CN209016704U - A kind of lightning protection compensator with monitoring function - Google Patents
A kind of lightning protection compensator with monitoring function Download PDFInfo
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- CN209016704U CN209016704U CN201821660740.8U CN201821660740U CN209016704U CN 209016704 U CN209016704 U CN 209016704U CN 201821660740 U CN201821660740 U CN 201821660740U CN 209016704 U CN209016704 U CN 209016704U
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- electric capacity
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Abstract
A kind of lightning protection compensator with monitoring function, including lightning protection selenium pile leakage current test unit, compensating electric capacity operating current detection unit, warning circuit and processor；Lightning protection selenium pile leakage current test unit and the input terminal of compensating electric capacity operating current detection unit are connected with lightning protection selenium pile leakage current circuit and compensating electric capacity working current loop respectively, and output end is connected with processor respectively, the output terminating systems host of processor；Lightning protection selenium pile leakage current test unit and compensating electric capacity operating current detection unit respectively include current sensor, I/V circuit, impedance matching circuit and A/D converter, detection unit acquires electric current by current sensor and is converted into digital signal, then is transmitted to processor and is handled, judged or alarmed.The lightning protection compensator energy real-time measurement and judge lightning protection selenium pile leakage current and compensating electric capacity operating current, undesirable alarm, monitoring result precisely, it is reliable, so that it is guaranteed that driving order is normal and safe.
Description
Technical field
The utility model relates to a kind of railway lightning protection devices, in particular to a kind of to be suitable for railway 25Hz phase-sensitive track circuits
The lightning protection compensator with monitoring function used.
Background technique
Railway 25Hz phase-sensitive track circuits are the track circuits that China generally uses, and are made of, send power supply, sending end and receiving end
End equipment includes power transmission choke transformer, track transformer etc., by end equipment include by electric choke transformer, track transformer,
Lightning protection compensator, protection box, 25Hz track relay etc..
Wherein there are two independent functions for lightning protection compensator tool, and a function is using lightning protection selenium pile to 25Hz track relay
The track input side of device carries out lightning protection, another function is the sense using compensating electric capacity compensation 25Hz track relay local coil
Property reactive power, Local frequency division device-track relay local coil circuit power factor is improved, to reduce Local frequency division device electricity
The output electric current in source.
In use, the performance of selenium pile can gradually decline over time, increase so as to cause leakage current, when
When leakage current is greater than certain value, the work of track relay is influenced, track circuit " red band " is caused；Equally, compensating electric capacity
Capacity can also gradually reduce over time, compensating electric capacity capacity decline after, can make the power in locally supplied power source circuit because
Number reduces, and increases the load of locally supplied power source, if locally supplied power source's overload, it is unstable to will lead to output voltage, influences whole
A track circuit reliability of operation.
Problem of the existing technology is: can not be measured in real time, can only take to the working performance of lightning protection compensator
Regular manual testing makes track relay mistake fall and cause rail after the leakage current of lightning protection compensator is greater than certain value
Road circuit " red band " failure, will cause to drive a vehicle it is disorder, directly threaten traffic safety.
Utility model content
The purpose of this utility model is to provide a kind of lightning protection compensator with monitoring function, to overcome above-mentioned prior art
Existing deficiency improves the reliabilty and availability of phase failure protector.
