CN208508525U - A kind of grid-connected power generation system arc light protecting device - Google Patents
A kind of grid-connected power generation system arc light protecting device Download PDFInfo
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- CN208508525U CN208508525U CN201821247581.9U CN201821247581U CN208508525U CN 208508525 U CN208508525 U CN 208508525U CN 201821247581 U CN201821247581 U CN 201821247581U CN 208508525 U CN208508525 U CN 208508525U
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- arc light
- arc
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- generation system
- power generation
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Abstract
The utility model is a kind of grid-connected power generation system arc light protecting device; breaking output port at least there are three; and formation parallel circuit parallel with one another; protection pressing plate is installed on power cabinet; protect the connecting terminal B on pressing plate by cable C and parallel circuit in series, No. 1 port of opening button passes through cable D and parallel circuit in series；Connecting terminal A on protection pressing plate is electrically connected with No. 2 ports；, can be by arc light relay by column foot breaker open operation when if certain of arc probe installation site and many places generate arc light；When overhaul of the equipments simultaneously, protection pressing plate can be disconnected, arc light relay is in an off state, and is avoided and is caused arc light relay maloperation when having and overhauling at arc probe.
Description
Technical field
The utility model relates to electrical power grid protective device field, specifically a kind of grid-connected power generation system arc protection dress
It sets.
Background technique
In China, in, in low-voltage bus bar short trouble, the injury of emphasis equipment and personnel mainly has arclight to cause, electric arc
The main reason for light generates has: artificial origin's misoperation, such as metal tools are forgotten on the busbar of cabinet, the connection of mistake
Deng, the insulation ag(e)ing of equipment normal time section, the factor of the environment such as toy, dust, temperature, humidity, corrosion.However, China
Most of middle voltage bus bars are not provided with quick bus protection, and in In the distribution system of low voltage, arc light accident is to bus, transformer
It causes short distance short trouble to impact, cannot such as cut off in time, switch cabinet of converting station and other equipment failure can be caused, cause tight
The loss of weight and great human casualty accident, and existing some equipment are only with simple transform er backup protection, these protections
Movement speed is slow, without effective prompt, often extends fault clearing time, so that further expansion equipment damage degree, is
Guarantee In the distribution system of low voltage safe and stable operation, needs to configure dedicated protection equipment, is used for quick automatic cut-off failure,
Power off time needed for greatly reducing maintenance of equipment expense and maintenance failure；Enter in equipment cabinet in maintenance personal simultaneously and sets
When standby normal service, arc light relay can not disconnect manually simultaneously, usually cause erroneous judgement.
Utility model content
Against the above technical problems, the utility model technical effect to be achieved, which is to provide, has compared with permanent protective property, behaviour
Make simple, the simple grid-connected power generation system arc light protecting device of structure.
In order to solve the above technical problems, a kind of grid-connected power generation system arc light protecting device described in the utility model, packet
Parantheses optical relay, arc probe, power cabinet, include on the arc light relay arc light interface, breaking output port, anode,
Cathode, the arc probe are connect with the arc light interface by optical fiber, be equipped on the power cabinet breaker open operation coil,
Opening button, the port A1 of the breaker open operation coil are electrically connected with No. 2 ports of the opening button, the open circuit output
Port at least there are three, and formation parallel circuit parallel with one another is equipped with protection pressing plate, the protection pressing plate on the power cabinet
On connecting terminal B by cable C and the parallel circuit in series, No. 1 port of the opening button by cable D with
The parallel circuit in series；Connecting terminal A on the protection pressing plate is electrically connected with No. 2 ports.
Further, the positive electrode and negative electrode of the arc light relay pass through cable A respectively, cable B is connected to terminals
At son row's power supply.
Further, the arc light interface, the arc probe are consistent with the breaking output port quantity.
Further, arc light indicator light is equipped on the arc light relay.
Further, the grounding ports of the arc light relay are connected to the port connecting terminal block PE by ground line.
Further, the port the A2 ground connection of the breaker open operation coil.
