CN209200313U - A kind of electrical grounding terminal box - Google Patents
A kind of electrical grounding terminal box Download PDFInfo
- Publication number
- CN209200313U CN209200313U CN201920105071.6U CN201920105071U CN209200313U CN 209200313 U CN209200313 U CN 209200313U CN 201920105071 U CN201920105071 U CN 201920105071U CN 209200313 U CN209200313 U CN 209200313U
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- connection
- grounding terminal
- wiring hole
- electric wire
- current transformer
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Abstract
The utility model relates to a kind of electrical grounding terminal boxs, the terminal box includes: grounding terminal block, on its cabinet for being set to electrical grounding terminal box, grounding terminal block is equipped with multiple wiring holes, and first the metal shell of wiring hole and cabinet connect, the ground connection busbar and metal shell of the connection of the ground terminal of third wiring hole and socket, the 5th wiring hole and distribution box connect, and the 6th connection jaws are connect with the earth；The connection electric wire between the connection electric wire and the 5th wiring hole and ground connection busbar and the metal shell of distribution box between connection electric wire, third wiring hole and the ground terminal of socket between first wiring hole and the metal shell of cabinet is respectively corresponded across first current transformer, and the secondary side of each first current transformer is all connected with an indicator light；Connection electric wire between 6th connection jaws and the earth passes through the second current transformer, and the secondary side of the second current transformer is connect with relay, and relay is connect by a normally opened contact with alarm.
Description
Technical field
The utility model relates to electrical applications technical fields, in particular to a kind of electrical grounding terminal box.
Background technique
In the design for power supply and distribution of oil and gas pipeline yard, the effect of electrical grounding terminal box is to prevent different gold
Belong to and generate potential difference between object, to cause the danger such as electrical hazard or person electric shock.Each equipment, metal tube etc. in building
After ground connection is usually first connected to electrical grounding terminal box, it is then connected to outdoor main grounding grid.But common electrical grounding end
Sub- case can not learn the concrete condition that connected device is discharged.It can not detect which equipment regular picture or accident are put
Electricity, so as to cause electrical malfunction and personal Danger Electric shock risk.
Utility model content
To solve the above problems, monitoring is each the purpose of this utility model is to provide a kind of electrical grounding terminal box
The specific discharge scenario for connecting equipment, avoids the generation of safety accident.
The utility model provides a kind of electrical grounding terminal box, which includes:
Grounding terminal block is set on the cabinet of the electrical grounding terminal box, and the grounding terminal block is equipped with more
A wiring hole, and the metal shell of the first wiring hole and cabinet connects, the ground terminal of third wiring hole and socket connects, and the 5th
The connection of the ground connection busbar and metal shell of wiring hole and distribution box, the 6th connection jaws are connect with the earth；
Connection electric wire, the third wiring hole between first wiring hole and the metal shell of the cabinet with it is described
The ground connection busbar and metal shell of connection electric wire and the 5th wiring hole and distribution box between the ground terminal of socket it
Between connection electric wire respectively correspond across first current transformer, and the secondary side of each first current transformer is equal
Connect an indicator light；
Connection electric wire between 6th connection jaws and the earth passes through the second current transformer, second Current Mutual Inductance
The secondary side of device is connect with relay, and the relay is connect by a normally opened contact with alarm.
The material of the grounding terminal block is red copper as a further improvement of the utility model,.
It as a further improvement of the utility model, further include building, air-conditioning and metal inlet wire pipe, the building
Metal shell, the metal tube of the air-conditioning and the metal inlet wire pipe respectively on the grounding terminal block the second connection jaws,
4th connection jaws and the connection of the 6th connection jaws.
As a further improvement of the utility model, between the metal shell of the building and second connection jaws
Connect electric wire, the air-conditioning metal tube and the 4th connection jaws between connection electric wire and the metal inlet wire pipe with it is described
Connection electric wire between 6th connection jaws is respectively corresponded across first current transformer, and each first electric current
The secondary side of mutual inductor is all connected with the indicator light.
Each first current transformer passes through insulator and is consolidated as a further improvement of the utility model,
It is fixed.
