CN204405728U - A kind of arrester discharge counter - Google Patents

A kind of arrester discharge counter Download PDF

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Publication number
CN204405728U
CN204405728U CN201520102291.5U CN201520102291U CN204405728U CN 204405728 U CN204405728 U CN 204405728U CN 201520102291 U CN201520102291 U CN 201520102291U CN 204405728 U CN204405728 U CN 204405728U
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China
Prior art keywords
circuit
discharge counter
persistent current
arrester
movement counting
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CN201520102291.5U
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Chinese (zh)
Inventor
蔡汉生
贾磊
赵冬一
胡上茂
王家军
刘刚
陈喜鹏
施健
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JINGUAN ELECTRIC Co.,Ltd.
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NANYANG JINGUAN ELECTRIC CO Ltd
Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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Abstract

The utility model discloses a kind of arrester discharge counter, comprise shell, in described shell, arrange persistent current indicating circuit, movement counting indicating circuit and power circuit, power circuit is connected with persistent current indicating circuit, movement counting indicating circuit respectively.The utility model arrester discharge counter can realize record steep wave shortwave tail and multiple thunderbolt action current movement counting and the monitoring of lightning arrester persistent current, thus reliably ensure that and provide real Data support to system operation situation, lightning arrester operational application.

Description

A kind of arrester discharge counter
Technical field
The utility model relates to AC transmission system lightning arrester electric discharge counting technology, more particularly, relates to a kind of arrester discharge counter.
Background technology
As everyone knows; in AC transmission system, lightning arrester is important proterctive equipment, and it is parallel in circuit; for preventing busbar voltage from making relevant device damage because thunder and lightning, operation etc. are too high, and discharge counter is used to a kind of High-Voltage Electrical Appliances of monitoring lightning arrester discharge action.
At present for the discharge counter of AC transmission system lightning arrester, usually two kinds of structures are had: (1) one adopts resistor disc to shunt voltage-limiting element as big current, and the small area analysis separated is for driving the arrester discharge counter of message register, utilize electromagnetic system reometer as persistent current indicating gauge meter.The major defect of the discharge counter of this kind of structure has different lower limit action currents for lightning arrester discharge current duration difference, the counter action electric current that discharges under steep wave shortwave tail action current is higher, and cannot record the action frequency of lightning arrester under multiple thunderbolt.(2) another kind of structure utilizes undesirable mutual electromagnetic inductance principle, and arrester action current and persistent current are changed by current transformer, and accumulator provides energy, solar recharging, electronic circuit process, numerical count, measurement, liquid crystal instrument reading.The major defect of the discharge counter of this kind of structure is that liquid crystal watch meter cannot use at low ambient temperatures, and cannot clear reading table meter registration under slightly strong sunlight, and adopting LED table meter to need energy more, energy shortage under continuous rainy weather, the life of storage battery is too short.
Summary of the invention
The purpose of this utility model is: provide a kind of arrester discharge counter, reliably can record the action situation of lightning arrester under multiple thunderbolt and different and have identical lower limit action current for lightning arrester discharge current duration.
To achieve these goals, the utility model provides a kind of arrester discharge counter, comprise shell, in described shell, arrange persistent current indicating circuit, movement counting indicating circuit and power circuit, power circuit is connected with persistent current indicating circuit, movement counting indicating circuit respectively.
Improve as one of the present utility model, described persistent current indicating circuit comprises the zero-flux current transformer, persistent current treatment circuit, the persistent current indicating gauge meter that connect successively, the persistent current signal that persistent current processing circuit processes zero-flux current transformer exports, by persistent current instruction instrument reading lightning arrester persistent current effective value.
