Surge Arrestor Testing Equipment

Surge Arrestor Testing Equipment (4)

Tuesday, 11 August 2015 15:33 Written by

SA 30i

SA 30i and SA 10i the Leakage Current Analyser and Leakage Current Meter from SCOPE are two state of the art on-line test system for Residual Life Assessment of metal oxide (Zno) Surge Arresters. The instrument measures and directly displays the values of resistive and total leakage current. it is capable to work accurately and safely in swithchyard upto 765kV.

SA30i measures Third Harmonic Resistive leakage Current (THRC) with system harmonic compensation in accordance with IEC 60099-5 B2 (which is best recommended), whereas SA10i, a hand held Leakage Current Meter measures THRC without system harmonic compensation in accordance with IEC 60099-5 B1.

Features

  • Simple, lightweight, portable, feature-rich, affordable.
  • Measures 3rd harmonic resistive current with system harmonic compensation*, and the total leakage current.
  • In-built temperature measurement facility enables calculation of temperature compensated leakage currents.
  • Results are displayed on LCD, printed on thermal printer and can be stored in the in-built memory of the instrument. 1000 test records can be stored.
  • Built-in standard calibration source for self-calibration check facility.
  • USB communication port to transfer data to PC having Windows based data management software.
  • SA identity creation, Data management, Analysis and Trending through SAData software.
  • Facility for testing of GIS LAs available optionally thorugh Field PT input.
  • The instrument is supplied along with a low noise Clamp-on CT, Field Probe assembly for system harmonics compensation*, Test Leads suitable for EHV class LAs*, Thermal paper roll*, SAData software installation CD and a Calibration Certificate.

* - Features available only in SA30i.

Specifications

Parameter SA 30i SA 10i
 Total Leakage Current Range  Up to 10mA 
 Field Probe Current Range  Up to 10mA 
 Resolution  Up to 1µA  Not available
 Inputs  External Clamp-on CT, Field Probe, External PT (110V AC) - Optional External Clamp-on CT
Display 4 line x 20 character large backlit LCD 2 line x 16 character backlit LCD
Compensation Automatic for Noise, System Voltage, System Harmonic & Temperature Automatic for Noise, System Voltage & Temperature
 Temperature Sensor Inbuilt silicon thermometer Inbuilt silicon thermometer
Self-calibration Check Built-in source available No
PC Connectivity Yes 
Memory 1000 results
Printer Inbuilt Thermal Printer Not available
Battery 11V / 2200mAh, Internal rechargeable Li-ion battery 7.4V / 1150mAh, Internal rechargeable Li-ion battery
Battery charging 100-270V AC, 50 / 60Hz ± 10%, 1 Phase 100-270V AC, 50 / 60Hz ± 10%, 1 Phase
Dimension 415 x 330 x 200mm 190 x 129 x 50mm
Instrument Weight 7.5 kg 1.5 kg
Tuesday, 03 May 2016 07:12 Written by

SA 30i+

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

 

Features

  • 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

Specifications

 Parameter  SA30i+
 Total Leakage Current Range  1 μA to 20 mA
 Resistive Leakage Current Range 1 μA to 10 mA 
 Field Probe Current Range  0 μA to1 mA 
 Resolution  1 μA
 Accuracy Value ± 5% ± 1 μA 
 Inputs External Clamp-on CT, Field Probe,Optional External PT input (110V AC) 
 Display 4 line x 20 character large backlit LCD 
 Self-calibration Check Available 
 Connections Wireless CT and Field Probe. Only earthing required 
Memory 1000 Results
Power Battery as well as Mains supply

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. 

Mains Supply 230V AC ± 15%, 50 / 60Hz ± 10%, 1 Phase 
 Dimension

 

SA30i+ - 340 x 295 x 155 mm,

CT Unit - 340 x 73 x 40 mm,

Field Probe Unit - 340 x 82 mm Cylindrical 

 Weight

 

SA30i+ - 3.8 Kg,

CT Unit - 0.7 Kg ,

Field Probe Unit - 0.75 Kg 

Environment 

-10°C to 50°C, upto 95% RH (non-condensing)

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

 

Tuesday, 11 August 2015 14:56 Written by

SA10i

SA 30i and SA 10i the Leakage Current Analyser and Leakage Current Meter from SCOPE are two state of the art on-line test system for Residual Life Assessment of metal oxide (Zno) Surge Arresters. The instrument measures and directly displays the values of resistive and total leakage current. it is capable to work accurately and safely in swithchyard upto 765kV.

