CN207623395U - A kind of divider of ontology and second divided voltage plate Phototube Coupling - Google Patents
A kind of divider of ontology and second divided voltage plate Phototube Coupling Download PDFInfo
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- CN207623395U CN207623395U CN201721435823.2U CN201721435823U CN207623395U CN 207623395 U CN207623395 U CN 207623395U CN 201721435823 U CN201721435823 U CN 201721435823U CN 207623395 U CN207623395 U CN 207623395U
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Abstract
The utility model discloses the divider of a kind of ontology and second divided voltage plate Phototube Coupling, include the high-voltage arm being connect with high direct voltage line, low-voltage arm, second divided voltage plate, for by the isolating device of second divided voltage plate and divider ontology electrical isolation, remote end module and control protection screen；Low-voltage arm connects and composes pressure divider circuit with high-voltage arm；Second divided voltage plate includes the circuit that several are arranged in parallel, and each circuit includes the third capacitance being set up in parallel and 3rd resistor；Voltage analog signal in second divided voltage plate is converted to light digital signal by remote end module, and is transferred on control protection screen.Second divided voltage plate and low-voltage arm are isolated by isolating device for this divider, the electrical equipment on a certain telegram in reply road, which breaks down, in second divided voltage plate can not change the no-load voltage ratio of divider, the normal work for not influencing other circuits in second divided voltage plate improves divider job stability.
Description
Technical field
The utility model is related to DC voltage measurement technical fields, and in particular to a kind of ontology and second divided voltage plate photoelectricity every
From divider.
Background technology
In DC transmission engineering, divider is DC control protection and measures recording system acquisition voltage most
One of capital equipment.Divider is mainly used in the measurement of current conversion station direct current pole busbar and neutral bus DC voltage, is
Change of current stand control is protected and fault recording system provides accurate voltage signal, and such as breaking down to directly result in measures voltage not
Accurately, DC transmission system is even resulted in be latched.Therefore, it is directly related to direct current whether the normal work of divider
The stable operation of transmission system.
When the resistive electrical equipment that direct-current secondary divides a certain circuit in plate breaks down, divider is changed
It is abnormal to directly result in other circuit measurings appearance of divider second divided voltage plate for no-load voltage ratio.It can be seen that eliminating second divided voltage plate
Influence of the failure to low-pressure side resistance value, is of great significance for the safe and stable operation of divider and current conversion station.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of ontology and second divided voltage plate photoelectricity are provided
The divider of isolation, the divider stability is good, reliability is high.
The utility model is achieved through the following technical solutions：A kind of ontology is straight with second divided voltage plate Phototube Coupling
Flow point depressor comprising high-voltage arm, low-voltage arm, second divided voltage plate, for by second divided voltage plate and divider ontology it is electrical
Isolating device, remote end module and the control protection screen of isolation；The high-voltage arm is connect with high direct voltage line, the low-voltage arm and institute
State the pressure divider circuit that high-voltage arm connects and collectively forms partial pressure；One end of the isolating device is connect with the low-voltage arm, another
One end is connect with the second divided voltage plate；The second divided voltage plate includes the circuit that several are arranged in parallel, and each circuit includes
The third capacitance and 3rd resistor being set up in parallel；The remote end module is connect with the second divided voltage plate, and the distal end mould
Voltage analog signal in the second divided voltage plate is converted to light digital signal by block, and is transferred on the control protection screen.
The both ends of isolating device are connected with low-voltage arm, second divided voltage plate respectively, realize second divided voltage plate and DC partial voltage
Device ontology electrical isolation；Second divided voltage plate is realized carries out second divided voltage to low-voltage arm；
The high-voltage arm includes first resistor and the first equalizing capacitance, and the first resistor and first equalizing capacitance are simultaneously
It is associated between high direct voltage line and the low-voltage arm.
The low-voltage arm includes second resistance, the second equalizing capacitance and lightning protection diode；The second resistance, described second
Equalizing capacitance and lightning protection diodes in parallel setting, one end in parallel connect with the high-voltage arm, other end ground wire.
The isolating device includes electric signal/optical signal conversion module and optical signal/electric signal conversion module, described
Electric signal/optical signal conversion module one end is connect with the low-voltage arm, the other end and the optical signal/electric signal conversion module
Connection, the optical signal/electric signal conversion module are connect with the second divided voltage plate.
It is compared with the prior art, the utility model has the advantage of：The utility model passes through using divider as object
Isolating device is isolated by second divided voltage plate and low-voltage arm, and the electrical equipment on a certain telegram in reply road breaks down in second divided voltage plate
The no-load voltage ratio of divider can not be changed, the normal work in other circuits in second divided voltage plate is not influenced, improve DC partial voltage
Device job stability；The prior art is compared, the divider that this ontology is isolated with second divided voltage plate has apparent advantage.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Reference numeral meaning in figure：1, high-voltage arm；2, low-voltage arm；3, isolating device；4, second divided voltage plate；5, distal end mould
Block；6, protection screen is controlled；7, electric signal/optical signal conversion module；8, optical signal/electric signal conversion module；R1, first resistor；
C1, the first equalizing capacitance；R2, second resistance；C2, the second equalizing capacitance；R3,3rd resistor；C3, third capacitance；F, lightning protection two
Pole pipe；ES electric signals；OS, optical signal.
Specific implementation mode
The content of the utility model is described in further details with reference to the accompanying drawings and detailed description.