The technical scheme adopted by the utility model is that:
A kind of lightning protection compensator with monitoring function, including lightning protection selenium pile and compensating electric capacity, the lightning protection selenium pile and 25Hz
Two relay track coils of binary of phase-sensitive track circuits simultaneously meet composition lightning protection selenium pile leakage current circuit, compensating electric capacity and 25Hz
The local coil of two relays of binary of phase-sensitive track circuits simultaneously connects composition compensating electric capacity working current loop；
The lightning protection compensator further includes lightning protection selenium pile leakage current test unit, compensating electric capacity operating current detection unit, place
Manage device and warning circuit；
The lightning protection selenium pile leakage current test unit include I A, I/V circuit of current sensor, I A, I A of impedance matching circuit and
I A of A/D converter, I A primary side of current sensor are serially connected in lightning protection selenium pile leakage current circuit, are flanked for I A of current sensor bis- times
The input terminal of I A of I/V circuit, the input terminal of I A of I/V circuit output termination, I A of impedance matching circuit, I A's of impedance matching circuit is defeated
The input terminal of I A of A/D converter, the input terminal of the output termination processor of I A of A/D converter are terminated out；
The compensating electric capacity operating current detection unit includes current sensor II, I/V circuit II, impedance matching circuit II
With A/D converter II, II primary side of current sensor is serially connected in compensating electric capacity working current loop, and current sensor II 2 times
Flank the input terminal of I/V circuit II, the input terminal of the output termination impedance matching circuit II of I/V circuit II, impedance matching circuit
The input terminal of II output termination A/D converter II, the output of A/D converter II terminate another input terminal of processor；
In lightning protection selenium pile leakage current test unit:
I A of current sensor samples lightning protection selenium pile leakage current with isolation method, then transmits sample rate current
Give I/V circuit I A；
I A of I/V circuit, which is used to convert sample rate current to, is suitble to the voltage signal of measurement to be transmitted to I A of impedance matching circuit；
I A of impedance matching circuit is used to I A of the I/V circuit voltage signal transmitted being converted to output impedance and A/D converter I
The input impedance phase of A it is matched with lightning protection selenium pile leakage current corresponding to voltage signal；
I A of A/D converter believes for what will be converted through I A of impedance matching circuit with voltage corresponding to lightning protection selenium pile leakage current
Number it is converted into digital signal, is transmitted further to processor；
In compensating electric capacity operating current detection unit:
The current sensor II samples compensating electric capacity operating current with isolation method, then passes sample rate current
Pass I/V circuit II；
I/V circuit II, which is used to convert sample rate current to, is suitble to the voltage signal of measurement to be transmitted to impedance matching circuit II；
Impedance matching circuit II is used to the voltage signal that I/V circuit II transmits being converted to output impedance and A/D converter
II input impedance phase it is matched with compensating electric capacity operating current corresponding to voltage signal；
A/D converter II be used for will be converted through impedance matching circuit II with voltage corresponding to compensating electric capacity operating current
Signal is converted into digital signal, is transmitted further to processor；
The processor is used for:
(1) to the digitized signal from lightning protection selenium pile leakage current test unit and compensating electric capacity operating current detection unit
It measures；
(2) capacity of compensating electric capacity is calculated according to compensating electric capacity operating current measurement result；
(3) by the threshold value comparison of the above result for measuring and calculating and setting, driving display circuit provides corresponding instruction,
Start warning circuit alarm if meeting alert if；
Its further technical solution is:
The warning circuit is connected to the output end of processor, and another 2 output ends of processor link display circuit and lead to
Interrogate circuit；
The display circuit is used to indicate the state and compensating electric capacity range of capacity of lightning protection selenium pile leakage current；
The communicating circuit is for completing and the data exchange of external equipment；
Further:
The lightning protection compensator further includes the second lightning protection selenium pile leakage identical with lightning protection selenium pile leakage current test cellular construction
Current detecting unit, the second lightning protection selenium pile leakage current test unit include I B, I/V circuit of current sensor, I B, impedance
With I B of I B of circuit and A/D converter, I B primary side of current sensor is serially connected in lightning protection selenium pile leakage current circuit, current sensor
I B secondary side is connect with the input terminal of I B of I/V circuit, the input terminal of I B of I/V circuit output termination, I B of impedance matching circuit, impedance
The input terminal of output termination I B of A/D converter of I B of match circuit, the output end of I B of A/D converter are defeated with I A's of A/D converter
The same input terminal of processor is terminated out.
Due to taking above-mentioned technical proposal, a kind of lightning protection compensator with monitoring function of the utility model and its monitoring side
Method has the advantages that
1. a kind of lightning protection compensator with monitoring function due to the utility model has lightning protection selenium pile leakage current test list
Member, compensating electric capacity operating current detection unit, processor and warning circuit, thus:
(1) real-time measurement can be carried out to lightning protection selenium pile leakage current and judges whether its leakage current meets the requirements and indicate,
It will call the police when lightning protection selenium pile leakage current is undesirable；
(2) can real-time measurement compensating electric capacity operating current, and compensating electric capacity is calculated by compensating electric capacity operating current
Capacity, the range of instruction capacitance deterioration, will call the police when compensating electric capacity capability value is undesirable；
So that it is guaranteed that driving order is normal and traffic safety；
2. a kind of lightning protection compensator with monitoring function is equipped with identical with lightning protection selenium pile leakage current test cellular construction
The second lightning protection selenium pile leakage current test unit is arranged by the different parameters of two lightning protection selenium pile leakage current test units,
The detection range of leakage current can be expanded, improve detection accuracy；
3. a kind of lightning protection compensator with monitoring function of the utility model is relatively independent, original phase-sensitive track electricity is not influenced
The operation on road, monitoring method are scientific, reliable.
