CN105676036A - Current source smart grid transformer substation relay protection testing device - Google Patents
Current source smart grid transformer substation relay protection testing device Download PDFInfo
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- CN105676036A CN105676036A CN201610160025.7A CN201610160025A CN105676036A CN 105676036 A CN105676036 A CN 105676036A CN 201610160025 A CN201610160025 A CN 201610160025A CN 105676036 A CN105676036 A CN 105676036A
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- inductance
- port
- electric capacity
- current source
- switching value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses a current source smart grid transformer substation relay protection testing device, the testing device comprises a shell and an internal circuit, an optical serial port, an optical network port and a first switching value input port are arranged on a front panel of the shell, a switching value output port, a second switching input port, an ethernet port, a power supply interface, a power switch, a heat dissipation window and an electrostatic grounding port are arranged on a rear panel of the shell, and a 16 path signal output port is arranged on an upper panel of the shell. According to the invention, a plurality of ports are arranged on the front panel, the rear panel and the upper panel of the shell of the testing device, the use requirements can be met, the multiple test scene requirements can be met, the current source is adopted to supply the electricity, the output is more stable, the volume of the voltage source in prior art can be effectively reduced, then the volume of the testing device is reduced, the weight is lost, the device is easier to carry than before, the device adopts a shell made from aluminium magnesium alloy with good heat dissipation capacity, and the shell is convenient for heat dissipation.
Description
Technical field
The present invention relates to a kind of current source intelligent grid substation relay protection tester.
Background technology
China is vast in territory, in order to meet the various places people's need for electricity, need to carry out the long-range conveying of electric power, in order to reduce the damage of electric power in course of conveying, normally adopt high pressure, EHV transmission technology to carry out electric power conveying, export and need transformer station's boosted voltage at electric power, need transformer station to reduce voltage in destination, thereby need a large amount of transformer stations. In transformer substation construction process, need to configure corresponding relay protection circuit or device, in order to understand the duty of protective relaying device, need to test protective relaying device, now need to use relay-protection tester. But the ports such as the input and output of existing relay-protection tester very little, is difficult to practical requirement.
One employing " Switching Power Supply+linear amplifier " pattern of voltage source in relay-protection tester device at present; this pattern has some superiority in the time that small-signal is exported; but in the time of high-power output, there is defect; efficiency is low; only has 30-50%; and linear amplifier exists the debugging problem of operating points at different levels; be unfavorable for producing in enormous quantities; if current source adopts " Switching Power Supply+switching amplifier " pattern; can raise the efficiency 75-90%; and switching amplifier one do not need complicated debugging normally to work, be particularly suitable for large-scale production. But the design of switching amplifier output filter circuit is very important, improper if the circuit of design and parameter arrange, can there is switching signal and electromagnetic interference signal at the output of amplifier, cause output waveform variation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art; a kind of current source intelligent grid substation relay protection tester is provided; this tester has multiple interfaces; meet multi-test scene demand, adopt current source to power, export more stable; effectively dwindle the volume of existing voltage source simultaneously; tester volume is reduced, and weight saving, is more conducive to carrying.
The object of the invention is to be achieved through the following technical solutions: current source intelligent grid substation relay protection tester, it comprises housing and internal circuit, on the front panel of described housing, be provided with light serial ports, light network interface and the first switching value input port, light serial ports Wei12 road, be arranged on the top of front panel, light network interface Wei12 road is arranged on the lower left side of light serial ports, and the first switching value input port is 4 pairs, is arranged on the right side, bottom of light serial ports; On the rear board of housing, be provided with switching value output port, second switch amount input port, Ethernet interface, power interface, power switch, radiator window and electrostatic grounding port, switching value output port is 8 pairs, be arranged on the upper left quarter of rear board, second switch amount input port is 4 pairs, be arranged side by side in switching value output port bottom with Ethernet interface, power interface, power switch, radiator window and electrostatic grounding port are arranged on the right part of rear board; On the top panel of housing, be provided with 16 road signal output ports;
Described internal circuit comprises current source circuit, and current source circuit comprises H bridge switch amplifier, and the second triode of H bridge switch amplifier, the mid point of the 4th triode connect the first inductance, then the 3rd inductance of connecting is to output; The first triode of H bridge switch amplifier, the mid point of the 3rd triode connect the second inductance, then the other end of the 4th inductance to output of connecting; The first electric capacity in parallel between the tie point of the tie point of the first inductance, the 3rd inductance and the second inductance, the 4th inductance, output second electric capacity in parallel of the tie point of the first inductance, the 3rd inductance and the second inductance, the 4th inductance; The tie point of the first inductance and the 3rd inductance connects the 4th electric capacity to the first resistance; The tie point of the second inductance and the 4th inductance connects the 3rd electric capacity to the first resistance, the other end ground connection of the first resistance; The tie point of the 3rd inductance and the second electric capacity connects the 6th electric capacity, then connects the second resistance to ground; The tie point of the 4th inductance and the second electric capacity connects the 5th electric capacity, the common point of the 5th another termination of electric capacity the 6th electric capacity and the second resistance.
