CN108279345A - A kind of electric substation's power transmission verifying attachment - Google Patents
A kind of electric substation's power transmission verifying attachment Download PDFInfo
- Publication number
- CN108279345A CN108279345A CN201810113982.3A CN201810113982A CN108279345A CN 108279345 A CN108279345 A CN 108279345A CN 201810113982 A CN201810113982 A CN 201810113982A CN 108279345 A CN108279345 A CN 108279345A
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- phase
- power transmission
- electric substation
- power supply
- verifying attachment
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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
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- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of electric substation's power transmission verifying attachments, are related to electric substation's power transmission and examine field.The device includes the Three-Phase Voltage Regulator in parallel with the concatenated three-phase power switch of temporary source, three-phase electricity flow table and at least 1 tunnel, include concatenated three-phase regulator, the normally opened auxiliary contact of contactor, three-phase isolation boosting transformer and three-phase voltage meter per road Three-Phase Voltage Regulator, it connects with three-phase electricity flow table after the input terminal parallel connection of all Three-Phase Voltage Regulators, the output end of all Three-Phase Voltage Regulators is the output end of electric substation's power transmission verifying attachment.The present invention can carry out experiment to the power supply system in electric substation and power transmission examined on the basis of not influencing temporary source；When carrying out no-load test to the power supply system in electric substation, it is less prone to the situation of temporary source tripping；When carrying out whole power transmission inspection to the electric power supply system equipment in electric substation, electric power supply system equipment voltage can be met and show demand, facilitate and judge power supply system global reliability.
Description
Technical field
The present invention relates to electric substation's power transmissions to examine field, and in particular to a kind of electric substation's power transmission verifying attachment.
Background technology
With the promotion of high ferro and subway construction speed, power supply system (such as electric substation in the electric substation of high ferro and subway
Interior high-pressure system, straight-flow system and commutation system) also increasingly attract attention.In high ferro and subway construction project, power transformation
Power supply system is before putting into operation in institute, and testing crew need to test power supply system (such as no-load test), work progress
In, the subsequent construction (being electrically connected between such as each equipment, cable installation etc.) of power supply system is also had after the completion of monomer assays, this
When pole it is necessary to power supply system carry out overall inspection, to ensure that power supply system can normally come into operation.
Therefore power supply system has the following defects respectively in experiment and inspection in existing electric substation：
(1) at present to the electrical equipment of power supply system carry out primary power transmission detection when (such as no-load test), test apparatus
It is powered by temporary source, and the earth leakage protective device of the two of temporary source, three-level distribution box tends not to meet electric substation's height
Electricity demanding on the hicaps such as pressure, direct current and low pressure, because the earth leakage protective value of temporary source is low and sensitive, with test apparatus pair
When electric substation's related system carries out primary unloaded detection, electric substation's temporary source is easily caused to trip, or even " jump of bypassing the immediate leadership " occurs
The case where (upper layer temporary source is caused to trip), " jump of bypassing the immediate leadership " may cause to have a power failure on a large scale, and temporary source trips and " gets over
Grade is jumped " it is both needed to many times and is repaired, working efficiency is not only reduced, affects other construction personnel's operations, and very not
Safety.
(2) currently, for the power supply system overall inspection in electric substation, conventional method be by high voltage supply system directly with
The drawbacks of electric substation's temporary source (380V) is connected to test, this method is because detection brownout leads to high voltage supply
System can not normally show operating voltage or lower voltage cannot be satisfied straight-flow system and adopt after traction rectifier unit transformation
Sample requirement, and then can not judge whether electric power supply system equipment can normally come into operation, for example, the standard normally to come into operation it
One is correct for the circuit connection of power supply system, and for it normally cannot show the electric power supply system equipment of operating voltage, it can not
Judge the correctness of its circuit connection.
(3) 400V low-tension switch cabinets lack special instrument when logic is debugged in electric substation, due to needing 2 road power supplys to carry out
Switching is converted, and existing detection scheme is that 400V switchgears are connected to adjust with temporary source by homemade 2 air switches
Examination, field connection trouble, working efficiency are relatively low and dangerous.
