Megger Centrix Cable Test Van System in 1- & 3-phased version

  • Product Description
  • Specifications
  • Features

Megger SebaKMTCentrix Test Van System in 1- and 3-phased version 

One of the most advanced power cable fault and test diagnotics vans developed based on the experiences and feedback from experienced users , providing the user following functionality : 
 
- Fully automatic measurement and recognition of parameters
- Automatic storage and protocolling
- Central control of all system functions
- Integration of the seven important and innovative prelocation methods
- Fast and efficient
- Arc reflection pre-location methods up to 80 kV
- Arc burning with burn take over
- Automatic analysis of the test data
- User-specific reports in PDF format
- Online documentation and help
 
All standard processes run automatically with the help of single button jog dial operation. The user can fully concentrate on his actual task - the fault location.
 
The operating concept
The control of the Centrix fault location system consists of a large monitor and a free positionable control panel, the control unit. This unit contains the central control element of the system - the Jogdial. The Linux® based operating system is very stable. 
The Centrix system stores all test and measurement data automatically. Data evaluation and transmission can be done easily. The Jogdial serves as control of all system functions. Via the Jogdial permit a direct access the online user manual, the test history, the phase selection and a quick menu. Operatinal steps which occur frequently during operation are automatically pre-selected by the Centrix system. The user then simply confirms the next operating step by pressing the Jogdail - simple and direct! 
 
Automated procedures
When using reflection methods, automatic functions deter-mine the end of the cable and set the ideal parameters for the measurement range and method. The ends as well as the fault location are automatically determined. For all pre-location methods, the end is immediately indicated by a marker. Due to the consistent ongoing development of the proven high voltage pre-location methods and due to the high performance of the software systems, excellent results are produced, even on faults which were previously hard to locate. The History function stores all measurement results automatically. No measurement will be lost. After seven days, the measurements are compressed and stored in daily files. 
In addition to its normal operation, the jogdial is also used to select the side menus. These sides menus provide easy access to the "Phase Selection", "History " the "Quick Select" as drop down menu and the "Help" function with online manual. Individually definable printed records permit these to be directly adapted for company-specific forms. 
 
Test 
The integrated test, using DC, 0.1 Hz Cosine Rectangular Wave voltage or a Sinusoidal Wave from (54 kV 0.1 Hz VLF), permits tests to be carried out throughout the entire medium voltage range. The DC tests are possible up to a maximum voltage of 40 or 80 kV. Test currents with a maximum 600 mA enable direct burning with the Centrix system, even without the use of external power burn units.
A fully integrated insulation tester up to 1 kV, capacitance measurement and sheath tests offer additional applications for all necessary maintenance work on cables and accessories. 
 
Pre-location 
In addition to the proven Decay travelling wave method and the impulse current methods (ICE), all other proven arc reflection methods can be integrated into the Centrix. The Centrix also offers the ARM* process in a new version which has been optimised for shorter distances. Alternatively, for greater distances, ARM* Plus (up to 32 kV) and Decay Plus (up to 80 kV) are available. The new ARMslide technology provides a choice of displaying up to 15 reflectograms out of one ARM shot. 
As a further feature, the Centrix includes the ARM burning Technology, which permits the monitoring of the fault location with a reflection measurement, during the burn process. The burning process can thus be controlled and automatically provides a pre-location result. For a cable preserving opera-tion, the ARM burning allows the burn duration to be as short as possible accordingly, the most effective pre-location methods are available to the Centrix. 
 
One of the most progressive methods of fault location is the ARM* Plus or Decay Plus double surge method, especially for higher voltage levels and long cables. The first step is a discharge from a surge generator or with DC voltage, to be able to cause a breakdown at the fault location. In a second step, the duration of the arc resulting from the breakdown is automatically extended by a second discharge from the 4 kV surge module and is then measured with the ARM* Plus or Decay Plus method. This results in perfect fault traces. 
 
IFL-Mode
For intermittent faults, the Centrix has an IFL mode available. This IFL Mode can save a lot of time, particularly in the area of branched low voltage distribution. Changes caused by short circuits that would only be visible as short reflections are clearly recognised by their envelope. 
Therefore it is not necessary to know the exact time at which the change occurs as this is immediately and permanently visible. This technology allows the simple verification of the exact fault positions and their Tee's in a branched low voltage network. 
 
Pinpointing
With a comparably low weight, dues to powerful surge modules with 1280, 1750 or 2560 Joules, the Centrix can produce high surge energy at voltage levels from 2 to 32 kV. Together with the new digiPHONE+, acoustic pinpointing thus becomes a simple, fast and reliable process. 
 
