CN202357901U - Line-side circuit of electric Locomotive crew - Google Patents
Line-side circuit of electric Locomotive crew Download PDFInfo
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- CN202357901U CN202357901U CN2011204826277U CN201120482627U CN202357901U CN 202357901 U CN202357901 U CN 202357901U CN 2011204826277 U CN2011204826277 U CN 2011204826277U CN 201120482627 U CN201120482627 U CN 201120482627U CN 202357901 U CN202357901 U CN 202357901U
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- pantograph
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Abstract
The utility model discloses a line-side circuit of an electric locomotive crew, which comprises two sets of pantograph line-side circuits, wherein each set of line-side circuit respectively comprises a high-voltage potential transformer, a pantograph, a high-voltage isolating switch, a main circuit breaker, a ground switch, a lightning arrester, a primary side high-voltage current transformer, a transformer, a primary side earthling current transformer, and a shaft end earthling device. The high-voltage circuit of the electric locomotive crew disclosed by the utility model further comprises a set of pantograph-free high-voltage circuit, including the main circuit breaker, the ground switch, the lightning arrester, the primary side high-voltage current transformer, the transformer, the primary side earthling current transformer and the shaft end earthling device; the three sets of high-voltage circuits are connected with high-voltage coupling cable through a car roof high voltage bus. The line-side circuit of the electric locomotive crew, provided by the utility model, can meet the requirements of heavy duty high-power traction, can achieve insulation in case of failures on any high-voltage components of electrical apparatus on line side, and ensures that the power loss of the whole vehicle is minimal after fault isolation.
Description
Technical field
The utility model relates to field of track traffic, specifically is a kind of electric locomotive networking lateral circuit.
Background technology
Electric locomotive obtains electric energy by pantograph from supply network, through giving locomotive traction system and control system power supply behind line circuit breaker, high voltage isolator, the voltage transformer.
At present the common operation mode of electric locomotive has single engine, two-shipper heavily to join traction and two-shipper outward heavily to join three kinds of tractions in fixing.The net side main circuit structure that the separate unit electric locomotive traction is used is as shown in Figure 1; During normal the operation; Current on line side successively passes through pantograph E01 (or E02), high voltage isolator Q03 (or Q04), line circuit breaker Q01, the former limit of voltage transformer T03 winding, by being back to traction substation after the axle head earth system G01 ground connection; When two electric locomotives heavily join traction outward, be separate between the circuit on side of overhead contact line of two electric locomotives, compose in parallel by two covers circuit shown in Figure 1; The power circuit that heavily joins traction in two electric locomotives are fixing is as shown in Figure 2, when normally moving, receives stream to supply with two locomotive electric energy by a pantograph, and a line circuit breaker is born the current switching of two locomotives.
The circuit on side of overhead contact line typical structure of battery-driven car group is as shown in Figure 3; Comprise two groups of electric locomotive circuit on side of overhead contact line, every networking lateral circuit comprises pantograph, high voltage potential transformer, line circuit breaker, earthing switch, branch current transformer, voltage transformer, high voltage isolator, former limit high-tension current inductor, former edge joint vagabond current transformer, axle head earth system.High voltage potential transformer, pantograph, line circuit breaker, high voltage isolator connect through the roof high voltage bus successively; Line circuit breaker is through earthing switch ground connection; The branch road parallel connection that former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer are connected in sequence inserts between line circuit breaker and the high voltage isolator; The former limit of voltage transformer winding low tension terminal is through behind the former edge joint vagabond current transformer, by axle head earth system ground connection; Each parallelly connected lightning arrester of former limit high-tension current inductor and high voltage potential transformer; The first networking lateral circuit is connected with the second networking lateral circuit with a cover high-pressure elastomeric cable through a high voltage isolator.During normal operation, heavily join identically in the circuit on side of overhead contact line of battery-driven car group is flow through journey and two electric locomotives are fixing, receive stream to two traction transformers electric energy to be provided by a pantograph, a line circuit breaker is born the current switching of permutation car.