Compared with the prior art, the utility model has the following advantages:
1, the utility model is equipped with protection pressing plate, protection pressing plate and arc light relay open circuit output port on power cabinet
Parallel bus be cascaded, when equipment normal operation, protection pressing plate is in investment state, i.e. arc light relay
In connection working condition, when such as overhaul of the equipments, protection pressing plate can be disconnected, arc light relay is in an off state, avoids
Have and causes arc light relay maloperation when overhauling at arc probe.
2, the utility model is parallel with one another by its by arc light relay open circuit output port cable, and protection is allowed to press
Plate and breaker open operation coil are connected on shunt circuit, which arc probe to be detected arc light such that regardless of, are made arc light relay
Electric signal can be passed to breaker open operation coil by protection pressing plate, the breaker open operation line on shunt circuit by device movement
Circle is powered, and makes column foot breaker open operation, to play the role of having arc light will automatic brake separating.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, arc probe, 2, arc light relay, 3, optical fiber, 4, anode, 5, cathode, 6, cable A, 7, cable
B, 8, grounding ports, 9, breaking output port, 10, cable C, 11, cable D, 12, protection pressing plate, 13, connecting terminal A,
14, connecting terminal B, 15, No. 2 ports, 16, the port A1,17, the port A2,18, No. 1 ports, 19, arc light interface, 20, ground line,
21, power cabinet, 22, breaker open operation coil, 23, opening button, 24, arc light indicator light.
Specific embodiment
The utility model is described further below with reference to Fig. 1, the utility model is a kind of grid-connected power generation system arc
Light protective device, including arc light relay 2, arc probe 1, power cabinet 21 include arc light interface 19 on arc light relay 2, disconnected
Road output port 9, positive 4, cathode 5, arc probe 1 are connect by optical fiber 3 with arc light interface 19, are equipped on power cabinet 21 disconnected
Road device opening coil 22, opening button 23, the port A1 16 of breaker open operation coil 22 and 15 electricity of No. 2 ports of opening button 23
Connection, breaking output port 9 at least there are three, and formation parallel circuit parallel with one another is equipped with protection pressing plate on power cabinet 21
12, protect the connecting terminal B14 on pressing plate 12 to pass through cable C10 and parallel circuit in series, No. 1 port 18 of opening button 23
Pass through cable D11 and parallel circuit in series；Protect No. 2 ports 15 of the connecting terminal A13 and opening button 23 on pressing plate 12
Electrical connection；The anode 4 and cathode 5 of arc light relay 2 are connected to connecting terminal block power supply by cable A6, cable B7 respectively
Place；Arc light interface 19, arc probe 1 are consistent with breaking 9 quantity of output port；Arc light instruction is equipped on arc light relay 2
Lamp 24；The grounding ports 8 of arc light relay 2 are connected to the port connecting terminal block PE by ground line 20；Breaker open operation coil
22 port A2 17 is grounded.
The working process of the utility model is as follows: before normal use, check AHG317A arc light relay 2 positive pole 4 with
Cathode 5 passes through No. 1 and No. 2 end of-X130.3.1 terminal block in cable A6, cable B7 and cabin NCC300 control cabinet respectively
It is intact whether mouth connects, while confirming that the grounding ports 8 on AHG317A arc light relay 2 pass through ground line 20 and cabin
Whether the port PE of-X130.3.1 terminal block connects in NCC300 control cabinet, and ensures that the connection of other components is intact；Work as cabin
If certain and many places generate arc light in NCC300 grid-connection cabinet and NCC320 frequency conversion tank, the arc light at opposite position is visited at this time
First 1 senses arclight, and arc optical signal is transferred on AHG317A arc light relay 2 corresponding arc light interface by optical fiber 3
19, so that it is transferred to AHG317A arc light relay 2, so that AHG317A arc light relay 2 acts, AHG317A arc light relay 2
Start the arc light indicator light 24 of flashing corresponding position, simultaneously AHG317A arc light relay 2 turns the arc optical signal received
Voltage signal is turned to, voltage signal is passed to by JY1-2 protection pressure by the breaking output port 9 of AHG317A arc light relay 2
Plate 12, thus protect pressing plate 12 to pass to voltage signal on breaker open operation coil 22 by JY1-2, breaker open operation coil
Due to electromagnetic action after 22 energizations, electric energy is converted into mechanical energy, the armature of breaker open operation coil 22 is made to hit breaker
Separating brake operating mechanism, make column foot breaker open operation, have the function that arc protection, while maintenance personnel can be indicated by arc light
Lamp 24 judges that position occurs for failure, to repair；It, can will be on power cabinet 21 when normal service equipment occurs for no arc light
JY1-2 protects pressing plate 12 to disconnect, i.e., arc light relay 2, which is in, disconnects attonity state, can effectively avoid and causes arc light relay
Maloperation.The upper end busbar of the preceding 690V breaker in case low pressure side breaker lower end busbar and TBC110 cabinet of maintenance uses low
Electroscope is pressed to carry out electrical verification operation；After identifying true no-voltage, hung at the upper end busbar of 690V breaker in tower bottom TBC110 cabinet
Ground line.It should ensure that sufficiency of illumination, cabin and ground communications are unimpeded in troubleshooting procedure, after work, work responsible person couple
Working region acceptance again, it is ensured that without residue, after work before the operation such as execution " shutdown ", Reset, it is necessary to
Close grid-connection cabinet (300) cabinet door.