SA30i measures Third Harmonic Resistive leakage Current (THRC) with system harmonic compensation in accordance with IEC 60099-5 B2 (which is best recommended), whereas SA10i, a hand held Leakage Current Meter measures THRC without system harmonic compensation in accordance with IEC 60099-5 B1.

Features

  • Simple, lightweight, portable, feature-rich, affordable.
  • Measures 3rd harmonic resistive current with system harmonic compensation*, and the total leakage current.
  • In-built temperature measurement facility enables calculation of temperature compensated leakage currents.
  • Results are displayed on LCD, printed on thermal printer and can be stored in the in-built memory of the instrument. 1000 test records can be stored.
  • Built-in standard calibration source for self-calibration check facility.
  • USB communication port to transfer data to PC having Windows based data management software.
  • SA identity creation, Data management, Analysis and Trending through SAData software.
  • Facility for testing of GIS LAs available optionally thorugh Field PT input.
  • The instrument is supplied along with a low noise Clamp-on CT, Field Probe assembly for system harmonics compensation*, Test Leads suitable for EHV class LAs*, Thermal paper roll*, SAData software installation CD and a Calibration Certificate.

* - Features available only in SA30i.

Specifications

Parameter SA 30i SA 10i
 Total Leakage Current Range  Up to 10mA 
 Field Probe Current Range  Up to 10mA 
 Resolution  Up to 1mA  Not available
 Inputs  External Clamp-on CT, Field Probe, External PT (110V AC) - Optional External Clamp-on CT
Display 4 line x 20 character large backlit LCD 2 line x 16 character backlit LCD
Compensation Automatic for Noise, System Voltage, System Harmonic & Temperature Automatic for Noise, System Voltage & Temperature
 Temperature Sensor Inbuilt silicon thermometer Inbuilt silicon thermometer
Self-calibration Check Built-in source available No
PC Connectivity Yes 
Memory 1000 results
Printer Inbuilt Thermal Printer Not available
Battery 11V / 2200mAh, Internal rechargeable Li-ion battery 7.4V / 1150mAh, Internal rechargeable Li-ion battery
Battery charging 100-270V AC, 50 / 60Hz ± 10%, 1 Phase 100-270V AC, 50 / 60Hz ± 10%, 1 Phase
Dimension 415 x 330 x 200mm 190 x 129 x 50mm
Instrument Weight 7.5 kg 1.5 kg
Tuesday, 11 August 2015 15:02 Written by

SA Mon

SAMon from SCOPE is a powerful Online Leakage Current Monitoring system for continuous monitoring of metal oxide (Zno) Surge Arrester leakage current in live EHV / UHV substations.

It consists of portable Field Unit which is intalled near SA in IP enclosure, a PC at control room on which SAMon software is intalled and a Communication link between the two.

SAmon monitors Third Harmonic Resistive Leakage Current (THRC) which reflects the healthiness of SA, as per IEC 60099-5 B2.


Field Unit contuinously measures THRC at pre-set time interval and sends to central PC located in control room for monitoring all SAs in substation, multiple Field Units are used.

Features

  • State of the art, on-line test system for Residual Life Assessment of Surge Arrester (LA).
  • Measures 3rd harmonic resistive leakage current and total leakage current as per IEC 60099-5 B2.
  • I nbuilt system harmonic compensation.
  • Temperature compensation through inbuilt temperature sensor.
  • Specially designed low-noise permanent mounting type CT and field probe.
  • Authentic, time-stamped test results, data management through built-in real time clock, memory, PC connectivity & analysis software.

Features of SAMon software

  • Create library of SA to be monitored with all relevant ID & rating data.
  • Set time interval between measurements. SAM Supplied with suitable Test Leads & aluminium transport case on unit will capture & transmit data accordingly.
  • Trend analysis of SA performance possible by using Analysis Software.
  • The SAMon analysis software is installed in the central PC. At decided interval PC sends request to the analyzing unit. The analyzing unit samples data from all the surge arresters calculates
    the parameters and send it to PC.

Specifications

  • Total leakage current range – up to 10mA.
  • Resistive leakage current range – up to 10mA.
  • Field probe current range – up to 1mA.
  • Resolution – 1μA.
  • Accuracy – 5%
  • Power – 90 to 230 V AC or DC.
  • Communication: RF, wired or fiber optic communication with remote PC.