Field evaluation of 69-kV outdoor Polysil reg sign insulators

Technical Report · Thu Mar 01 00:00:00 EST 1990

OSTI ID:7077470

Richenbacher, A G ^[1]

---

1. Pennsylvania Power and Light Co., Allentown, PA (USA)

This report, together with previous interim reports, documents and summarizes the field performance of 69 kV Polysil{reg sign} insulators during the field trial period from January, 1983 to December, 1988. These insulators were manufactured for the Electric Power Research Institute by Lindsey Industries in 1979. A description of the insulator development and manufacturing process is contained in the EPRI Final Report EL1281-1. Following their manufacture, the insulators were delivered, in the form of test racks of 17 Polysil{reg sign} insulators and one porcelain insulator, to twelve United States utilities and the Instituto de Investigaciones Electricas (IIE) in Mexico. These racks were subsequently installed and energized at twenty-five test sites during the latter half of 1979 and early 1980 by the project participants for the purpose of analyzing the outdoor field performance of these insulators and comparing the relative effect on performance of variations in composition, coating, electrical grading method, and shape represented by individual insulators within the test racks. This report documents the effects of the various Polysil{reg sign} insulator parameters on electrical performance in the field over a specific period of 6 years. However, the insulators had been energized for approximately 3 years prior to the initiation of this project and, although specific performance data is not available for that time period, the overall effects of field exposure for that additional time period (total of 9 years) are seen in the results of this report. 3 refs., 23 figs., 9 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Pennsylvania Power and Light Co., Allentown, PA (USA)
• Sponsoring Organization: EPRI
• OSTI ID: 7077470
• Report Number(s): EPRI-EL-6763
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING
ELECTRICAL INSULATORS
PERFORMANCE TESTING
COATINGS
CONCRETES
DATA PROCESSING
DESIGN
DOCUMENTATION
ELECTRIC FIELDS
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
FAILURE MODE ANALYSIS
INSPECTION
LEAKS
MANUFACTURERS
MATERIALS TESTING
MEASURING METHODS
MECHANICAL PROPERTIES
MEXICO
POLYMERS
PORCELAIN
PROGRESS REPORT
SPECIFICATIONS
BUILDING MATERIALS
DEVELOPING COUNTRIES
DOCUMENT TYPES
ELECTRICAL EQUIPMENT
EQUIPMENT
LATIN AMERICA
MATERIALS
NORTH AMERICA
PHYSICAL PROPERTIES
PROCESSING
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
240201* - Power System Networks
Transmission & Distribution- AC Systems- (1990-)
426000 - Engineering- Components
Electron Devices & Circuits- (1990-)
420500 - Engineering- Materials Testing