 results
Printer  58mm Inbuilt Thermal Printer

Battery as well as Mains powered Main Unit

Battery powered CT and FP Units

Internal Battery

SA30i+ - 11.1 V / 2200mAh Internal Rechargeable battery,

CT Unit - 11.1 V / 1150mAh Rechargeable battery,

Field Probe Unit - 11.1 V / 1150mAh Rechargeable battery. 

8 hours Battery life with full charge

Mains Supply  88 to 264 VAC, 47 to 63 Hz, Single Phase
Battery Charger Inbuilt in Main Unit, Connection to CT and Field Probe Provided


SA30i+ - 340 x 295 x 155 mm,

CT Unit - 340 x 73 x 40 mm,

Field Probe Unit - 340 x 82 mm Cylindrical 



SA30i+ - 3.8 Kg,

CT Unit - 0.7 Kg ,

Field Probe Unit - 0.75 Kg 


-20°C to 55°C, up to 95% RH (non-condensing), Storage Temp - 0-70°C

Type Testing

As per IEC 60068 / IS 9000 for Dry Heat, Damp Heat, Change of Temperature, Bump, Vibration and Mechanical Shock. For EMI / EMC & Safety as per relevant IEC Standards



The CFL SIMF, Cable Fault Secondary Impulse Filter 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 accurately.

Cable Fault Secondary Impulse Filter CFL SIMF is mainly used for high resistance and flashing fault test for power cable with the voltage below 10kV, and for fault location with Secondary Impulse with the conjunction of Pre-locator and HV surge generator. Latest fault locating technique for high resistance and flashing faults is Secondary Impulse Method (SIM). This method offers highly reliable results for faults on any type of power cable. It converts the faults to low resistance nature by creating an arc across the fault. 

It is a passive filter having its own output power source. It uses the energy of the surge generator to create an arc at the fault point. A high voltage switch incorporated in the output circuit facilitates selection of SIM or ICM mode.


  • Compact, Lightweight and Rugged
  • User-friendly operation
  • Automatic soft discharge upon shutdown
  • Selector Switch for SIM and ICM Mode
  • Elegant, aluminium housing



  • Arc Stabilization Time: ≥20 ms
  • HV Input: up to  35 kV DC with Negative Polarity
  • Input Power Supply: 230V±10%, 50Hz AC Single Phase
  • Environment: -10˚C to 50˚C, 95% RH (Non-condensing)
  • Dimension: 380mm x 282mm x 535mm
  • Weight: 17kg

The most versatile Cable Fault Pin Pointer yet, SCOPE’s CFL PP3 is suitable for pin-pointing as well as route tracing of any type of power cable. For pinpointing it is used along-with CFL SG Series Surge Generators from SCOPE and for route tracing it is used along-with Audio Frequency Generator, CFL AG2 from SCOPE. Advanced technology with features like time lapse measurement makes it a tool that can tackle complicated faults easily. 

Ambient noise during pin-pointing has always been a problem. CFL PP3 with simultaneous display of magnetic and acoustic waveforms indicates the exact fault spot eliminating the above problem. It guides the operator about the lay of the cable under test during pin-pointing. The LCD display constantly gives information to the operator about any deviation of the cable route being followed. The instrument offers results based on vision. Thus the ground microphone becomes secondary tool to locate the exact fault spot.

The instrument incorporates separate route tracing circuit to be used with Audio Frequency Generator, CFL AG from SCOPE. The system has flexibility of coupling to the cable galvanically (direct connection) for isolated cable and inductively coupled if the cable is live. The depth of the cable under test is located with conventional triangulation method with precise accuracy. This system configuration can also be used to pin-point low resistance welded faults, where surge generator cannot be used.


  • Can be used for both pinpointing as well as route tracing.
  • Both magnetic & acoustic inputs making pinpointing very convenient.
  • Digital filters to eliminate external influences.
  • Highly effective shielding against environmental noises.
  • Improved acoustic signal pick up features.
  • Highly sensitive magnetic signal pick up.
  • Large LCD display with backlit facility.
  • Internal Li-ion chargeable battery.
  • Specially made light weight case ensuring minimum strain to operator.
  • Water resistant and dust proof design.
  • User friendly and simple operation.


