CN202435049U - Novel high-voltage series voltage compensation device - Google Patents
Novel high-voltage series voltage compensation device Download PDFInfo
- Publication number
- CN202435049U CN202435049U CN2011205372430U CN201120537243U CN202435049U CN 202435049 U CN202435049 U CN 202435049U CN 2011205372430 U CN2011205372430 U CN 2011205372430U CN 201120537243 U CN201120537243 U CN 201120537243U CN 202435049 U CN202435049 U CN 202435049U
- Authority
- CN
- China
- Prior art keywords
- novel high
- voltage
- voltage compensation
- compensation device
- series voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a novel high-voltage series voltage compensation device. The novel high-voltage series voltage compensation device is characterized by comprising an insulation platform (11) which has a power frequency withstand voltage being not lower than 185 kV to the ground; at least three supporting insulators (10) are mounted below the insulation platform (11); a capacitor device (1), a zinc oxide component (2) and a monitoring and control cabinet (7) are mounted on the insulation platform (11); a controller, a discharge resistor (3), a discharge switch (4), a by-pass switch (5) and sampling resistors (6) are mounted in the monitoring and control cabinet (7); and a coupling capacitor (9) is further mounted below the insulation platform (11) so as to supply power. The novel high-voltage series voltage compensation device has the beneficial effects that: the size is small, thus, the on-site transformation and implementation are facilitated; the construction cost is low, thus, the novel high-voltage series voltage compensation device has extremely high cost performance; the structure is simple, thus, the operating maintenance is facilitated; and a fast vacuum circuit breaker is adopted as an executive component, so that the service life is long, and the reliability is high.
Description
Technical field
The utility model relates to a kind of novel high-pressure series voltage compensation arrangement.
Background technology
Conventional series compensation device is mainly used in power system planning and operation specialty, is applied to the series compensation of high-tension line, to solve the quality of voltage problem that the heavy load long distance powedr transmission brings.Series compensation device be utilize series capacitance capacitive reactance offset the induction reactance of line inductance; Reach the purpose of compensation through the way that changes line reactance; Not only compensation effect can real-time tracking the variation of load, and the voltage fluctuation problem that causes when solving the heavy duty start and stop is more effective.Have only operating current to flow through when just moving in the circuit, the voltage at series capacitor two ends approaches about 1/10 of line work voltage.But this does not also mean that permission selects series capacitor according to 1/10 of line work voltage; This is because the voltage at series capacitor two ends will be than just often exceeding tens times after circuit is short-circuited, the overvoltage test in the time of must considering to tolerate short-circuit impact when selecting series capacitance apparatus rated voltage.
Therefore, it is very high that the rated voltage of common series compensation device is all selected, and this just need be connected with satisfied very high rated voltage requirement by many intermediate voltage capacitors, but also wants multi-channel parallel to satisfy the requirement of compensation capacity.This problem bulky with regard to bringing inevitably, that involve great expense; And the series compensation device itself that the multichannel connection in series-parallel is formed is equipped with auxiliary protection equipment such as power electronic element more just to have increased complexity, and this just certainly exists the problem of technical sophistication, poor reliability.Problems such as present conventional series compensation device is bulky, involve great expense, technical sophistication and poor reliability.
The utility model content
The purpose of the utility model provides that a kind of volume is little, cost is low, simple in structure, the life-span is long and reliability is high novel high-pressure series voltage compensation arrangement.
A kind of novel high-pressure series voltage compensation arrangement; Its special feature is; Comprise that power-frequency withstand voltage over the ground is not less than the insulated platform of 185kV, at least three post insulators are installed below this insulated platform, capacitor device, zinc oxide assembly and observing and controlling cabinet are installed on this insulated platform; In this observing and controlling cabinet, controller, discharge resistance, discharge switch, by-pass switch and sampling resistor are installed, thereby coupling capacitor power supply also is installed below insulated platform.
Wherein in a post insulator, bury be equipped with the observing and controlling cabinet in the communication optical fiber that is connected of controller.
Wherein the zinc oxide assembly is connected in parallel on the two ends of capacitor device, is connected in parallel on the two ends of capacitor device after by-pass switch and the sampling resistor parallel connection again, is connected in parallel on the two ends of capacitor device after discharge resistance and the discharge switch series connection.
Wherein post insulator has five.
Wherein discharge switch and by-pass switch all adopt Fast Speed Vacuum Circuit Breaker.
The beneficial effect of the utility model is: 1, volume is little, is convenient to on-the-spot the transformation and enforcement; 2, cost is low, has high performance price ratio; 3, simple in structure, make things convenient for operation maintenance; 4, adopt Fast Speed Vacuum Circuit Breaker as execution unit, the life-span is long, reliability is high.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model;
Accompanying drawing 2 is the circuit theory diagrams of the utility model.
