In the design of lines and equipment considering the minimum level of insulation required, it is necessary to define surge voltage in terms of its peak value and return to lower values in terms of time or duration. Although the peak voltage may be considerably higher than normal voltage, the stress in the insulation may exist for only a very short period of time.
BIL is an abbreviation for Basic Impulse Level. Impulse tests are dielectric tests that consist of the application of a high frequency steep wave front voltage between windings, and between windings and ground. The BIL of a transformer is a method of expressing the voltage surge that a transformer will tolerate without breakdown.
Basic Insulation Level Definition
The complete 200 kV BIL deadbreak connector system includes T-bodies, insulating plugs, junctions, caps, reducing tap plugs and transformer bushings. Combining the 200 kV BIL deadbreak system with Cooper Power series 200 kV nameplate rated transformer means no longer sacrificing system protection due to limited component ratings.
Standard – Distribution
The magnetic pulse system utilizes recent technological advances, based on magnetic pulse technology, for the welding, forming and crimping applications. It offers a unique alternative to manufacturers, as it allows them to improve significantly their product designs and production results.
NOJA Power has recently invested $10 million into its new building which doubled the size of the company campus and enhanced the R&D, assembly and test facilities. One of the key additions has been the new in-house Impulse and Power Frequency (PF) Laboratory. The laboratory has been commissioned and calibrated by international High Voltage (HV) equipment experts and consultants.
PREMIUM SOLUTIONS IN HIGH VOLTAGE. SINCE 1904.
The disconnectors, delivered on schedule in April this year, are earmarked for installation at NamPower’s Lithops and Khan transmission substations in the Namib Desert. Khan is an existing 220 kV switching substation that is being extended with the addition of a new bay, while Lithops is a new 220 kV-132 kV substation that is being built.
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Sunbelt Transformers supplies the industrial, utility, and commercial communities with high-quality transformer units and systems. With more than 30 years of experience, our customers have come to rely on Sunbelt for matching their unique needs to the best possible product for their success. Choose from hundreds of new, surplus, and reconditioned units that are in-stock and ready to ship.