SU182231A1 - METHOD FOR DETERMINING FREE VYGAGA ^^ "ELECTRIC DRIVE WITH AN ASYNCHRONOUS MOTOR WITH A SHORT-CLOSED ROTOR - Google Patents
METHOD FOR DETERMINING FREE VYGAGA ^^ "ELECTRIC DRIVE WITH AN ASYNCHRONOUS MOTOR WITH A SHORT-CLOSED ROTORInfo
- Publication number
- SU182231A1 SU182231A1 SU883797A SU883797A SU182231A1 SU 182231 A1 SU182231 A1 SU 182231A1 SU 883797 A SU883797 A SU 883797A SU 883797 A SU883797 A SU 883797A SU 182231 A1 SU182231 A1 SU 182231A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- short
- electric drive
- vygaga
- asynchronous motor
- determining free
- Prior art date
Links
- 238000004804 winding Methods 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 2
- 101710028361 MARVELD2 Proteins 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Description
Известные способы определени свободного выбега электропривода с асинхронным двигателем с короткозамкпутым ротором путем измерени Э.Д.С., наводимой в обмотке статора двигател при его отключении от сети остаточным магнетизмом ротора, сложны и не всегда осуществимы, особенно в случа х, когда механизм закрыт, герметизирован или удален от места наблюдени .The known methods for determining the free run-down of an electric drive with an asynchronous motor with a short-clamped rotor by measuring the EFV induced in the stator winding of the engine when it is disconnected from the network by residual magnetism of the rotor are complex and not always feasible, especially in cases where the mechanism is closed, sealed or removed from the site of observation.
Предлагаетс , с целью упрощени способа, величину выбега определ ть по количеству импульсов измер емой э.д.с. Дл этого к статору двигател подключают устройство дл регистрации количества электрических имиульсов , например счетчик имиульсов или шлейфовый осциллограф. При определении свободного выбега используют э.д.с., наводимую в статоре отключенного электродвигател затухающим магнитным потоком и остаточной магнитной индукцией в его роторе.It is proposed, in order to simplify the method, the amount of coasting to be determined by the number of pulses of the measured emf. For this purpose, a device is connected to the motor stator for recording the number of electrical emulsions, for example, an imiulse counter or a loop oscilloscope. In determining free coasting, emf is used, induced in the stator of a disconnected electric motor by damped magnetic flux and residual magnetic induction in its rotor.
При каждом обороте двигател на зажимах обмотки статора навод тс электрические импульсы переменной пол рности, число которых равно числу полюсов обмотки статора, поэтому дл определени свободного выбега достаточно подключить к выводам статорнойAt each motor revolution, electric pulses of variable polarity are induced at the terminals of the stator winding, the number of which is equal to the number of poles of the stator winding, therefore, to determine the free coasting, it is enough to connect to the stator terminals
обмотки устройство, регистрирующее количество электрических импульсов, например счетчик импульсов или щлейфовый осциллограф.winding device that records the number of electrical pulses, such as a pulse counter or oscilloscope.
Дл подключени регистрирующего устройства после отключени двигател от сети может быть использован нормально замкнутый блок-контакт контактора или какой-либо другой вид электрической блокировки.After the engine is disconnected from the mains, a normally closed contactor contact block or some other type of electrical interlock can be used to connect the recorder.
Стабилизаци величины импульсов, подаваемых на регистрирующее устройство, может быть легко произведена известными стабилизаторами .The stabilization of the magnitude of the pulses supplied to the recording device can easily be produced by known stabilizers.
Предмет изобретени Subject invention
Способ определени свободного выбега электропривода с асинхронным двигателем с короткозамкнутым ротором путем измерени э.д.с., наводимой в обмотке статора двигател при его отключении от сети остаточным магнетизмом ротора, отличающийс тем, что, с целью его упрощени , величину выбега определ ют но количеству имиульсов измер емой э.д.с., дл чего к статору двигател подключают устройство, регистрирующее количество элеш-рических импульсов, например счетчик импульсов или шлейфовый осциллограф.The method of determining the free run-down of an electric drive with an asynchronous motor with a short-circuited rotor by measuring the emf induced in the stator winding of the engine when it is disconnected from the network by residual magnetism of the rotor, in order to simplify it, the amount of coasting is determined by the number emulses of measured emf. For this purpose, a device that records the number of elec- tric pulses, such as a pulse counter or a loop oscilloscope, is connected to the motor stator.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU182231A1 true SU182231A1 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942111A (en) * | 1974-11-18 | 1976-03-02 | Whirlpool Corporation | Method and apparatus for testing electric motors |
| US3967199A (en) * | 1974-11-18 | 1976-06-29 | Whirlpool Corporation | Method and apparatus for testing electric motors |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942111A (en) * | 1974-11-18 | 1976-03-02 | Whirlpool Corporation | Method and apparatus for testing electric motors |
| US3967199A (en) * | 1974-11-18 | 1976-06-29 | Whirlpool Corporation | Method and apparatus for testing electric motors |
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