Embodiment
Like Fig. 1, shown in 2; A kind of novel high-pressure series voltage compensation arrangement; Comprise that power-frequency withstand voltage over the ground is not less than the insulated platform 11 of 185kV; Five post insulators 10 are installed below this insulated platform 11; Capacitor device 1, zinc oxide assembly 2 and observing and controlling cabinet 7 are installed on this insulated platform 11, controller, discharge resistance 3, discharge switch 4, by-pass switch 5 and sampling resistor 6 are installed in this observing and controlling cabinet 7, thereby a coupling capacitor 9 power supplies also are installed below insulated platform 11.
Wherein in a post insulator 10, bury be equipped with observing and controlling cabinet 7 in the communication optical fiber 8 that is connected of controller; Zinc oxide assembly 2 is connected in parallel on the two ends of capacitor device 1; Be connected in parallel on the two ends of capacitor device 1 after by-pass switch 5 and sampling resistor 6 parallel connections again; Be connected in parallel on the two ends of capacitor device 1 after discharge resistance 3 is connected with discharge switch 4, discharge switch 4 all adopts Fast Speed Vacuum Circuit Breaker with by-pass switch 5.
As shown in Figure 1, the utility model adopts the voltage of the high energy ZnO assembly 2 of dynamically equal ability technological development in order to effective restriction series capacitance apparatus 1 two ends, and the fail safe that series capacitance apparatus 1 is moved provides guarantee; The utility model adopts based on the quick identification technology of short trouble and the Fast Speed Vacuum Circuit Breaker of developing based on quick eddy current Driving technique; Controlling the throwing of series capacitance apparatus 1 moves back; To shorten the superpotential duration to greatest extent, reduced the needed ability of high energy ZnO assembly (2) capacity greatly; The utility model has adopted coupling capacitor 9 solutions to be in the ability problem of getting of the high-pressure series voltage compensating device working power of high electric position operation; The utility model adopts the post insulator 10 of built-in fiber 8, has solved the insulation isolating problem of monitoring and communication system and high voltage installation.
As shown in Figure 1; Capacitor device 1 wherein, zinc oxide assembly 2, observing and controlling cabinet 7 are arranged in the power-frequency withstand voltage over the ground that is supported by five post insulators 10 and are not less than on the insulated platform 11 of 185kV, and the coupling capacitor of being drawn at high-pressure side by medium-tension bushing simultaneously 9 provides working power for whole device.Make rated voltage have only 1/10 series capacitor of line work voltage can series operation in the 110kV high-tension line by way of compensation equipment become possibility.Just for reducing the rated voltage of series capacitor significantly, the floor space of dwindling series compensation device reduces the capacity of series compensation capacitance and has created condition for this, thus bulky, the problem that involves great expense that have solved that common series compensation device exists.
Can also adopt the Fast Speed Vacuum Circuit Breaker based on quick eddy current Driving technique, closing time can be accomplished about 10ms even be faster, as discharge switch among Fig. 24 and by-pass switch 5.Utilize current instantaneous value and current changing rate criterion, realize the quick identification of short trouble, can within the 2ms after phase fault takes place, send action command as the line short fault.The discharge loop of discharge resistance 3 among Fig. 2 and discharge switch 4 formation series compensation capacitances; Discharge switch 4 is realized the series compensation capacitor short circuit is prevented that short circuit current from causing excessive shock to line facility and series compensation device within 15ms when circuit is short-circuited.Treat electric charge that the series compensation capacitance two ends store all after the discharge loop that discharge resistance 3 and discharge switch 4 constitute discharges, by-pass switch 5 closes a floodgate and series compensation capacitance is finally withdrawed from.The quick identification technology of short trouble and quick eddy current Driving technique greatly reduce the overvoltage energy that high energy ZnO assembly 2 bears, for condition has been created in the further miniaturization of the novel series voltage compensation arrangement of the related high pressure of the utility model.
Adopt the Fast Speed Vacuum Circuit Breaker with straight-moving mechanism of quick eddy current Driving technique, do not have intermediate links such as transmission mechanism, not only the life-span long, and reliability is high.Adopt the discharge switch 4 and by-pass switch 5 of Fast Speed Vacuum Circuit Breaker as the novel series voltage compensation arrangement of the related high pressure of the utility model; Wiring is simple, control is convenient, reliability is high, has satisfactorily resolved the technical sophistication that common series compensation device brings as salvo by multiple power electronic component and discharging gap and the problem of poor reliability.
Five post insulators 10 among Fig. 1 and the post insulator 10 of a built-in fiber 8 supporting insulated platform 11 and on all devices (series compensation capacitance device, zinc oxide assembly 2, observing and controlling cabinet 7).Pre-buried communication optical fiber 8 in the post insulator 10 of a built-in fiber 8 wherein.Controller, communication optical fiber 8, observing and controlling substation by in A, B, the C three-phase observing and controlling cabinet 7 can constitute supervisory control system, and exchanges data can also be realized through data-interface with the host computer of dispatch automated system in the observing and controlling substation.
