SU540337A1 - Light system of modular control of thyristor blocks - Google Patents

Description

one

This invention relates to HIGH-SOLT converter technology, in particular, to light control units of control units.

In known similar systems, with an increase in the operating voltage, the requirements for the insulating strength of the blocks and, consequently, for the insulating strength of the waveguides, decrease. In order to meet these requirements, it is necessary to increase the length of the optical fibers, which leads to an increase in signal loss in the optical fiber.

TaiKHM way, the application of vectors in high voltage tyri, burn 10; M block, going directly from the ground, although it allows to create an optimal device in a constructive attitude, however, leads to a complication in the manufacture of optical fibers and requires a more powerful light source to compensate for increased losses light guide.

When a thyristor unit is operating at power lines, it is also necessary to ensure good reliability of the control system.

iB of the proposed system, in addition to the optical fiber, parallel pai6oTai channels are used, which form the rays and transmit them through the air to the optical fiber, the input end of which is biased by a contingent optical device, such as a cone, and a pair: allelic receivers on each module.

This allows us to increase the reliability of insulation strength and K.N.D. system and create a cross-dubbing mode.

Pa the drawing shows a diagram of the proposed light system modular control. Alenlen thyristor unit.

The triggering electrical impulse arrives simultaneously to the duplicated sources of light pulses 1 located on the ground potential. The radiation of the sources is focused by the optical system 2 onto the entrance opening of the optical centering device 3 connected to the collector optical fiber 4 located on the block, and is split in duplex photocell 5 of each module of the block 6.

As a light-concentrating device for supplying and combining signals from both sources to the output end of the fiber, various systems can be used: lens, mirror prism systems.

However, all these devices have a small K.1P.D. (for example mirror no more than 50%).

Most simply, this operation is performed when the optical concentrating cone is hollow with a mirror image.

Either from the practical glass with the use of the principle of the FULL INSIDE and the external operation.

Claims (1)

Invention Formula A single modular system for the control of three-phase blocks with the use of a flexible collector-collector, characterized in that, in order to increase more than 11 and reliably, the insulation is insulated and efficient. The systems, in addition to the fan guide, used parallel working channels that form the rays and transmit them through the air Ored to the fiber, the input end of which is equipped with an optical concentrating optical device, such as a cone, and parallel receivers on each module. --CD