The below of described switching value output port is also provided with GPS sync cap and pulse per second (PPS) output port, and GPS sync cap is all connected with internal circuit with pulse per second (PPS) output port.
Four jiaos of the bottoms of described housing are provided with leg, and leg is rubber feet.
Described housing is the good almag housing of heat radiation.
The invention has the beneficial effects as follows: the invention provides a kind of current source intelligent grid substation relay protection tester; this tester is provided with abundant interface at front panel, rear board and the top panel of housing; can meet the needs of use; meet multi-test scene demand; adopt current source to power; export more stable; effectively dwindle the volume of existing voltage source simultaneously; tester volume is reduced; weight saving; more be conducive to carrying, adopt the good almag of heat radiation to produce housing, be convenient to heat radiation.
Brief description of the drawings
Fig. 1 is tester complete machine schematic diagram;
Fig. 2 is tester front panel schematic diagram;
Fig. 3 is tester side panel schematic diagram;
Fig. 4 is current source circuit schematic diagram;
In figure, 1-light serial ports, 2-light network interface, 3-housing, 4-the first switching value input port, 5-switching value output port, 6-second switch amount input port, 7-GPS sync cap, 8-Ethernet interface, 9-radiator window, 10-power interface, 11-power switch, 12-signal output port, 13-pulse per second (PPS) output port, 14-electrostatic grounding port, 15-leg, Q1-the first triode, Q2-the second triode, Q3-the 3rd triode, Q4-the 4th triode, R1-the first resistance, R2-the second resistance, L1-the first inductance, L2-the second inductance, L3-the 3rd inductance, L4-the 4th inductance, C1-the first electric capacity, C2-the second electric capacity, C3-the 3rd electric capacity, C4-the 4th electric capacity, C5-the 5th electric capacity, C6-the 6th electric capacity.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1 to Figure 3, current source intelligent grid substation relay protection tester, it comprises housing 3 and internal circuit, on the front panel of described housing 3, be provided with light serial ports 1, light network interface 2 and the first switching value input port 4, light serial ports 1 Wei12 road, is arranged on the top of front panel, and light network interface 2 Wei12 roads are arranged on the lower left side of light serial ports 1, the first switching value input port 4 is 4 pairs, is arranged on the right side, bottom of light serial ports 1; On the rear board of housing 3, be provided with switching value output port 5, second switch amount input port 6, Ethernet interface 8, power interface 10, power switch 11, radiator window 9 and electrostatic grounding port one 4, switching value output port 5 is 8 pairs, be arranged on the upper left quarter of rear board, second switch amount input port 6 is 4 pairs, be arranged side by side in switching value output port 5 bottoms with Ethernet interface 8, power interface 10, power switch 11, radiator window 9 and electrostatic grounding port one 4 are arranged on the right part of rear board; On the top panel of housing 3, be provided with 16 road signal output ports 12;
Described internal circuit comprises current source circuit, and current source circuit comprises H bridge switch amplifier, and as shown in Figure 4, the mid point of the second triode Q2, the 4th triode Q3 of H bridge switch amplifier connects the first inductance L 1, then the 3rd inductance L 3 of connecting is to output; The mid point of the first triode Q1, the 3rd triode Q3 of H bridge switch amplifier connects the second inductance L 2, then the other end of the 4th inductance L 4 to output of connecting; The first capacitor C 1, the first inductance L 1 in parallel, the tie point of the 3rd inductance L 3 and output second capacitor C 2 in parallel of the second inductance L 2, the 4th inductance L 4 between the tie point of the tie point of the first inductance L 1, the 3rd inductance L 3 and the second inductance L 2, the 4th inductance L 4; The tie point of the first inductance L 1 and the 3rd inductance L 3 connects the 4th capacitor C 4 to first resistance R 1; The tie point of the second inductance L 2 and the 4th inductance L 4 connects the other end ground connection of the 3rd capacitor C 3 to first resistance R 1, the first resistance R 1; The tie point of the 3rd inductance L 3 and the second capacitor C 2 connects the 6th capacitor C 6, then connects the second resistance R 2 to ground; The tie point of the 4th inductance L 4 and the second capacitor C 2 connects the common point of the 5th capacitor C 5, the five capacitor C 5 another termination the 6th capacitor C 6 and the second resistance R 2.
