The Experts below are selected from a list of 99 Experts worldwide ranked by ideXlab platform

Chuki Ikeda - One of the best experts on this subject based on the ideXlab platform.

  • development of a method of partial discharge detection in extra high voltage cross linked polyethylene Insulated Cable lines
    IEEE Transactions on Power Delivery, 1992
    Co-Authors: Ginzo Katsuta, Atsushi Toya, K Muraoka, Takeshi Endoh, Yasuo Sekii, Chuki Ikeda
    Abstract:

    Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) Cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE Cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded in developing a highly sensitive novel method of measuring partial discharge in XLPE Cable lines. Partial discharges in a 275 kV XLPE Cable live line have been measured using this method. As a result, a detection sensitivity of 1 pC has been achieved. >

  • development of a method of partial discharge detection in extra high voltage cross linked polyethylene Insulated Cable lines
    IEEE Transactions on Power Delivery, 1992
    Co-Authors: Ginzo Katsuta, Atsushi Toya, K Muraoka, Takeshi Endoh, Yasuo Sekii, Chuki Ikeda
    Abstract:

    Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) Cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE Cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded in developing a highly sensitive novel method of measuring partial discharge in XLPE Cable lines. Partial discharges in a 275 kV XLPE Cable live line have been measured using this method. As a result, a detection sensitivity of 1 pC has been achieved. >

N N Srinivas - One of the best experts on this subject based on the ideXlab platform.

  • on line partial discharge detection in Cables
    IEEE Transactions on Dielectrics and Electrical Insulation, 1998
    Co-Authors: N H Ahmed, N N Srinivas
    Abstract:

    This paper describes an on-line PD (partial discharge) detection technique appliCable to power Cables. The method can be applied to both wire screen and solid shielded Cables. In wire screen shielded Cables, PD components with frequencies <100 MHz can be detected at distances over 150 m from the source, PD activity with levels as low as 20 pC can be detected within 100 m. However, in the case of solid shielded Cables, PD levels of /spl ges/50 pC can be measured within 60 m in the frequency range <50 MHz. This method also can be utilized to check Cable accessories such as splices and terminations. PD pulses with frequencies to /spl sim/300 MHz can be measured near the joints and terminations. The suitability and the sensitivity of the VHF technique were checked against two other alternative PD detecting techniques (pulse phase analyzer and high speed digital oscilloscope) by performing PD measurements in standard air gap and defects induced in EPR-Insulated Cable under laboratory-controlled conditions. The suitability and sensitivity of the VHF method were as good as the two alternative PD detection techniques.

  • on line partial discharge detection in Cables
    Conference on Electrical Insulation and Dielectric Phenomena, 1997
    Co-Authors: N H Ahmed, N N Srinivas
    Abstract:

    This paper describes an on-line partial discharge (PD) detection technique in power Cables. The technique uses a digital spectrum analyzer with a high-frequency preamplifier and several types of high-frequency inductive sensors. In extruded and impregnated Cables, the PD detection is made in the VHF range. The suitability and the sensitivity of the VHF technique were checked against two other conventional PD detecting methods (Pulse Phase Analyzer and Fast Digital Scope) by performing PD measurements in EPR-Insulated Cable under laboratory-controlled conditions. The suitability and sensitivity of the VHF method were as good as the two conventional PD detection method. The VHF method runs used to conduct on-site PD measurement in several power Cables. These measurements were conducted while the Cables were in service. Special care was given to distinguish between external electromagnetic noise and electromagnetic signals produced by the PD activities inside the Cable insulation.

Ginzo Katsuta - One of the best experts on this subject based on the ideXlab platform.

