CN205141815U - Haul oneself willingly into device fully suitable for double bus scheme - Google Patents
Haul oneself willingly into device fully suitable for double bus scheme Download PDFInfo
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- CN205141815U CN205141815U CN201520930246.9U CN201520930246U CN205141815U CN 205141815 U CN205141815 U CN 205141815U CN 201520930246 U CN201520930246 U CN 201520930246U CN 205141815 U CN205141815 U CN 205141815U
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Abstract
The utility model provides a haul oneself willingly into device fully suitable for double bus scheme. Should haul oneself willingly into the device fully and include two power supply lines at least, two power supply lines each other are reserve, and power supply line no. 1 is connected with I generating line and II generating line respectively through first circuit breaker at least, and power supply line no. 2 passes through the second circuit breaker at least and is connected with I generating line and II generating line respectively, the device still includes current -voltage return circuit, input circuit and output circuit. The utility model is suitable for a double bus scheme's 110kV transformer substation, through hauling oneself willingly into the stand -by power supply that can put into operation fast fully, reducible transformer substation power off time reduces loss of outage.
Description
Technical field
The utility model relates to transformer station's technical field, particularly relates to a kind of backup auto-activating device being applicable to double bus scheme.
Background technology
In prior art, adopt the 110kV transformer station of double bus scheme generally not design backup auto-activating device, when a wherein working line fault dead electricity, to be put into operation stand-by power supply by operations staff's manual operation, cause interruption duration longer.
Summary of the invention
The technical problems to be solved in the utility model is exactly the shortcoming for prior art, proposes a kind of backup auto-activating device being applicable to double bus scheme.For the 110kV transformer station of double bus scheme, only there are two 110 line powerings and under not allowing the condition of paired running, when a wherein working line fault dead electricity, the utility model can be put into operation stand-by power supply fast by prepared auto restart, transformer station's interruption duration can be reduced, reduce loss of outage.
The backup auto-activating device of double bus scheme of the present utility model, at least comprise Liang Tiao supply line, Liang Tiao supply line is for subsequent use each other, supply line one is at least connected with I bus and II bus respectively by the first circuit breaker, and supply line two is at least connected with I bus and II bus respectively by the second circuit breaker; Be connected by bus between I bus and II bus; The inlet wire side of supply line one and supply line two is respectively arranged with voltage transformer for detecting primary voltage, and supply line one and supply line two are also provided with current transformer for detecting the electric current of Liang Tiao supply line; I bus and II bus are respectively arranged with voltage transformer for detecting the three-phase voltage on bus; This device also comprises current/voltage loop, input circuit and output loop, and wherein current/voltage loop is for introducing current and voltage signals, input circuit for introducing the position contact of each switch, output loop be used for circuit breaker point, close a floodgate.
Preferably, in described current/voltage loop, the voltage access device after crush-cutting is used for having pressure, differentiation with no pressure, the voltage wherein after crush-cutting is detected by the voltage transformer on bus and obtains; Introduce two sections of primary voltages as the assistant criteria hauling oneself willingly into preparation and action, wherein two sections of primary voltages are detected by the voltage transformer of the inlet wire side of supply line one, circuit two and obtain; Each service entrance switch respectively introduces a phase current, is to cause backup auto-activating device malfunction after preventing voltage transformer three-phase from breaking, and wherein this electric current is detected by the current transformer on supply line one, circuit two and obtains.
Preferably, in described input circuit, introduce the position contact of supply line one, circuit two and block switch, differentiate for system operation mode, haul oneself willingly into and prepare and haul oneself willingly into action; Introduce position signalling after the conjunction of supply line one, circuit two and block switch, jump locking as the hand hauled oneself willingly under various ruuning situation.
Preferably, in described output loop, the contact of device output contact You Tiao supply line one, each two pairs of actions simultaneously of circuit two, for tripping first and second circuit breaker; Export the contact closing supply line one, each two pairs of self contained functions of circuit two, for the first and second breaker closings; Export the action connection point of jumping, closing bus, divide for bus, close a floodgate.
The utility model has following beneficial effect: the backup auto-activating device in the utility model can the stand-by power supply that puts into operation in the transformer station of double bus scheme fast and safely, operational mode and dead electricity situation is judged by device, reduce the time that operations staff's manual operation checks, effective minimizing interruption duration, reduces loss of outage.
Accompanying drawing explanation
Fig. 1 is the double bus scheme schematic diagram of transformer station of the present utility model.
Fig. 2 is backup auto-activating device current/voltage circuit wiring diagram of the present utility model.
Fig. 3 is backup auto-activating device input circuit winding diagram of the present utility model.
Fig. 4 is backup auto-activating device output loop winding diagram of the present utility model.