Four voltage levels from 5 to 20 kV enable sheath testing and, via the step voltage method, sheath fault pinpointing with a pulsed outout. The pinpointing technologies are rounded off by a powerful, integrated 200 W audio frequency transmitter. This supports the patented SignalSelect technology as well as the direct and capacitive step voltage method with AC voltage. These system options are supplemented by custom-made solutions, which we adapt as required to our customer requirements for the Centrix test van system.

 

Centrix 1 Phased
Method Basic Module Options
Insulation Testing
Up to 500 / 1000 V Connction sockets for external inslation tester ( max. 1000 v) Intergrated automatic or manual insulation, resistance and capaitance measurment, trend measurement (DAR and PI) of resistance up to10 min, automatic memory, comparison of measurements
ph-ph and ph-N, measurement for cable capacitance
Riso : 1 Ω ... 2 GΩ Riso : 1 Ω ... 2 GΩ
C: 0.0 µF ... 19.9 µF
Resistance low voltage< 24 V   R: 0.1 Ω … 1 kΩ
HV Testing
DC Testing 0 … 8kV,IN 195 mA,Imax 580 ±20 mA
>8 … kV , IN 20 mA, Imax 300 ±20 mA

>8 … 80 Kv , IN 13,5 mA,
Imax 180 ±20 mA
Automatic shut off at breakdown
VLF Testing   VLF 0 … 40 or 54kV 0.1 Hz Cousine Restangular Wave, max. Cable capacity 5 µF@ 36 kV, 21 µF@18 kV

VLF Sin 36 kVrms , max .cable capacity 5 µF @36 kV/0.01 Hz , 1 µF @ 36 kV/ 0.1 Hz
Diagonastic measurement   Diagnostic measurement of partial Discharge with OWTS @ power freqency
tan δ diagnostic measurement @ VLF sine
Sheath Testing o … 5 kV / 0 … 10 kV /0 … 15 Kv 0 … 20 … kV , Imax 580 ±20 mA  
Prelocation
Impulse Reflection Measurment modes Direct, Difference, Comparison, Average, Intermittent fault location IFL, Simultaneous display of six phases or memory contents in selectable colours. Automatic adjustment of gain, range and pluse dth.
ARM-Slide technology
 
Range 20m … 1280 km @ V/2 = 80 m/µs
Pluse dth: 20 ns … 10 µs
Pluse amplitude 30 … 160 V
Resolution 0,1 m @ 80 m/µs , 1,0 cm @ V/2 < 40 m/ µs
Sample rate 400 MHz
Gain -37 … +37 db for ProRange
Propagation Velocity V/2: 10 … 149 , 9 m/ µs, ft/µs oder nvp
Dynamic range: > 80 dB
output impedance 50 Ω
Display: 17" Colour SXGA , CCFL-Backlight, 300cd/m²
Data Storage: 2GB each for Program , Data and recovery
Connections: USB for printer and data, Ethernet, RS 232
Storage and Protocolling Automatic storage of all measurements. Protocol printout, also as PDF file or for transfer to the incl. Winkis PC software.
HV prelocation Methods
ARM   0 … 4/8/16/32 kV
ARM Plus 0 … 4/8/16/32 kV
Decay 0 … 40/80/ kV (max.DC test voltage)
Decay Plus 0 … 40/80/ kV (max.DC test voltage)
ICE 1 ph 0 … 4/8/16/32 kV
LV ARM Burning   0 … 4/8 kV, Imax 580 ±20 mA
ARM Burning   DC ignition up to 20 kV
Burning
DC 0…..8 kV, Imax 580 ± 20 mA >8 … 40 kV , IN 20 mA, Imax 300 ± 20 mA


>8 … 80 kV IN 13.5 mA, Imax 180 ±20 mA
0 … 20 kV , with automatic burn take-over to 600 V , 404 DC.
LV ARM Burning   0 … 4 / 8 kV , Imax 580 ±20 mA
AC   AC Burning 0 … 600V, max. 70rms
Pinpointing
Acoustic method with surge Modules

