CN206076948U - A kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators - Google Patents
A kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators Download PDFInfo
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- CN206076948U CN206076948U CN201621010488.7U CN201621010488U CN206076948U CN 206076948 U CN206076948 U CN 206076948U CN 201621010488 U CN201621010488 U CN 201621010488U CN 206076948 U CN206076948 U CN 206076948U
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- fixedly connected
- sleeve pipe
- neutral point
- electrical equipment
- combined electrical
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Abstract
The utility model discloses a kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators, including fixed plate, side at the top of fixed plate is fixedly connected with to be connected and is connected to gas storage tanks, the excessive sleeve pipe of oil gas is communicated with the top of gas storage tanks, the excessive sleeve pipe fixed pole of oil gas, one end that the top of fix bar is fixed is fixedly connected with transformator, the other end of the excessive sleeve pipe of oil gas is communicated with vertical connecting tube, filtration sleeve pipe is communicated with the excessive sleeve pipe of oil gas, on the excessive sleeve pipe of oil gas and positioned at filtering, the first current transformer is fixedly connected with the right side of sleeve pipe.The neutral point gas insulated combined electrical equipment of 110kV～330kV transformators; solve the single situation of discharging gap structure in the neutral point gas insulated combined electrical equipment of current existing transformator; use is facilitated preferably; conveniently quickly safeguarded; improve protective value, it is to avoid be easily caused the situation that insecticide, birds or other foreign objects are accidentally touched and cause short circuit.
Description
Technical field
This utility model is related to gas insulated combined electrical equipment technical field, specially a kind of 110kV～330kV transformators
Neutral point gas insulated combined electrical equipment.
Background technology
110kV～330kV is the mains voltage grade of supply network, belongs to solidly earthed neutral system.Earthing mode
It is to require what is determined according to the method for operation of electrical network, i.e. " close-point " position of grounding switch is determined by dispatching of power netwoks operator on duty
It is fixed.When isolated neutral, as thunderbolt, single-phase grounding fault etc. can cause neutral point overvoltage, and transformator
It is graded insulation mostly, therefore insulation of the overvoltage to transformer neutral point causes very big threat, it is necessary to which protection dress is set to which
Put Accident prevention generation, the i.e. insulation by discharging gap and neutral point MOA to transformer neutral point and protection is provided.
Discharging gap, also known as portable protective gaps, it is typically by aerial two metal bars for being separated by certain interval of exposure
Composition, wherein a metal bar is connected with power supply phase line L1 or zero line (N) of required protection equipment, another metal bar be grounded
Line (PE) is connected, and when instantaneous overvoltage attacks, gap is breakdown, and the electric charge of a part of overvoltage is introduced the earth, it is to avoid
Raised by the voltage in protection equipment.The distance between two metal bars of this discharging gap can be adjusted on demand, structure compared with
Simply, which has the disadvantage that arc extinction performance is poor.Follow-on discharging gap be angle-style gap, its arc-suppression function compared with the former preferably, it
Be be close to road electric power F effect and thermal current effect of increasing and make arc extinction.
At present, the discharging gap structure in the neutral point gas insulated combined electrical equipment of existing transformator is single, is using
When, inconvenience is safeguarded in very inconvenience, and the protective value which has is relatively low, and is easily caused insecticide, birds or other foreign object idols
So touch and cause short-circuit situation.
Utility model content
(1) technical problem for solving
For the deficiencies in the prior art, this utility model provides a kind of neutral point gas of 110kV～330kV transformators
Insulation in combined electric appliance, solves at present, the discharging gap structure in the neutral point gas insulated combined electrical equipment of existing transformator
Single, when in use, inconvenience is safeguarded in very inconvenience, and which has the relatively low problem of protective value.
(2) technical scheme
To realize object above, this utility model is achieved by the following technical programs：A kind of 110kV～330kV becomes
The neutral point gas insulated combined electrical equipment of depressor, including fixed plate, the side at the top of the fixed plate are fixedly connected with fix bar,
And the top of fix bar is fixedly connected with gas storage tanks, the excessive sleeve pipe of oil gas at the top of the gas storage tanks, is communicated with,
And one end of the excessive sleeve pipe of oil gas is fixedly connected with transformator, the other end of the excessive sleeve pipe of the oil gas is communicated with vertical connection
Pipe, and is communicated with filtration sleeve pipe on the excessive sleeve pipe of oil gas, on the excessive sleeve pipe of the oil gas and solid positioned at the right side for filtering sleeve pipe
Surely the first current transformer is connected with, the side on the vertical connecting tube top is communicated with transverse connecting pipe, and lateral connection
Pipe is fixedly connected sequentially from left to right and has disconnecting switch, the second current transformer and bottom line sleeve pipe, the transverse connecting pipe away from
One end of vertical connecting tube is communicated with discharging gap apparatus, and the bottom of bottom line sleeve pipe is fixedly connected with discharging rod.
