High-voltage direct-voltage source

Details High-voltage direct-voltage source High-voltage direct-voltage source

1986-06-11

1987-08-25

Salce, Patrick R.

Electric power conversion systems

Current conversion

With voltage multiplication means

363126, 320 1, H02M 318

Patent

active

046897348

ABSTRACT:
The high-voltage direct-voltage source is composed of a bank of high-voltage capacitors and a charging circuit for charging the capacitors. A monitoring unit is connected in parallel with at least one of the high-voltage capacitors. After a predetermined limit value of the charging voltage has been exceeded, this monitoring unit emits a signal to a control device of the charging circuit preventing the further charging of the bank. The input of the monitoring unit is formed by a resistive voltage divider comprising a high-voltage-side and a low-voltage-side resistor.
A high-voltage direct-voltage source is to be created in which a dielectric overloading of the high-voltage capacitors can be avoided in a simple manner which is insensitive to electric disturbances. This is achieved by the fact that the high-voltage-side resistor of the resistive voltage divider consists at least partially of non-linear voltage-dependent resistance material.
Such a high-voltage direct-voltage source can be used, for example, in high-voltage direct-voltage transmission systems or in circuits for the synthetic testing of high-voltage circuit breakers.

REFERENCES:
patent: 3681672 (1972-08-01), Strauss
patent: 4329595 (1982-05-01), Watson
patent: 4451743 (1984-05-01), Suzuki et al.
patent: 4467248 (1984-08-01), Watanabe et al.

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