It is special to a kind of technology of lightning protection compensator with monitoring function of the utility model with reference to the accompanying drawings and examples
Sign is further described.
Detailed description of the invention
Fig. 1: 25Hz phase-sensitive track circuits schematic diagram；
A kind of Fig. 2: lightning protection compensator structure block diagram with monitoring function of the utility model embodiment one；
Fig. 3: a kind of lightning protection compensator structure block diagram with monitoring function of the utility model embodiment two is (anti-with second
Thunder selenium pile leakage current detection unit)；
In Fig. 1:
1-track frequency divider, 2-Local frequency division devices, 3-sending end track transformers, 4-sending end choke transformers,
5-tracks, 6-receiving end choke transformers, 7-receiving end track transformers, 8-protection boxes, the 9-track relays of binary two
Device, L1-track coil, L2-local coil, the 10-lightning protection compensators with monitoring function；
In Fig. 2, Fig. 3:
01-lightning protection selenium pile, 02-compensating electric capacity, 031-lightning protection selenium pile leakage current detection unit, 311-current sensors I
A, 312-I/V circuit, I A, 313-impedance matching circuit, I A, 314-A/D converter, I A；
032-the second lightning protection selenium pile leakage current detection unit, 321-current sensor, I B, 322-I/V circuit I B, 323-
I B of impedance matching circuit, 324-A/D converter, I B；
04-compensating electric capacity operating current detection unit, 41-current sensors II, 42-I/V circuits II, 43-impedances
Match circuit II, 44-A/D converters II；
05- control unit, 51-processors, 52-warning circuits, 53-display circuits, 54-communicating circuits.
Wen Zhong:
I A, I/V circuit of I/V circuit, I B, I/V circuit II -- current-voltage conversion circuit,
I A of A/D converter, I B of A/D converter, A/D converter II -- analog-digital converter；
Specific embodiment,
Embodiment one
A kind of lightning protection compensator with monitoring function, including lightning protection selenium pile 01 and compensating electric capacity 02, the lightning protection selenium pile 01
With two relays of binary, the 9 track coil L1 of 25Hz phase-sensitive track circuits and connect and constitute lightning protection selenium pile leakage current circuit, compensation
The local coil L2 of two relays 9 of binary of capacitor 02 and 25Hz phase-sensitive track circuits simultaneously connects composition compensating electric capacity operating current
Circuit；It is characterized by:
The lightning protection compensator further includes lightning protection selenium pile leakage current test unit 031, compensating electric capacity operating current detection unit
04, processor 51 and warning circuit 52；
The lightning protection selenium pile leakage current test unit 031 includes I A311, I/V circuit of current sensor, I A312, impedance
With I A314 of I A313 of circuit and A/D converter, I A primary side of current sensor is serially connected in lightning protection selenium pile leakage current circuit, electric current
Flank the input terminal of I A of I/V circuit, the input terminal of I A of I/V circuit output termination, I A of impedance matching circuit, resistance for I A of sensor bis- times
The input terminal of output termination I A of A/D converter of anti-I A of match circuit, the input of the output termination processor 51 of I A of A/D converter
End；
The compensating electric capacity operating current detection unit 04 includes current sensor II 41, I/V circuit II 42, impedance matching
Circuit II 43 and A/D converter II 44, II 41 primary side of current sensor are serially connected in compensating electric capacity working current loop, electric current
Flank the input terminal of I/V circuit II 42, the input of the output termination impedance matching circuit II 43 of I/V circuit II for sensor II 2 times
It holds, the input terminal of the output termination A/D converter II 44 of impedance matching circuit II 43, at the output termination of A/D converter II 44
Manage another input terminal of device 51；
In lightning protection selenium pile leakage current test unit:
I A311 of current sensor samples lightning protection selenium pile leakage current with isolation method, and sample rate current is transmitted
Give I/V circuit I A312；
I A312 of I/V circuit, which is used to convert sample rate current to, is suitble to the voltage signal of measurement to be transmitted to impedance matching circuit I
A313；
I A313 of impedance matching circuit is used to I A312 of the I/V circuit voltage signal transmitted being converted to output impedance and A/D
The input impedance phase of I A314 of converter it is matched with lightning protection selenium pile leakage current corresponding to voltage signal；
I A314 of A/D converter for will through I A313 of impedance matching circuit convert with corresponding to lightning protection selenium pile leakage current
Voltage signal is converted into digital signal, is transmitted further to processor 51；
In compensating electric capacity operating current detection unit:
The current sensor II 41 samples compensating electric capacity operating current with isolation method, and sample rate current is transmitted
To I/V circuit II 42；
I/V circuit II, which is used to convert sample rate current to, is suitble to the voltage signal of measurement to be transmitted to impedance matching circuit II；