Reference numeral implication is as follows:
1 circuit 1 circuit 23 bus branch road 4II bus PT branch road 5I bus PT branch road 6110kVII bus 7110kVI bus 8 alternating current loop 9 switches rear PT12 circuit two without stream criterion 10 ac voltage circuit 11 circuit one and switches rear PT13 inlet wire one PT14 inlet wire two PT15 input circuit 16 common port 17 charge protection and drop into 18 other TWJ24 mother TWJ25 mother KKJ26 mother HWJ27 lockings of other TWJ21 inlet wires two of inlet wire one TWJ19 inlet wire one KKJ20I bus TWJ22 inlet wire two KKJ23II bus and haul oneself willingly into 28 input optocoupler 29 switching inlet wires 1 and jump into line 1 and close inlet wire 1 and jump into line one for subsequent use 33 and close inlet wire one 34 switching inlet wires 2 35 for subsequent use and jump into line 2 36 and close inlet wire 2 37 and jump into line two for subsequent use 38 and close inlet wires two for subsequent use 39 and jump mothers 40 and close mother 41110kV circuit 1 protection screen 42110kV circuit 2 protection screen
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and it only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
For the 110kV transformer station of double bus scheme, only there are two 110kV line powerings and under not allowing the condition of paired running, the prepared auto restart of double bus scheme of the present utility model comprises following two kinds of fundamental types: (1) is run when a circuit, bus is in closing position, article one, when circuit is for subsequent use, can ensure that extension wire puts into operation in short-term when working line fault dead electricity, reduce the interruption duration of transformer station, reduce loss of outage; (2) when two circuits run, each band one section of bus, bus is in open position, can ensure wherein a line fault dead electricity when, mother puts into operation in short-term, reduces the interruption duration of another bus institute on-load, reduces loss of outage.
Fig. 1 shows transformer station of the present utility model double bus scheme schematic diagram.As shown in Figure 1, backup auto-activating device of the present utility model at least comprises Liang Tiao supply line 1,2, Liang Tiao supply line 1,2 is for subsequent use each other, and supply line 1 is connected with I bus 7 and II bus 6 respectively by circuit breaker 1DL, and supply line 2 is connected with I bus 7 and II bus 6 respectively by circuit breaker 2DL; Be connected by bus 3DL between I bus 7 and II bus 6; The inlet wire side of supply line 1 and supply line 2 is respectively arranged with voltage transformer VT51 and VT61 for detecting primary voltage, and supply line 1 and supply line 2 are also provided with current transformer for detecting the electric current of Liang Tiao supply line; I bus and II bus are respectively arranged with voltage transformer VT71 and VT81 for detecting the three-phase voltage on bus.
Below with reference to Fig. 1, working method of the present utility model is described, the voltage wherein after circuit 1 switching is called voltage 1, and the voltage after circuit 2 switches is called voltage 2.According to above mentioned two kinds of fundamental types, the utility model has following four kinds of modes, wherein, mode one and the corresponding fundamental type of mode two (1), mode three and the corresponding fundamental type of mode four (2):
Mode one: circuit 1 runs, circuit 2 is for subsequent use, and circuit breaker 1DL, bus 3DL are in co-bit, and circuit breaker 2DL is in a point position.Voltage 1, voltage 2 all three-phase have pressure, and the primary voltage instrument transformer VT61 of circuit 2 has pressure, and after charging complete, when voltage 1, voltage 2 are all with no pressure, circuit 2VT61 has pressure, and I1 starts without stream, through time delay, and tripping circuit breaker 1DL.After confirming circuit breaker 1DL tripping, and voltage 1, voltage 2 are all with no pressure, close circuit breaker 2DL through time delay.
Mode two: circuit 2 runs, circuit 1 is for subsequent use, and circuit breaker 2DL, bus 3DL are in co-bit, and circuit breaker 1DL is in a point position.Voltage 1, voltage 2 all three-phase have pressure, and the primary voltage instrument transformer VT51 of circuit 1 has pressure, and after charging complete, when voltage 1, voltage 2 are all with no pressure, circuit 1VT51 has pressure, and I2 starts without stream, through time delay, and tripping circuit breaker 2DL.After confirming circuit breaker 2DL tripping, and voltage 1, voltage 2 are all with no pressure, close circuit breaker 1DL through time delay.
Mode three: circuit 1 and circuit 2 be band one section of bus respectively, circuit breaker 1DL, 2DL are in co-bit, and bus 3DL is in a point position.Voltage 1, voltage 2 all three-phase have pressure, and after charging complete, when voltage 1 is with no pressure, voltage 2 has pressure, and I1 starts without stream, through time delay, and tripping circuit breaker 1DL.After confirming circuit breaker 1DL tripping, and voltage 1 is with no pressure, closes bus 3DL through time delay.
Mode four: circuit 1 and circuit 2 be band one section of bus respectively, circuit breaker 1DL, 2DL are in co-bit, and bus 3DL is in a point position.Voltage 1, voltage 2 all three-phase have pressure, and after charging complete, when voltage 2 is with no pressure, voltage 1 has pressure, and I2 starts without stream, through time delay, and tripping circuit breaker 2DL.After confirming circuit breaker 2DL tripping, and voltage 2 is with no pressure, closes bus 3DL through time delay.Prepared auto restart is not thrown under single female operational mode.