Invention content
In view of the deficiencies in the prior art, present invention solves the technical problem that being：How temporary source is not being influenced
On the basis of, no-load test and power supply system overall inspection are carried out to the power supply system in electric substation.The present invention is in electric substation
Power supply system carry out no-load test when, be less prone to temporary source tripping situation, work efficiency is high, securely and reliably；To becoming
Electricity in electric power supply system equipment when carrying out whole power transmission and examining, electric power supply system equipment voltage can be met and show demand, conveniently sentenced
Cut-off electric system global reliability.
To achieve the above objectives, electric substation's power transmission verifying attachment provided by the invention, the input terminal of the device and interim electricity
Source-series, output end is used to carry out experiment to power supply system and power transmission is examined, which includes and the concatenated three-phase of temporary source
The Three-Phase Voltage Regulator of power switch, three-phase electricity flow table and the parallel connection of at least 1 tunnel includes concatenated per road Three-Phase Voltage Regulator
The normally opened auxiliary contact of three-phase regulator, contactor, three-phase isolation boosting transformer and three-phase voltage meter, all three phase voltage regulatings
It connects with three-phase electricity flow table after the input terminal parallel connection of circuit, the output end of all Three-Phase Voltage Regulators is that electric substation's power transmission is examined
The output end of device.
Based on the above technical solution, the Three-Phase Voltage Regulator is 2 tunnels.
Based on the above technical solution, the output end of the device is inputted using phase three-wire three, and output end uses three-phase
Four lines export.
Based on the above technical solution, which further includes time switch circuit and and Three-Phase Voltage Regulator
The identical contactless contactor circuit of quantity, after the input terminal parallel connection of time switch circuit and all contactless contactor circuits, with 1
Root phase line is connected；The output end of time switch circuit and all contactless contactor circuits passes through 1 normally-closed contact and zero curve phase
Even；Time switch circuit includes that time switch coil and contactor identical with Three-Phase Voltage Regulator quantity are normally opened auxiliary
Contact is helped to connect with time switch coil after all normally opened auxiliary contact parallel connections of contactor；Contactless contactor circuit includes string
Starting switch, shutdown switch and the contactor coil and the normally opened auxiliary contact of the contactor in parallel with starting switch of connection.
Based on the above technical solution, which further includes that instrument shows that power supply circuit, instrument show power supply circuit
One end be connected with 1 phase line, the other end be connected, instrument shows that power supply circuit includes that Switching Power Supply and instrument show charger
Part, Switching Power Supply are used to be converted to the supply voltage of 220V the supply voltage of the instrument power supply device of 5V.
Based on the above technical solution, the model DZ47-63 of the three-phase power switch, rated current 63A,
It is used for：The input switch of temporary source.
Based on the above technical solution, the model SD-25A of the three-phase electricity flow table, is used for：It shows described defeated
Enter the three-phase electricity flow valuve at end.
Based on the above technical solution, the capacity of the three-phase regulator is 3KVA, is used for：Adjustment three is isolated
The output voltage of step-up transformer.
Based on the above technical solution, the capacity of the three-phase isolation boosting transformer is 3KVA, and input voltage is
380V, maximum output voltage 1500V, is used for：Isolation input and output voltage, boost to output voltage.
Based on the above technical solution, the model SD-1500V of the three-phase voltage meter, is used for：Show three-phase
The output voltage values of isolation boosting transformer.
Compared with the prior art, the advantages of the present invention are as follows：
(1) electric substation's power transmission verifying attachment of the invention is set between temporary source and power supply system, electric substation's power transmission
Three-phase isolation boosting transformer in verifying attachment, can be by the input voltage of temporary source and for the output electricity of power supply system
Pressure is isolated, so that output voltage does not interfere with temporary source, the i.e. earth leakage protective of output voltage and power supply when working
It is unrelated.Therefore, when electric substation's power transmission verifying attachment of the invention carries out experiment and power transmission inspection to the power supply system in electric substation,
It is capable of the zero curve of good isolation temporary source, is less prone to the situation of temporary source tripping in the prior art, and then not only carry
High working efficiency, and relatively safety.