Impedance matching circuit II 43 is used to being converted to the voltage signal that I/V circuit II transmits into output impedance and A/D is converted
The input impedance phase of device II 44 it is matched with compensating electric capacity operating current corresponding to voltage signal；
A/D converter II 44 be used for will be converted through impedance matching circuit II with electricity corresponding to compensating electric capacity operating current
Pressure signal is converted into digital signal, is transmitted further to processor 51；
The processor 51 is used for:
(1) to the number from lightning protection selenium pile leakage current test unit 031 and compensating electric capacity operating current detection unit 04
Change signal to measure；
(2) capacity of compensating electric capacity is calculated according to compensating electric capacity operating current measurement result；
(3) by the threshold value comparison of the above result for measuring and calculating and setting, driving display circuit provides corresponding instruction,
Start warning circuit alarm if meeting alert if；
The warning circuit 52 is connected to another 2 output ends link display electricity of the output end of processor 51, processor 51
Road 53 and communicating circuit 54, the output termination external detection instrument or system host of communicating circuit 54；
The display circuit 53 is used to indicate the state and compensating electric capacity range of capacity of lightning protection selenium pile leakage current；
The communicating circuit 54 is for completing and the data exchange of external equipment；
The communication modes that system's system host uses is RS485, CAN, Ethernet or wireless telecommunications.
Embodiment two
A kind of lightning protection compensator with monitoring function, structure are basically the same as the first embodiment, except that: it is described anti-
Thunder compensator further includes the second lightning protection selenium pile leakage current test unit identical with lightning protection selenium pile leakage current test 031 structure of unit
032, the second lightning protection selenium pile leakage current test unit 032 includes I B321, I/V circuit of current sensor, I B322, impedance
With I B324 of I B323 of circuit and A/D converter, I B321 primary side of current sensor is serially connected in lightning protection selenium pile leakage current circuit,
Flank the input terminal of I B322 of I/V circuit, I B322 of I/V circuit output termination impedance matching circuit I for I B321 of current sensor bis- times
The input terminal of B323, the input terminal of output termination I B324 of A/D converter of I B323 of impedance matching circuit, A/D converter I
The same input terminal of the output termination processor 51 of the output end and I A314 of A/D converter of B324.
In use, the related parameter of the second lightning protection selenium pile leakage current test unit can be set according to actual conditions, to obtain
Bigger leakage current test range is obtained, to improve detection accuracy.
Note:
A kind of lightning protection compensator with monitoring function of the utility model, what is be directed to is mainly that binary two is used in circuit
The lightning protection compensator of position track relay, but be equally applicable to using " 25Hz phase-sensitive track circuits microelectronics receiver (referred to as electricity
Sub-receiver) " the lightning protection compensator of substitution " two track relays of binary ".
Claims (3)
1. a kind of lightning protection compensator with monitoring function, including lightning protection selenium pile (01) and compensating electric capacity (02), the lightning protection selenium pile
With two relay (9) track coils (L1) of binary of 25Hz phase-sensitive track circuits and connect and constitute lightning protection selenium pile leakage current circuit,
The local coil (L2) of two relays (9) of binary of compensating electric capacity and 25Hz phase-sensitive track circuits simultaneously connects composition compensating electric capacity work
Make current loop；It is characterized by:
The lightning protection compensator further includes lightning protection selenium pile leakage current test unit (031), compensating electric capacity operating current detection unit
(04), processor (51) and warning circuit (52)；
The lightning protection selenium pile leakage current test unit (031) includes I A(311 of current sensor), I A(312 of I/V circuit), impedance
I A(313 of match circuit) and I A(314 of A/D converter), I A primary side of current sensor is serially connected in lightning protection selenium pile leakage current circuit
In, flank the input terminal of I A of I/V circuit for I A of current sensor bis- times, I A of I/V circuit output termination, I A's of impedance matching circuit is defeated
Enter end, the input terminal of output termination I A of A/D converter of I A of impedance matching circuit, the output of I A of A/D converter terminates processor
(51) input terminal；
The compensating electric capacity operating current detection unit (04) includes current sensor II (41), I/V circuit II (42), impedance
With circuit II (43) and A/D converter II (44), current sensor II (41) primary side is serially connected in compensating electric capacity operating current and returns
The output of Lu Zhong, the secondary input terminal for flanking I/V circuit II (42) of current sensor II (41), I/V circuit II (42) terminate resistance
The input terminal of anti-match circuit II (43), the input terminal of output termination A/D converter II (44) of impedance matching circuit II (43),
