CN211456227U - 220kV open-type distribution device based on 3/2 circuit breaker wiring - Google Patents
220kV open-type distribution device based on 3/2 circuit breaker wiring Download PDFInfo
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- CN211456227U CN211456227U CN201922086689.5U CN201922086689U CN211456227U CN 211456227 U CN211456227 U CN 211456227U CN 201922086689 U CN201922086689 U CN 201922086689U CN 211456227 U CN211456227 U CN 211456227U
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- 239000004020 conductor Substances 0.000 claims description 29
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- 239000012212 insulator Substances 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 7
- 239000002356 single layer Substances 0.000 claims description 3
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Abstract
The utility model provides a 220kV open-type distribution device based on 3/2 circuit breaker wiring, includes that the I female and I mother of 220kV who sets up respectively on five not co-altitude platforms inclines out line equipment district, the I female side in-string equipment district of 220kV, the middle equipment district in the 220kV cluster, the II female side in-string equipment district of 220kV, the II female and II mother of 220kV incline out line equipment districts, sets up the transition district between adjacent platform, and the circuit is connected between adjacent platform. The utility model discloses a flat slope formula arrangement scheme is compared, has reduced a large amount of squarings in the engineering place, and distribution device place adaptability is good, has reduced engineering cost and construction cycle.
Description
Technical Field
The invention belongs to the technical field of power distribution devices, and particularly relates to a 220kV open-type power distribution device based on 3/2 circuit breaker wiring.
Background
In a high-voltage transmission power system, especially a 220kV junction substation in a system center, 3/2 circuit breakers are sometimes adopted for wiring, and an open type power distribution device is generally selected in consideration of engineering investment. The large-scale 220kV open-type transformer substation occupies large ground, and is difficult to select a station site with proper conditions in mountainous areas.
Disclosure of Invention
To the technical problem who exists, provide a 220kV open-type distribution device based on 3/2 circuit breaker wiring, through the arrangement of many ladders adapt to the mountain land topography, reduce engineering earth and stone square volume, reduce the engineering construction degree of difficulty.
The purpose of the invention is realized by the following technical scheme:
a220 kV open-type power distribution device based on 3/2 breaker wiring comprises a 220kV I bus and I bus side outgoing line equipment area, a 220kV I bus side in-series equipment area, a 220kV I string intermediate equipment area, a 220kV II bus side in-series equipment area, a 220kV II bus and II bus side outgoing line equipment area which are respectively arranged on five platforms with different heights, wherein the 220kV I bus and I bus side outgoing line equipment area is positioned on a platform V, the 220kV I bus side in-series equipment area is positioned on a platform IV, the 220kV II string intermediate equipment area is positioned on a platform III, the 220kV II bus side in-series equipment area is positioned on a platform II, the 220kV II bus and II bus side outgoing line equipment areas are positioned on the platform I, a transition area is arranged between adjacent platforms, a circuit is communicated between the platform IV and the platform IV through a transition pipe bus of the transition area, the platform IV and the platform III are communicated through a cross-line II of the transition area, and the platform III is communicated through a cross-line I of the transition area, the platform II and the platform I are communicated through a flexible conductor of a transition area, and the height difference between adjacent platforms is not more than 12 m.
Preferably, a transition region between the platform V and the platform IV is a transition slope, a transition pipe bus is arranged along the transition slope, one end of the transition pipe bus is connected with an ungrounded disconnecting switch III on the platform IV, and the other end of the transition pipe bus is connected with a 220kV I bus on the platform V, so that the circuit between the platform V and the platform IV is communicated; a cross line II of a transition area between the platform IV and the platform III is connected between a serial frame on the platform III and a bus side outgoing line frame I on the platform V, and a right grounding isolating switch on the platform III and a non-grounding isolating switch III on the platform IV are both connected to the cross line II between the bus side outgoing line frame I and the serial frame I in an upward lead mode, so that the circuit between the platform III and the platform IV is communicated; between the series framework of the transition area between the platform III and the platform II and the female side outgoing framework of the platform I, the non-grounding isolating switch II on the platform II and the left grounding isolating switch on the platform III are both connected with the lead of the cross wire I between the female side outgoing framework of the platform II and the series framework upwards
The communication of the circuit between the platform II and the platform III is realized; set up third built on stilts flexible line in the transition district between platform I and platform II, be not less than 8.5m department on II female side play line frameworks of platform I and set up the hanging wire point, be not less than 4.5m department on platform II is close to the ungrounded isolator I's of platform I side support and set up the hanging wire point, these two hanging wire points are connected through third built on stilts flexible line, 220kV II female upward lead wire with flexible line connects, realizes the intercommunication of circuit between platform I and the platform II.
