SU98511A1 - Device for monitoring the health of secondary circuits of three winding voltage transformers - Google Patents
Device for monitoring the health of secondary circuits of three winding voltage transformersInfo
- Publication number
- SU98511A1 SU98511A1 SU387113A SU387113A SU98511A1 SU 98511 A1 SU98511 A1 SU 98511A1 SU 387113 A SU387113 A SU 387113A SU 387113 A SU387113 A SU 387113A SU 98511 A1 SU98511 A1 SU 98511A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- monitoring
- health
- secondary circuits
- voltage transformers
- winding voltage
- Prior art date
Links
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Protection Of Transformers (AREA)
Description
Предметом насто щего изобретени вл етс устройство дл контрол исправности вторичных цепей трансформаторов напр л ени с двум вторичными обмотками, соединенными в звезду и разомкнутый треугольник . Это устройство основано на сравнении напр жений, навод щнхс на обеих вторичных обмотках первичной обмоткой трансформатора напр жени .The object of the present invention is a device for monitoring the operability of secondary circuits of transformers with two secondary windings connected in a star and an open triangle. This device is based on a comparison of the voltages applied to both secondary windings by the primary winding of a voltage transformer.
Известные устройства, примен емые дл контрол вторичных цепей трансформаторов напр жени , несовершенны и имеют недостаточную чувствительность.The known devices used to control the secondary circuits of voltage transformers are imperfect and have insufficient sensitivity.
Описываемое устройство обладает р дом преимуществ ло сравнению с известными аналогичными устройствами, в частности, оно пригодио дл высоковольтных сетей с любым режимом нейтрали, реагирует на повреждение в контролируемой цепи еще до перегорани предохранителей , не реагирует иа нарущеии в первичных цеп х, реагирует на одновременный обрыв вторичных цепей всех трех фаз и на обрыв нулевого провода и обладает повышенной чувствительностью, возрастающей в р де случаев вместе с ростом нагрузки.The described device has a number of advantages compared to known similar devices, in particular, it is suitable for high-voltage networks with any neutral mode, reacts to damage in the controlled circuit even before the fuses blown, does not react and violates the primary circuit, secondary circuits of all three phases and to the breaking of the neutral wire and has a high sensitivity, which increases in a number of cases along with the increase in load.
Это достигаетс применением промежуточного многокатущечного трансформатора, соединение которого с обеими вторичными обмотками трансформатора напр жени выполнено таким образом, чтобы любые повреждени в цеи х обмотки, соединенной в звезду, или в цеп х обмотки , соединенной в разомкнутый треугольник, приводили к срабатыванию реле контрол .Указанна схема соединений обесиечивает бездействие реле контрол при любых повреждени х в высоковольтной сети, к которой присоединен трансформатор напр жени .This is achieved by using an intermediate multi-piece transformer, the connection of which to both secondary windings of a voltage transformer is designed so that any damage in the winding circuit connected to the star, or to the winding circuit connected to an open triangle, triggers the control relay. Described The wiring diagram implies the inactivity of the control relay for any damage to the high-voltage network to which the voltage transformer is connected.
На чертеже показана прииципиальна схема описываемого устройства .The drawing shows the basic scheme of the described device.
Как уже указывалось выше, устройство основано на принципе сравнени напр жений, навод щихс первичной обмоткой / в обеих вторичных обмотках 2 и с трансформатора напр жени , из которых одна соединена в звезду с заземленной нулевой точкой, а друга - в разомкнутый треугольник. Основным элементом устройства вл етс промежуточный трансформатор 4 с шестью катушками. Реле 5 контрол отдель-ных обмоток трансформатора напр жени присоединено к добавочным сопротивлени м 6.As mentioned above, the device is based on the principle of comparison of voltages induced by the primary winding / in both secondary windings 2 and from a voltage transformer, one of which is connected to a star with a grounded zero point, and the other to an open triangle. The main element of the device is an intermediate transformer 4 with six coils. The relay 5 of the control of the individual windings of the voltage transformer is connected to the additional resistances 6.
При таком соединении обмоток промежуточного трансформатора и трансформатора напр жени при нормальном режиме и при любых нарушени х в высоковольтной сети магиитные потоки в обмотках 7 и 5With such a connection, the windings of the intermediate transformer and the voltage transformer during normal operation and for any disturbances in the high-voltage network are magitized currents in windings 7 and 5
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU387113A SU98511A1 (en) | 1949-12-19 | 1949-12-19 | Device for monitoring the health of secondary circuits of three winding voltage transformers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU387113A SU98511A1 (en) | 1949-12-19 | 1949-12-19 | Device for monitoring the health of secondary circuits of three winding voltage transformers |
Publications (1)
Publication Number | Publication Date |
---|---|
SU98511A1 true SU98511A1 (en) | 1953-11-30 |
Family
ID=48372922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU387113A SU98511A1 (en) | 1949-12-19 | 1949-12-19 | Device for monitoring the health of secondary circuits of three winding voltage transformers |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU98511A1 (en) |
-
1949
- 1949-12-19 SU SU387113A patent/SU98511A1/en active
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