CN209102778U - A kind of outdoor two elements three-phase power metering box of band protection - Google Patents
A kind of outdoor two elements three-phase power metering box of band protection Download PDFInfo
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- CN209102778U CN209102778U CN201821067296.9U CN201821067296U CN209102778U CN 209102778 U CN209102778 U CN 209102778U CN 201821067296 U CN201821067296 U CN 201821067296U CN 209102778 U CN209102778 U CN 209102778U
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Abstract
A kind of outdoor two elements three-phase power metering box of the band protection of the utility model, including cluster parachute, two voltage transformers, two current transformers, cabinet, secondary connection panel is provided on cabinet, it is characterized in that, two current transformers are series at high pressure A respectively, C route, the high pressure Same Name of Ends of two voltage transformers accesses A after fuse respectively, C high-voltage circuit, the public leading-out terminal of two voltage transformers accesses B high-voltage circuit after fuse, the secondary connection panel line of current transformer and voltage transformer secondary and cabinet is connected for connecting externally measured circuit.The beneficial effects of the utility model are: can measurement when encounter short circuit or overload the case where when fuse energy off voltage mutual inductor primary circuit; to reach protection product and related electric equipment; two fusing chambers are set in the cabinet wall of secondary connection panel one side, have not only been convenient for changing but also beautiful proper.
Description
Technical field
The utility model relates to a kind of electric power device for measurement of electrical energy, the outdoor two elements three-phase power metering box with protection.
Background technique
Electric power mutual-inductor combination transformer is the integral type mutual inductor being composed of current transformer and voltage transformer,
A kind of force device for electrical energy measurement and protection power circuit.Mutual inductor itself is also to belong to a kind of use in the power system
Electric device, it is also desirable to certain safeguard measure is taken, and the integral type mutual inductor on current market is poured using sealed resin
Technique only has electrical energy measurement function, and autoprotection apparatus structure is unreasonable, in use since misoperation is easily made
At mutual inductor overload itself or the situation of short circuit, thus the operation of whole power circuit is influenced, or even jeopardize entire electric power
The safety of system.
However the demand of power industry is increasingly come, it is higher and higher to the convenient degree and quality requirement of product, therefore group
The face of the application of box-like power combinations mutual inductor and demand are more and more wider.Combined instrument transformer is divided into split type combination mutual inductance again
Device and integrated combination mutual inductor.Combination transformer includes epoxy resin casting matrix, two current transformers, two voltage transformers.
The primary coil and primary side equipotential of combination transformer, the i.e. primary side of current mutual inductor coil are connected to the height of test line
Pressure side, secondary coil are measurement output end；The primary side of voltage transformer is connected to the high-voltage end of test line by fuse,
Secondary coil of voltage transformer is measurement output signal.Wherein split type mutual inductor is to be fixed on one by single each mutual inductor
On the biggish bottom plate of area, several independent mutual inductors are connected according to connection principle respectively.Split type combination mutual inductance
Device can both be used from using for purpose as electrical energy measurement, can also be done protection power circuit and be used, this is its advantage, formally
Also there is corresponding drawback simultaneously during installation in this advantage.Be previously noted, split type combination transformer be by
Several independent mutual inductors are pieced together on a kilowatt meter cabinet, necessarily cause bulky, and space accounting is larger, and weight is inclined
Weight, is not easy to install, not received by user increasingly.
Another integrated combination mutual inductor is that coil and iron core are passed through resin cast process seal in a body.
Compare split type, space accounting is smaller, and it is more convenient to install, therefore is significantly decreased and mitigates in terms of volume and weight, real
The miniaturization and intelligence of high-voltage electric-energy meter are showed, product can be mounted directly lives in high-pressure side outdoors, Neng Gouyou
Effect prevents stealing.Belong to the product of both types mostly on the market, all lack the functional structure for having the protection of safe and reasonable,
Once product itself has mass defect and is more than centainly using time, the aging of product and misoperation in use, easily
Lead to electric current and voltage while damaging, bursts, even result in personal safety.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of for present technical deficiency, in mutual inductor
Protective device is added in the structure in portion, practical epoxide resin vacuum casting is integral, is a kind of mounted in outdoor and vacuum circuit breaker
Matching used two elements device.