Surge rate
3 … 30 s 0 … 4/0 … 8 kV, 1200 J
0 … 4/0 … 8 kV, 1750 J 0 … 4/0 … 8 kV, 2400 J
0 … 16/0 … 32 kV, 1280 J
0 … 16 / 0 … 32 kV, 1750 J 0 ... 16/ 0 ... 32 kV, 2560 J
0 ... 2 kV . 1200 J
Surge pulse receiver   digiPHONE +
Sheath fault pinpointing with DC step voltage 0 … 5 / 10 / 15 / 20 kV
Imax 580 mA ± 20 mA
ESG step voltage receiver for shealth fault pinpointing
Duty cycle 1:3 / 1:6 / 1:12
Audio Frequency
output power   200 W
Frequencies 491 Hz , 982 Hz, 8.44 kHz also with signalselct, Supermaximum
Impedance 0.5 Ω … 1 kΩ/ automatic impedance matching
Sheath fault pinpointing with AC audio frequency Step voltage probe , direct or capacitive
HV Connections
Single phase   ECONOMY : 50 m ( manual cable drum)
COMFORT : 50 m (motorised cable drum)
PRO: 50 m ( motorised slip-ring cable drum)
Connections Power Supply
  Earth potential monitoring , 10 m (manual cable drum)

Intergrated safety system with FU/EP.

Separation transformer

Monitoring of: Voltage difference to protective earth Rise time of potential to protective earth Loop of protective earth to aux. earth Loop of cable shield to aux. earth
ECONOMY : mains cable 50 m (manual slip-ring cable drum), Protective earth cable 50 m (manual cable drum)

COMFORT: Mains cable 50 m (recoiling belt slip-ring cable drum), protective earth 50 m (recoiling belt cable drum) PRO: Mains cable 50 (motorised slip-ring cable drum) , Protective earth 50 m (motorised cable drum)

PRO : Mains cable 50 m (motorised slip-ring cable drum), Protective earth 50 m (motorised cable drum)
Teleflex connection   3-phased coax cable, 50 m (manual, recoiling band or motorised drum)
Safety cable drum   Safety cable drum 50 m (manual, recoiling band or motorised )with emergency -OFF , key interlock and status indicating lights
Operating conditions
Operating temperature HV Unit: '-25 ËšC … +55 ËšC  
Control Unit: '-5 ËšC … + 55 ËšC
Storage temperature -25 ËšC … +70 ËšC
Weight
  Depending on options 900.. 1300 kg  
Mains supply
Mains voltage 230 V, 50 Hz (16 A connection) 120 V, 60 Hz Generator opration from vehicle engine Battery operation up to 4 hours
Power consumption Sepration transfomer max. 3.6 kVA Separation transformer 5 kVA with CEE connector for extended requirements such as ARM Burning ,air condition etc.
 
Centrix 3 Phased
Method Basic Module Options
Insulation Testing
500 and 1000 V Intergrated automatic or manual insulation resistance and capacity measurement , trend measurement ( DAR and PI) of resistance up to 10 min., automatic memory , comparison of measurement  

ph-ph and ph-N , 6 measurement for resistance
ph-ph, 3 measurement for cable capacitance
Riso: 1 Ω .. 2 GΩ, Riso: 1 kΩ ... 2 GΩ
C : 0.0 µF ... 19.9 µF
< 24 V R : 0. 1 Ω … 1 kΩ
HV Testing
DC Testing 0…. 8 kV, IN 195 mA, Imax 580 ± 20 mA
> 8… 40 kV, IN 20 mA, Imax 300 ±
>8 … 80 kV, IN 13,5 mA,
Imax 180 ±20 mA
VLF Testing   VLF 0 … 40 or 54 kV 0.1 Hz Cosine Rectangular Wave, max. cable capacity 5 µF @ 54 kV, 8 µF@ 36 kV, 21 µF@ 18 kV VLF sin 36 kV rms, max. cable capacity 5 µF@36 kV/ 0.01 Hz, 1 µF @ 36 kV/ 0.1 Hz
Diagnostic measurement   Diagnostic measurement of partial Discharge with OWTS oscillating wave @ power frequency
Tan δ diagnpostic measurement @ VLF sin
Sheath Testing 0 … 5 kV/0 … 10 kV / 0 … 15 kV
0 … 20 kV, Imax 580 ±20 mA
 