Preferably, the 220kV I bus and I bus side outgoing line equipment area is positioned on a platform V and comprises 220kV
I bus, I bus side outgoing line framework of 220kV, I bus side outgoing line arrester I of 220kV, I bus side outgoing line voltage mutual-inductor I of 220kV, I bus side outgoing line wave trapper I of 220kV adopts the insulator chain that dangles to hang and installs on I bus side outgoing line framework, I bus side outgoing line wave trapper I one end of I bus side outgoing line voltage mutual-inductor of 220kV connects I bus side outgoing line wave trapper I of 220kV, and I bus side outgoing line arrester I of 220kV is connected to the other end, and I bus side outgoing line arrester I of 220kV passes through I bus of line connection 220 kV.
Preferably, the 220kV I bus side in-string equipment area is located on a platform IV and comprises a circuit breaker III, a current transformer III, an ungrounded disconnecting switch III and an ungrounded disconnecting switch IV, one end of the circuit breaker III is connected with one end of the current transformer III, the other end of the circuit breaker III is connected with one end of the ungrounded disconnecting switch IV, the 220kV I bus is connected through the ungrounded disconnecting switch IV, the other end of the current transformer III is connected with the ungrounded disconnecting switch III, and the other end of the current transformer III is connected with a jumper II through the ungrounded disconnecting switch III.
Preferably, 220kV cluster intermediate facilities district is located platform III, including circuit breaker II, current transformer II, right ground connection isolator, left ground connection isolator and cluster framework, current transformer II is connected to circuit breaker II, connects left ground connection isolator through circuit breaker II, connects overline I through left ground connection isolator, connects right ground connection isolator through current transformer II, connects overline II through right ground connection isolator.
Preferably, II female side in-string equipment areas of 220kV are located platform II, including circuit breaker I, current transformer I, ungrounded isolator I and ungrounded isolator II, I connection current transformer I of circuit breaker connects ungrounded isolator I through I connection of circuit breaker, and II female of 220kV are connected to I connection ungrounded isolator of ungrounded isolator, connect ungrounded isolator II through I connection current transformer, and II connection overlines I of ungrounded isolator.
Preferably, the 220kV II bus and II bus side outgoing line equipment area is located on the platform I and comprises a 220kV II bus, a 220kV II bus side outgoing line framework, a 220kV II bus side outgoing line lightning arrester, a 220kV II bus side outgoing line voltage transformer and a 220kV II bus side outgoing line wave trap, wherein the 220kV II bus side outgoing line wave trap is installed on the II bus side outgoing line framework in a suspension mode through a suspension insulator string.
Preferably, the 220kV I bus is of a double-layer structure, the upper layer is a first overhead flexible conductor with the distance of not less than 7.5m from the platform V, and the lower layer is a tubular bus 11a with the distance of not less than 2.5m from the first overhead flexible conductor with the upper layer and the distance of not less than 5m from the platform V.
Preferably, the 220kV II bus is of a single-layer structure and is a second overhead flexible conductor with the distance from the platform I being not less than 5 m.
Preferably, the 220kV I bus or the 220kV II bus is a suspended soft bus.
The invention has the beneficial effects that:
the utility model discloses a arrange 5 equipment districts respectively on the platform of 5 co-altitude, through the connecting wire of different forms between each platform, make whole circuit link up, realize the complete function of double bus-bar connection, the earth and stone side engineering volume of a large amount of reduction construction open-type transformer substation on the mountain region.
Drawings
Fig. 1 is an electrical main wiring diagram of an embodiment of the present invention.
Fig. 2 is an electrical floor plan of an embodiment of the present invention.
Fig. 3 is an electrical cross-sectional view of an embodiment of the invention.
Fig. 4 is a 220kV i bus cross-section diagram of the embodiment of the present invention.
Fig. 5 is a sectional view of a 220kV ii bus according to an embodiment of the present invention.
