SU130573A1 - Electrodynamic measuring device - Google Patents

Electrodynamic measuring device

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Publication number
SU130573A1
SU130573A1 SU640885A SU640885A SU130573A1 SU 130573 A1 SU130573 A1 SU 130573A1 SU 640885 A SU640885 A SU 640885A SU 640885 A SU640885 A SU 640885A SU 130573 A1 SU130573 A1 SU 130573A1
Authority
SU
USSR - Soviet Union
Prior art keywords
measuring device
winding
resistance
electrodynamic
electrodynamic measuring
Prior art date
Application number
SU640885A
Other languages
Russian (ru)
Inventor
В.А. Демьяненко
ненко В.А. Демь
Original Assignee
В.А. Демьяненко
ненко В.А. Демь
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.А. Демьяненко, ненко В.А. Демь filed Critical В.А. Демьяненко
Priority to SU640885A priority Critical patent/SU130573A1/en
Application granted granted Critical
Publication of SU130573A1 publication Critical patent/SU130573A1/en

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Description

Предлагаемый электродинамический измерительный прибор отличаетс  от известных тем, что его неподвижна  токова  катушка снабжена расноложенной коаксиально с ней дополнительной обмоткой, замкнутой на соответственно выбранное посто нное активное сопротивление с малым температурным коэффициентом.The proposed electrodynamic measuring device differs from the known ones in that its fixed current coil is equipped with an additional winding coaxially with it, which is closed to a correspondingly selected constant resistance with a low temperature coefficient.

Такое выполнение прибора позвол ет компенсировать угловую его погрешность при измерени х мощности в цеп х переменного тока.Such an embodiment of the device makes it possible to compensate its angular error when measuring power in alternating current circuits.

На чертеже изображена схема предлагаемого прибора.The drawing shows a diagram of the proposed device.

Прибор имеет обмотку напр жени  /, токовую катушку 2 и дополнительную обмотку 3, располозкенную коаксиально с токовой катушкой. Дополнительна  обмотка 3 замкнута на соответственно подобранное но величине Посто нное активное сопротивление 4 с малым температурным коэффициентом.The device has a voltage winding of /, a current coil 2 and an additional winding 3, which is opened coaxially with the current coil. The additional winding 3 is closed at the appropriately selected but constant Constant resistance 4 with a low temperature coefficient.

Параметры схемы подбираютс  из услови : - -,The circuit parameters are selected from the condition: - -,

где: Л4 -коэффициент взаимной индукции между токовой катушкой 2 и дополнительной обмоткой 3; г,,-суммарное активное сопротивление дополнительной обмотки и сопротивлени  4: L., -коэффициент самоиндукции параллельной цеии ваттметра; г„ - суммариое активное сопротивление обмотки / и добавочного сопротивлени  5.where: L4 is the coefficient of mutual induction between the current coil 2 and the additional winding 3; g ,, is the total active resistance of the additional winding and the resistance 4: L., the coefficient of self-induction of the parallel wattmeter; gn is the sum of the active resistance of the winding / and the additional resistance 5.

Лева  и права  части указанного равенства кратны тангенеу згла отетаваии  потока катушки 2 от тока последовательной цепи и тангенсу угла отставани  тока в обмотке / от приложенного напр жени  и обратно пропорцио 1альны сопротивлени м г„. и , .,, В соответствии с этим можно выбрать множество значений М, /,, г,,., г„. при которых будут отсутствовать температурно-частотные погренЪюсти ваттметра.The left and right parts of this equality are multiples of the tangeneu zgla from the coil 2 flow from the current of the series circuit and the tangent of the current lagging angle in the winding / from the applied voltage and inversely proportional to the resistances r i,. ,, In accordance with this, one can choose a set of values M, / ,, g ,,., g „. under which there will be no temperature-frequency permissibility of the power meter.

Л/Т/L / T /

Предмет изобретени Subject invention

Электродинамический измерительный прибор, отличающийс  тем, что, с целью компенсации угловой погрешности прибора при измерени х мощности в цеп х переменного тока, неподвижна  токова  катущка прибора снабжена расположенной коаксиально с ней дополнительной обмоткой, замкнутой на соответственно выбранное посто нноеактивное сопротивление с малым температурным коэффициентом.Electrodynamic measuring device, characterized in that, in order to compensate for the angular error of the device when measuring power in AC circuits, the fixed current coil of the device is equipped with an additional winding coaxial with it, closed on respectively selected constant resistance with low temperature coefficient.

IПЛЯОгIPPLAIN

J J

0VV0VV

SU640885A 1959-10-12 1959-10-12 Electrodynamic measuring device SU130573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU640885A SU130573A1 (en) 1959-10-12 1959-10-12 Electrodynamic measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU640885A SU130573A1 (en) 1959-10-12 1959-10-12 Electrodynamic measuring device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
SU772540806A Addition SU677970A2 (en) 1977-11-09 1977-11-09 Friction-type absorber of automatic coupling

Publications (1)

Publication Number Publication Date
SU130573A1 true SU130573A1 (en) 1959-11-30

Family

ID=48401689

Family Applications (1)

Application Number Title Priority Date Filing Date
SU640885A SU130573A1 (en) 1959-10-12 1959-10-12 Electrodynamic measuring device

Country Status (1)

Country Link
SU (1) SU130573A1 (en)

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