(2) compared with the prior art normally can not show operating voltage in electric power supply system equipment whole detection, pass through
When the present invention carries out power transmission inspection to electric power supply system equipment, capacity of the invention meets system detectio demand and highest output three-phase
Voltage reaches 1500V, meets each electric power supply system equipment voltage and shows detection demand, can facilitate whether judge electric power supply system equipment
It can normally come into operation.
(3) present invention is that the progress logic debugging of low pressure 400V switchgears carries by the way that the independent Three-Phase Voltage Regulator in 2 tunnels is arranged
Special equipment has been supplied, a large amount of wiring and debug time are not only saved, and has greatly improved the safety of site operation personnel
Property.
Description of the drawings
Fig. 1 is the circuit connection diagram of electric substation's power transmission verifying attachment in the embodiment of the present invention.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and embodiments.
It is shown in Figure 1, electric substation's power transmission verifying attachment in the embodiment of the present invention, the input terminal (three-phase three of the device
Line inputs, A lines, B lines and C lines) it connects with temporary source, (three-phase and four-line exports output end, A lines, B lines, C lines and N lines, and N lines are
Zero curve) for carrying out experiment and power transmission inspection to power supply system.The device include with the concatenated three-phase power switch of temporary source,
Three-phase electricity flow table and the Three-Phase Voltage Regulator of at least 1 tunnel parallel connection include concatenated three phase voltage regulating per road Three-Phase Voltage Regulator
The normally opened auxiliary contact of device, contactor, three-phase isolation boosting transformer and three-phase voltage meter, all Three-Phase Voltage Regulators it is defeated
It connects with three-phase electricity flow table after entering end parallel connection, the output end of all Three-Phase Voltage Regulators is the defeated of electric substation's power transmission verifying attachment
Outlet.
The model DZ47-63 of three-phase power switch, rated current 63A are used for：The input switch of temporary source,
With overcurrent protection function；
The model SD-25A of three-phase electricity flow table, is used for：Show the three-phase electricity flow valuve of input terminal；
The capacity of three-phase regulator is 3KVA, is used to adjust the output voltage of three-phase isolation boosting transformer；
Contactor is used for：For three-phase isolation boosting transformer power transmission；
The capacity of three-phase isolation boosting transformer be 3KVA, input voltage 380V, maximum output voltage 1500V,
For：Isolation input and output voltage, boost to output voltage；
The model SD-1500V of three-phase voltage meter, is used for：Show the output voltage values of three-phase isolation boosting transformer.
Shown in Figure 1, electric substation's power transmission verifying attachment in the present embodiment further includes time switch circuit, Yi Jiyu
(roads Ji Mei contactless contactor circuit is that Three-Phase Voltage Regulator is sent all the way to the identical contactless contactor circuit of Three-Phase Voltage Regulator quantity
Electricity).After the input terminal parallel connection of time switch circuit and all contactless contactor circuits, be connected (the C in Fig. 1 with 1 phase line
Line)；The output end of time switch circuit and all contactless contactor circuits passes through 1 normally-closed contact (timing is set in Fig. 1)
It is connected with zero curve (N lines).
Shown in Figure 1, for time switch circuit for controlling the voltage output time, which includes time switch line
Enclose KS and the normally opened auxiliary contact of contactor identical with Three-Phase Voltage Regulator quantity (i.e. each normally opened auxiliary contact of contactor
It is corresponding with 1 road Three-Phase Voltage Regulator), after all normally opened auxiliary contact parallel connections of contactor, connect with time switch coil KS.It connects
Tentaculum switching circuit include concatenated starting switch, shutdown switch and contactor coil and with the contact of starting switch parallel connection
The normally opened auxiliary contact of device.