Preferably, the discharging gap apparatus include that the both sides at the top of the first base plate, and the first base plate pass through first
Pole is fixedly connected with collets, is fixedly connected between angle-style electrode, and two angle-style electrodes at the top of the collets
Top be fixedly connected with the first electric arc, the first main gap, and the bottom of angle-style electrode are formed between described two angle-style electrodes
The first auxiliary gap is formed between end and the first pole.
Preferably, the discharging gap apparatus include that the both sides at the top of the second base plate, and the second base plate pass through second
Pole is fixedly connected with insulated terminal, is fixedly connected with and connects bus at the top of the insulated terminal, and two connect between bus
Top be fixedly connected with the second electric arc, described two connecing formed between bus the second main gap, and connect the bottom of bus with
The second auxiliary gap is formed between second pole.
Preferably, the quantity of the fix bar is two, and the top of fix bar is solid with the bottom of gas storage tanks
It is fixed to connect.
Preferably, the bottom of the vertical connecting tube is fixedly connected with support column, and bottom and the fixed plate of support column
Top be fixedly connected.
(3) beneficial effect
This utility model provides a kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators.Possess with
Lower beneficial effect：
(1), the neutral point gas insulated combined electrical equipment of 110kV～330kV transformators, is included by discharging gap apparatus
First base plate and the second base plate, the first base plate, the first pole, collets, angle-style electrode and the first electric arc are equipped with, and
Second base plate, the second pole, insulated terminal, being equipped with for bus and the second electric arc is connect, solve current existing transformator
Neutral point gas insulated combined electrical equipment in the single situation of discharging gap structure, preferably facilitate use, conveniently carry out
Quickly safeguard, improve protective value, it is to avoid being easily caused insecticide, birds or other foreign objects accidentally touches and cause short circuit
Situation.
(2), the neutral point gas insulated combined electrical equipment of 110kV～330kV transformators, by fixed plate, fix bar, gas
The excessive sleeve pipe of body storage bin, oil gas, transformator, vertical connecting tube, filter sleeve pipe, the first current transformer, transverse connecting pipe, every
The cooperation of pass, the second current transformer, bottom line sleeve pipe and discharging gap apparatus is left, existing traditional open type transformation is changed
The problem of device neutral point gas insulated combined electrical equipment, preferably facilitates the use of user, improves the efficiency for using.
Description of the drawings
Fig. 1 is this utility model structural representation；
Structural representations of the Fig. 2 for this utility model embodiment one；
Structural representations of the Fig. 3 for this utility model embodiment two.