Prelocation
Impulse Reflection Measurement modes Direct, Difference,Comparison , Avenge, Intermittent Fault location IFL, Simutaneous display of six phases or memory contents in selectable colours. Automatic adjustment of gain,range and pulse dth. ARMslide technology  
Range: 20 m … 1280 km @ v/2 = 80 m/µs
Pluse dth: 20 ns … 10 µs
Resolution: 0,1 m @ 80m/µs
sample Rate: 400 MHz
Gain -37 … +37 db + 0 … 22dB for ProRange
Propagation Velocity V/2: 10 … 149,9 m/µs, ft/µs oder nvp
Dynamic range: > 80 dB
Output impedance: 50 Ω
Display: 17" Colour SXGA, CCFL- Backlight,300cd/m²
Data storage: 2 GB each for Program , Data and recovery
Connections: USB for Printer and Data, Ethernet, RS 232
Storage and Protocolling Automatic storage of all measurement. Protocol printout , also as PDF file or for transfer to the incl. Winkis PC softwarre.
HV Prelocation Methods
ARM   0 … 4/ 8/16/ 32 kV
ARM Plus 0 … 4/ 8/16/ 32 kV
Decay 0 … 40/ 80/ kV (max. DC test voltage)
Decay Plus 0 … 40/ 80/ kV (max. DC test voltage)
ICE 1 ph 0 … 4/8/16/ 32 kV
ICE3 ph 0 … 4/8/16/ 32 kV
LV ARM Burning 0 … 4/8 kV. Imax 580 ±20 mA
ARM Burning DC ignition and take over up to 20 kV
Burning
DC 0 … kV , Imax 580 ±20 mA >8 … 40 kV, IN 20 mA,Imax 300 ±20 mA
> 8 … 80 kV , IN 13.5 mA Imax 180 ±20 mA
0 … 20 kV, with automatic take-over burn
ing to 600 V, 40 A DC.
LV ARM Burning   0 … 4 / 8 kV , Imax 580 ±20 mA
AC   AC Burning 0 … 600V, max. 70Arms
Pinpointing
Acoustic Method with
Surge Modules


Surge rate
3 … 30 s 0 … 4/ 0 … 8 kV, 1200 J 0 … 4/0 … 8 kV , 1750 J
0 … 4/0 … 8 kV, 2400 J 0 … 16/0 … 32 kV, 1280 J
0 ... 16/0 ... 32 kV, 1750 J
0 ... 16/0 ... 32 kV, 2560 J
0 ... 2 kV , 1200 J
Surge pulse receiver   digiPHONE+
Sheath fault pinpointing with DC step voltage 0 … 5/ 10/ 15/ 20 kV
Imax 580 mA ±20 mA
ESG step voltage receiver for sheath fault pinpointing
Duty cycle 1:3 / 1:6 / 1:12  
Audio Frequency
Output power   200 W
Frequencies 491 Hz, 982 Hz, 8.44 KHz also with SignalSelect, Supermaximum
Impedance 0.5 Ω … 1kΩ/ automatic impedance matching
Sheath fault pinpointing with AC audio frequency step voltage probe, direct or capacitive
HV Connection
3 x 1 Phase   ECONOMY: 50 m (manual cable drum) COMFORT: 50 m (motorised cable drum) PRO: 50 m (motorised slip-ring cable drum)
1 x 3 Phase   Multi: 50 m (motorised cable drum 3phase)
Connections Power Supply
  Earth poteintial monitoring, 10 m (manual cable drum)

Intergrated safety system with FU/EP

Separation transformer

Monitoring of: Voltage difference to protective earth Rise time of potential to protective earth Loop of protective earth to aux. earth
ECONOMY: Mains cable 50 m (manual slip-ring cable drum), Protective earth cable 50 m (manual cable drum)
COMFORT: Mains cable 50 m (recoiling belt slip-ring cable drum ), protective earth 50 m (recoiling belt cable drum)
PRO: Mains cable 50 m (motorised slip-ring cable drum), Protective earth 50 m (motorised cable drum)
Teleflex Connection   3-phase coax cable, 50 m (manual , recoiling band or motorised drum)
safety cable drum   safety cable drum 50 m (manual, recoiling band or motorised ) with emergency- OFF , key interlock and status indicating lights
Operating conditions
Operating temprature HV Unit: '-25 ËšC … +55 ËšC  
Contol Unit: '- 5 ËšC … +55 ËšC
Storage temprature - 25 ËšC … +70 ËšC
Weight
  depending on options 900 … 1300 kg  
Mains supply
Mains voltage 230V, 50 Hz (16 A connection) 120 V, 60 Hz
Generator operation from vehicle engine
Battery operation up to 4 hours
Power consumption Separation transformer max. 3.6 kVA Separation transformer 5 kVA with CEE-connector for extended requirements such as ARM Burning, air condition etc.
  • Fully automatic measurement and recognition of parameters.
  • Central control of all system functions.
  • Integration of the seven important and innovative prelocation methods.
  • Highest safety standards.
  • EasyGO operation concept.
  • Automatic storage and protocolling.

