Ed-Lab 2000 Coupling Capacitors and Measuring Devices backhome
Ed-Lab 2000 -S3 Coupling Capacitors and Measuring Devices. High Voltage Coupling-Capacitors are used mainly for Partial Discharge Measurements in High Voltage Testing as per IEC60270. The easurements of Partial Discharge according to IEC is based on measurement of High Frequency Voltage Drop across a Measuring Impedance in the Ground lead of the Test Object or of the Coupling Capacitor. Any
partial Discharges appearing in or on a Test Object Under High Frequency Charge Transfer between the high Voltage Potential and ground give rise to a High Frequency Current. This current produces a voltage
drop across the measuring impedance which is connected to the partial discharge meter for evaluation, measurement and
display.



 
FEATURES
  • Hermetic Sealing All oil insulated Coupling Capacitors are Hermetically Sealed against the outer atmosphere using a metallic expansion bellow. This prevents absorption of moisture by the active parts or the insulating oil.
    Mobile Base
  • Mobile Base All type coupling capacitors are mounted on a mobile base with swivel wheels allowing ease of transport.
  • Electrodes Type CES 3-120, CES 3-150 have aluminium cast flanges, CES 3-300 and above are provided with
    suitably dimensioned aluminium to toroidal electrodes for corona free operation up to rated voltage.
  • Electrical Connections All types of coupling Capacitors are equipped with an UHF coaxial socket for connection to the Measurement Impedance. The neutral end of the lowest capacitor stage is brought to this socket. The measuring cable socket of the oil insulated capacitors is protected against over voltage by gas filled surge diverters. When the measuring cable is removed, the connection socket of all capacitor types must be short circuited by a shorting Plug included in the
    supply. Grounding screw on the base is provided for connection of a ground lead.


Ed-Lab 2000 Series Interactive High Voltage Training System  
The Coupling Capacitors are insulated for indoor use. The Capacitor CES 3-60 to CES 3-600 are
Insulated. The low inductance wound capacitor elements are installed in an insulating Cylinder and
held in position with special fixtures. They are carefully dried in high vacuum and impregnated with
EHV grade oil. The insulation of the capacitor elements and the dimensions of the insulating
cylinder are designed for a test voltage of 120% of rated voltage.


Click here to download the complete data sheet on the Model CES 2000 - S3 Coupling Capacitors and Measurement Devices

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