In the figure: 1. the transformer comprises a platform I, a platform II, a platform III, a circuit breaker II, a current transformer II, a right grounding isolating switch 4, a left grounding isolating switch 5, a lightning arrester I, a lightning arrester 62, a lightning arrester II, a voltage transformer I, a voltage transformer 72, a voltage transformer II, a wave trapper I, a wave trapper II, a pillar insulator 9, a first overhead flexible conductor 10a, a second overhead flexible conductor 10b, a third overhead flexible conductor 10c, a crossover I, a crossover II, a transition tube bus 11, a tube bus 11a, a strain insulator string 12, a suspension insulator string 13, a bus 141I, a bus outlet frame 142 II, a bus outlet frame 143, a platform IV, a circuit breaker 15, a platform IV, a current transformer 151 and a circuit breaker III, 152. and current transformers III, 153, ungrounded disconnecting switches III, 154, ungrounded disconnecting switches IV, 16 and a platform V.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b): as shown in figures 1-3, the invention relates to a 220kV open-type power distribution device based on 3/2 breaker wiring, which comprises a 220kV I bus and I bus side outgoing line equipment area, a 220kV I bus side in-series equipment area, a 220kV middle in-series equipment area, a 220kV II bus side in-series equipment area, a 220kV II bus and II bus side outgoing line equipment area which are respectively arranged on five platforms with different heights, wherein the 220kV I bus and I bus side outgoing line equipment area is positioned on a platform V16, the 220kV I bus side in-series equipment area is positioned on a platform IV 15, the 220kV II bus side in-series equipment area is positioned on a platform III 3, the 220kV II bus side in-series equipment area is positioned on a platform II 2, the 220kV II bus and II bus side outgoing line equipment areas are positioned on a platform I1, a transition area is arranged between adjacent platforms, the platforms V16 and IV 15 are communicated with each other through a transition pipe 11 of the transition area, the III-II bus 10e of the transition area is communicated with the platform IV 3, the platform III 3 is communicated with the platform II 2 through a cross wire I10 d in a transition area, and the platform II 2 is communicated with the platform I1 through a flexible conductor 10c in the transition area; the height difference between adjacent platforms is not more than 12 m.
As shown in fig. 2 and 3, a transition region between the platform v 16 and the platform iv 15 is a transition slope, a transition pipe bus 11 is arranged along the transition slope, one end of the transition pipe bus 11 is connected with an ungrounded disconnecting switch iii 153 on the platform iv 15, the other end of the transition pipe bus 11 is connected with a 220kV i bus on the platform v 16, and the 220kV i bus is supported by a post insulator 9, so that the circuit between the platform v 16 and the platform iv 15 is communicated; a cross line II 10e of a transition region between the platform IV 15 and the platform III 3 is connected between a middle string framework 143 on the platform III 3 and a bus I side outgoing line framework 141 on the platform V16, and a right grounding isolating switch 4 on the platform III 3 and a non-grounding isolating switch III 153 on the platform IV 15 are connected to the cross line II 10e between the bus I side outgoing line framework 141 and the middle string framework 143 through upward lead wires, so that the circuit between the platform III 3 and the platform IV 15 is communicated; a cross line I10 d of a transition area between the platform III 3 and the platform II 2 is connected between a string framework 143 on the platform III 3 and a bus II side outgoing line framework 142 on the platform I1, and an ungrounded disconnecting switch II 24 on the platform II 2 and a left grounded disconnecting switch 5 on the platform III 3 are both connected to the cross line I10 d between the bus II side outgoing line framework 142 and the string framework 143 in an upward lead mode, so that the circuit between the platform II 2 and the platform III 3 is communicated; a flexible lead 10c is arranged in a transition area between a platform I1 and a platform II 2, a wire hanging point is arranged at a position no lower than 8.5m (12.3 m in the example) on a wire outlet framework 142 at the side of a bus II of the platform I1, a wire hanging point is arranged at a position no lower than 4.5m (5.3 m in the example) on a bracket of an ungrounded disconnecting switch I23 at the side, close to the platform I1, of the platform II 2, the two wire hanging points are connected through the flexible lead 10c, and a 220kV bus II upward lead is connected with the flexible lead 10c, so that the circuit between the platform I1 and the platform II 2 is communicated.
