SU119226A1 - Device for signaling the presence of voltage in three-phase electrical installations - Google Patents
Device for signaling the presence of voltage in three-phase electrical installationsInfo
- Publication number
- SU119226A1 SU119226A1 SU604517A SU604517A SU119226A1 SU 119226 A1 SU119226 A1 SU 119226A1 SU 604517 A SU604517 A SU 604517A SU 604517 A SU604517 A SU 604517A SU 119226 A1 SU119226 A1 SU 119226A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- voltage
- signaling
- phase electrical
- electrical installations
- phase
- Prior art date
Links
Landscapes
- Audible And Visible Signals (AREA)
Description
Дл сигнализации о наличи напр жени в трехфазных установках примен ют устройства, содержащие одну неоновую лампу в качестве индикатора, котора подключаетс к контролируемой цепи через три активных сопротивлени .To signal the presence of voltage in three-phase installations, devices are used that contain one neon lamp as an indicator, which is connected to the controlled circuit through three active resistances.
Однако известные устройства не обеспечивают подачи требуемого сигнала при наличии напр жени как на двух и трех, так и на одной фазе контролируемой цепи.However, the known devices do not provide the required signal in the presence of voltage on both two and three, and on one phase of the monitored circuit.
Дл устранени указанного недостатка предлагаетс выполн ть сопротивлени неравными по величине, соедин ть их в звезду, а неоновую лампу включать между нулевой точкой звезды и нулевым проводом цепи или землей.To eliminate this drawback, it is proposed to perform unequal resistances, connect them into a star, and include a neon lamp between the zero point of the star and the neutral wire or ground.
На чертеже изображена схема предлагаемого устройства.The drawing shows a diagram of the proposed device.
Устройство содержит неоновую лампу / и три активных беспроволочных сопротивлени 2.The device contains a neon lamp / and three active wireless resistances 2.
Сопротивлени 2 имеют различную величину и соедин ютс в звезду, а неонова лампа / включаетс между пулевой точкой звезды и нулевым проводом или землей. При таком включении сигнальное устройство продолжает работать при исчезновении напр жени на любых двух фазных шинах или при перегорании любых двух предохранителей, т. е. оно работает во всех случа х, когда хот бы одна фаза находитс под напр жением . Это позвол ет повысить безопасность обслуживани установки.Resistors 2 have a different magnitude and are connected into a star, and the neon lamp / is turned on between the star's bullet point and the neutral wire or ground. With such switching on, the signal device continues to operate when the voltage disappears on any two phase buses or when any two fuses blow, i.e. it works in all cases when at least one phase is under voltage. This makes it possible to increase the safety of the installation service.
Предмет изобретени Subject invention
Устройство дл сигнализации о наличии напр жени в трехфазных электроустановках, содержащее одну неоновую ламну в качестве индикатора и подключенное к контролируемой цепи через три активных сопротивлени , отличающеес тем, что, с целью обеспечени сигнализации при наличии напр жени как на двух и трех, так и на одной фазе цепи , указанные активные сопротивлени выбраны неравными по величине, присоединены к контролируемой цепи и включены в звезду, а неонова лампа включена между нулевой точкой звезды и нулевым проводом цепи или землей.A device for signaling the presence of voltage in three-phase electrical installations, containing one neon lamp as an indicator and connected to a monitored circuit through three active resistances, characterized in that, in order to provide an alarm in the presence of voltage on both two and three, and to one phase of the circuit, the indicated active resistances are chosen unequal in size, connected to the controlled circuit and included in the star, and the neon lamp is connected between the star's zero point and the neutral wire of the circuit or ground.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU604517A SU119226A1 (en) | 1958-07-22 | 1958-07-22 | Device for signaling the presence of voltage in three-phase electrical installations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU604517A SU119226A1 (en) | 1958-07-22 | 1958-07-22 | Device for signaling the presence of voltage in three-phase electrical installations |
Publications (1)
Publication Number | Publication Date |
---|---|
SU119226A1 true SU119226A1 (en) | 1958-11-30 |
Family
ID=48391193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU604517A SU119226A1 (en) | 1958-07-22 | 1958-07-22 | Device for signaling the presence of voltage in three-phase electrical installations |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU119226A1 (en) |
-
1958
- 1958-07-22 SU SU604517A patent/SU119226A1/en active
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