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Megger System Classic Single or Three Phased Cable Test Van

The safety system meets highest expectations, monitoring the HV-compartment doors, emergency-off buttons as well as monitoring of earth loop resistance, touch voltage and dangerous voltage rise rates. The system will immediately shut off, ground and prevent re-energizing until safety is restored and confirmed by the operator. Interlocks prevent damage and wrong operations.
Automated Procedures
When using reflection methods, automatic functions of the Teleflex determine the end of the cable and set the ideal parameters for the measurement range and method. The fault location is automatically determined and, for all prelocation methods, is immediately shown by a marker. Due to the consistent ongoing development of the proven high voltage prelocation methods and due to the high performance of the software systems, excellent results are produced, even on faults which were previously hard to locate.
VLF - Test : An integrated test with 0.1 Hz VLF (Very Low Frequency) voltage up to 54 kV allows non-destructive tests for the entire medium voltage range, especially on XLPE cables.
Available voltage shapes are sine wave voltage with an integrable Tan Delta diagnosis, as well as the long-established cosine rectangular voltage for the largest testable cable capacitance possible
DC voltage test: The DC test of up to 80 kV is a standard feature. Up to 130 kV is available optionally. In addition, the Classic system provides the option to integrate cable sheath testing, pre location and pinpointing. The insulation test is conveniently operated from the Teleflex. 
Burning : The digital control unit of the BPS 5000-d simplifies the logging and operating the test data. For burning, 15 kV with up to 6 A DC and up to 110 A AC are available. The BPS is the central control unit for burning, direct current and VLF testing.
ARM (Arc Reflection Method): Active and passive ARM prelocation have the great advantage to show a very detailed graph that corresponds directly with the result of a normal TDR reflection graph. This method is always the first choice in cable fault location. The main difference between active and passive methods is the weight and size of the instruments, where the active version is more powerful.
The simplest method is the passive ARM measurement. It will extend the duration of the discharge of the surge wave generator and thereby the HV-flashover at the fault location. The ARM measurement with the active LSG 3-E arc stabilization filter will also ignite the fault with the standard surge wave generator but the flashover will be extended by an additional 2 kV surge with an accordingly higher current.
ICE Impulse Current Equipment: This well-established cable fault prelocation method is part of any Classic test van. The 3-phase-ICE is even able to locate cable faults in branched medium voltage networks where normal reflection measurements cannot be applied due to too many sources for reflections.
Decay Method: When encountering faults that need a higher flashover voltage than the typical 32 kV of a surge wave generator, the Classic System offers another possibility, applying the DC test equipment up to 130 kV and measuring a travelling wave for fault location. 
IFL mode: For intermittent faults, the Classic System has an IFL mode available, which 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 tiny reflections are clearly recognized by their envelope. Therefore it is not necessary to know the exact time at which the change occurred as this is immediately and permanently visible. This technology allows the simple verification of the exact positions and branches in a branched low voltage network. 
Sheath Fault Location
  • The latest sheath fault test and location systems can be integrated into the Classic system. It provides:
  • High-performance cable testing up to 10 kV and 750 mA 
  • Bipolar prelocation for preventing incorrect readings due to thermo-electric and galvanic influences, which also ensures a quick and reliable sheath fault location even on long cables.
  • Pinpointing with DC step voltage and also with audio frequency and all that with the convenient easyGO operation 

Product Specification
Method Basic Module Options
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 / 1:2
Audio Frequency
Output power   200 W
Frequencies 491 Hz, 982, 8.44 kHZ also with Sinnalselect, Supermaximum
Impedance 0.5 Ω … 1 kΩ / auytomatic 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  able drum)

Connections Power Supply
  Earth potential monotoring, 10  m (manual cable drum)Integrated safety system with FU/EP.                                

Separation transformer              
Monitoring of:Voltage difference to protective earth Rise time of potential to protectiveearth Loop of protetive earth to aux. earth Loop of cable shield to aux. earth
ECONOMY: Mains cable 50m (manual slip-ring cable drum), protective earth cable 50 m (manual cable drum)                                       
COMFORT:Mains cable 50m (recoiling belt slip-ring cable drum), protective earth 50 m (motorised cable drum)               
PRO:Mains cable 50m (motorised slip-ring  cable drum), Protective earth 50 m (motorised cable drum)

Teleflex Connections   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 e mergency- OFF key interlock and status indicating lights
Operating conditions    
Operating tempeature HV Unit :  '-25 ËšC … +55ËšC  
Control Unit:  '-5  ËšC … +55ËšC  
Storage temprature -25 ËšC … +70 ËšC  
  depending on options 900… 1300 kg   
Mains Supply    
Mains Voltage 230 V, 50 Hz (16 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 requirement such as ARM Burning, air condition etc.

  • Fast and precise location of cable faults
  • High surge energy of 1750 or 3500 Joules
  • Highest safety standard
  • High redundancy due to integrated but separate components
  • Flexible adaptation to the customer requirements
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