As shown in fig. 4, the 220kV i bus and i bus side outgoing line equipment area is located on a platform v 16, the height of the outgoing line equipment area higher than a platform i 1 is 28m, the outgoing line equipment area comprises a 220kV i bus, a 220kV i bus side outgoing line framework 141, a 220kV i bus side outgoing line arrester 61, a 220kV i bus side outgoing line voltage transformer 71, and a 220kV i bus side outgoing line wave blocker 81, the 220kV i bus is a first overhead flexible conductor 10a, the 220kV i bus side outgoing line wave blocker i 81 is suspended and installed on the i bus side outgoing line framework 141 by adopting a suspension insulator string 13, and the 220kV i bus side outgoing line wave blocker i 81 is suspended and installed on the i bus side outgoing line framework 141 by
One end of a bus side outlet voltage transformer I71 is connected with a 220kV I bus side outlet wave trapper I81, the other end of the bus side outlet voltage transformer I is connected with a 220kV I bus side outlet lightning arrester I61, and the 220kV I bus side outlet lightning arrester I61 is connected with a 220kV I bus through a line.
As shown in fig. 1-3, the 220kV i bus side in-series equipment area is located on a platform iv 15, is 23m higher than the platform i 1, and includes a circuit breaker iii 151, a current transformer iii 152, an ungrounded disconnector iii 153 and an ungrounded disconnector iv 154, where one end of the circuit breaker iii 151 is connected to one end of the current transformer iii 152, the other end is connected to one end of the ungrounded disconnector iv 154, the other end of the current transformer iii 152 is connected to the 220kV i bus through the ungrounded disconnector iv 154, the other end of the current transformer iii 152 is connected to the ungrounded disconnector iii 153, and the other end is connected to a jumper 10e through the ungrounded disconnector iii 153.
220kV cluster intermediate equipment district is located platform III 3, and the height that exceeds platform I1 is 16m, including circuit breaker II 31, current transformer II 32, right ground isolation switch 4, left ground isolation switch 5 and cluster framework 143, circuit breaker II 31 connects current transformer II 32, connects left ground isolation switch 5 through circuit breaker II 31, connects overline I10 d through left ground isolation switch 5, connects right ground isolation switch 4 through current transformer II 32, connects overline II 10e through right ground isolation switch 4.
II female side in-string equipment areas of 220kV are located platform II 2, and the height that exceeds platform I1 is 9m, including circuit breaker I21, current transformer I22, I23 and II 24 of isolator ungrounded, I21 connection current transformer I22 of circuit breaker connects I23 of isolator ungrounded through I connection circuit breaker, and II female of 220kV are connected to I23 of isolator ungrounded, connect II 24 of isolator ungrounded through I22 of current transformer, and II 24 of isolator ungrounded connect overline I10 d.
The 220kV II bus and II bus side outgoing line equipment area is located on the platform I1 and comprises a 220kV II bus, a 220kV 220k V II bus side outgoing line framework 142, a 220kV II bus side outgoing line arrester 62, a 220kV II bus side outgoing line voltage transformer 72 and a 220kV II bus side outgoing line wave damper 82, wherein the 220kV II bus side outgoing line wave damper 82 is installed on the II bus side outgoing line framework 142 in a hanging mode through a suspension insulator string 13.
The 220kV I bus is of a double-layer structure, the upper layer is a first overhead flexible conductor 10a which is not less than 7.5m high from the platform V, the lower layer is a tubular bus 11a which is not less than 2.5m away from the first overhead flexible conductor 10a on the upper layer and is not less than 5m high from the platform V.
The upper layer of the flexible overhead conductor is a first flexible overhead conductor 10a with the height of 10m from the platform V16, the interval width is set to be 14.5m, and the flexible overhead conductors between intervals are connected in an upper jumper mode. The upper jumper is fixed by a post insulator arranged on a 10m high framework to ensure the live distance between the jumper and the framework. The lower layer is a tubular bus 11a 5.8m high from the platform V16, and is supported by a post insulator 9 arranged on a support with the height of 3.3m, the tubular bus 11a is connected with a 220kVI bus (a first overhead flexible conductor 10a) through a flexible conductor lead-up, and the current path of the first overhead flexible conductor 10a with the height of 220kVI bus 10m extends to the tubular bus 11a with the height of 5.8 m. The pipe bus 11a is connected with the non-grounded disconnecting switch IV 154 on the platform IV 15 through the transition pipe bus 11, and the current path from the 220kVI bus to the device in the 3/2 breaker wiring string is realized.
