Two-pole overcurrent protection device

Details Two-pole overcurrent protection device Two-pole overcurrent protection device

1980-03-19

1982-05-25

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252T, 307305, 357 23, 357 38, 357 39, 361 91, H03K 1772

Patent

active

043318843

ABSTRACT:
A two-pole overcurrent protection device, intended for connection into a current-carrying conductor, comprises a normally conducting thyristor having members for firing the thyristor at low off-state voltage. The thyristor has a member for turning off the thyristor by short-circuiting one of its injecting junctions. Voltage-sensing members sense the on-state voltage drop across the thyristor and influence the short-circuiting member for turning off the thyristor when the on-state voltage drop reaches a pre-determined level. The overcurrent protection device may be constructed integrally with one single semiconductor plate.

REFERENCES:
patent: 3263128 (1966-07-01), White
patent: 4091434 (1978-05-01), Suzuki et al.
patent: 4224634 (1980-09-01), Svedberg
patent: 4244000 (1981-01-01), Ueda et al.

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