As a further improvement of the utility model, the box sizes of the ground terminal case be 400mm × 200mm ×
200mm。
The utility model has the following beneficial effects: electrical grounding terminal box described in the utility model is in each equipment and terminal
Current transformer, and the mating setting indicator light of current transformer and alarm are set on the connecting line of case, and current transformer can be real
When monitor it is each connection equipment discharge scenario, once accident electric discharge phenomena occur for some equipment, then indicator light or alarm device meeting
Directly prompt staff note that so as to avoid electrical malfunction or the person electric shock etc. perils generation.
Detailed description of the invention
Fig. 1 is a kind of electrical grounding terminal box structural schematic diagram described in the utility model embodiment.
In figure,
1, the first current transformer；2, the second current transformer；3, relay；4, alarm；5, grounding terminal block；6, machine
Cabinet；7, building；8, socket；9, air-conditioning；10, distribution box；11, metal inlet wire pipe；51, the first wiring hole；52, the second wiring
Hole；53, third wiring hole；54, the 4th wiring hole；55, the 5th wiring hole；56, the 6th wiring hole.
Specific embodiment
Below by specific embodiment and in conjunction with attached drawing, the utility model is further described in detail.
As shown in Figure 1, being a kind of electrical grounding terminal box described in the utility model embodiment, which includes:
Grounding terminal block 5 is set on the cabinet of electrical grounding terminal box, and grounding terminal block 5 is equipped with multiple wiring
Hole, and the first wiring hole 51 is connect with the metal shell of cabinet 6, third wiring hole 53 is connect with the ground terminal of socket 8, and the 5th
Wiring hole 55 is connect with the ground connection busbar and metal shell of distribution box 10, and the 6th connection jaws 56 are connect with the earth；
The ground connection of connection electric wire, third wiring hole 53 and socket 8 between first wiring hole 51 and the metal shell of cabinet 6
Connection electricity between connection electric wire and the 5th wiring hole 55 between terminal and the ground connection busbar and metal shell of distribution box 10
Line is respectively corresponded across first current transformer 1, and the secondary side of each first current transformer 1 is all connected with an instruction
Lamp；
Connection electric wire between 6th connection jaws 56 and the earth passes through the second current transformer 2, the second current transformer 2
Secondary side is connect with relay 3, and relay 3 is connect by a normally opened contact with alarm 4.The normally opened contact of relay 3
It is arranged on the distribution box outside ground terminal case.
Further, the material of grounding terminal block 5 is red copper.
It further, further include building 7, air-conditioning 9 and metal inlet wire pipe 11, the metal shell of building 7, air-conditioning 9
Metal tube and metal inlet wire pipe 11 respectively with the second connection jaws 52, the 4th connection jaws 54 and the 6th wiring on grounding terminal block 5
Mouth 56 connects.
Further, the metal tube of the connection electric wire between the metal shell of building 7 and the second connection jaws 52, air-conditioning 9
Connection electric wire between the 4th connection jaws 54 and the connection electric wire between metal inlet wire pipe 11 and the 6th connection jaws 56 are right respectively
First current transformer 1 should be passed through, and the secondary side of each first current transformer 1 is all connected with an indicator light.
Further, each first current transformer 1 is fixed by insulator.In order to guarantee safety, thus it is logical
It crosses insulator each first current transformer 1 is fixed on the cabinet of ground terminal case.
Further, the box sizes of ground terminal case are 400mm × 200mm × 200mm.
In electrical grounding terminal box described in the utility model, the company of the metal shell of cabinet 6 and the first wiring hole 51
It connects wires, the ground terminal and third wiring hole for connecting electric wire, socket 8 of the metal structure of building 7 and the second wiring hole 52
Outside the 53 connection electric wire for connecting electric wire, the metal tube of air-conditioning 9 and the 4th wiring hole 54, the ground connection busbar and metal of distribution box 10
The connection electric wire of the connection electric wire and metal inlet wire pipe 11 and the 6th wiring hole 56 of shell and the 4th wiring hole 55 is equipped with one
First current transformer 1, and the secondary side of each first current transformer 1 is all connected with an indicator light.When electrical grounding end
In the entire circuit of sub- case when there is ground fault, abnormal electric discharge phenomena i.e. accident electric discharge phenomena will be generated, from
And the secondary side electrification of the first current transformer 1, the indicator light in circuit just can be lit, which grounding apparatus is corresponding
Bright can determine of indicator light is that accident electric discharge occurs for which equipment.Electrical grounding terminal box passes through on grounding terminal block 5 simultaneously
The 6th wiring hole 56 connect with main grounding grid, and the second current transformer 2 is equipped on the connecting line of the two, the second electric current is mutual
The secondary side of sensor 2 connects relay 3, and relay 3 is then connect by normally opened contact with alarm device 4.When the second current transformer 2
When monitoring that paradoxical discharge occurs in total ground path, secondary side will be charged, so that the normally opened contact closure of relay 3 is induced,
Alarm device 4 then sounds an alarm prompt staff therewith and paradoxical discharge occurs.