The 220kV II bus is of a single-layer structure and is a second overhead flexible conductor 10b (6 m is selected in the embodiment) which is not less than 5m high from the platform I1, the interval width is set to be 14.5m, and the second overhead flexible conductors 10b between the intervals are connected in an upper jumper mode. The upper jumper is fixed by a post insulator arranged on a 6m high framework to ensure the live distance between the jumper and the framework. And a second overhead flexible conductor 10b with the height of 6m is connected with a third overhead flexible conductor 10c between the platform I1 and the platform II 2 through a flexible conductor lead-up, so that a current path from a 220kV II bus to equipment in a 3/2 circuit breaker wiring string is realized.
For the 220kVI bus and II bus type, in the area with low earthquake intensity, the supporting tubular bus can be used.
The height difference between the platforms and the height of the stringing are erected according to the actual height of the slope.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a 220kV open-type distribution device based on 3/2 circuit breaker wiring which characterized in that: the device comprises a 220kV I mother and I mother side outgoing line device area, a 220kV I mother side in-string device area, a 220kV I middle in-string device area, a 220kV II mother side in-string device area, a 220kV II mother and II mother side outgoing line device area which are respectively arranged on five platforms with different heights, wherein the 220kV I mother and I mother side outgoing line device area is positioned on a platform V, the 220kV I mother side in-string device area is positioned on a platform IV, the 220kV II middle in-string device area is positioned on a platform III, the 220kV II mother side in-string device area is positioned on a platform II, the 220kV II mother and II mother side outgoing line device areas are positioned on the platform I, a transition area is arranged between adjacent platforms, a circuit is communicated between the platform V and the platform IV through a transition pipe bus (11) of the transition area, the circuit is communicated between the platform IV and the platform III through a crossover II (10e) of the transition area, and the circuit I is communicated between the platform IV and the platform II through a crossover line (10d) of the transition area, the platform II and the platform I are communicated through a flexible conductor (10c) in a transition area, and the height difference between adjacent platforms is not more than 12 m.
2. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: a transition region between the platform V and the platform IV is a transition slope, a transition pipe bus (11) is arranged along the transition slope, one end of the transition pipe bus (11) is connected with an ungrounded disconnecting switch III (153) on the platform IV, and the other end of the transition pipe bus is connected with a 220kV I bus on the platform V, so that the circuit between the platform V and the platform IV is communicated; a cross line II (10e) of a transition region between the platform IV and the platform III is connected between a string-in framework (143) on the platform III and a bus-I side outgoing line framework (141) on the platform V, and a right grounding isolating switch (4) on the platform III and an ungrounded isolating switch III (153) on the platform IV are both connected to the cross line II (10e) between the bus-I side outgoing line framework (141) and the string-in framework (143) in an upward lead mode, so that the circuit between the platform III and the platform IV is communicated; a cross line I (10d) of a transition area between the platform III and the platform II is connected between a string framework (143) on the platform III and a bus-II side outgoing line framework (142) on the platform I, and an ungrounded disconnecting switch II (24) on the platform II and a left grounded disconnecting switch (5) on the platform III are both connected to the cross line I (10d) between the bus-II side outgoing line framework (142) and the string framework (143) in an upward lead mode, so that the circuit between the platform II and the platform III is communicated; set up third overhead flexible conductor (10c) in the transition region between platform I and platform II, be not less than 8.5m department on II female side play line frameworks (142) of platform I and set up the hanging wire point, be not less than 4.5m department on the support of platform II near I side of platform ungrounded isolator I (23) and set up the hanging wire point, these two hanging wire points are connected through third overhead flexible conductor (10c), 220kV II female upward lead wire with flexible conductor (10c) are connected, realize the intercommunication of circuit between platform I and the platform II.
3. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: i mother of 220kV and I mother of side outgoing lines equipment district is located platform V, including I mother of 220kV, I mother of 220kV side outgoing lines framework (141), I mother of 220kV side outgoing lines arrester I (61), I mother of 220kV side outgoing lines line voltage transformer I (71), I mother of 220kV side outgoing lines wave trapper I (81) adopt pendant insulator chain (13) to hang and install on I mother of side outgoing lines framework (141), I mother of 220kV side outgoing lines voltage transformer I (71) one end connection 220kV I mother of bus outgoing lines wave trapper I (81), the other end connection 220kV I mother of side outgoing lines arrester I (61), I mother of 220kV side outgoing lines arrester I (61) of 220kV pass through the I mother of line connection 220 kV.
4. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: i female side of 220kV is equipped with the district in the cluster and is located platform IV, including circuit breaker III (151), current transformer III (152), ungrounded isolator III (153) and ungrounded isolator IV (154), the one end of current transformer III (152) is connected to circuit breaker III (151) one end, and ungrounded isolator IV (154) one end is connected to the other end, connects 220k V I female through ungrounded isolator IV (154), and ungrounded isolator III (153) is connected to the other end of current transformer III (152), connects overline II (10e) through ungrounded isolator III (153).
5. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: 220kV cluster intermediate equipment district is located platform III, including circuit breaker II (31), current transformer II (32), right ground connection isolator (4), left ground connection isolator (5) and cluster framework (143), current transformer II (32) is connected in circuit breaker II (31), connects left ground connection isolator (5) through circuit breaker II (31), connects overline I (10d) through left ground connection isolator (5), connects right ground connection isolator (4) through current transformer II (32), connects overline II (10e) through right ground connection isolator (4).
6. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: II female side in-string equipment areas of 220kV are located platform II, including circuit breaker I (21), current transformer I (22), ungrounded isolator I (23) and ungrounded isolator II (24), I (21) connection current transformer I (22) of circuit breaker connect ungrounded isolator I (23) through I connection circuit breaker, and II mothers of 220kV are connected in ungrounded isolator I (23), connect ungrounded isolator II (24) through I (22) current transformer, and I (10d) are striden in ungrounded isolator II (24) connection.
7. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: the 220kV II bus and II bus side outgoing line equipment area is located on the platform I and comprises a 220kV II bus, a 220kV II bus side outgoing line framework (142), a 220kV II bus side outgoing line lightning arrester (62), a 220kV II bus side outgoing line voltage transformer (72) and a 220kV II bus side outgoing line wave trap (82), wherein the 220kV II bus side outgoing line wave trap (82) is installed on the II bus side outgoing line framework (142) in a suspension mode through a suspension insulator string (13).
8. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: the 220kV I bus is of a double-layer structure, the upper layer is a first overhead flexible conductor (10a) which is not less than 7.5m high from the platform V, the lower layer is a tube bus (11a) which is not less than 2.5m away from the first overhead flexible conductor (10a) on the upper layer and is not less than 5m high from the platform V.
9. An 3/2 breaker-wiring based 220kV open power distribution unit according to claim 1, wherein: the 220kV II bus is of a single-layer structure and is a second overhead flexible conductor (10b) which is not less than 5m high from the platform I.
10. An 3/2 breaker-wiring based 220kV open power distribution unit according to any one of claims 1-5, wherein: the 220kV I bus or the 220kV II bus is a suspended soft bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086689.5U CN211456227U (en) | 2019-11-28 | 2019-11-28 | 220kV open-type distribution device based on 3/2 circuit breaker wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086689.5U CN211456227U (en) | 2019-11-28 | 2019-11-28 | 220kV open-type distribution device based on 3/2 circuit breaker wiring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211456227U true CN211456227U (en) | 2020-09-08 |
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ID=72304497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922086689.5U Active CN211456227U (en) | 2019-11-28 | 2019-11-28 | 220kV open-type distribution device based on 3/2 circuit breaker wiring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211456227U (en) |
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2019
- 2019-11-28 CN CN201922086689.5U patent/CN211456227U/en active Active
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Effective date of registration: 20231129 Address after: Room 601, Building C01, Entrepreneurship Headquarters Base, Fuyuan Road North, Wuqing Development Zone, Wuqing District, Tianjin City, 301726 Patentee after: TBEA INTERNATIONAL ENGINEERING Co.,Ltd. Address before: 110144 32 development road, Shenyang economic and Technological Development Zone, Liaoning Patentee before: TBEA SHENYANG ELECTRIC POWER SURVEY AND DESIGN Co.,Ltd. |