Embodiment
Refering to fig. 1, it is the divider of a kind of ontology and second divided voltage plate Phototube Coupling comprising high-voltage arm 1, low pressure
Arm 2, second divided voltage plate 4, the isolating device 3 for by second divided voltage plate 4 with divider ontology electrical isolation, remote end module
5 and control protection screen 6；High-voltage arm 1 is connect with high direct voltage line, and low-voltage arm 2 connect with high-voltage arm 1 and collectively forms point of partial pressure
Push back road；One end of isolating device 3 is connect with low-voltage arm 2, and the other end is connect with second divided voltage plate 4；Second divided voltage plate 4 includes
Several circuits being arranged in parallel, each circuit include the third capacitance C3 being set up in parallel and 3rd resistor R3；Remote end module 5 with
Second divided voltage plate 4 connects, and the voltage analog signal in second divided voltage plate 4 is converted to light digital signal by remote end module 5, and
It is transferred on control protection screen 6.
The both ends of isolating device 3 are electrically connected with low-voltage arm 2, second divided voltage plate 4 respectively, realize second divided voltage plate 4 with it is straight
Flow point depressor ontology electrical isolation；Second divided voltage plate 4 is realized carries out second divided voltage to low-voltage arm 2；
High-voltage arm 1 includes first resistor R1 and the first equalizing capacitance C1, first resistor R1 and the first equalizing capacitance C1 in parallel
Between high direct voltage line and low-voltage arm 2.
Low-voltage arm 2 includes second resistance R2, the second equalizing capacitance C2 and lightning protection diode F；Second resistance R2, second are pressed
Capacitance C2 and lightning protection diode F are arranged in parallel, and one end in parallel connects with high-voltage arm 1, other end ground wire.
Isolating device 3 includes electric signal/optical signal conversion module 7 and optical signal/electric signal conversion module 8, telecommunications
Number/7 one end of optical signal conversion module connect with low-voltage arm 2, the other end is connect with optical signal/electric signal conversion module 8, light letter
Number/electric signal conversion module 8 connection connect with second divided voltage plate 4.Refering to fig. 1, ES represents electric signal, and OS represents optical signal；Electricity
The electric signal ES input terminals of signal/optical signal conversion module 7 are connect with low-voltage arm 2, the light of electric signal/optical signal conversion module 7
The optical signal OS input terminals of signal OS output ends and optical signal/electric signal conversion module 8, optical signal/electric signal conversion module 8
Electric signal ES output ends are connect with second divided voltage plate 4.
Above-listed detailed description is illustrating for the utility model possible embodiments, which is not to limit
The scope of the claims of the utility model, all equivalence enforcements or change without departing from carried out by the utility model are intended to be limited solely by this case
In the scope of the claims.
Claims (4)
1. the divider of a kind of ontology and second divided voltage plate Phototube Coupling, it is characterised in that：Including high-voltage arm, low-voltage arm,
Second divided voltage plate, for by isolating device, remote end module and the control of second divided voltage plate and divider ontology electrical isolation
Protection screen；The high-voltage arm is connect with high direct voltage line, and the low-voltage arm connect with the high-voltage arm and collectively forms partial pressure
Pressure divider circuit；One end of the isolating device is connect with the low-voltage arm, and the other end is connect with the second divided voltage plate；It is described
Second divided voltage plate includes the circuit that several are arranged in parallel, and each circuit includes the third capacitance being set up in parallel and 3rd resistor；
The remote end module is connect with the second divided voltage plate, and the remote end module is by the voltage analog in the second divided voltage plate
Signal is converted to light digital signal, and is transferred on the control protection screen.
2. the divider of ontology according to claim 1 and second divided voltage plate Phototube Coupling, it is characterised in that：It is described
High-voltage arm includes first resistor and the first equalizing capacitance, and the first resistor and first equalizing capacitance are connected in parallel on high direct voltage
Between line and the low-voltage arm.
3. according to claim 1 or the divider of the ontology and second divided voltage plate Phototube Coupling, it is characterised in that：Institute
It includes second resistance, the second equalizing capacitance and lightning protection diode to state low-voltage arm；The second resistance, second equalizing capacitance and
The lightning protection diodes in parallel setting, one end in parallel connect with the high-voltage arm, other end ground wire.
4. the divider of ontology according to claim 1 and second divided voltage plate Phototube Coupling, it is characterised in that：It is described
Isolating device includes electric signal/optical signal conversion module and optical signal/electric signal conversion module, the electric signal/optical signal
Conversion module one end is connect with the low-voltage arm, and the other end is connect with the optical signal/electric signal conversion module, the light letter
Number/electric signal conversion module connect with the second divided voltage plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721435823.2U CN207623395U (en) | 2017-10-31 | 2017-10-31 | A kind of divider of ontology and second divided voltage plate Phototube Coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721435823.2U CN207623395U (en) | 2017-10-31 | 2017-10-31 | A kind of divider of ontology and second divided voltage plate Phototube Coupling |
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| Publication Number | Publication Date |
|---|---|
| CN207623395U true CN207623395U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721435823.2U Active CN207623395U (en) | 2017-10-31 | 2017-10-31 | A kind of divider of ontology and second divided voltage plate Phototube Coupling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148748A (en) * | 2023-04-23 | 2023-05-23 | 常州博瑞电力自动化设备有限公司 | DC voltage divider calibration method and system |
-
2017
- 2017-10-31 CN CN201721435823.2U patent/CN207623395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148748A (en) * | 2023-04-23 | 2023-05-23 | 常州博瑞电力自动化设备有限公司 | DC voltage divider calibration method and system |
| CN116148748B (en) * | 2023-04-23 | 2023-09-29 | 常州博瑞电力自动化设备有限公司 | DC voltage divider calibration method and system |
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