Receive the restriction of factors such as single line circuit breaker current switching ability, transformer capacity, traction current transformation apparatus capacity, power of traction motor, above-mentioned circuit on side of overhead contact line can't satisfy the demand of heavily loaded High power Traction; And after above-mentioned circuit on side of overhead contact line mesohigh electric component broke down, the car load power waste was big, and the availability that the back car load appears in fault is low.
The utility model content
The utility model technical matters to be solved is; Not enough to prior art; A kind of electric locomotive networking lateral circuit is provided, satisfies the demand of heavily loaded High power Traction, and can both realize isolating after any High-Voltage Electrical Appliances parts of net side are broken down; The car load power waste is minimum after guaranteeing fault isolation, improves the availability of complete vehicle fault state.
For solving the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of electric locomotive networking lateral circuit; The circuit on side of overhead contact line that comprises two groups of band pantographs, the circuit on side of overhead contact line of every group of band pantograph comprise high voltage potential transformer, pantograph, high voltage isolator, line circuit breaker, earthing switch, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer, axle head earth system respectively.In every networking lateral circuit, high voltage potential transformer, pantograph, first high voltage isolator, second high voltage isolator connect through the roof high voltage bus successively; The branch road parallel connection that the former limit winding of line circuit breaker, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current mutual inductor serial are formed inserts between two high voltage isolators; The former limit of voltage transformer winding low tension terminal is through behind the former edge joint vagabond current transformer, by axle head earth system ground connection; The line circuit breaker two ends are connected with earthing switch; Second high voltage isolator of second high voltage isolator of the circuit on side of overhead contact line of first group of band pantograph and the circuit on side of overhead contact line of second group of band pantograph is through roof high voltage bus and high-pressure elastomeric cable connection.
The electric locomotive networking lateral circuit of the utility model also comprises one group not with the circuit on side of overhead contact line of pantograph; The circuit on side of overhead contact line with pantograph does not comprise line circuit breaker, earthing switch, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer, axle head earth system; The former limit winding of line circuit breaker, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer connect successively, and the line circuit breaker two ends are connected with earthing switch; Do not insert between second high voltage isolator of circuit on side of overhead contact line of second high voltage isolator and second group of band pantograph of circuit on side of overhead contact line of first group of band pantograph with the parallel connection of the circuit on side of overhead contact line of pantograph.
The electric locomotive circuit on side of overhead contact line of every group of band pantograph comprises a pantograph at least, near each pantograph, all is provided with at least one lightning arrester and a voltage transformer, and the high voltage input terminal of this lightning arrester and voltage transformer links to each other with pantograph.
The electric locomotive circuit on side of overhead contact line of every group of band pantograph is provided with at least two high voltage isolators, is respectively applied for to isolate pantograph and the circuit on side of overhead contact line of isolating adjacent locomotives.
A lightning arrester is set near each line circuit breaker, can effectively absorbs the switching surge of netting the side high voltage component.
The circuit on side of overhead contact line of every joint locomotive is provided with a former limit high-tension current inductor and a former edge joint vagabond current transformer at least, carries out primary current and detects, and detected current signal is used for locomotive control and protection.
A high voltage potential transformer is set near each pantograph; For whole electric locomotive group provides supply network voltage signal required when rising single pantograph operation; And when guaranteeing that whole electric locomotive group rises two pantographs operations, every joint can both be obtained the supply network voltage synchronizing signal at corresponding pantograph place by the locomotive of pantograph power supply.
Every joint locomotive comprises a line circuit breaker and an earthing switch at least, and earthing switch is arranged on the line circuit breaker two ends, and the circuit that guarantees to make when circuit on side of overhead contact line needs ground connection the line circuit breaker two ends is ground connection simultaneously.
