SU40461A1 - Device for measuring the voltage at the terminals of the secondary windings of transformers - Google Patents

Device for measuring the voltage at the terminals of the secondary windings of transformers

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Publication number
SU40461A1
SU40461A1 SU113791A SU113791A SU40461A1 SU 40461 A1 SU40461 A1 SU 40461A1 SU 113791 A SU113791 A SU 113791A SU 113791 A SU113791 A SU 113791A SU 40461 A1 SU40461 A1 SU 40461A1
Authority
SU
USSR - Soviet Union
Prior art keywords
voltage
measuring
terminals
transformers
secondary windings
Prior art date
Application number
SU113791A
Other languages
Russian (ru)
Inventor
В.В. Ясинский
Original Assignee
В.В. Ясинский
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 В.В. Ясинский filed Critical В.В. Ясинский
Priority to SU113791A priority Critical patent/SU40461A1/en
Application granted granted Critical
Publication of SU40461A1 publication Critical patent/SU40461A1/en

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Description

Предлагаемое изобретение относитс  к устройствам дл  измерени  напр жени  на вторичных обмотках повыситс ьных трансформаторов, в которых проградуированный на напр жение вторичной цепи вольтметр включаетс  в первичную цепь, имеющую более низкое напр жение. Однако, обычно такой метод измерени  дает ошибку на величину приведенного к первичному напр жению падению напр жени  на зажимах вторичной обмотки в зависимости от нагрузки , причем с большей степенью точности можно считать, что указанное падение напр жени  пропорционально силе первичного тока.The present invention relates to devices for measuring the voltage on secondary windings of boost transformers, in which a voltmeter calibrated to the voltage of the secondary circuit is included in the primary circuit having a lower voltage. However, usually this method of measurement gives an error of the magnitude of the voltage reduced to the primary voltage at the terminals of the secondary winding depending on the load, and with a greater degree of accuracy it can be assumed that this voltage drop is proportional to the primary current strength.

Таким образом, измерительный прибор , включенный в цепь первичного напр жени , будет давать показани  большие , нежели действительное приведенное вторичное напр жение.Thus, a meter connected to a primary voltage circuit will give readings larger than the actual reduced secondary voltage.

С целью устранени  ошибки отсчета в предлагаемом устройстве, электрическа  схема которого изображена на фиг. 1, а -на фиг. 2-способ включени  в первичную цепь трансформатора измерительного вольтметра, последний снабжаетс  двум  включенными диференциально обмотками.In order to eliminate the reference error in the proposed device, the electrical circuit of which is shown in FIG. 1, a to FIG. 2 is a method for including a measuring voltmeter in the primary circuit of the transformer, the latter being supplied with two differential windings included.

Основна  катушка И (фиг. 2) вольтметра включаетс , как обычно, паралл .ельно первичной обмотке (фиг. 2)The main coil AND (FIG. 2) of the voltmeter is connected, as usual, in parallel with the primary winding (FIG. 2)

трансформатора. Дл  включени  вспомогательной обмотки W, ослабл юш.ёй в соответственной степени действие основной катушки , в первичной цепи трансформатора предусмотрено регулируемое добавочное сопротивление R (фиг. 1 и 2), играющее дл  обмотки И роль шунта.transformer. To turn on the auxiliary winding W, the action of the main coil was weakened, respectively, in the primary circuit of the transformer there is an adjustable additional resistance R (Fig. 1 and 2), which plays the role of a shunt for winding.

Указанна  добавочна  обмотка располагаетс  на основной катушке вольтметра или же дл  этой цели может быть использована часть самой основной катушки .This additional winding is located on the main coil of the voltmeter, or a portion of the main coil itself can be used for this purpose.

Обмотка W создает магнитный поток , пропорциональный первичному току и направленный согласно диференциальному включению обмоток навстречу потоку основной катушки. Этим достигаетс  соответствующее учету падени  напр жени  на зажимах вторичной обмотки при нагрузке ее уменьшение отклонени  стрелки измерительного вольтметра .Winding W creates a magnetic flux proportional to the primary current and directed according to the differential switching of the windings against the flow of the main coil. This is achieved by taking into account the voltage drop at the terminals of the secondary winding under load, its reduction in the deflection of the arrow of the measuring voltmeter.

Предмет изобретени .The subject matter of the invention.

Устройство дл  измерени  напр же; ни  на вторичных обмотках трансформаторов с применением вольтметра, включенного в первичную цепь и пpoгpaдyиJ рованного на напр жение вторичной цепи, отличающеес  тем, что с цельюDevice for measuring stress; nor on the secondary windings of transformers using a voltmeter connected to the primary circuit and routed to the voltage of the secondary circuit, characterized in that

устранени  ошибки отсчета, вследствие учета падени  напр жени  на зажимах вторичной обмотки при нагрузке ее, вольтметр снабжен вспомогательной обмоткой W, ослабл ющей действие основной катушки W и включенной в ответвление питающей первичную обмотку цепи помощью щунта /.elimination of the counting error, due to the voltage drop on the secondary terminals when it is loaded, the voltmeter is equipped with an auxiliary winding W, which weakens the action of the main coil W and is connected to the power supply circuit of the primary winding /.

SU113791A 1932-08-07 1932-08-07 Device for measuring the voltage at the terminals of the secondary windings of transformers SU40461A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU113791A SU40461A1 (en) 1932-08-07 1932-08-07 Device for measuring the voltage at the terminals of the secondary windings of transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU113791A SU40461A1 (en) 1932-08-07 1932-08-07 Device for measuring the voltage at the terminals of the secondary windings of transformers

Publications (1)

Publication Number Publication Date
SU40461A1 true SU40461A1 (en) 1934-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU113791A SU40461A1 (en) 1932-08-07 1932-08-07 Device for measuring the voltage at the terminals of the secondary windings of transformers

Country Status (1)

Country Link
SU (1) SU40461A1 (en)

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