MV DAC-30 Test and diagnosis system for medium voltage cables
■The MV DAC-30 is a DAC (Damped AC Voltage) test set with a peak voltage of 30 kV The test set can be used for quality control on newly installed cables, in accordance wrth the IEEE 400.4 standard. In addition, to prevent unplanned outages, the unit can also be used for condition-monitoring purposes on aged cable circuits.
■The main use of the DAC test set is to identify, evaluate and locate partial discharge (PD) faults in the insulation and accessories of all types of meduim voltage power cables PD activity is an indication of incipient insulation faults and is therefore widely regarded as one of the best 'early warning' indicators of deteriorating medium and high voltage insulation.
■Partial discharges are regarded as the main breakdown cause for MV and HV cables. Performing offline PD measurements on MV and HV cables using a DAC voltage test set helps support the asset management process so that the correct decisions are made for future maintenance and replacement activities.
■Since the DAC frequency of the test voltage is close to nominal AC service conditions, all measured PD activities can be accurately evaluated and compared Wth the power frequency. The PD inception voltage (PDIV) and PD extinction voltage (PDEV) can be easily determined due to the decaying amplitude of the test voltage.
■The system consists of two parts: the control unit (including laptop), and the HV unit. The HV unit divides in two, making transport and set-up much easier. One of the cnique features of the MV DAC-30 is that the HV unit consists of a voltage source with an internal PD detector. Unlike with other PD measurement systems, the cable under test is the only accessible live component when testing with the MV DAC-30, making it much safer.
■The operating software guides the user through the entire process. Some key features are:
▲Integrated cable database
▲Fully automatic calibration
▲Live PD mapping: evaluation and display of results during the actual measurement
▲Repating by mouse click
●FEATURES
■Safe-to-touch, enclosed metallic casing
■Internal PD Detecta
■"Live" evaluation and display of results
■Two part design for easy transportation
■Conforms to VDE safety standards
■High test capacity
●Safest operation thanks to fully isolated design.
●Uses well proven DAC excitation voltage for PD measurements (acc. IEC 60270)
●Real-time data evaluation and display of results
●Two part design for easy transportation
100 6132-S 、 200 6817 、 200 8839 、 200 8840 、 9 001 7826 、 9 001 7827 、 MV DAC-30 |
|
|
|
Datasheet |
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
2021/08/22 |
|
V02 |
|
|
|
208 KB |
- +1 Like
- Add to Favorites
Recommend
- Meenyi Technology Selected as One of Chengdu Top 100 New Economy Enterprises Again
- Efficient Power Conversion (EPC) Expands 100 V eGaN FET Family Offering Designers Best-in-Class Performance and Cost for 48 V DC-DC Conversion
- SLKOR Achieved Revenue Growth of over 100% in 2023
- Relay Industry Manufacturer Hongfa Ranked Top 100 Private Enterprises in Xiamen City of 2023
- KYOCERA Named Among “Top 100“ Global Innovators for 7th Year by Clarivate
- Epson Becomes the Manufacturing Industry‘s First to Switch to 100% Renewable Electricity at All Sites in Japan
- Nidec Receives “Clarivate Top 100 Global Innovator 2024” Award
- Newsight Imaging Selected Among 100 Emerging Companies to Watch in 2023 by EE Times
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.