Fig. 2 shows backup auto-activating device current/voltage circuit wiring diagram of the present utility model.Wherein, the voltage U a1 after crush-cutting, Ub1, Uc1, Ua2, Ub2, Uc2 access device are used for having pressure, differentiation with no pressure; Meanwhile, two sections of primary voltages Ux1, Ux2 are introduced as the assistant criteria hauling oneself willingly into preparation and action; Each service entrance switch respectively introduces phase current I1, an I2, is to cause backup auto-activating device malfunction after preventing PT (voltage transformer) three-phase from breaking, and is also to confirm service entrance switch tripping better.
Fig. 3 shows backup auto-activating device input circuit winding diagram of the present utility model.Wherein, device introduces the position contact TWJ of circuit 1, circuit 2 and block switch, differentiates for system operation mode, hauls oneself willingly into and prepares and haul oneself willingly into action; Meanwhile, position signalling (attracting from switching manipulation loop) after introducing the conjunction of circuit 1, circuit 2 and block switch, jumps locking as the hand hauled oneself willingly under various ruuning situation.Also be provided with specially in addition the locking of single maternal formula standby throw hard pressing plate open into.
Fig. 4 shows backup auto-activating device output loop winding diagram of the present utility model.Wherein, device output contact has the contact of each two pairs of actions simultaneously of jumping circuit 1, circuit 2, for tripping circuit breaker 1DL, 2DL.Export the contact of zygonema road 1, each two pairs of self contained functions of circuit 2, close a floodgate for circuit breaker 1DL and 2DL.Export the action connection point of jumping, closing bus, divide for bus 3DL, close a floodgate.
Proposed above-mentioned specific implementation is only exemplary, not as the restriction to the utility model protection range.Those skilled in the art can make corresponding adjustment and change to above-mentioned implementation as the case may be, and these adjustment and change also fall in protection range of the present utility model.
Claims (4)
1. one kind is applicable to the backup auto-activating device of double bus scheme, at least comprise Liang Tiao supply line, Liang Tiao supply line is for subsequent use each other, supply line one is at least connected with I bus and II bus respectively by the first circuit breaker, and supply line two is at least connected with I bus and II bus respectively by the second circuit breaker; Be connected by bus between I bus and II bus; The inlet wire side of supply line one and supply line two is respectively arranged with voltage transformer for detecting primary voltage, and supply line one and supply line two are also provided with current transformer for detecting the electric current of Liang Tiao supply line; I bus and II bus are respectively arranged with voltage transformer for detecting the three-phase voltage on bus; This device also comprises current/voltage loop, input circuit and output loop, and wherein current/voltage loop is for introducing current and voltage signals, input circuit for introducing the position contact of each switch, output loop be used for circuit breaker point, close a floodgate.
2. backup auto-activating device according to claim 1, is characterized in that: in described current/voltage loop, and the voltage access device after crush-cutting is used for having pressure, differentiation with no pressure, and the voltage wherein after crush-cutting is detected by the voltage transformer on bus and obtains; Introduce two sections of primary voltages as the assistant criteria hauling oneself willingly into preparation and action, wherein two sections of primary voltages are detected by the voltage transformer of the inlet wire side of supply line one, circuit two and obtain; Each service entrance switch respectively introduces a phase current, is to cause backup auto-activating device malfunction after preventing voltage transformer three-phase from breaking, and wherein this electric current is detected by the current transformer on supply line one, circuit two and obtains.
3. backup auto-activating device according to claim 1, is characterized in that: in described input circuit, introduces the position contact of supply line one, circuit two and block switch, differentiates for system operation mode, hauls oneself willingly into and prepares and haul oneself willingly into action; Introduce position signalling after the conjunction of supply line one, circuit two and block switch, jump locking as the hand hauled oneself willingly under various ruuning situation.
4. backup auto-activating device according to claim 1, is characterized in that: in described output loop, and the contact of device output contact You Tiao supply line one, each two pairs of actions simultaneously of circuit two, for tripping first and second circuit breaker; Export the contact closing supply line one, each two pairs of self contained functions of circuit two, for the first and second breaker closings; Export the action connection point of jumping, closing bus, divide for bus, close a floodgate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930246.9U CN205141815U (en) | 2015-11-19 | 2015-11-19 | Haul oneself willingly into device fully suitable for double bus scheme |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930246.9U CN205141815U (en) | 2015-11-19 | 2015-11-19 | Haul oneself willingly into device fully suitable for double bus scheme |
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| Publication Number | Publication Date |
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| CN205141815U true CN205141815U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520930246.9U Active CN205141815U (en) | 2015-11-19 | 2015-11-19 | Haul oneself willingly into device fully suitable for double bus scheme |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375611A (en) * | 2015-11-19 | 2016-03-02 | 内蒙古电力勘测设计院有限责任公司 | Automatic bus transfer equipment and method applicable to double-bus connection |
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2015
- 2015-11-19 CN CN201520930246.9U patent/CN205141815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375611A (en) * | 2015-11-19 | 2016-03-02 | 内蒙古电力勘测设计院有限责任公司 | Automatic bus transfer equipment and method applicable to double-bus connection |
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