SU678668A1 - Load connecting device - Google Patents

Load connecting device

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Publication number
SU678668A1
SU678668A1 SU772561371A SU2561371A SU678668A1 SU 678668 A1 SU678668 A1 SU 678668A1 SU 772561371 A SU772561371 A SU 772561371A SU 2561371 A SU2561371 A SU 2561371A SU 678668 A1 SU678668 A1 SU 678668A1
Authority
SU
USSR - Soviet Union
Prior art keywords
connecting device
load connecting
load
thyristors
devices
Prior art date
Application number
SU772561371A
Other languages
Russian (ru)
Inventor
Михаил Иосифович Колкер
Original Assignee
Предприятие П/Я Г-4696
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я Г-4696 filed Critical Предприятие П/Я Г-4696
Priority to SU772561371A priority Critical patent/SU678668A1/en
Application granted granted Critical
Publication of SU678668A1 publication Critical patent/SU678668A1/en

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Description

II

. Изобретение относитс  к электротехнике , в частности к устройствам дл  планого включени  нагрузки, например дл  включени  нагревателей с положительным температурным коэффициентом.. The invention relates to electrical engineering, in particular, to devices for the planned switching on of a load, for example for switching on heaters with a positive temperature coefficient.

Известны устройства дл  плавного включени  нагрузки, содержащие тиристоры с блоком фазового управлени  ij Однако эти устройства не подход т дл  питани  нагревателей с положительным температурным коэффициентом, так как не обеспечивают ограничени  тока при пуске.Uninterrupted load devices are known that contain thyristors with a phase control unit ij. However, these devices are not suitable for supplying heaters with a positive temperature coefficient, since they do not provide current limiting during start-up.

Наиболее близким по своей технической сущности к изобретению  вл етс  устройство дл  плавного включени  нагрузки , содержащее встречно-параллельно включенные тиристо л 1, включенные последовательно с нагрузкой и датчиком тока нагрузки, и блок фазового управлени  тиристорами Сз The closest in technical essence to the invention is a device for smoothly turning on a load, comprising thyristor-1 connected back-to-back, connected in series with the load and a load current sensor, and a C3 thyristor phase control unit

Недостатком этого устройства  вл егс  бросок тока при его включегуш, обусловленный тем, что в момент включени The disadvantage of this device is the inrush current when it is switched on, due to the fact that at

на выходе датчика тока сигнал отсутствует , и, следовательно, система управлени  формирует импульсы управлени , обеспечивающие полное отпирание тиристоров. Это приводит к тому, что в первый полупериод после включени  возможно срабатывание быстродействующей электроннсй защиты, а также выход тиристоров из стро .there is no signal at the output of the current sensor, and, therefore, the control system generates control pulses that ensure the total unlocking of the thyristors. This leads to the fact that in the first half-period after switching on it is possible to trigger a high-speed electronic protection, as well as the output of thyristors from the system.

Целью изобретени  5Шл етс  повышение надежности рйботы устройства.The aim of the invention is to improve the reliability of the device.

Claims (1)

1. Патент США № 3562621, кл. 32О-1,з. Патент США № 3514580,1. US patent No. 3562621, CL. 32O-1, h. US Patent No. 3514580, .кл. 219-482, 1968..cl. 219-482, 1968. ГR ЯtfItf 11 / : 1111 /: 11 2 2 Г 4)kJG 4) kJ
SU772561371A 1977-12-29 1977-12-29 Load connecting device SU678668A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772561371A SU678668A1 (en) 1977-12-29 1977-12-29 Load connecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772561371A SU678668A1 (en) 1977-12-29 1977-12-29 Load connecting device

Publications (1)

Publication Number Publication Date
SU678668A1 true SU678668A1 (en) 1979-08-05

Family

ID=20740817

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772561371A SU678668A1 (en) 1977-12-29 1977-12-29 Load connecting device

Country Status (1)

Country Link
SU (1) SU678668A1 (en)

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