A kind of outdoor two elements three-phase power metering box of band protection of the utility model, including cluster parachute, two voltages are mutual
Sensor, two current transformers, cabinets are provided with secondary connection panel on cabinet, which is characterized in that two Current Mutual Inductances
Device is series at high pressure A, C route respectively, and the high pressure Same Name of Ends of two voltage transformers accesses A, C high after fuse respectively
Voltage circuit, the public leading-out terminal of two voltage transformers access B high-voltage circuit after fuse, current transformer and
The secondary connection panel line of voltage transformer secondary and cabinet is connected for connecting externally measured circuit.Also packet two is horizontally set at
Casting cylindrical body below the cluster parachute, the casting cylindrical body are the hollow structure of both ends open, and the cluster parachute and two pour
Casting cylinder bottom is each provided with spring fastener, and top is provided with closure assemblies, and the fuse is respectively arranged at described two
In casting cylindrical body and cluster parachute.Silica gel sealing lid is provided on the outside of two casting cylindrical bodies.
The beneficial effects of the utility model are:
1, the primary circuit of fuse energy off voltage mutual inductor when the case where capable of encountering short circuit or overload in measurement,
To reach protection product and related electric equipment.
2, two fusing chambers are set in the cabinet wall of secondary connection panel one side, have not only been convenient for changing but also beautiful proper.
Detailed description of the invention
The structural schematic diagram of 1 the utility model of attached drawing；
The elementary diagram of 2 the utility model of attached drawing；
Description of symbols: cluster parachute 1, voltage transformer 2, current transformer 3, secondary connection panel 4, fuse 5, casting
Cylindrical body 6, silica gel sealing lid 7.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present disclosure clearer, below in conjunction with the embodiment of the present disclosure
Attached drawing, the technical solution of the embodiment of the present disclosure is clearly and completely described.Obviously, described embodiment is this public affairs
The a part of the embodiment opened, instead of all the embodiments.Based on described embodiment of the disclosure, ordinary skill
Personnel's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the range of disclosure protection.
A kind of outdoor two elements three-phase power metering box of band protection of the utility model, including 1, two voltage of cluster parachute are mutual
Sensor 2, two current transformers 3, cabinet are provided with secondary connection panel 4 on cabinet, which is characterized in that two electric currents
Mutual inductor 3 is series at high pressure A, C route respectively, and the high pressure Same Name of Ends of two voltage transformers 2 is followed by through fuse 5 respectively
Enter A, C high-voltage circuit, the public leading-out terminal of two voltage transformers 2 accesses B high-voltage circuit after fuse 5, electricity
It current transformer 3 and connect with 4 line of secondary connection panel of cabinet for connecting externally measured circuit for voltage transformer 2 two times.Also
Packet two is horizontally set at the casting cylindrical body 6 of 1 lower section of cluster parachute, and the casting cylindrical body 6 is the hollow structure of both ends open,
The cluster parachute 1 and two casting 6 bottoms of cylindrical body are each provided with spring fastener, and top is provided with closure assemblies, the fusing
Device 5 is respectively arranged in the two casting cylindrical body 6 and cluster parachute 1.Two casting 6 two sides of cylindrical body are provided with silica gel sealing lid 7.
The spring fastener is that fastening is provided with sunk screw in copper insert, and volute spring composition is fixedly installed on sunk screw,
The closure assemblies being arranged at the top of the cluster parachute 1 are provided with depression hex bolts by fastening in a bronze medal blind nut, depression hex bolts with
It is provided with spring washer between copper blind nut and plain cushion is constituted.The closure assemblies of casting cylindrical body 6 are provided with copper by fastening in copper nut
Blind nut is constituted.