  • Filter Frequency: 200Hz, 300Hz, 500Hz
  • Time Delay Resolution: 0.2ms
  • General
    • Filter: Digital
    • Accuracy: High Resistance Fault: 0.1m
    • Route Tracing: 0.2m
    • Low Resistance Fault: 2m
  • Amplification: >120 dB, adjustable
  • Headphone Output: 3.5mm
  • Power Supply: 7.4 V Lithium-ion rechargeable battery• Power Consumption: 3W
  • Charger: Input: 230 VAC±10% ; Output: 8.4 VDC
  • Environment: 0 to 50oC, 95% RH (Non-condensing)
  • Dimension: 230mmx140mmx170mm
  • Weight: 1.5kg



The audio frequency Generator CFL-AG2 is especially designed for accurate locating of cable faults and joints according to the twist method. With the display of the output current, the selection of the correct adjustment is easy.


  • Powerful audio frequency transmitter up to 20W.
  • Frequency 1 kHz, quartz stabilized.
  • Potential-free output.
  • Output voltage in 7 level.
  • Two working modes, Continuous (CONT) and Intermittent (INTM).
  • Continuous and Intermittent.
  • Easy to operate.
  • Automatic protection of overload and with high reliability.
  • Indication of output current.


  • Output power: 20W
  • Max. output current: 2.8A ± 20%
  • Frequency: 1kHz Sine wave
  • Output voltage: In 7 steps: 4 – 7V/ 15 – 25V/
  • 30 – 40V/ 60 – 70V/ 90 – 100V/ 150 – 170V/ 200 – 230V
  • Operating modes: Continuous and Intermittent
  • Display: Output current
  • Output: Polarity terminals on panel
  • Power supply: AC 230V±10%, 50Hz±10%
  • Internal instrument protection: Over current limitation
  • Operating temperature: 20 to + 40 ° C
  • Dimensions (W x H x D): 275 mm x255mm x 130mm
  • Weight: 2kg


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 a long time to detect and hence a 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 the 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 a 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 PL4 Power Cable Fault Locator is a portable, easy to use cable fault pre-location instrument. It uses the Time Domain Reflection (TDR), Secondary Impulse Method / Multiple Impulse method (MIM) and Impulse Current Method (ICM) on low, medium and high voltage cables. Its measuring ranges enable pre-location on cable lengths from 500 m to 64km.

CFL PL4 is operated through function keys and touch screen, it is fully menu guided. This instrument is supplied with rechargeable lithium-ion batteries.


  • Adjustable Balance of instrument resistance to suit the cable under test.
  • Adjustable Gain for optimal waveform resolution.
  • Facility to store & compare the waveforms.
  • Housed in rugged, IP class moulded case.
  • Compact and lightweight.
  • Large range of Propagation Velocity from 90 to 300m/ μS covers all type of cables including pilot and telecom cable with any type of insulation.
  • Interactive menu-guidance
  • Touch screen and colour LCD
  • Measuring range up to 64 km
  • USB port for communication
  • Memory upto100 results


  • The voltage of the transmitting pulse: 30V
  • Width of transmitting pulse: 40 ns-3.56 μs
  • Voltage withstand: 400V AC (50/60Hz)
  • Output impedance: 5 - 80Ω
  • Measuring range : 0 – 64 km
  • Sampling rate: 100MHz (10ns)
  • Location error: TDR and MIM mode:≤±1m when detecting range ≤4 km ≤±4m when detecting range >4 kmICM mode:≤±4m when detecting range ≤4 km ≤±16m when detecting range>4Km
  • Propagation velocity : 90-300 m/μs
  • Number of echograms memories: >100
  • Display: 640x480, Touch screen and Color LCD
  • Charging voltage :Input: 110 – 265V AC Output: 8.4V± 10% DC
  • Rechargeable batteries: Operation time up to 5hrs
  • Operating temperature: -20 to 50 °C
  • Storage temperature: -40 to 60 °C
  • Type of protection IP54: Splash Proof and Dust Protected
  • Dimensions : 330mm×305mm×152mm



HISAC Ultima – new generation Circuit Breaker Dynamic Test Set from SCOPE …. The ultimate solution for testing Circuit Breakers of all types. HIASC Ultima is the most complete analyser for checking the dynamic performance of CBs in live EHV switchyards upto 765 kV.

HISAC Ultima can carry out Dynamic Contact Resistance Measurement on SIX breaks of THREE poles in one operation thereby significantly reducing stress on CB & testing downtime.

It offers flexibility to create pre-programmed Test Plans including all test settings for all types of circuit breakers available in a switchyard that can simply be recalled at the time of actual testing. This saves you from doing all settings in switchyards.

The Analysis software offers a range of utilities which enables effective Condition Monitoring of CB by comparing present test data with previous signatures and predicting future performance.