 

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Megger Centrix Cable Test Van System in 1- & 3-phased version
  • Product Description
  • Specifications
  • Features

Megger SebaKMTCentrix Test Van System in 1- and 3-phased version 

One of the most advanced power cable fault and test diagnotics vans developed based on the experiences and feedback from experienced users , providing the user following functionality : 
 
- Fully automatic measurement and recognition of parameters
- Automatic storage and protocolling
- Central control of all system functions
- Integration of the seven important and innovative prelocation methods
- Fast and efficient
- Arc reflection pre-location methods up to 80 kV
- Arc burning with burn take over
- Automatic analysis of the test data
- User-specific reports in PDF format
- Online documentation and help
 
All standard processes run automatically with the help of single button jog dial operation. The user can fully concentrate on his actual task - the fault location.
 
The operating concept
The control of the Centrix fault location system consists of a large monitor and a free positionable control panel, the control unit. This unit contains the central control element of the system - the Jogdial. The Linux® based operating system is very stable. 
The Centrix system stores all test and measurement data automatically. Data evaluation and transmission can be done easily. The Jogdial serves as control of all system functions. Via the Jogdial permit a direct access the online user manual, the test history, the phase selection and a quick menu. Operatinal steps which occur frequently during operation are automatically pre-selected by the Centrix system. The user then simply confirms the next operating step by pressing the Jogdail - simple and direct! 
 
Automated procedures
When using reflection methods, automatic functions deter-mine the end of the cable and set the ideal parameters for the measurement range and method. The ends as well as the fault location are automatically determined. For all pre-location methods, the end is immediately indicated by a marker. Due to the consistent ongoing development of the proven high voltage pre-location methods and due to the high performance of the software systems, excellent results are produced, even on faults which were previously hard to locate. The History function stores all measurement results automatically. No measurement will be lost. After seven days, the measurements are compressed and stored in daily files. 
In addition to its normal operation, the jogdial is also used to select the side menus. These sides menus provide easy access to the "Phase Selection", "History " the "Quick Select" as drop down menu and the "Help" function with online manual. Individually definable printed records permit these to be directly adapted for company-specific forms. 
 
Test 
The integrated test, using DC, 0.1 Hz Cosine Rectangular Wave voltage or a Sinusoidal Wave from (54 kV 0.1 Hz VLF), permits tests to be carried out throughout the entire medium voltage range. The DC tests are possible up to a maximum voltage of 40 or 80 kV. Test currents with a maximum 600 mA enable direct burning with the Centrix system, even without the use of external power burn units.
A fully integrated insulation tester up to 1 kV, capacitance measurement and sheath tests offer additional applications for all necessary maintenance work on cables and accessories. 
 
Pre-location 
In addition to the proven Decay travelling wave method and the impulse current methods (ICE), all other proven arc reflection methods can be integrated into the Centrix. The Centrix also offers the ARM* process in a new version which has been optimised for shorter distances. Alternatively, for greater distances, ARM* Plus (up to 32 kV) and Decay Plus (up to 80 kV) are available. The new ARMslide technology provides a choice of displaying up to 15 reflectograms out of one ARM shot. 
As a further feature, the Centrix includes the ARM burning Technology, which permits the monitoring of the fault location with a reflection measurement, during the burn process. The burning process can thus be controlled and automatically provides a pre-location result. For a cable preserving opera-tion, the ARM burning allows the burn duration to be as short as possible accordingly, the most effective pre-location methods are available to the Centrix. 
 
One of the most progressive methods of fault location is the ARM* Plus or Decay Plus double surge method, especially for higher voltage levels and long cables. The first step is a discharge from a surge generator or with DC voltage, to be able to cause a breakdown at the fault location. In a second step, the duration of the arc resulting from the breakdown is automatically extended by a second discharge from the 4 kV surge module and is then measured with the ARM* Plus or Decay Plus method. This results in perfect fault traces. 
 
IFL-Mode
For intermittent faults, the Centrix has an IFL mode available. This IFL Mode can save a lot of time, particularly in the area of branched low voltage distribution. Changes caused by short circuits that would only be visible as short reflections are clearly recognised by their envelope. 
Therefore it is not necessary to know the exact time at which the change occurs as this is immediately and permanently visible. This technology allows the simple verification of the exact fault positions and their Tee's in a branched low voltage network. 
 
Pinpointing
With a comparably low weight, dues to powerful surge modules with 1280, 1750 or 2560 Joules, the Centrix can produce high surge energy at voltage levels from 2 to 32 kV. Together with the new digiPHONE+, acoustic pinpointing thus becomes a simple, fast and reliable process. 
 