Shown in Figure 1, the quantity of Three-Phase Voltage Regulator is voluntarily arranged according to the demand of power supply system, three in the present embodiment
Phase regulating circuit and contactless contactor circuit are 2 tunnels, so as to for 400V logic debugging apparatus in electric substation.In Fig. 1
Contactor K1 and K2 are respectively the normally opened auxiliary contact of contactor of 2 road Three-Phase Voltage Regulators；Connecing in 2 road contactless contactor circuits
The normally opened auxiliary contact of tentaculum are respectively K1-1 and K2-2, and the contactor coil in 2 road contactless contactor circuits is K1 and K2；Timing
The quantity of the normally opened auxiliary contact of contactor in relay circuit is 2 (K1-3 and K2-3)；
Shown in Figure 1, electric substation's power transmission verifying attachment in the present embodiment further includes that instrument shows power supply circuit, instrument
One end of display power supply circuit is connected with 1 phase line (C lines), and the other end is connected with (N lines), and instrument shows that power supply circuit includes opening
Powered-down source and instrument show that power supply device (instrument power supply in figure), Switching Power Supply are used to the supply voltage of 220V being converted to 5V
Instrument power supply device supply voltage.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art,
Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the present invention
Protection domain within.The content not being described in detail in this specification belongs to existing skill well known to professional and technical personnel in the field
Art.
Claims (10)
1. a kind of electric substation's power transmission verifying attachment, the input terminal of the device are connected with temporary source, output end is used for power supply system
System carries out experiment and power transmission is examined, it is characterised in that：The device includes and the concatenated three-phase power switch of temporary source, three-phase electricity
Flow table and the Three-Phase Voltage Regulator of at least 1 tunnel parallel connection include concatenated three-phase regulator, contact per road Three-Phase Voltage Regulator
The input terminal of the normally opened auxiliary contact of device, three-phase isolation boosting transformer and three-phase voltage meter, all Three-Phase Voltage Regulators is in parallel
It connects afterwards with three-phase electricity flow table, the output end of all Three-Phase Voltage Regulators is the output end of electric substation's power transmission verifying attachment.
2. electric substation's power transmission verifying attachment as described in claim 1, it is characterised in that：The Three-Phase Voltage Regulator is 2 tunnels.
3. electric substation's power transmission verifying attachment as described in claim 1, it is characterised in that：The output end of the device uses three-phase three
Line inputs, and output end is exported using three-phase and four-line.
4. electric substation's power transmission verifying attachment as claimed in claim 3, it is characterised in that：The device further includes time switch electricity
Road and contactless contactor circuit identical with Three-Phase Voltage Regulator quantity, time switch circuit and all contactless contactors
After the input terminal parallel connection of circuit, it is connected with 1 phase line；The output end of time switch circuit and all contactless contactor circuits is logical
1 normally-closed contact is crossed with zero curve to be connected；Time switch circuit include time switch coil and with Three-Phase Voltage Regulator number
The identical normally opened auxiliary contact of contactor are measured to connect with time switch coil after all normally opened auxiliary contact parallel connections of contactor；
Contactless contactor circuit includes concatenated starting switch, shutdown switch and contactor coil and in parallel with starting switch connects
The normally opened auxiliary contact of tentaculum.
5. electric substation's power transmission verifying attachment as claimed in claim 3, it is characterised in that：The device further includes instrument display power supply
Circuit, instrument show that one end of power supply circuit is connected with 1 phase line, the other end be connected, instrument display power supply circuit is including opening
Powered-down source and instrument show power supply device, instrument power supply device of the Switching Power Supply for the supply voltage of 220V to be converted to 5V
Supply voltage.
6. such as electric substation's power transmission verifying attachment described in any one of claim 1 to 5, it is characterised in that：The three phase mains is opened
The model DZ47-63 of pass, rated current 63A are used for：The input switch of temporary source.
7. such as electric substation's power transmission verifying attachment described in any one of claim 1 to 5, it is characterised in that：The three-phase electricity flow table
Model SD-25A, be used for：Show the three-phase electricity flow valuve of the input terminal.
8. such as electric substation's power transmission verifying attachment described in any one of claim 1 to 5, it is characterised in that：The three-phase regulator
Capacity be 3KVA, be used for：Adjust the output voltage of three-phase isolation boosting transformer.
