Nuclear reactor fail-safe unit having the function of control relay and current regulation
US4054486A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1975 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Dec 3, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic unit for controlling the safety absorbers of a nuclear reactor comprises a self-supplied AND.sub.1 circuit for performing logical multiplication of input signals each capable of assuming one out of two values, series-connected modules each constituted by a dc/ac converter, the output of the last module being coupled to the first converter and to a regulator input at which is obtained a logical a.c. signal whose value corresponds to the result of multiplication of the different input signals, a static intensity regulator with negative current feedback for modulating the width of the square waves delivered by an isolation transformer, a rectifier for delivering a constant current to a load impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.