Four voltage levels from 5 to 20 kV enable sheath testing and, via the step voltage method, sheath fault pinpointing with a pulsed outout. The pinpointing technologies are rounded off by a powerful, integrated 200 W audio frequency transmitter. This supports the patented SignalSelect technology as well as the direct and capacitive step voltage method with AC voltage. These system options are supplemented by custom-made solutions, which we adapt as required to our customer requirements for the Centrix test van system.

 

Centrix 1 Phased
Method Basic Module Options
Insulation Testing
Up to 500 / 1000 V Connction sockets for external inslation tester ( max. 1000 v) Intergrated automatic or manual insulation, resistance and capaitance measurment, trend measurement (DAR and PI) of resistance up to10 min, automatic memory, comparison of measurements
ph-ph and ph-N, measurement for cable capacitance
Riso : 1 Ω ... 2 GΩ Riso : 1 Ω ... 2 GΩ
C: 0.0 µF ... 19.9 µF
Resistance low voltage< 24 V   R: 0.1 Ω … 1 kΩ
HV Testing
DC Testing 0 … 8kV,IN 195 mA,Imax 580 ±20 mA
>8 … kV , IN 20 mA, Imax 300 ±20 mA

>8 … 80 Kv , IN 13,5 mA,
Imax 180 ±20 mA
Automatic shut off at breakdown
VLF Testing   VLF 0 … 40 or 54kV 0.1 Hz Cousine Restangular Wave, max. Cable capacity 5 µF@ 36 kV, 21 µF@18 kV

VLF Sin 36 kVrms , max .cable capacity 5 µF @36 kV/0.01 Hz , 1 µF @ 36 kV/ 0.1 Hz
Diagonastic measurement   Diagnostic measurement of partial Discharge with OWTS @ power freqency
tan δ diagnostic measurement @ VLF sine
Sheath Testing o … 5 kV / 0 … 10 kV /0 … 15 Kv 0 … 20 … kV , Imax 580 ±20 mA  
Prelocation
Impulse Reflection Measurment modes Direct, Difference, Comparison, Average, Intermittent fault location IFL, Simultaneous display of six phases or memory contents in selectable colours. Automatic adjustment of gain, range and pluse dth.
ARM-Slide technology
 
Range 20m … 1280 km @ V/2 = 80 m/µs
Pluse dth: 20 ns … 10 µs
Pluse amplitude 30 … 160 V
Resolution 0,1 m @ 80 m/µs , 1,0 cm @ V/2 < 40 m/ µs
Sample rate 400 MHz
Gain -37 … +37 db for ProRange
Propagation Velocity V/2: 10 … 149 , 9 m/ µs, ft/µs oder nvp
Dynamic range: > 80 dB
output impedance 50 Ω
Display: 17" Colour SXGA , CCFL-Backlight, 300cd/m²
Data Storage: 2GB each for Program , Data and recovery
Connections: USB for printer and data, Ethernet, RS 232
Storage and Protocolling Automatic storage of all measurements. Protocol printout, also as PDF file or for transfer to the incl. Winkis PC software.
HV prelocation Methods
ARM   0 … 4/8/16/32 kV
ARM Plus 0 … 4/8/16/32 kV
Decay 0 … 40/80/ kV (max.DC test voltage)
Decay Plus 0 … 40/80/ kV (max.DC test voltage)
ICE 1 ph 0 … 4/8/16/32 kV
LV ARM Burning   0 … 4/8 kV, Imax 580 ±20 mA
ARM Burning   DC ignition up to 20 kV
Burning
DC 0…..8 kV, Imax 580 ± 20 mA >8 … 40 kV , IN 20 mA, Imax 300 ± 20 mA


>8 … 80 kV IN 13.5 mA, Imax 180 ±20 mA
0 … 20 kV , with automatic burn take-over to 600 V , 404 DC.
LV ARM Burning   0 … 4 / 8 kV , Imax 580 ±20 mA
AC   AC Burning 0 … 600V, max. 70rms
Pinpointing
Acoustic method with surge Modules