In actual condition, once there is any one equipment the abnormal situation of ground connection, the second electricity on total ground line occur
Current transformer 2 induces the normally opened contact closure on the relay 3 of its secondary side, so that alarm 4 sounds an alarm, operator is
It can be seen that thering is grounding apparatus to be abnormal electric discharge, in order to further determine being which connection equipment is abnormal power generation, then into one
Indicator light corresponding to multiple first current transformers 1 of step observation difference, which indicator light is bright, illustrates that its corresponding connection is set
It is standby abnormal power generation issues occur, so that staff then can carry out stoppage in transit maintenance for specific connection equipment.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of electrical grounding terminal box characterized by comprising
Grounding terminal block (5) is set on the cabinet of the electrical grounding terminal box, and the grounding terminal block (5) is equipped with
Multiple wiring holes, and the first wiring hole (51) is connect with the metal shell of cabinet (6), third wiring hole (53) and socket (8)
Ground terminal connection, the 5th wiring hole (55) are connect with the ground connection busbar of distribution box (10) and metal shell, the 6th connection jaws
(56) it is connect with the earth；
Connection electric wire, the third wiring hole between first wiring hole (51) and the metal shell of the cabinet (6)
(53) the connection electric wire between the ground terminal of the socket (8) and the 5th wiring hole (55) and distribution box (10)
Connection electric wire between ground connection busbar and metal shell is respectively corresponded across first current transformer (1), and each described
The secondary side of first current transformer (1) is all connected with an indicator light；
Connection electric wire between 6th connection jaws (56) and the earth passes through the second current transformer (2), second electric current
The secondary side of mutual inductor (2) is connect with relay (3), and the relay (3) is connected by a normally opened contact and alarm (4)
It connects.
2. electrical grounding terminal box according to claim 1, which is characterized in that the material of the grounding terminal block (5)
For red copper.
3. electrical grounding terminal box according to claim 1, which is characterized in that further include building (7), air-conditioning (9)
With metal inlet wire pipe (11), the metal shell of the building (7), the metal tube of the air-conditioning (9) and the metal inlet wire pipe
(11) respectively with the second connection jaws (52), the 4th connection jaws (54) and the 6th connection jaws (56) on the grounding terminal block (5)
Connection.
4. electrical grounding terminal box according to claim 3, which is characterized in that the metal shell of the building (7)
The metal tube of connection electric wire, the air-conditioning (9) between second connection jaws (52) and the 4th connection jaws (54) it
Between connection electric wire and the metal inlet wire pipe (11) and the 6th connection jaws (56) between connection electric wire respectively correspond and wear
First current transformer (1) is crossed, and the secondary side of each first current transformer (1) is all connected with described in one
Indicator light.
5. electrical grounding terminal box according to claim 1 or 4, which is characterized in that each first Current Mutual Inductance
Device (1) is fixed by insulator.
6. electrical grounding terminal box according to claim 1, which is characterized in that the box sizes of the ground terminal case
For 400mm × 200mm × 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105071.6U CN209200313U (en) | 2019-01-22 | 2019-01-22 | A kind of electrical grounding terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105071.6U CN209200313U (en) | 2019-01-22 | 2019-01-22 | A kind of electrical grounding terminal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209200313U true CN209200313U (en) | 2019-08-02 |
Family
ID=67431490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920105071.6U Active CN209200313U (en) | 2019-01-22 | 2019-01-22 | A kind of electrical grounding terminal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209200313U (en) |
-
2019
- 2019-01-22 CN CN201920105071.6U patent/CN209200313U/en active Active
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