In figure：1 fixed plate, 2 fix bars, 3 gas storage tanks, the excessive sleeve pipe of 4 oil gas, 5 transformators, 6 vertical connecting tubes, 7
Filter sleeve pipe, 8 first current transformers, 9 transverse connecting pipes, 10 disconnecting switch, 11 second current transformers, 12 bottom line sleeve pipes,
13 discharging gap apparatus, 14 discharging rod, 15 first base plates, 16 first poles, 17 collets, 18 angle-style electrodes, 19 first electric arcs,
20 first main gaps, 21 first auxiliary gaps, 22 second base plates, 23 second poles, 24 insulated terminals, 25 connect bus, 26 second
Electric arc, 27 second main gaps, 28 second auxiliary gaps, 29 support columns.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1-3 are referred to, this utility model provides a kind of technical scheme：A kind of neutral point of 110kV～330kV transformators
Gas insulated combined electrical equipment, including fixed plate 1, the side at the top of fixed plate 1 are fixedly connected with fix bar 2, the quantity of fix bar 2
For two, fix bar 2 plays a part of support, and bottom of the top of fix bar 2 with gas storage tanks 3 to fix bar 2
It is fixedly connected, and the top of fix bar 2 is fixedly connected with gas storage tanks 3, gas storage tanks 3 is in round, and gas storage
Deposit the bottom of case 3 and be located between two fix bars 2 and be communicated with feed and exhaust tube, the top of gas storage tanks 3 is communicated with oil gas mistake
Degree sleeve pipe 4, and one end of the excessive sleeve pipe of oil gas 4 is fixedly connected with transformator 5, the other end of the excessive sleeve pipe of oil gas 4 are communicated with
Vertical connecting tube 6, the bottom of vertical connecting tube 6 are fixedly connected with support column 29, and the bottom of support column 29 and fixed plate 1
Top is fixedly connected, and filtration sleeve pipe 7 is communicated with the excessive sleeve pipe of oil gas 4, on the excessive sleeve pipe of oil gas 4 and is located at and filters sleeve pipe
7 right side is fixedly connected with the first current transformer 8, and 8 principle of the first current transformer is electricity made by foundation transformer principle
Current transformer is made up of the iron core and winding for closing, and its first side winding number of turn seldom, is gone here and there in the electric current for needing measurement
In circuit, therefore whole electric currents that its Jing often has circuit flow through, and secondary side winding turn ratio is more, is serially connected in measuring instrumentss and guarantor
In shield loop, operationally, its secondary side circuit is to close to current transformer all the time, therefore measuring instrumentss and protective loop
The impedance very little of series coil, the working condition of current transformer are close to short circuit, and current transformer is that primary side high current is turned
Change secondary side small current into measure, secondary side can not be opened a way, the side on 6 top of vertical connecting tube is communicated with transverse connecting pipe 9,
And transverse connecting pipe 9 is fixedly connected sequentially from left to right disconnecting switch 10, the second current transformer 11 and bottom line sleeve pipe 12,
Transverse connecting pipe 9 is communicated with discharging gap apparatus 13 away from one end of vertical connecting tube 6, and the bottom of bottom line sleeve pipe 12 is fixed
It is connected with discharging rod 14.
Embodiment one：Fig. 2 is referred to, discharging gap apparatus 13 are included at the top of the first base plate 15, and the first base plate 15
Both sides are fixedly connected with collets 17 by the first pole 16, and the top of collets 17 is fixedly connected with angle-style electrode 18, and
And the top between two angle-style electrodes 18 is fixedly connected with the first electric arc 19, formed between two angle-style electrodes 18 between the first master
The first auxiliary gap 21, one of angle-style electrode are formed between gap 20, and the bottom of angle-style electrode 18 and the first pole 16
18 are fixed on collets 17, connect with live wire, and another angle-style electrode 18 is by the first auxiliary gap 21 and ground connection dress
Put and connect, between two angle-style electrodes 18, keep the clearance distance for specifying.
Embodiment two：Fig. 3 is referred to, discharging gap apparatus 13 are included at the top of the second base plate 22, and the second base plate 22
Both sides are fixedly connected with insulated terminal 24 by the second pole 23, and the top of insulated terminal 24 is fixedly connected with and connects bus 25,
And two tops connect between bus 25 are fixedly connected with the second electric arc 26, two connect
27, and connect, one of them connects bus 25 and fixes
On insulated terminal 24, connect with live wire, another is connect bus 25 and is connected with grounding device by the second auxiliary gap 28,
Two connect the clearance distance for keeping specifying between bus 25.
In sum, the neutral point gas insulated combined electrical equipment of 110kV～330kV transformators, is filled by discharging gap
Putting 13 includes the first base plate 15 and the second base plate 22, the first base plate 15, the first pole 16, collets 17, angle-style electrode 18 and
One electric arc 19 is equipped with, and the second base plate 22, the second pole 23, insulated terminal 24, connects bus 25 and the second electric arc 26
Be equipped with, the discharging gap structure solved in the neutral point gas insulated combined electrical equipment of current existing transformator is single
Situation, preferably facilitate use, conveniently quickly safeguarded, improve protective value, it is to avoid be easily caused insecticide,
Birds or other foreign objects are accidentally touched and cause short-circuit situation.