Surge rate
3 … 30 s 0 … 4/0 … 8 kV, 1200 J
0 … 4/0 … 8 kV, 1750 J 0 … 4/0 … 8 kV, 2400 J
0 … 16/0 … 32 kV, 1280 J
0 … 16 / 0 … 32 kV, 1750 J 0 ... 16/ 0 ... 32 kV, 2560 J
0 ... 2 kV . 1200 J
Surge pulse receiver   digiPHONE +
Sheath fault pinpointing with DC step voltage 0 … 5 / 10 / 15 / 20 kV
Imax 580 mA ± 20 mA
ESG step voltage receiver for shealth fault pinpointing
Duty cycle 1:3 / 1:6 / 1:12
Audio Frequency
output power   200 W
Frequencies 491 Hz , 982 Hz, 8.44 kHz also with signalselct, Supermaximum
Impedance 0.5 Ω … 1 kΩ/ automatic impedance matching
Sheath fault pinpointing with AC audio frequency Step voltage probe , direct or capacitive
HV Connections
Single phase   ECONOMY : 50 m ( manual cable drum)
COMFORT : 50 m (motorised cable drum)
PRO: 50 m ( motorised slip-ring cable drum)
Connections Power Supply
  Earth potential monitoring , 10 m (manual cable drum)

Intergrated safety system with FU/EP.

Separation transformer

Monitoring of: Voltage difference to protective earth Rise time of potential to protective earth Loop of protective earth to aux. earth Loop of cable shield to aux. earth
ECONOMY : mains cable 50 m (manual slip-ring cable drum), Protective earth cable 50 m (manual cable drum)

COMFORT: Mains cable 50 m (recoiling belt slip-ring cable drum), protective earth 50 m (recoiling belt cable drum) PRO: Mains cable 50 (motorised slip-ring cable drum) , Protective earth 50 m (motorised cable drum)

PRO : Mains cable 50 m (motorised slip-ring cable drum), Protective earth 50 m (motorised cable drum)
Teleflex connection   3-phased coax cable, 50 m (manual, recoiling band or motorised drum)
Safety cable drum   Safety cable drum 50 m (manual, recoiling band or motorised )with emergency -OFF , key interlock and status indicating lights
Operating conditions
Operating temperature HV Unit: '-25 ËšC … +55 ËšC  
Control Unit: '-5 ËšC … + 55 ËšC
Storage temperature -25 ËšC … +70 ËšC
Weight
  Depending on options 900.. 1300 kg  
Mains supply
Mains voltage 230 V, 50 Hz (16 A connection) 120 V, 60 Hz Generator opration from vehicle engine Battery operation up to 4 hours
Power consumption Sepration transfomer max. 3.6 kVA Separation transformer 5 kVA with CEE connector for extended requirements such as ARM Burning ,air condition etc.
 
Centrix 3 Phased
Method Basic Module Options
Insulation Testing
500 and 1000 V Intergrated automatic or manual insulation resistance and capacity measurement , trend measurement ( DAR and PI) of resistance up to 10 min., automatic memory , comparison of measurement  

ph-ph and ph-N , 6 measurement for resistance
ph-ph, 3 measurement for cable capacitance
Riso: 1 Ω .. 2 GΩ, Riso: 1 kΩ ... 2 GΩ
C : 0.0 µF ... 19.9 µF
< 24 V R : 0. 1 Ω … 1 kΩ
HV Testing
DC Testing 0…. 8 kV, IN 195 mA, Imax 580 ± 20 mA
> 8… 40 kV, IN 20 mA, Imax 300 ±
>8 … 80 kV, IN 13,5 mA,
Imax 180 ±20 mA
VLF Testing   VLF 0 … 40 or 54 kV 0.1 Hz Cosine Rectangular Wave, max. cable capacity 5 µF @ 54 kV, 8 µF@ 36 kV, 21 µF@ 18 kV VLF sin 36 kV rms, max. cable capacity 5 µF@36 kV/ 0.01 Hz, 1 µF @ 36 kV/ 0.1 Hz
Diagnostic measurement   Diagnostic measurement of partial Discharge with OWTS oscillating wave @ power frequency
Tan δ diagnpostic measurement @ VLF sin
Sheath Testing 0 … 5 kV/0 … 10 kV / 0 … 15 kV
0 … 20 kV, Imax 580 ±20 mA
 