In the electric locomotive networking lateral circuit of the utility model, after not shifting out from locomotive crew with the locomotive of pantograph, can constitute new complete electric locomotive group by the locomotive of two joint band pantographs, the circuit on side of overhead contact line protection is unaffected with the fault isolation function; The locomotive of band pantograph can use by single-unit; The locomotive with pantograph can not use with the locomotive marshalling back of band pantograph; The electric locomotive networking lateral circuit of the utility model can both realize isolating after net side High-Voltage Electrical Appliances parts are broken down; And the car load power waste is minimum after the assurance fault isolation, has satisfied the demand of High power Traction, and has improved the car load availability under the faulty condition.
Description of drawings
Fig. 1 is a separate unit electric locomotive circuit on side of overhead contact line schematic diagram;
Fig. 2 heavily joins electric locomotive circuit on side of overhead contact line schematic diagram in fixing;
Fig. 3 is a battery-driven car group typical case circuit on side of overhead contact line schematic diagram;
Fig. 4 is the utility model one embodiment electric locomotive networking lateral circuit schematic diagram;
Wherein:
E01/E02/E11/E21/E31: pantograph; Q01/Q11/Q21/Q33: line circuit breaker; Q03/Q04/Q13/Q23/Q31/Q32: high voltage isolator; T01/T11/T21/T31: high voltage potential transformer; T02/T04/T12/T22/T32: former limit high-tension current inductor; Q02/Q12/Q22/Q14/Q24/Q34: earthing switch; T03/T13/T23/T33: voltage transformer; T14/T24/T34: former edge joint vagabond current transformer; F01/F11/F12/F21/F31/F32: lightning arrester; T15/T25: branch current transformer.
The specific embodiment
Circuit shown in Figure 4 is a kind of electric locomotive networking lateral circuit structure that the utility model one embodiment provides; Circuit on side of overhead contact line and one group of net side power circuit that does not constitute the electric locomotive group of three joint drives by two groups of band pantographs with the circuit on side of overhead contact line of pantograph; Wherein first group and the 3rd group are the electric locomotive circuit on side of overhead contact line of band pantograph, and second group for the electric locomotive circuit on side of overhead contact line of pantograph.First group and the 3rd group of electric locomotive circuit on side of overhead contact line comprise high voltage potential transformer T11/T31, pantograph E11/E31, high voltage isolator Q13/Q23/Q31/Q32, line circuit breaker Q11/Q33, earthing switch Q14/Q34, former limit high-tension current inductor T12/T32, voltage transformer T13/T33, former edge joint vagabond current transformer T14/T34, axle head earth system G11/G31; Second group of electric locomotive circuit on side of overhead contact line comprises line circuit breaker Q21, earthing switch Q24, former limit high-tension current inductor T22, voltage transformer T23, former edge joint vagabond current transformer T24, axle head earth system G21.In first group and the 3rd group of electric locomotive circuit on side of overhead contact line; High voltage potential transformer, pantograph, first high voltage isolator, second high voltage isolator connect through the roof high voltage bus successively; The branch road parallel connection that the former limit winding of line circuit breaker, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current mutual inductor serial are formed inserts between two high voltage isolators; The former limit of voltage transformer winding low tension terminal is through behind the former edge joint vagabond current transformer; By axle head earth system ground connection, the line circuit breaker two ends are connected with earthing switch; In second group of electric locomotive circuit on side of overhead contact line, the former limit winding of line circuit breaker Q21, former limit high-tension current inductor T22, voltage transformer T23, former edge joint vagabond current transformer T24 connect successively, and line circuit breaker Q21 two ends are connected with earthing switch Q24; Second high voltage isolator Q23 of first group of electric locomotive circuit on side of overhead contact line and second high voltage isolator Q32 of the 3rd group of electric locomotive circuit on side of overhead contact line are through the high-pressure elastomeric cable connection, between second high voltage isolator Q23 of first group of electric locomotive circuit on side of overhead contact line of the 3rd group of electric locomotive circuit on side of overhead contact line parallel connection access and second the high voltage isolator Q32 of the 3rd group of electric locomotive circuit on side of overhead contact line.