The output of A/D converter II (44) terminates processor (51) another input terminal；
In lightning protection selenium pile leakage current test unit:
I A(311 of current sensor) lightning protection selenium pile leakage current is sampled with isolation method, sample rate current is passed to
I A(312 of I/V circuit)；
I A(312 of I/V circuit) for by sample rate current be converted into be suitble to measurement voltage signal be transmitted to I A of impedance matching circuit
(313)；
I A(313 of impedance matching circuit) for I A(312 of the I/V circuit) voltage signal transmitted to be converted to output impedance and A/D
I A(314 of converter) input impedance phase it is matched with lightning protection selenium pile leakage current corresponding to voltage signal；
I A(314 of A/D converter) for will be through I A(313 of impedance matching circuit) conversion with corresponding to lightning protection selenium pile leakage current
Voltage signal is converted into digital signal, is transmitted further to processor (51)；
In compensating electric capacity operating current detection unit:
The current sensor II (41) samples compensating electric capacity operating current with isolation method, and sample rate current is passed to
I/V circuit II (42)；
I/V circuit II (42), which is used to convert sample rate current to, is suitble to the voltage signal of measurement to be transmitted to impedance matching circuit II
(43)；
Impedance matching circuit II (43) is used to the voltage signal that I/V circuit II transmits being converted to output impedance and A/D converter
The input impedance phase of II (44) it is matched with compensating electric capacity operating current corresponding to voltage signal；
A/D converter II (44) for will through impedance matching circuit II (43) convert with corresponding to compensating electric capacity operating current
Voltage signal is converted into digital signal, is transmitted further to processor (51)；
The processor (51) is used for:
(1) to the number for coming from lightning protection selenium pile leakage current test unit (031) and compensating electric capacity operating current detection unit (04)
Change signal to measure；
(2) capacity of compensating electric capacity is calculated according to compensating electric capacity operating current measurement result；
(3) by the threshold value comparison of the above result for measuring and calculating and setting, driving display circuit provides corresponding instruction, if
Meet alert and if then starts warning circuit alarm.
2. a kind of lightning protection compensator with monitoring function as described in claim 1, it is characterised in that:
The warning circuit (52) is connected to the output end of processor (51), another 2 output ends connection of the processor (51)
Display circuit (53) and communicating circuit (54), the output end of communicating circuit (54) are connect with external equipment or system host；
The display circuit (53) is used to indicate the state and compensating electric capacity range of capacity of lightning protection selenium pile leakage current；
The communicating circuit (54) is for the data exchange with external equipment.
3. a kind of lightning protection compensator with monitoring function as claimed in claim 2, it is characterised in that: the lightning protection compensator is also
Including the second lightning protection selenium pile leakage current test unit (032) identical with lightning protection selenium pile leakage current test unit (031) structure, institute
Stating the second lightning protection selenium pile leakage current test unit (032) includes I B(321 of current sensor), I B(322 of I/V circuit), impedance
With I B(323 of circuit) and I B(324 of A/D converter), I B(321 of current sensor) primary side be serially connected in lightning protection selenium pile electric leakage flow back to
Lu Zhong, I B(321 of current sensor) secondary flank I B(322 of I/V circuit) input terminal, I B(322 of I/V circuit) output termination resistance
Anti- I B(323 of match circuit) input terminal, I B(323 of impedance matching circuit) output terminate I B(324 of A/D converter) input
End, I B(324 of A/D converter) output end and I A(314 of A/D converter) output termination processor (51) same input
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821660740.8U CN209016704U (en) | 2018-10-12 | 2018-10-12 | A kind of lightning protection compensator with monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821660740.8U CN209016704U (en) | 2018-10-12 | 2018-10-12 | A kind of lightning protection compensator with monitoring function |
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| Publication Number | Publication Date |
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| CN209016704U true CN209016704U (en) | 2019-06-21 |
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ID=66838421
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| CN201821660740.8U Active CN209016704U (en) | 2018-10-12 | 2018-10-12 | A kind of lightning protection compensator with monitoring function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104035A (en) * | 2021-12-27 | 2022-03-01 | 卡斯柯信号有限公司 | Receiver for 50HZ phase-sensitive track circuit |
-
2018
- 2018-10-12 CN CN201821660740.8U patent/CN209016704U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104035A (en) * | 2021-12-27 | 2022-03-01 | 卡斯柯信号有限公司 | Receiver for 50HZ phase-sensitive track circuit |
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