  • development of a method of partial discharge detection in extra high voltage cross linked polyethylene Insulated Cable lines
    IEEE Transactions on Power Delivery, 1992
    Co-Authors: Ginzo Katsuta, Atsushi Toya, K Muraoka, Takeshi Endoh, Yasuo Sekii, Chuki Ikeda
    Abstract:

    Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) Cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE Cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded in developing a highly sensitive novel method of measuring partial discharge in XLPE Cable lines. Partial discharges in a 275 kV XLPE Cable live line have been measured using this method. As a result, a detection sensitivity of 1 pC has been achieved. >

  • development of a method of partial discharge detection in extra high voltage cross linked polyethylene Insulated Cable lines
    IEEE Transactions on Power Delivery, 1992
    Co-Authors: Ginzo Katsuta, Atsushi Toya, K Muraoka, Takeshi Endoh, Yasuo Sekii, Chuki Ikeda
    Abstract:

    Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) Cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE Cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded in developing a highly sensitive novel method of measuring partial discharge in XLPE Cable lines. Partial discharges in a 275 kV XLPE Cable live line have been measured using this method. As a result, a detection sensitivity of 1 pC has been achieved. >

N H Ahmed - One of the best experts on this subject based on the ideXlab platform.

  • on line partial discharge detection in Cables
    IEEE Transactions on Dielectrics and Electrical Insulation, 1998
    Co-Authors: N H Ahmed, N N Srinivas
    Abstract:

    This paper describes an on-line PD (partial discharge) detection technique appliCable to power Cables. The method can be applied to both wire screen and solid shielded Cables. In wire screen shielded Cables, PD components with frequencies <100 MHz can be detected at distances over 150 m from the source, PD activity with levels as low as 20 pC can be detected within 100 m. However, in the case of solid shielded Cables, PD levels of /spl ges/50 pC can be measured within 60 m in the frequency range <50 MHz. This method also can be utilized to check Cable accessories such as splices and terminations. PD pulses with frequencies to /spl sim/300 MHz can be measured near the joints and terminations. The suitability and the sensitivity of the VHF technique were checked against two other alternative PD detecting techniques (pulse phase analyzer and high speed digital oscilloscope) by performing PD measurements in standard air gap and defects induced in EPR-Insulated Cable under laboratory-controlled conditions. The suitability and sensitivity of the VHF method were as good as the two alternative PD detection techniques.

  • on line partial discharge detection in Cables
    Conference on Electrical Insulation and Dielectric Phenomena, 1997
    Co-Authors: N H Ahmed, N N Srinivas
    Abstract:

    This paper describes an on-line partial discharge (PD) detection technique in power Cables. The technique uses a digital spectrum analyzer with a high-frequency preamplifier and several types of high-frequency inductive sensors. In extruded and impregnated Cables, the PD detection is made in the VHF range. The suitability and the sensitivity of the VHF technique were checked against two other conventional PD detecting methods (Pulse Phase Analyzer and Fast Digital Scope) by performing PD measurements in EPR-Insulated Cable under laboratory-controlled conditions. The suitability and sensitivity of the VHF method were as good as the two conventional PD detection method. The VHF method runs used to conduct on-site PD measurement in several power Cables. These measurements were conducted while the Cables were in service. Special care was given to distinguish between external electromagnetic noise and electromagnetic signals produced by the PD activities inside the Cable insulation.

Yasuo Sekii - One of the best experts on this subject based on the ideXlab platform.

  • development of a method of partial discharge detection in extra high voltage cross linked polyethylene Insulated Cable lines
    IEEE Transactions on Power Delivery, 1992
    Co-Authors: Ginzo Katsuta, Atsushi Toya, K Muraoka, Takeshi Endoh, Yasuo Sekii, Chuki Ikeda
    Abstract:

    Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) Cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE Cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded in developing a highly sensitive novel method of measuring partial discharge in XLPE Cable lines. Partial discharges in a 275 kV XLPE Cable live line have been measured using this method. As a result, a detection sensitivity of 1 pC has been achieved. >

  • development of a method of partial discharge detection in extra high voltage cross linked polyethylene Insulated Cable lines
    IEEE Transactions on Power Delivery, 1992
    Co-Authors: Ginzo Katsuta, Atsushi Toya, K Muraoka, Takeshi Endoh, Yasuo Sekii, Chuki Ikeda
    Abstract:

    Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) Cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE Cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded in developing a highly sensitive novel method of measuring partial discharge in XLPE Cable lines. Partial discharges in a 275 kV XLPE Cable live line have been measured using this method. As a result, a detection sensitivity of 1 pC has been achieved. >