Claims (5)
1. novel high-pressure series voltage compensation arrangement; It is characterized in that: comprise that power-frequency withstand voltage over the ground is not less than the insulated platform (11) of 185kV; In this insulated platform (11) below at least three post insulators (10) are installed; Capacitor device (1), zinc oxide assembly (2) and observing and controlling cabinet (7) are installed on this insulated platform (11); Controller, discharge resistance (3), discharge switch (4), by-pass switch (5) and sampling resistor (6) are installed in this observing and controlling cabinet (7), one coupling capacitor (9) also are installed thereby power supply in insulated platform (11) below.
2. novel high-pressure series voltage compensation arrangement as claimed in claim 1 is characterized in that: wherein in a post insulator (10), bury be equipped with observing and controlling cabinet (7) in the communication optical fiber (8) that is connected of controller.
3. according to claim 1 or claim 2 novel high-pressure series voltage compensation arrangement; It is characterized in that: wherein zinc oxide assembly (2) is connected in parallel on the two ends of capacitor device (1); Be connected in parallel on the two ends of capacitor device (1) after by-pass switch (5) and sampling resistor (6) parallel connection again, be connected in parallel on the two ends of capacitor device (1) after discharge resistance (3) and discharge switch (4) series connection.
4. according to claim 1 or claim 2 novel high-pressure series voltage compensation arrangement, it is characterized in that: wherein post insulator (10) has five.
5. according to claim 1 or claim 2 novel high-pressure series voltage compensation arrangement, it is characterized in that: wherein discharge switch (4) and by-pass switch (5) all adopt Fast Speed Vacuum Circuit Breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205372430U CN202435049U (en) | 2011-12-20 | 2011-12-20 | Novel high-voltage series voltage compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205372430U CN202435049U (en) | 2011-12-20 | 2011-12-20 | Novel high-voltage series voltage compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435049U true CN202435049U (en) | 2012-09-12 |
Family
ID=46784458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205372430U Expired - Fee Related CN202435049U (en) | 2011-12-20 | 2011-12-20 | Novel high-voltage series voltage compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684214A (en) * | 2011-12-20 | 2012-09-19 | 宁夏电力公司中卫供电局 | Novel high-voltage series voltage compensation device |
-
2011
- 2011-12-20 CN CN2011205372430U patent/CN202435049U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684214A (en) * | 2011-12-20 | 2012-09-19 | 宁夏电力公司中卫供电局 | Novel high-voltage series voltage compensation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102684214A (en) | Novel high-voltage series voltage compensation device | |
| US20120187089A1 (en) | High-voltage, super-voltage and heavy current breaker | |
| CN203690938U (en) | Low-voltage reactive-power automatic compensation device | |
| CN104009537A (en) | Box-type substation for switching between main power source and standby power source | |
| CN104218593A (en) | Series capacitor compensation device for power distribution network | |
| CN201946982U (en) | 10kV distribution line serial compensation and voltage regulation device based on an adaptive control | |
| CN103606933A (en) | Reactive capacitor compensation cabinet | |
| CN105337420B (en) | A kind of power transformer of energy-saving automatic distribution | |
| CN202435049U (en) | Novel high-voltage series voltage compensation device | |
| CN201398081Y (en) | Low-voltage magnetic control type filtering powerless dynamic compensation device | |
| CN202150705U (en) | Thyristor voltage adjusting transformer station automatic reactive compensation device for adjusting reactive capacity | |
| CN102013815A (en) | High-voltage DC converter transformer and connection method for on-load tap-changer thereof | |
| CN206640319U (en) | A kind of distribution box distribution transformer terminals | |
| CN201887468U (en) | Device for limiting all overvoltage | |
| CN201829958U (en) | Capacitor bank for directly compensating 110kV bus | |
| CN102170116B (en) | Real-time digital simulation system of fault current limiter | |
| CN2891436Y (en) | Super long range power transmission device | |
| CN203813447U (en) | Transformer station high voltage reactive automatic compensation device | |
| CN109510210A (en) | A kind of three-phase distribution route automatic pressure regulating device | |
| CN202474870U (en) | Intelligent switching device of 10kV reactive-load compensation equipment | |
| CN203933147U (en) | A kind of box-type substation that switches main power supply | |
| CN110661488B (en) | Photovoltaic power generation low-voltage ride-through detection device compatible with double voltage levels | |
| CN203553955U (en) | Reactive capacitance compensation cabinet | |
| CN2544452Y (en) | Low-voltage idle dynamic compensator | |
| CN204597479U (en) | A kind of railway power system of harmonic inhabitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |