UA109095C2 - Device for automatic determination of emergency feeder - Google Patents
Device for automatic determination of emergency feederInfo
- Publication number
- UA109095C2 UA109095C2 UAA201409788A UAA201409788A UA109095C2 UA 109095 C2 UA109095 C2 UA 109095C2 UA A201409788 A UAA201409788 A UA A201409788A UA A201409788 A UAA201409788 A UA A201409788A UA 109095 C2 UA109095 C2 UA 109095C2
- Authority
- UA
- Ukraine
- Prior art keywords
- voltage
- transformer
- output
- phase
- input
- Prior art date
Links
- 238000004804 winding Methods 0.000 abstract 5
- 238000002955 isolation Methods 0.000 abstract 2
- 230000007935 neutral effect Effects 0.000 abstract 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A device for automatically determining the emergency feeder refers to the measuring technique and can be used to identify the feeder with single-phase ground fault in electrical networks with isolated neutral. The device comprises a power transformer, a ground loop, the system of three-phase busbars, distribution three-phase feeders, measuring voltage transformer with windings connected in a "star with a zero-star with a zero-open delta", auxiliary transformer, the power transformer is connected to a three-phase system busbar, to which there are attached distribution three-phase feeders, galvanic isolation is included, microcontroller, GSM / GPRS-modem, controller high-voltage switchgear, high voltage switchboard, special terminal of zero point of high-voltage own needs auxiliary transformer winding, the input of galvanic iculation is connected to the secondary winding of the measuring voltage transformer, output of galvanic isolation is connected to the microcontroller input, the first microcontroller output is connected to the GSM / GPRS-modem, and the second microcontroller output is connected to the input of the control unit the high-voltage switching device, the output of which is connected to drive the high-voltage switching device, the output of high-voltage switchgear apparatus is connected to the earthing system, the input of high voltage switching device is connected to a special terminal of zero point of high-voltage auxiliary transformer winding. The technical result is the elimination of power supply mode failure in networks with insulated neutral and reducing time and labor costs for the identification of damaged line due to short-term artificial connections of zero point of the winding of high voltage transformer of own needs with the grounding circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA201409788A UA109095C2 (en) | 2014-09-05 | 2014-09-05 | Device for automatic determination of emergency feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA201409788A UA109095C2 (en) | 2014-09-05 | 2014-09-05 | Device for automatic determination of emergency feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA109095C2 true UA109095C2 (en) | 2015-07-10 |
Family
ID=53717523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UAA201409788A UA109095C2 (en) | 2014-09-05 | 2014-09-05 | Device for automatic determination of emergency feeder |
Country Status (1)
| Country | Link |
|---|---|
| UA (1) | UA109095C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405311A (en) * | 2016-12-08 | 2017-02-15 | 国家电网公司 | Remote electric leakage fault alarming device for transformer substation |
-
2014
- 2014-09-05 UA UAA201409788A patent/UA109095C2/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405311A (en) * | 2016-12-08 | 2017-02-15 | 国家电网公司 | Remote electric leakage fault alarming device for transformer substation |
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