Claims (6)
1. a kind of grid-connected power generation system arc light protecting device, including arc light relay (2), arc probe (1), power cabinet
(21), described including arc light interface (19), breaking output port (9), positive (4), cathode (5) on the arc light relay (2)
Arc probe (1) is connect with the arc light interface (19) by optical fiber (3), is equipped with breaker open operation on the power cabinet (21)
Coil (22), opening button (23), the 2 of the port A1 (16) of the breaker open operation coil (22) and the opening button (23)
The electrical connection of number port (15), it is characterised in that: the open circuit output port (9) at least there are three, and is formationed parallel with one another parallel connection
Circuit is equipped with protection pressing plate (12), the connecting terminal B(14 on protection pressing plate (12) on the power cabinet (21)) pass through
Cable C(10) with the parallel circuit in series, No. 1 port (18) of the opening button (23) passes through cable D(11) with
The parallel circuit in series；Connecting terminal A(13 on protection pressing plate (12)) it is electrically connected with No. 2 ports (15).
2. a kind of arc light protecting device of grid-connected power generation system according to claim 1, it is characterised in that: the arc light
The anode (4) of relay (2) and cathode (5) pass through cable A(6), cable B(7 respectively) it is connected to connecting terminal block power supply
Place.
3. a kind of arc light protecting device of grid-connected power generation system according to claim 1, it is characterised in that: the arc light
Interface (19), the arc probe (1) are consistent with breaking output port (9) quantity.
4. a kind of arc light protecting device of grid-connected power generation system according to claim 1, it is characterised in that: the arc light
Arc light indicator light (24) are equipped on relay (2).
5. a kind of arc light protecting device of grid-connected power generation system according to claim 1, it is characterised in that: the arc light
The grounding ports (8) of relay (2) are connected to the port connecting terminal block PE by being grounded (20).
6. a kind of arc light protecting device of grid-connected power generation system according to claim 1, it is characterised in that: the open circuit
The port A2 (17) of device opening coil (22) is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821247581.9U CN208508525U (en) | 2018-08-03 | 2018-08-03 | A kind of grid-connected power generation system arc light protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821247581.9U CN208508525U (en) | 2018-08-03 | 2018-08-03 | A kind of grid-connected power generation system arc light protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208508525U true CN208508525U (en) | 2019-02-15 |
Family
ID=65299761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821247581.9U Active CN208508525U (en) | 2018-08-03 | 2018-08-03 | A kind of grid-connected power generation system arc light protecting device |
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| CN (1) | CN208508525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518553A (en) * | 2019-08-21 | 2019-11-29 | 南京瑞德力电气科技有限公司 | A kind of bus feeder line arc light protecting system |
-
2018
- 2018-08-03 CN CN201821247581.9U patent/CN208508525U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518553A (en) * | 2019-08-21 | 2019-11-29 | 南京瑞德力电气科技有限公司 | A kind of bus feeder line arc light protecting system |
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