When specific implementation: the batch meter of the utility model is molten by being bumped into ontology by reasonable structure installation
Disconnected device 5 protects intrinsic voltage transformer 2, to reach the protective effect to entire route, two current transformers 3 with
Two voltage transformers 2 become an entirety, the height of two voltage transformers 2 using vacuum casting technique by epoxy resin
The primary end of pressure is connected inside its casting matrix with two current transformers 3, is not increasing excessive volume and is changing mutual inductor
Under the premise of shape rationally using and increase structure fuse 5 be set, so the utility model three so the utility model
The cluster parachute 1 and current transformer 3 and voltage transformer of high pressure port at the one of original 2 high-voltage end of voltage transformer is utilized
Setting casts cylindrical body 6 to install fuse 5 between 2, and the closure assemblies of the upper end of full skirt are nut type bayonet, 1 lower end of cluster parachute
Spring fastener is equipped with a spring connector lug, and spring connector lug, by the high-voltage end of connection voltage transformer 2, is in casting matrix
It is conveniently replaceable, for fuse 5 preferably with fusion tube, then fusion tube is put into cluster parachute 1 by the depression hex bolts for opening cluster parachute 1 upper end
Depression hex bolts is inside tightened, then depression hex bolts is wired to high-tension line to be measured, with 2 high pressure line end shape of voltage transformer
At power circuit；
The spring connector lug of two casting 6 bottom of cylindrical body namely two inner end spring fasteners is respectively in batch meter one
The high-voltage terminal of platform voltage transformer 2 connects, the top namely two outboard end closure assemblies copper nuts of amount casting cylindrical body 6
And nut cap composition, copper nut buckle are connect with the end P of current transformer 3 in batch meter interior lines, high voltage power supply passes through electric current
The end P of mutual inductor 3 is being connected by fusion tube with the high-voltage end of voltage transformer 2, constitutes an electrical circuit；
Once batch meter overload is short-circuit, the fuse 5 on route is then automatic to be disconnected to reach and protect batch meter other
The effect of equipment, when installation, only need for be inserted into fusion tube in two casting cylindrical bodies 6 and in cluster parachute 1, and when replacement opens umbrella
The spring of bottom can come up fusion tube bullet can facilitate completion to replace after the sealing cover of group 1 and two casting cylindrical bodies 6.
Two fusing chambers are set in the cabinet wall of 4 one side of secondary connection panel, have not only been convenient for changing but also beautiful proper.
Claims (4)
1. a kind of outdoor two elements three-phase power metering box of band protection, including cluster parachute, two voltage transformers, two electric currents are mutual
Sensor, cabinet are provided with secondary connection panel on cabinet, which is characterized in that two current transformers are series at height respectively
A, C route are pressed, the high pressure Same Name of Ends of two voltage transformers accesses A, C high-voltage circuit after fuse respectively, described
The public leading-out terminal of two voltage transformers accesses B high-voltage circuit, current transformer and voltage transformer two after fuse
It is secondary to be connect with the secondary connection panel line of cabinet for connecting externally measured circuit, it further include two being horizontally set under the cluster parachute
The fusing chamber of side, the fusing chamber are the hollow structure of both ends open, and the cluster parachute and two fusing bottom of chamber portions are each provided with bullet
Spring fastener, top are provided with closure assemblies, and the fuse is respectively arranged in the two fusing chamber and cluster parachute.
2. a kind of outdoor two elements three-phase power metering box of band protection according to claim 1, which is characterized in that two is molten
Silica gel sealing lid is provided on the outside of disconnected chamber.
3. a kind of outdoor two elements three-phase power metering box of band protection according to claim 2, which is characterized in that described
Two fusing chambers are two hollow casting cylindrical bodies.
4. a kind of outdoor two elements three-phase power metering box of band protection according to claim 2, which is characterized in that described
Two fusing chambers are set in the cabinet wall of secondary connection panel one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821067296.9U CN209102778U (en) | 2018-07-05 | 2018-07-05 | A kind of outdoor two elements three-phase power metering box of band protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821067296.9U CN209102778U (en) | 2018-07-05 | 2018-07-05 | A kind of outdoor two elements three-phase power metering box of band protection |
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| Publication Number | Publication Date |
|---|---|
| CN209102778U true CN209102778U (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821067296.9U Active CN209102778U (en) | 2018-07-05 | 2018-07-05 | A kind of outdoor two elements three-phase power metering box of band protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535525A (en) * | 2018-07-05 | 2018-09-14 | 湘潭市长诚互感器有限责任公司 | A kind of outdoor two elements three-phase power metering box of band protection |
-
2018
- 2018-07-05 CN CN201821067296.9U patent/CN209102778U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535525A (en) * | 2018-07-05 | 2018-09-14 | 湘潭市长诚互感器有限责任公司 | A kind of outdoor two elements three-phase power metering box of band protection |
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