The below of described switching value output port 5 is also provided with GPS sync cap 7 and pulse per second (PPS) output port 13, and GPS sync cap 7 is all connected with internal circuit with pulse per second (PPS) output port 13.
Four jiaos of the bottoms of described housing 3 are provided with leg 15, and leg 15 is rubber feet.
Described housing 3 is the good almag housing of heat radiation.
Relay-protection tester of the present invention is provided with abundant interface at front panel, rear board and the top panel of housing; can meet the needs of use; meet multi-test scene demand, adopt current source to power, export more stable; effectively dwindle the volume of existing voltage source simultaneously; tester volume is reduced, and weight saving, is more conducive to carrying; adopt the good almag of heat radiation to produce housing, be convenient to heat radiation.
Claims (4)
1. current source intelligent grid substation relay protection tester, it comprises housing (3) and internal circuit, it is characterized in that: on the front panel of described housing (3), be provided with light serial ports (1), light network interface (2) and the first switching value input port (4), light serial ports (1) Wei12 road, be arranged on the top of front panel, light network interface (2) Wei12 road is arranged on the lower left side of light serial ports (1), and the first switching value input port (4) is 4 pairs, is arranged on the right side, bottom of light serial ports (1), on the rear board of housing (3), be provided with switching value output port (5), second switch amount input port (6), Ethernet interface (8), power interface (10), power switch (11), radiator window (9) and electrostatic grounding port (14), switching value output port (5) is 8 pairs, be arranged on the upper left quarter of rear board, second switch amount input port (6) is 4 pairs, be arranged side by side in switching value output port (5) bottom with Ethernet interface (8), power interface (10), power switch (11), radiator window (9) and electrostatic grounding port (14) are arranged on the right part of rear board, on the top panel of housing (3), be provided with 16 road signal output ports (12),
Described internal circuit comprises current source circuit, and current source circuit comprises H bridge switch amplifier, and second triode (Q2) of H bridge switch amplifier, the mid point of the 4th triode (Q3) connect the first inductance (L1), then the 3rd inductance (L3) of connecting is to output; First triode (Q1) of H bridge switch amplifier, the mid point of the 3rd triode (Q3) connect the second inductance (L2), then the other end of the 4th inductance (L4) to output of connecting; The first electric capacity in parallel (C1) between the tie point of the tie point of the first inductance (L1), the 3rd inductance (L3) and the second inductance (L2), the 4th inductance (L4), output second electric capacity in parallel (C2) of the tie point of the first inductance (L1), the 3rd inductance (L3) and the second inductance (L2), the 4th inductance (L4); The first inductance (L1) connects the 4th electric capacity (C4) to the first resistance (R1) with the tie point of the 3rd inductance (L3); The second inductance (L2) connects the 3rd electric capacity (C3) to the first resistance (R1), the other end ground connection of the first resistance (R1) with the tie point of the 4th inductance (L4); The 3rd inductance (L3) connects the 6th electric capacity (C6) with the tie point of the second electric capacity (C2), then connects the second resistance (R2) to ground; The 4th inductance (L4) connects the 5th electric capacity (C5) with the tie point of the second electric capacity (C2), the common point of the 5th another termination of electric capacity (C5) the 6th electric capacity (C6) and the second resistance (R2).
