ASTM D3382-95(2001)e1
Historical Standard: ASTM D3382-95(2001)e1 Standard Test Methods for Measurement of Energy and Integrated Charge Transfer Due to Partial Discharges (Corona) Using Bridge Techniques
SUPERSEDED (see Active link, below)
ASTM D3382
1. Scope
1.1 These test methods cover two bridge techniques for measuring the energy and integrated charge of pulse and pulseless partial discharges:
1.2 Test Method A makes use of capacitance and loss characteristics such as measured by the transformer ratio-arm bridge or the high-voltage Schering bridge (Test Methods D150). Test Method A can be used to obtain the integrated charge transfer and energy loss due to partial discharges in a dielectric from the measured increase in capacitance and tan [delta] with voltage.
1.3 Test Method B makes use of a somewhat different bridge circuit, identified as a charge-voltage-trace (parallelogram) technique, which indicates directly on an oscilloscope the integrated charge transfer and the magnitude of the energy loss due to partial discharges.
1.4 Both test methods are intended to supplement the measurement and detection of pulse-type partial discharges as covered by Test Method D1868, by measuring the sum of both pulse and pulseless discharges per cycle in terms of their charge and energy.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precaution statements are given in Section 7.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D1711 Terminology Relating to Electrical Insulation
D1868 Test Method for Detection and Measurement of Partial Discharge (Corona) Pulses in Evaluation of Insulation Systems
IEEE Documents
IEEEStandardC57.124 Recommended Practice for the Detection of PD and the Measurement of Apparent Charge in Dry-Type TransformersAEIC Documents
AEICCS5-87 Specifications for Thermoplastic and Crosslinked Polyethylene Insulated Shielded Power Cables Rated 5 through 35 kV, 9th Edition, 1987Keywords
bridge circuits; bridge techniques; capacitance increase; charge-voltage-trace bridge; corona; discharge energy; discharge inception level; energy; harmonics; integrated charge transfer; internal discharges; ionizing voltage; loop trace; partial discharges; pseudoglow discharge; pulse discharge; pulseless-glow discharge; pulse measurements; solid insulating materials; surface discharge; transformer-ratio-arm bridge;
ICS Code
ICS Number Code 17.220.20 (Measurement of electrical and magnetic quantities)
DOI: 10.1520/D3382-95R01E01
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