Improve as one of the present utility model, described movement counting indicating circuit comprises the Rogowski coil, movement counting treatment circuit and the movement counting indicating gauge that connect successively, the action current signal that movement counting processing circuit processes Rogowski coil exports, by movement counting indicating gauge instruction lightning arrestor movement number of times.
Improve as one of the present utility model, described power circuit comprises the electric power management circuit, energy storage device and the solar panel that connect successively, solar panel gathers sun power and is converted to electrical power storage in energy storage device by electric power management circuit, and electric power management circuit converts electrical energy into described persistent current indicating circuit and described movement counting indicating circuit institute energy requirement simultaneously.
Improve as one of the present utility model, described persistent current indicating circuit comprises the zero-flux current transformer, persistent current treatment circuit, the persistent current indicating gauge meter that connect successively, described movement counting indicating circuit comprises the Rogowski coil, movement counting treatment circuit and the movement counting indicating gauge that connect successively, described power circuit comprises the electric power management circuit, energy storage device and the solar panel that connect successively, and described energy storage device is connected with described persistent current treatment circuit, movement counting treatment circuit respectively.
Improve as one of the present utility model, described discharge counter also comprises a bonding conductor, and a described bonding conductor is arranged on the postmedian of discharge counter, and runs through the upper and lower of shell.
Improve as one of the present utility model, described zero-flux current transformer, Rogowski coil are set in the outside of a described bonding conductor respectively.
Improve as one of the present utility model, described arrester discharge counter adopts fixed installation mode, is arranged on bottom lightning arrester.
Improve as one of the present utility model, described solar panel is fixed on support for installation of lighning arrestor and aims in solar direction.
Compared with prior art, the utility model arrester discharge counter, record steep wave shortwave tail and multiple thunderbolt action current movement counting and lightning arrester persistent current can be realized monitor, thus reliably ensure that and provide real Data support to system operation situation, lightning arrester operational application, and by current transformer collection signal, with high-pressure system without electrical connection, without residual voltage, without explosion danger, applied widely, safe and reliable to operation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, structure of the present utility model and Advantageous Effects thereof are described in detail.
Fig. 1 is the schematic block circuit diagram of the utility model arrester discharge counter.
Embodiment
In order to make goal of the invention of the present utility model, technical scheme and Advantageous Effects thereof more clear, below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.Should be understood that, the embodiment described in this instructions is only used to explain the utility model, is not intended to limit the utility model.
Lightning arrester discharge method of counting comprises the steps: that (1) collects sun power and is converted to electrical power storage, by the electric energy of storage by converting driving power to; (2) lightning arrester persistent current is processed obtain proportional secondary current signal, described secondary current signal is processed further and obtains and lightning arrester persistent current effective value DC current signal one to one, utilize described DC current signal to indicate the persistent current of lightning arrester; (3) arrester action current is processed obtain proportional pulse voltage signal, described pulse voltage signal obtains exceeding the pulse counting signal of threshold value setting after treatment and is stored in register, and described pulse counting signal indicates the action frequency of lightning arrester under the coordination of clock signal.
