CN205388934U - Dampproofing optimizing apparatus of CT secondary terminal box - Google Patents
Dampproofing optimizing apparatus of CT secondary terminal box Download PDFInfo
- Publication number
- CN205388934U CN205388934U CN201620035215.1U CN201620035215U CN205388934U CN 205388934 U CN205388934 U CN 205388934U CN 201620035215 U CN201620035215 U CN 201620035215U CN 205388934 U CN205388934 U CN 205388934U
- Authority
- CN
- China
- Prior art keywords
- terminal box
- lid
- locking screw
- box body
- secondary terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000007689 inspection Methods 0.000 abstract description 2
- 241000521257 Hydrops Species 0.000 description 6
- 206010030113 Oedema Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000012271 tenesmus Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a dampproofing optimizing apparatus of CT secondary terminal box, including CT terminal box box body, the box body bottom is provided with lid, its characterized in that: box body and lid are the high preceding low slope form in back, and the lid bottom is provided with the observation hole, observes the downthehole locking screw who is provided with rather than screw -thread fit. The utility model discloses a setting, is backed out locking screw when whether inspection CT secondary terminal box intakes at the observation hole and the locking screw of lid bottom, have ponding if the terminal box is inside, then can observe and observe whether hole department has that water spills over, locking screw last whether have water stain to this judges whether terminal box inside has ponding, owing to differentiate with locking screw through observing the hole, consequently, maintainer can not touch the inside secondary wiring of terminal box by mistake, and not happening protection misoperation's risk does not influence the normal operating of equipment, safely the high efficiency in the keeping electric check CT secondary terminal box condition of intaking.
Description
Technical field
This utility model is involved in Power system security control technical field, optimizes device in particular to a kind of converter power transformer CT secondary terminal box protection against the tide.
Background technology
Very common according to the event that investigation, domestic transformer station and current conversion station open air CT secondary terminal box make moist.Find when attendant patrols and examines that in station, in standby converter transformer valve side CT secondary terminal box, watered and wetting is serious, after inspection of uncapping, find its internal hydrops, cause internal CT to have corrosion situation, hereafter, CT has been checked, it has been found that mono-winding loop Abnormal Insulation of this CT.If this water inlet equipment is precisely operational outfit, necessarily cause CT secondary circuit short-circuit, the extremely improper locking accident of direct current will be caused, HVDC transmission system safe operation is existed grave danger.
Summary of the invention
The purpose of this utility model seeks to solve the deficiency of above-mentioned background technology, it is provided that a kind of CT secondary terminal box protection against the tide optimizes device, can the flooded condition in on-line checking method CT secondary terminal box safely and efficiently.
The technical solution of the utility model is: a kind of CT secondary terminal box protection against the tide optimizes device, including CT terminal box body, it is provided with lid bottom described box body, it is characterized in that: described box body and lid are low dip shape before rear height, it is provided with observation port bottom described lid, in described observation port, is provided with the tie down screw with its threaded engagement.
Further, described box portion outside is provided with connection cable, and described connection cable joint-box is contained in sheath, and the bottom of described sheath tenesmus is provided with osculum.
A kind of CT secondary terminal box protection against the tide of the present utility model optimizes device, by being arranged on observation port bottom lid and tie down screw, when checking whether CT secondary terminal box intakes, tie down screw is backed out, if junction box has hydrops, then it is observed that whether observation port place has water to overflow, whether has on tie down screw water stain, judge whether junction box has hydrops with this；By then passing through observation port and tie down screw differentiates; therefore, attendant will not encounter the secondary connection of junction box by mistake, it does not have the risk of protection misoperation occurs; do not affect the properly functioning of equipment, can flooded condition in on-line checking method CT secondary terminal box safely and efficiently.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, a kind of CT secondary terminal box protection against the tide of the present embodiment optimizes device, including CT terminal box body 2, this box body 2 is fixedly mounted on bottom converter power transformer body base 1, lid 3 it is provided with bottom box body 2, box body 2 and lid 3 in rear height before low dip shape, be provided with observation port 4 bottom lid 3, be provided with in observation port 4 and its threaded engagement observation port is carried out the tie down screw 5 sealed.
When checking rosette water inlet, tie down screw is backed out, if junction box has hydrops, then it is observed that observation port 4 place has water to overflow, has on tie down screw 5 water stain, then can judge that junction box has hydrops, otherwise, then can judge that junction box does not have hydrops.After tie down screw 5 is backed out, owing to observation port 4 perforate is less, attendant will not encounter the secondary connection of junction box by mistake, it does not have the risk of protection misoperation occurs.
Further, since observation port 4 perforate is less, and being engaged closely between tie down screw 5 screw thread, due also to observation port 4 perforate is below rosette lid 3, therefore rainwater can enter junction box from observation port 4 tapping, therefore not affect the water resistance before transformation.And owing to tie down screw 5 is steel design, do not affect the change of current and become the electric conductivity that shell is overall, do not affect the ground connection of shell.
The present embodiment is provided with connection cable outside box body 2; connect cable joint-box and be contained in sheath 6; the bottom of sheath 6 tenesmus is provided with osculum 7; if had in sheath 6 into water; most water all can be discharged by osculum 7; owing to osculum 7 perforate is only small, so there is no have influence on the protective capability of cable cover(ing) 6.
CT secondary terminal box protection against the tide disclosed in the present embodiment optimizes device; attendant will not encounter the secondary connection of junction box by mistake; there is not the risk of protection misoperation, do not affect the properly functioning of equipment, can flooded condition in on-line checking method CT secondary terminal box safely and efficiently.
The above, be only preferred embodiment of the present utility model, and structure of the present utility model is not done any pro forma restriction.Every any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, all still falls within the scope of the technical solution of the utility model.
Claims (2)
1. a CT secondary terminal box protection against the tide optimizes device, including CT terminal box body (2), described box body (2) bottom is provided with lid (3), it is characterized in that: described box body (2) and lid (3) are in low dip shape before rear height, described lid (3) bottom is provided with observation port (4), is provided with the tie down screw (5) with its threaded engagement in described observation port (4).
2. CT secondary terminal box protection against the tide according to claim 1 optimizes device, it is characterized in that: described box body (2) is outside is provided with connection cable, described connection cable joint-box is contained in sheath (6), and the bottom that described sheath (6) drops is provided with osculum (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035215.1U CN205388934U (en) | 2016-01-14 | 2016-01-14 | Dampproofing optimizing apparatus of CT secondary terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035215.1U CN205388934U (en) | 2016-01-14 | 2016-01-14 | Dampproofing optimizing apparatus of CT secondary terminal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388934U true CN205388934U (en) | 2016-07-20 |
Family
ID=56383197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620035215.1U Active CN205388934U (en) | 2016-01-14 | 2016-01-14 | Dampproofing optimizing apparatus of CT secondary terminal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148117A (en) * | 2018-09-26 | 2019-01-04 | 国家电网公司 | A kind of open air substation's light CT terminal box |
-
2016
- 2016-01-14 CN CN201620035215.1U patent/CN205388934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148117A (en) * | 2018-09-26 | 2019-01-04 | 国家电网公司 | A kind of open air substation's light CT terminal box |
| CN109148117B (en) * | 2018-09-26 | 2024-02-06 | 国家电网公司 | Outdoor junction box of transformer substation light CT |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |