Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1989-08-03
1990-09-11
Jennings, Derek S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
361341, 361385, 200150JA, H02B 104
Patent
active
049567420
ABSTRACT:
In a switch gear, such as a high-voltage enclosed switchboard and a vacuum load-break switch, of the type wherein items of electrical equipment including disconnecting devices and circuit-breaking devices are installed within a case, masses of a silicone gel are filled in compartments accommodating the electrical equipment instead of the sulfur hexafluoride used heretofore. An air space is left above the silicone gel in each compartment. This construction enables the provision of a safer switch gear of smaller size than heretofore.
REFERENCES:
patent: 3233069 (1966-02-01), Date
patent: 4570202 (1986-02-01), Nishida et al.
Patent Abstracts of Japan, vol. 5, No. 97, (E-86)(869), 12/15/81; and JP-A-56 118313, 9/17/81.
Sato Ken'ichi
Shiraishi Masazumi
Takagi Kunihiko
Jennings Derek S.
Kabushiki Kaisha Toshiba
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