The working process of present embodiment circuit is following:
(1) under the electric locomotive group normal operation, only rises a pantograph.Pantograph E11 rises when being flowed, and high voltage isolator Q13, Q23, Q32 are in closure state, and it is following to be flow through journey:
The supply network electric current gets into electric locomotive group roof high voltage bus through pantograph E11, and behind the high voltage isolator Q13 that flows through, one part of current is through line circuit breaker Q11, voltage transformer T13 former limit winding and axle head earth system G11; One part of current is through high voltage isolator Q23, high-pressure elastomeric cable M12, line circuit breaker Q21, voltage transformer T23 former limit winding and axle head earth system G21; One part of current is through high voltage isolator Q23, high-pressure elastomeric cable M12 and M23, high voltage isolator Q32, line circuit breaker Q33, voltage transformer T33 former limit winding and axle head earth system G31.
(2) under the electric locomotive group normal operation, pantograph E31 rises when being flowed, and high voltage isolator Q23, Q32, Q31 are in closure state, and it is following to be flow through journey:
The supply network electric current gets into electric locomotive group roof high voltage bus through pantograph E31, and behind the high voltage isolator Q31 that flows through, one part of current is through line circuit breaker Q33, voltage transformer T33 former limit winding and axle head earth system G31; One part of current is through high voltage isolator Q32, high-pressure elastomeric cable M23, line circuit breaker Q21, voltage transformer T23 former limit winding and axle head earth system G21; One part of current is through high voltage isolator Q32, high-pressure elastomeric cable M23 and M12, high voltage isolator Q23, line circuit breaker Q11, voltage transformer T13 former limit winding and axle head earth system G11.
(3) when pantograph E11 breaks down, high voltage isolator Q13 gets to and breaks off the position, can pantograph E11 be kept apart, and E31 obtains electric energy from supply network by pantograph, whole electric locomotive group to be flow through journey identical with (2), do not lose car load power;
(4) when pantograph E31 breaks down, high voltage isolator Q31 gets to and breaks off the position, can pantograph E31 be kept apart, and E11 obtains electric energy from supply network by pantograph, whole electric locomotive group to be flow through journey identical with (1), do not lose car load power;
(5) during line circuit breaker Q11 fault, the E11 pantograph does not rise, and breaks off high voltage isolator Q23, with the locomotive circuit on side of overhead contact line excision of line circuit breaker Q11 place, receives stream to supply power for other two joint cars by pantograph E31;
(6) during line circuit breaker Q21 fault, break off high voltage isolator Q23 and Q32, line circuit breaker Q21 place locomotive circuit on side of overhead contact line is isolated, rise pantograph E11 and pantograph E31, give other two to save locomotive power supplies respectively;
(7) during line circuit breaker Q33 fault, the E31 pantograph does not rise, and breaks off high voltage isolator Q32, with the locomotive circuit on side of overhead contact line excision of line circuit breaker Q33 place, receives stream to supply power for other two joint cars by pantograph E11;
(8) any one the joint locomotive transformer fault the time, the line circuit breaker that can break off on the corresponding branch road is isolated failure transformer, is not flowed and do not influence other locomotive;
(9) on the circuit on side of overhead contact line branch road of every joint car; A lightning arrester is set between former limit high-tension current inductor input terminal and the line circuit breaker lead-out terminal at least; Be used to absorb the line circuit breaker switching surge on the corresponding branch road, in order to avoid switching surge damages equipment such as voltage transformer and traction current transformation systems;
(10) lightning arrester is set at least near each pantograph; Be used to absorb the switching surge of pantograph on the corresponding locomotive and, check implements such as net side high voltage potential transformer damaged with the instantaneous overvoltage of avoiding pantograph switching surge and supply network from the instantaneous overvoltage of supply network;
(11) voltage transformer is set at least near each pantograph, is used to detect supply network voltage, the voltage on line side synchronizing signal is provided for simultaneously the pull-in control system of locomotive.