  • Tests all types of circuit breakers - LV, HV & EHV for all critical performance parameters of all the poles / breaks in a single shot.
  • Measures Main/PIR contact timings, bounce, non simultaneity of contacts and auxiliary contact timings.
  • Analyses contact travel characteristics for speed, insertion, contact gap, over-travel and rebound with suitable transducer and mounting fixture.
  • Records trip and close coil current characteristics.
  • Registers the signature of Dynamic Contact Resistance of main and arcing contacts, of all the 6 breaks simultaneously.
  • Displays settings, graphical and tabulated test results.
  • Prints test report in graphical format with test header and calculation footer, on external printer(not supplied).
  • Incorporates powerful and practical Windows™ based Test Manager Software to control & operate instrument; view, analyze and handle graphical test data on a laptop at high resolution.
  • Selects pre-programmed setup parameters and pass/fail limits through software.
  • Connects to CB with wear resistant test leads of sufficient length, having quick-fit connectors, suitable for EHV circuit breakers.
  • Moves easily within switchyard as the set can be mounted on a specially designed Trolley having large wheels & mains supply distribution board.
  • Travel – For evaluating travel characteristics of operating mechanisms, SCOPE offers rotary and linear resistive travel transducers with universal / specially designed fixtures to suit variety of CBs available.
  • DCRM module captures dynamic variation in contact resistance of main & arcing contacts during breaker operation.
  • Each DCRM module has in built independent isolated, rechargeable battery based 100A DC source.
  • The result is plotted in graphical form on the software screen, which can be further analysed for finding parameters such as contact gap, total insertion, arcing tip insertion, main and arcing contact resistance values etc.
  • Additional optional modules are available to measure PIR value and for monitoring Station DC (Coil voltage), Motor current or other static parameters through configurable Analog channels.
  • Type Tested as per IEC 60068, IEC 61326 & IEC 61010-1. CE marked
  • Supplied with suitable Test Leads & aluminium transport cases for instruments.
  • Travel Transducer and fixture as per order based on make, type & rating of CB.


Parameter HISAC Ultima
Trigger Options O, C, C-O, O-C, O-C-O
Timing Channel 24 : 4 Main + 4 PIR per pole, 3 poles Simultaneously
Auxiliary Contact Timing Channel 8 : 4 dry + 4 wet Expandable up to 6 Dry + 6 Wet
Best Time Resolution 50μS
Coil Current Channel 3 : Trip / Close coil current
Travel Channel 3 : Travel characteristic
Analog Channel for DCRM Input (Optional) 1 / 2 / 3 / 6 – as per DCRM modules selected
DCRM Resistance Range & Current (Optional) 1000 / 2000 / 4000 / 8000 μΩ Selectable, Current 100A DC
Static Contact Resistance (CRM) Channel As per DCRM modules selected
CRM Resistance Range 1000 / 2000 / 4000 / 8000 μΩ Selectable
Configurable Analog Channel (Optional) Up to 6: For inputs of station battery voltage, PIR value etc.
PIR value Measurement (Optional) 0-5000Ω with the resolution of 1Ω
Sampling Speed 1 / 2 / 5 / 10 / 20 kC Selectable
Display Display of laptop
Operation Interactive menu through laptop
PC Connectivity Ethernet
Printer External through laptop
Memory Memory of laptop
Dimensions Analyser - 500 x 270 x 300 mm, DCRM Rack - 500 x 270 x 250 mm
Instrument Weight Analyser - 12 kg DCRM Rack-18 Kg(3 DCRM modules per Rack)
Power 230 V AC ± 15% , 50Hz ± 10%

SCOT Series of CB Time Interval Meters from SCOPE are compact and reliable instruments to measure operation times of all types of HV and EHV circuit breakers under charged switchyard conditions.

Time Interval Meter measures and displays CLOSE, OPEN and C-O times of main contacts of 3 poles connected end to end, simultaneously.


  • Inbuilt clock to tag date and time of test to the readings.
  • 4 line 20 character back-lit LCD display for menu and results.
  • Inbuilt memory to hold results of last fifty tests.
  • Easy to use menu driven user interface for operation.
  • Diagnostics for instrument condition and calibration watch.


  • Channels: Three
  • Control of breaker :Through 300V / 30A SSRs to Trip and Close the connected circuit breaker
  • Output :4 line 20 character backlit LCD,RS 232 C port for downloading data to PC
  • Test Leads: Set of 15m, wear resistant Test Cables
  • Range : 999 milliseconds maximum
  • Resolution: 1 millisecond
  • Measuring accuracy : Value ± 0.05% ± 1 digit
  • Environment : 0° to 50° C, 95% RH (Non-condensing) Electrical noise normally found in live switchyards of upto 420kV
  • Power: 230V AC ± 15%, 50Hz ± 10%, 25 VA
  • Dimensions: 430 x 345 x 160 mm
  • Weight: 6 kg, instrument
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