2. current source intelligent grid substation relay protection tester according to claim 1; it is characterized in that: the below of described switching value output port (5) is also provided with GPS sync cap (7) and pulse per second (PPS) output port (13), GPS sync cap (7) is all connected with internal circuit with pulse per second (PPS) output port (13).
3. current source intelligent grid substation relay protection tester according to claim 1, is characterized in that: four jiaos of the bottoms of described housing (3) are provided with leg (15), and leg (15) is rubber feet.
4. current source intelligent grid substation relay protection tester according to claim 1, is characterized in that: described housing (3) is the good almag housing of heat radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160025.7A CN105676036A (en) | 2016-03-21 | 2016-03-21 | Current source smart grid transformer substation relay protection testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160025.7A CN105676036A (en) | 2016-03-21 | 2016-03-21 | Current source smart grid transformer substation relay protection testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105676036A true CN105676036A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610160025.7A Pending CN105676036A (en) | 2016-03-21 | 2016-03-21 | Current source smart grid transformer substation relay protection testing device |
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| CN (1) | CN105676036A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830138U (en) * | 2010-10-21 | 2011-05-11 | 三泰电力技术（南京）有限公司 | Current source of relay protection measurement instrument |
| CN201993445U (en) * | 2011-01-25 | 2011-09-28 | 衡水供电公司 | Intelligent tester for switch trip logic time |
| CN203894351U (en) * | 2014-06-09 | 2014-10-22 | 武汉凯默电气有限公司 | Hand-held relay protection testing device for intelligent transformer station |
| CN204086887U (en) * | 2014-09-12 | 2015-01-07 | 杭州霍夫电力自动化设备有限公司 | The Microcomputer Protection with relay protection and switch cubicle controlling functions surveys aobvious device |
| CN204537575U (en) * | 2015-02-16 | 2015-08-05 | 合肥金永电气有限公司 | Portable relay protection analogue means |
| CN204649929U (en) * | 2015-06-09 | 2015-09-16 | 国网辽宁省电力有限公司营口供电公司 | Miniature relay protection brake switch tester |
| CN205679694U (en) * | 2016-03-21 | 2016-11-09 | 成都天进仪器有限公司 | Current source intelligent grid substation relay protection tester |
-
2016
- 2016-03-21 CN CN201610160025.7A patent/CN105676036A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830138U (en) * | 2010-10-21 | 2011-05-11 | 三泰电力技术（南京）有限公司 | Current source of relay protection measurement instrument |
| CN201993445U (en) * | 2011-01-25 | 2011-09-28 | 衡水供电公司 | Intelligent tester for switch trip logic time |
| CN203894351U (en) * | 2014-06-09 | 2014-10-22 | 武汉凯默电气有限公司 | Hand-held relay protection testing device for intelligent transformer station |
| CN204086887U (en) * | 2014-09-12 | 2015-01-07 | 杭州霍夫电力自动化设备有限公司 | The Microcomputer Protection with relay protection and switch cubicle controlling functions surveys aobvious device |
| CN204537575U (en) * | 2015-02-16 | 2015-08-05 | 合肥金永电气有限公司 | Portable relay protection analogue means |
| CN204649929U (en) * | 2015-06-09 | 2015-09-16 | 国网辽宁省电力有限公司营口供电公司 | Miniature relay protection brake switch tester |
| CN205679694U (en) * | 2016-03-21 | 2016-11-09 | 成都天进仪器有限公司 | Current source intelligent grid substation relay protection tester |
Non-Patent Citations (1)
| Title |
|---|
| 成都天进仪器有限公司: "MF3000A光数字继电保护测试仪", 《HTTP://WWW.TESIENT.CN》 * |
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| PB01 | Publication | ||
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Application publication date: 20160615 |