Claims (6)
1. electric locomotive networking lateral circuit; The circuit on side of overhead contact line that comprises two groups of band pantographs; Every networking lateral circuit comprises high voltage potential transformer, pantograph, high voltage isolator, line circuit breaker, earthing switch, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer, axle head earth system respectively; It is characterized in that; In every networking lateral circuit, high voltage potential transformer, pantograph, first high voltage isolator, second high voltage isolator connect through the roof high voltage bus successively, and the branch road parallel connection that the former limit winding of line circuit breaker, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current mutual inductor serial are formed inserts between two high voltage isolators; Former edge joint vagabond current transformer is through axle head earth system ground connection, and the line circuit breaker two ends are connected with earthing switch; Second high voltage isolator of the circuit on side of overhead contact line of first group of band pantograph is connected through roof high voltage bus, high-pressure elastomeric cable or high-tension connector with second high voltage isolator of the circuit on side of overhead contact line of second group of band pantograph.
2. electric locomotive networking lateral circuit according to claim 1; It is characterized in that; Also comprise one group not with the circuit on side of overhead contact line of pantograph; The circuit on side of overhead contact line with pantograph does not comprise line circuit breaker, earthing switch, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer, axle head earth system; The former limit winding of line circuit breaker, former limit high-tension current inductor, voltage transformer, former edge joint vagabond current transformer connect successively; The line circuit breaker two ends are connected with earthing switch, do not insert between second high voltage isolator of circuit on side of overhead contact line of second high voltage isolator and second group of band pantograph of circuit on side of overhead contact line of first group of band pantograph with the parallel connection of the circuit on side of overhead contact line of pantograph.
3. electric locomotive networking lateral circuit according to claim 1 and 2 is characterized in that every networking lateral circuit comprises at least one lightning arrester respectively, and lightning arrester is parallelly connected with line circuit breaker.
4. electric locomotive networking lateral circuit according to claim 1 is characterized in that, in said every networking lateral circuit, pantograph is at least one, and high voltage potential transformer is at least one, and the high voltage input terminal of high voltage potential transformer links to each other with pantograph.
5. electric locomotive networking lateral circuit according to claim 1 is characterized in that, in said every networking lateral circuit, high voltage isolator is more than two, and high voltage isolator connects through the roof high voltage bus.
6. electric locomotive networking lateral circuit according to claim 1 and 2 is characterized in that, limit, said every networking lateral circuit Central Plains high-tension current inductor, former edge joint vagabond current transformer, line circuit breaker and earthing switch are more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204826277U CN202357901U (en) | 2011-11-29 | 2011-11-29 | Line-side circuit of electric Locomotive crew |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204826277U CN202357901U (en) | 2011-11-29 | 2011-11-29 | Line-side circuit of electric Locomotive crew |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202357901U true CN202357901U (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204826277U Expired - Lifetime CN202357901U (en) | 2011-11-29 | 2011-11-29 | Line-side circuit of electric Locomotive crew |
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| Country | Link |
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| CN (1) | CN202357901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490618A (en) * | 2011-11-29 | 2012-06-13 | 南车株洲电力机车有限公司 | Network-side circuit of electric locomotive unit |
| CN106218424A (en) * | 2016-08-25 | 2016-12-14 | 中车唐山机车车辆有限公司 | Electric rail car group high-pressure system and electric rail car group |
-
2011
- 2011-11-29 CN CN2011204826277U patent/CN202357901U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490618A (en) * | 2011-11-29 | 2012-06-13 | 南车株洲电力机车有限公司 | Network-side circuit of electric locomotive unit |
| CN102490618B (en) * | 2011-11-29 | 2013-08-14 | 南车株洲电力机车有限公司 | Network-side circuit of electric locomotive unit |
| CN106218424A (en) * | 2016-08-25 | 2016-12-14 | 中车唐山机车车辆有限公司 | Electric rail car group high-pressure system and electric rail car group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120801 Effective date of abandoning: 20130814 |
|
| RGAV | Abandon patent right to avoid regrant |