Also, 4 pipes, transformator 5, vertical connecting tube are excessively covered by fixed plate 1, fix bar 2, gas storage tanks 3, oil gas
6th, sleeve pipe 7, the first current transformer 8, transverse connecting pipe 9, disconnecting switch 10, the second current transformer 11, bottom line sleeve pipe are filtered
12 and the cooperation of discharging gap apparatus 13, change existing traditional open-type transformer neutral point gas insulated combined electrical equipment
Problem, preferably facilitates the use of user, improves the efficiency for using.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
Be appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repair
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators, including fixed plate (1), its feature exist
In：Side at the top of the fixed plate (1) is fixedly connected with fix bar (2), and the top of fix bar (2) is fixedly connected with gas
Body storage bin (3), is communicated with the excessive sleeve pipe of oil gas (4), and the excessive sleeve pipe of oil gas (4) at the top of the gas storage tanks (3)
One end be fixedly connected with transformator (5), the other end of the excessive sleeve pipe (4) of the oil gas is communicated with vertical connecting tube (6), and
Filtration sleeve pipe (7) is communicated with the excessive sleeve pipe of oil gas (4), on the excessive sleeve pipe (4) of the oil gas and the right side for filtering sleeve pipe (7) is located at
Side is fixedly connected with the first current transformer (8), and the side on vertical connecting tube (6) top is communicated with transverse connecting pipe (9),
And transverse connecting pipe (9) is fixedly connected sequentially from left to right disconnecting switch (10), the second current transformer (11) and bottom line
Sleeve pipe (12), the transverse connecting pipe (9) are communicated with discharging gap apparatus (13) away from one end of vertical connecting tube (6), and
The bottom of bottom line sleeve pipe (12) is fixedly connected with discharging rod (14).
2. the neutral point gas insulated combined electrical equipment of a kind of 110kV～330kV transformators according to claim 1, which is special
Levy and be：The discharging gap apparatus (13) pass through including the both sides at the top of the first base plate (15), and the first base plate (15)
First pole (16) is fixedly connected with collets (17), is fixedly connected with angle-style electrode (18) at the top of the collets (17),
And the top between two angle-style electrodes (18) is fixedly connected with the first electric arc (19), between described two angle-style electrodes (18)
Form the first main gap (20), and angle-style electrode (18) bottom and the first pole (16) between form the first auxiliary gap
(21)。
3. the neutral point gas insulated combined electrical equipment of a kind of 110kV～330kV transformators according to claim 1, which is special
Levy and be：The discharging gap apparatus (13) pass through including the both sides at the top of the second base plate (22), and the second base plate (22)
Second pole (23) is fixedly connected with insulated terminal (24), is fixedly connected with and connects bus at the top of the insulated terminal (24)
(25), and two tops connect between bus (25) are fixedly connected with the second electric arc (26), it is described two connect bus (25) it
Between form the second main gap (27), and to connect and form the second auxiliary gap between the bottom of bus (25) and the second pole (23)
(28)。
4. the neutral point gas insulated combined electrical equipment of a kind of 110kV～330kV transformators according to claim 1, which is special
Levy and be：The quantity of the fix bar (2) is two, and the top of fix bar (2) is solid with the bottom of gas storage tanks (3)
It is fixed to connect.
5. the neutral point gas insulated combined electrical equipment of a kind of 110kV～330kV transformators according to claim 1, which is special
Levy and be：The bottom of the vertical connecting tube (6) is fixedly connected with support column (29), and bottom and the fixation of support column (29)
Plate is fixedly connected at the top of (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010488.7U CN206076948U (en) | 2016-08-30 | 2016-08-30 | A kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010488.7U CN206076948U (en) | 2016-08-30 | 2016-08-30 | A kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators |
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| Publication Number | Publication Date |
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| CN206076948U true CN206076948U (en) | 2017-04-05 |
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| CN201621010488.7U Active CN206076948U (en) | 2016-08-30 | 2016-08-30 | A kind of neutral point gas insulated combined electrical equipment of 110kV～330kV transformators |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752536A (en) * | 2019-09-18 | 2020-02-04 | 国网浙江省电力有限公司经济技术研究院 | Gas insulated metal enclosed neutral point complete equipment |
-
2016
- 2016-08-30 CN CN201621010488.7U patent/CN206076948U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752536A (en) * | 2019-09-18 | 2020-02-04 | 国网浙江省电力有限公司经济技术研究院 | Gas insulated metal enclosed neutral point complete equipment |
| CN110752536B (en) * | 2019-09-18 | 2023-11-03 | 国网浙江省电力有限公司经济技术研究院 | Gas-insulated metal-enclosed neutral point complete equipment |
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