Prelocation
Impulse Reflection Measurement modes Direct, Difference,Comparison , Avenge, Intermittent Fault location IFL, Simutaneous display of six phases or memory contents in selectable colours. Automatic adjustment of gain,range and pulse dth. ARMslide technology  
Range: 20 m … 1280 km @ v/2 = 80 m/µs
Pluse dth: 20 ns … 10 µs
Resolution: 0,1 m @ 80m/µs
sample Rate: 400 MHz
Gain -37 … +37 db + 0 … 22dB for ProRange
Propagation Velocity V/2: 10 … 149,9 m/µs, ft/µs oder nvp
Dynamic range: > 80 dB
Output impedance: 50 Ω
Display: 17" Colour SXGA, CCFL- Backlight,300cd/m²
Data storage: 2 GB each for Program , Data and recovery
Connections: USB for Printer and Data, Ethernet, RS 232
Storage and Protocolling Automatic storage of all measurement. Protocol printout , also as PDF file or for transfer to the incl. Winkis PC softwarre.
HV Prelocation Methods
ARM   0 … 4/ 8/16/ 32 kV
ARM Plus 0 … 4/ 8/16/ 32 kV
Decay 0 … 40/ 80/ kV (max. DC test voltage)
Decay Plus 0 … 40/ 80/ kV (max. DC test voltage)
ICE 1 ph 0 … 4/8/16/ 32 kV
ICE3 ph 0 … 4/8/16/ 32 kV
LV ARM Burning 0 … 4/8 kV. Imax 580 ±20 mA
ARM Burning DC ignition and take over up to 20 kV
Burning
DC 0 … kV , Imax 580 ±20 mA >8 … 40 kV, IN 20 mA,Imax 300 ±20 mA
> 8 … 80 kV , IN 13.5 mA Imax 180 ±20 mA
0 … 20 kV, with automatic take-over burn
ing to 600 V, 40 A DC.
LV ARM Burning   0 … 4 / 8 kV , Imax 580 ±20 mA
AC   AC Burning 0 … 600V, max. 70Arms
Pinpointing
Acoustic Method with
Surge Modules


Surge rate
3 … 30 s 0 … 4/ 0 … 8 kV, 1200 J 0 … 4/0 … 8 kV , 1750 J
0 … 4/0 … 8 kV, 2400 J 0 … 16/0 … 32 kV, 1280 J
0 ... 16/0 ... 32 kV, 1750 J
0 ... 16/0 ... 32 kV, 2560 J
0 ... 2 kV , 1200 J
Surge pulse receiver   digiPHONE+
Sheath fault pinpointing with DC step voltage 0 … 5/ 10/ 15/ 20 kV
Imax 580 mA ±20 mA
ESG step voltage receiver for sheath fault pinpointing
Duty cycle 1:3 / 1:6 / 1:12  
Audio Frequency
Output power   200 W
Frequencies 491 Hz, 982 Hz, 8.44 KHz also with SignalSelect, Supermaximum
Impedance 0.5 Ω … 1kΩ/ automatic impedance matching
Sheath fault pinpointing with AC audio frequency step voltage probe, direct or capacitive
HV Connection
3 x 1 Phase   ECONOMY: 50 m (manual cable drum) COMFORT: 50 m (motorised cable drum) PRO: 50 m (motorised slip-ring cable drum)
1 x 3 Phase   Multi: 50 m (motorised cable drum 3phase)
Connections Power Supply
  Earth poteintial monitoring, 10 m (manual cable drum)

Intergrated safety system with FU/EP

Separation transformer

Monitoring of: Voltage difference to protective earth Rise time of potential to protective earth Loop of protective earth to aux. earth
ECONOMY: Mains cable 50 m (manual slip-ring cable drum), Protective earth cable 50 m (manual cable drum)
COMFORT: Mains cable 50 m (recoiling belt slip-ring cable drum ), protective earth 50 m (recoiling belt cable drum)
PRO: Mains cable 50 m (motorised slip-ring cable drum), Protective earth 50 m (motorised cable drum)
Teleflex Connection   3-phase coax cable, 50 m (manual , recoiling band or motorised drum)
safety cable drum   safety cable drum 50 m (manual, recoiling band or motorised ) with emergency- OFF , key interlock and status indicating lights
Operating conditions
Operating temprature HV Unit: '-25 ËšC … +55 ËšC  
Contol Unit: '- 5 ËšC … +55 ËšC
Storage temprature - 25 ËšC … +70 ËšC
Weight
  depending on options 900 … 1300 kg  
Mains supply
Mains voltage 230V, 50 Hz (16 A connection) 120 V, 60 Hz
Generator operation from vehicle engine
Battery operation up to 4 hours
Power consumption Separation transformer max. 3.6 kVA Separation transformer 5 kVA with CEE-connector for extended requirements such as ARM Burning, air condition etc.
  • Fully automatic measurement and recognition of parameters.
  • Central control of all system functions.
  • Integration of the seven important and innovative prelocation methods.
  • Highest safety standards.
  • EasyGO operation concept.
  • Automatic storage and protocolling.

 

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