SU57096A1 - Device for signaling grounding for direct current purposes - Google Patents
Device for signaling grounding for direct current purposesInfo
- Publication number
- SU57096A1 SU57096A1 SU22813A SU22813A SU57096A1 SU 57096 A1 SU57096 A1 SU 57096A1 SU 22813 A SU22813 A SU 22813A SU 22813 A SU22813 A SU 22813A SU 57096 A1 SU57096 A1 SU 57096A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- grounding
- signaling
- direct current
- current purposes
- ground
- Prior art date
Links
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
Дл цепей возбуждени синхронных машин и оперативных цепей посто нного тока (питаемых аккумул торами или машинами посто нного тока) необходимо примен ть контроль изол ции всей цепи по отношению к земле. С одной стороны это необходимо по услови м надежности эксплоатации, так как по вление второго заземлени равносильно короткому замыканию или неправильному действию аппаратов (если одно из заземлений находитс в катушках ). С другой стороны заземление одного полюса цепи нежелательно с точки зрени техники безопасности, так как прикооновение к другому полюсу создает дл человека опасность воздействи полного напр жени цепи.For the excitation circuits of synchronous machines and operational DC circuits (powered by batteries or DC machines), it is necessary to apply isolation control of the entire circuit with respect to ground. On the one hand, this is necessary under the terms of reliability of operation, since the appearance of a second ground is equivalent to a short circuit or incorrect operation of the apparatus (if one of the ground connections is in the coils). On the other hand, the grounding of one pole of the circuit is undesirable from the point of view of safety engineering, since the attachment to the other pole creates a danger for a person to be exposed to the full voltage of the circuit.
В соответствии со своим назначением контрольное устройство должно удовлетвор ть следующим основным требовани м:In accordance with its purpose, the control device must meet the following basic requirements:
1. Сигнализировать о снижении сопротивлени изол ции цепи на землю ниже установленного предела (например , 100000 ом). При этом действие устройства должно быть обеспечено при по влении заземлени во вращающемс коре машины посто нного тока1. Signal that the insulation resistance to ground drops below the set limit (for example, 100,000 ohms). In this case, the operation of the device must be ensured when grounding appears in the rotating core of a DC machine.
(когда точка заземлени перебегает от полюса к полюсу). Точно эак же устройство должно действовать, когда машины остановлены (дл проверки, ремонта).(when the ground point runs from pole to pole). Similarly, the device must act when the machines are stopped (for inspection, repair).
2.Устройство должно иметь такое включение, чтобы не повышать (хот бы кратковременно) потенциал полюсов цепи посто нного тока по отношению к земле более, чем на от рабочего напр жени . В то же врем устройство должно безопасно выдерживать кратковременные повышени напр жени , вызываемые гашением пол , выключением аппаратов и пр.2. The device must have such an inclusion so as not to increase (at least briefly) the potential of the poles of the DC circuit with respect to the earth more than the operating voltage. At the same time, the device must safely withstand short-term increases in voltage caused by field quenching, switching off apparatuses, etc.
3.Устройство должно быть надежным в работе и не требовать частых проверок, регулировок и смены запасных частей (не чаще одного раза в пЬЛгода).3. The device must be reliable in operation and not require frequent inspections, adjustments and replacement of spare parts (no more than once a year).
Предметом насто щего авторского свидетельства вл етс электронное устройство дл контрол изол ции на землю, которое удовлетвор ет перечисленным требовани м.The subject of this author's certificate is an electronic device for controlling the insulation to earth, which satisfies the listed requirements.
Сущность изобретени , заключающа с в оригинальном сочетании р да известных элементов: дл достижени поставленной цели, по сн етс черугеThe essence of the invention, consisting in the original combination of a number of well-known elements: to achieve the goal, is explained in another
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU22813A SU57096A1 (en) | 1939-03-23 | 1939-03-23 | Device for signaling grounding for direct current purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU22813A SU57096A1 (en) | 1939-03-23 | 1939-03-23 | Device for signaling grounding for direct current purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU57096A1 true SU57096A1 (en) | 1939-11-30 |
Family
ID=48239958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU22813A SU57096A1 (en) | 1939-03-23 | 1939-03-23 | Device for signaling grounding for direct current purposes |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU57096A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2559026C2 (en) * | 2013-12-11 | 2015-08-10 | Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" | Earth signalling device in direct-current circuits |
-
1939
- 1939-03-23 SU SU22813A patent/SU57096A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2559026C2 (en) * | 2013-12-11 | 2015-08-10 | Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" | Earth signalling device in direct-current circuits |
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