Refer to Fig. 1, according to said method, design the utility model arrester discharge counter, comprise zero-flux current transformer 1, Rogowski coil 2, persistent current treatment circuit 3, persistent current indicating gauge meter 4, movement counting treatment circuit 5, movement counting indicating gauge 6, solar panel 7, electric power management circuit 8, energy storage device 9, bonding conductor 10, shell 11, an insulating sleeve 12.Zero-flux current transformer, persistent current treatment circuit, persistent current indicating gauge meter connects to form persistent current indicating circuit successively, Rogowski coil, movement counting treatment circuit and movement counting instruction connect to form movement counting indicating circuit successively, one time bonding conductor 10 is arranged on arrester discharge counter postmedian, run through arrester discharge counter upper and lower, zero-flux current transformer 1, Rogowski coil 2 is enclosed within a bonding conductor outside, persistent current treatment circuit 3 processes the persistent current signal that zero-flux current transformer exports, lightning arrester persistent current effective value is indicated by persistent current indicating gauge meter 4, movement counting treatment circuit 5 processes the action current signal that Rogowski coil 2 exports, lightning arrestor movement number of times is indicated by movement counting indicating gauge 6, solar panel 7 gathers sun power and is converted to electrical power storage in energy storage device 9 by electric power management circuit 8, electric power management circuit 8 converts electrical energy into persistent current treatment circuit 3 and movement counting treatment circuit 5 energy requirements simultaneously.
The utility model arrester discharge counter utilizes solar panel to collect sun power, is converted to electrical power storage in energy storage device; The electric energy in energy storage device is converted to signal transacting, table meter driving power by power circuit; Utilize zero-flux current transformer, obtain the secondary current signal proportional with lightning arrester persistent current; Secondary current signal, under the process of persistent current treatment circuit, obtains and lightning arrester persistent current effective value DC current signal one to one; DC current signal is by the persistent current of electromagnetic system persistent current instruction instrument reading lightning arrester; Utilize Rogowski coil, obtain the pulse voltage signal proportional with arrester action current; Pulse voltage signal, after the process of movement counting treatment circuit, obtains the pulse counting signal exceeding threshold value setting, is stored in register; Pulse counting signal, under the coordination of clock signal, indicates the action frequency of lightning arrester by movement counting indicating gauge.The utility model adopts electric counter circuit, limit by count frequency without message register, high-speed counting can be realized, and employing voltage comparator, not by action current energy affect, can realize not affecting by lightning arrester discharge current duration, therefore reliably can record the action situation of lightning arrester under multiple thunderbolt and different and there is identical lower limit action current for lightning arrester discharge current duration.
The utility model arrester discharge counter adopts fixed installation mode, is arranged on bottom lightning arrester, and solar panel is fixed on support for installation of lighning arrestor and aims in solar direction, and volume is little, and making and installation is convenient, and overall performance is excellent.
Verify further below in conjunction with the functional effect of example to the utility model arrester discharge counter.
Three adopt arrester discharge counter test product of the present utility model, and movement counting current threshold is set as 50A, charge 1 hour, carry out performance test in indoor under sunshine.
To be connected at 35kV protective condenser lightning arrester low pressure end after discharge counter earth terminal serial connection digital multimeter; digital multimeter is utilized to monitor lightning arrester persistent current; power-frequency voltage is applied to lightning arrester; observe the instruction of discharge counter persistent current and digital multimeter registration; both are carried out record; under the different power-frequency voltage of applying, both record data are as following table.
Sequence number Lightning arrester applies voltage Discharge counter persistent current indicates Digital multimeter registration
1 20kV 0.40mA 0.394mA
2 25kV 0.50mA 0.503mA
3 29.5kV 0.60mA 0.605mA
4 34kV 0.70mA 0.708mA
5 38.5kV 0.80mA 0.812mA
Discharge counter is applied to the dash current of different wave, different amplitude, observe the counting situation of discharge counter, under the discharge current effect of different wave, the count-Current of discharge counter is all at 45 ~ 55A.
Because the multiple thunderbolt of lightning arrester cannot be simulated in testing laboratory, simulation test is carried out to counting unit circuit, remove Rogowski coil part, utilize group pulse generator pulse voltage signal treatment circuit input end input pulse voltage signal, checking discharge counter record continuous impulse ability, discharge counter can realize less than 8 number of pulses that reliable recording impulse frequency is 200Hz.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.