9. such as electric substation's power transmission verifying attachment described in any one of claim 1 to 5, it is characterised in that：Described three isolate liter
The capacity of pressure transformer is 3KVA, and input voltage 380V, maximum output voltage 1500V are used for：Isolation input and output
Voltage boosts to output voltage.
10. such as electric substation's power transmission verifying attachment described in any one of claim 1 to 5, it is characterised in that：The three-phase voltage meter
Model SD-1500V, be used for：Show the output voltage values of three-phase isolation boosting transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113982.3A CN108279345B (en) | 2018-02-05 | 2018-02-05 | Power substation power transmission testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113982.3A CN108279345B (en) | 2018-02-05 | 2018-02-05 | Power substation power transmission testing device |
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| Publication Number | Publication Date |
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| CN108279345A true CN108279345A (en) | 2018-07-13 |
| CN108279345B CN108279345B (en) | 2020-12-29 |
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ID=62807676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810113982.3A Active CN108279345B (en) | 2018-02-05 | 2018-02-05 | Power substation power transmission testing device |
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| CN (1) | CN108279345B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537785A (en) * | 2020-05-25 | 2020-08-14 | 国网山西省电力公司营销服务中心 | Three-phase secondary circuit no-load on-line inspection tester |
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| CN2098039U (en) * | 1991-08-12 | 1992-03-04 | 李仁善 | High-voltage test safety control chest |
| CN201173958Y (en) * | 2008-03-31 | 2008-12-31 | 中国第一冶金建设有限责任公司 | Testing transformer pressure regulating control device |
| CN201344958Y (en) * | 2008-12-03 | 2009-11-11 | 江苏银佳企业集团有限公司 | Test bench circuit of capacitance compensation cabinet |
| CN201421677Y (en) * | 2009-05-15 | 2010-03-10 | 郑州万特电气有限公司 | Low-voltage electric energy measuring and training device |
| CN101764409A (en) * | 2009-12-31 | 2010-06-30 | 重庆朗天通讯设备有限公司 | Testing device for voltage and reactive power comprehensive control system |
| CN203537061U (en) * | 2013-10-21 | 2014-04-09 | 天水长城电工开关有限公司 | A debugging power supply universally used by high-voltage switch cabinets and low-voltage switch cabinets |
| CN104793028A (en) * | 2015-04-30 | 2015-07-22 | 中国一冶集团有限公司 | Three-phase multifunctional test power supply device and test method thereof |
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2018
- 2018-02-05 CN CN201810113982.3A patent/CN108279345B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098039U (en) * | 1991-08-12 | 1992-03-04 | 李仁善 | High-voltage test safety control chest |
| CN201173958Y (en) * | 2008-03-31 | 2008-12-31 | 中国第一冶金建设有限责任公司 | Testing transformer pressure regulating control device |
| CN201344958Y (en) * | 2008-12-03 | 2009-11-11 | 江苏银佳企业集团有限公司 | Test bench circuit of capacitance compensation cabinet |
| CN201421677Y (en) * | 2009-05-15 | 2010-03-10 | 郑州万特电气有限公司 | Low-voltage electric energy measuring and training device |
| CN101764409A (en) * | 2009-12-31 | 2010-06-30 | 重庆朗天通讯设备有限公司 | Testing device for voltage and reactive power comprehensive control system |
| CN203537061U (en) * | 2013-10-21 | 2014-04-09 | 天水长城电工开关有限公司 | A debugging power supply universally used by high-voltage switch cabinets and low-voltage switch cabinets |
| CN104793028A (en) * | 2015-04-30 | 2015-07-22 | 中国一冶集团有限公司 | Three-phase multifunctional test power supply device and test method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537785A (en) * | 2020-05-25 | 2020-08-14 | 国网山西省电力公司营销服务中心 | Three-phase secondary circuit no-load on-line inspection tester |
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| Publication number | Publication date |
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| CN108279345B (en) | 2020-12-29 |
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