Claims (9)

1. an arrester discharge counter, comprises shell, it is characterized in that, in described shell, arrange persistent current indicating circuit, movement counting indicating circuit and power circuit, power circuit is connected with persistent current indicating circuit, movement counting indicating circuit respectively.
2. arrester discharge counter according to claim 1, it is characterized in that, described persistent current indicating circuit comprises the zero-flux current transformer, persistent current treatment circuit, the persistent current indicating gauge meter that connect successively, the persistent current signal that persistent current processing circuit processes zero-flux current transformer exports, by persistent current instruction instrument reading lightning arrester persistent current effective value.
3. arrester discharge counter according to claim 1, it is characterized in that, described movement counting indicating circuit comprises the Rogowski coil, movement counting treatment circuit and the movement counting indicating gauge that connect successively, the action current signal that movement counting processing circuit processes Rogowski coil exports, by movement counting indicating gauge instruction lightning arrestor movement number of times.
4. arrester discharge counter according to claim 1, it is characterized in that, described power circuit comprises the electric power management circuit, energy storage device and the solar panel that connect successively, solar panel gathers sun power and is converted to electrical power storage in energy storage device by electric power management circuit, and electric power management circuit converts electrical energy into described persistent current indicating circuit and movement counting indicating circuit institute energy requirement simultaneously.
5. arrester discharge counter according to claim 1, it is characterized in that, described persistent current indicating circuit comprises the zero-flux current transformer, persistent current treatment circuit, the persistent current indicating gauge meter that connect successively, described movement counting indicating circuit comprises the Rogowski coil, movement counting treatment circuit and the movement counting indicating gauge that connect successively, described power circuit comprises the electric power management circuit, energy storage device and the solar panel that connect successively, and described energy storage device is connected with described persistent current treatment circuit, movement counting treatment circuit respectively.
6. arrester discharge counter according to claim 5, is characterized in that, described discharge counter also comprises a bonding conductor, and a described bonding conductor is arranged on the postmedian of discharge counter, and runs through the upper and lower of shell.
7. arrester discharge counter according to claim 6, is characterized in that, described zero-flux current transformer, Rogowski coil are set in the outside of a described bonding conductor respectively.
8. arrester discharge counter according to claim 1, is characterized in that, described arrester discharge counter adopts fixed installation mode, is arranged on bottom lightning arrester.
9. arrester discharge counter according to claim 4, is characterized in that, described solar panel is fixed on support for installation of lighning arrestor and aims in solar direction.
CN201520102291.5U 2015-02-12 2015-02-12 A kind of arrester discharge counter Active CN204405728U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104635025A (en) * 2015-02-12 2015-05-20 南方电网科学研究院有限责任公司 Discharge counter and discharge counting method for arrester
CN106645901A (en) * 2015-10-28 2017-05-10 温州益坤电气有限公司 Residual-voltage-free discharge counter and discharge counting method
CN110161304A (en) * 2019-05-27 2019-08-23 国网浙江省电力有限公司电力科学研究院 A kind of multiple thunder acts on the calculation method of lower leakage conductor absorption energy and residual voltage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104635025A (en) * 2015-02-12 2015-05-20 南方电网科学研究院有限责任公司 Discharge counter and discharge counting method for arrester
CN106645901A (en) * 2015-10-28 2017-05-10 温州益坤电气有限公司 Residual-voltage-free discharge counter and discharge counting method
CN110161304A (en) * 2019-05-27 2019-08-23 国网浙江省电力有限公司电力科学研究院 A kind of multiple thunder acts on the calculation method of lower leakage conductor absorption energy and residual voltage
CN110161304B (en) * 2019-05-27 2021-07-06 国网浙江省电力有限公司电力科学研究院 Method for calculating absorbed energy and residual voltage of line arrester under action of multiple lightning

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C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee after: China Southern Power Grid Research Institute Co.,Ltd.

Patentee after: CSG POWER GRID TECHNOLOGY RESEARCH CENTER

Patentee after: JINGUAN ELECTRIC Co.,Ltd.

Address before: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee before: China Southern Power Grid Research Institute Co.,Ltd.

Patentee before: CSG POWER GRID TECHNOLOGY RESEARCH CENTER

Patentee before: NANYANG JINGUAN ELECTRIC Co.,Ltd.

TR01 Transfer of patent right

Effective date of registration: 20210723

Address after: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee after: China Southern Power Grid Research Institute Co.,Ltd.

Patentee after: JINGUAN ELECTRIC Co.,Ltd.

Address before: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee before: China Southern Power Grid Research Institute Co.,Ltd.

Patentee before: CSG POWER GRID TECHNOLOGY RESEARCH CENTER

Patentee before: JINGUAN ELECTRIC Co.,Ltd.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right