A kind of dielectric dissipation factor standard
Technical field
Calibration equipment applied technical field is the utility model is related to, specially a kind of dielectric dissipation factor standard.
Background technology
Dielectric dissipation factor standard has been widely used as the Insulation monitoring instrument of power equipment, therefore, uses high pressure
The experiment that electric bridge is tested is also more and more, such as the dielectric loss of test insulating oil is gone with the high-precision electric bridges such as 2801;
With the insulating properties of automated media loss factor standard device detection power equipment;Etc. a series of experiment.Often after the test, have
Many operating personnel foster suspicion to the result tested.Such case, it may be possible to caused error is measured, including
The problem of failure or line and standard capacitor of electric bridge;But be also possible to be reflected is actual value.At this moment will be at once by electricity
Bridge send pilot scale institute, and electric bridge is verified, and can cause great data deviation.
Utility model content
The purpose of this utility model is to provide a kind of dielectric dissipation factor standard, can be to high-pressure medium loss measurent instrument
And high-pressure medium depletion capacitance electric bridge is calibrated, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme:A kind of dielectric dissipation factor standard, including
Explosion stack, main casing, capacitor, insulating barrier, insulation sleeve, cross screw bolt, insulator, explosionproof top cover and detection terminal, the master
Housing is internally provided with three capacitors, is connected in parallel between capacitor, and the inside of each capacitor is provided with explosion stack, prevents
The inside of booster is provided with cable, and cable at the top of capacitor by passing;The bottom of the main casing is installed with base,
The both ends of main casing are fixedly welded with holding clamp, and mounting hole is provided with holding clamp;The capacitor includes anti-detonation pressure
Lid, graphite cylinder, insulation crust, electrode, protection lead, anti-explosion groove, capacitor body, electrolyte and electric installation;It is described exhausted
The inside filling electrolyte of edge shell, capacitor body are immersed in electrolyte, are arranged on the inside of insulation crust, insulation crust
Bottom be provided with electric installation, electric installation is fixedly connected with capacitor body;The upper end of the insulation crust is provided with anti-explosion groove,
Anti-explosion groove is engaged with insulation crust, and the inside of anti-explosion groove is provided with graphite cylinder and protection lead, bottom and the electricity of graphite cylinder
The top of container fuse is electrically connected with;Explosion-proof gland is installed with the top of the anti-explosion groove, electrode is installed on explosion-proof gland,
Electrode runs through explosion-proof gland, and is connected with protection lead;The top of the main casing is provided with explosionproof top cover, explosionproof top cover and master
Housing snapping, safety switch and insulator are set on explosionproof top cover;Binding post, the outside of binding post are installed on the insulator
Insulation sleeve is wrapped up, explosionproof top cover is run through in the bottom of insulator, and inserts inside main casing;The bottom installation of the insulated column is conductive
Piece, the bottom surface of conducting strip are provided with electric conductor, and insulator, conducting strip are fixedly connected by cross screw bolt with electric conductor;The conduction
The bottom of body is provided with insulating barrier, and insulating barrier is fixed on the bottom of explosionproof top cover, and one end of cable is connected on electric conductor, main casing
The both sides of body are provided with detection terminal.
A kind of dielectric dissipation factor standard according to claim, it is characterised in that:The insulation crust uses
Aluminium alloy is made, its outer surface rust prevention by applying liquid material paint, and 2mm gap is provided between insulation crust and anti-explosion groove.
A kind of dielectric dissipation factor standard according to claim, it is characterised in that:The outside of the cable
Wrapped up using rubber sleeve the junction of parcel wear resistant plastic, cable and electric conductor.
A kind of dielectric dissipation factor standard according to claim, it is characterised in that:The main casing is stainless
Steel material, silicagel pad is set on the madial wall of main casing.
A kind of dielectric dissipation factor standard according to claim, it is characterised in that:The capacitor body is adopted
It is made with combination electrode material and insulating materials, the outer surface of electrode is coated with polypropylene metallized film.
A kind of dielectric dissipation factor standard according to claim, it is characterised in that:Lead between the capacitor
Overvoltage protection is in parallel.
Compared with prior art, the beneficial effects of the utility model are:
(1) this dielectric dissipation factor standard, insulation crust are made of aluminium alloy, sturdy and durable, and quality is light and handy, are had
Good ductility, its outer surface rust prevention by applying liquid material paint, thus there are excellent insulating properties, between insulation crust and anti-explosion groove
Gap provided with 2mm, when preventing from expanding with heat and contract with cold, it is broken between insulation crust and anti-explosion groove, sets anti-explosion groove to avoid temperature
It is too high, cause capacitor to burst, so as to cause bad hidden danger;The outer wrap wear resistant plastic of cable, is played to a line
The junction of protective effect, cable and electric conductor is wrapped up using rubber sleeve, for a long time in use, avoid cable and conduction
, there is short circuit phenomenon in junction between body;Main casing is stainless steel, and silicagel pad is set on the madial wall of main casing, is risen
To shielding action, avoid external magnetic field from producing interference to standard, cause the inaccuracy of testing result;Capacitor body is using multiple
Composite electrode material and insulating materials are made, and to reduce the capacity loss in work, the outer surface of electrode is coated with polypropylene gold
Categoryization film, there is strong self-healing ability, temperature rise is low, heating is small, service life length;Between capacitor by voltage protection simultaneously
Connection, type power cut-off device is broken using pressure, has overload and error protection function.
(2) this dielectric dissipation factor standard, space is saved, it is in light weight, it is easily handled, it is easy for installation succinct, it is equipped with bottom
Seat, it is easy to the carrying and installation of standard, coordinates holding clamp and mounting hole, reduces the installation darkness of standard;Stability
The high, degree of accuracy (absolute value) height, so whether laboratory or field work, is all a convenient normal component.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model;
Fig. 2 is top view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 is capacitor schematic diagram of the present utility model.
In figure:1 cable;2 explosion stacks;3 bases;4 main casings;5 capacitors;51 explosion-proof glands;52 graphite cylinders;53 is exhausted
Edge shell;54 electrodes;55 protection leads;56 anti-explosion grooves;57 capacitor bodies;58 electrolyte;59 electric installations;6 safety switches;
7 electric conductors;8 binding posts;9 conducting strips;10 insulation sleeves;11 insulators;12 cross screw bolts;13 explosionproof top covers;14 insulating barriers;15 is solid
Determine fixture;16 mounting holes;17 detection terminals.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-4 are referred to, the utility model provides a kind of technical scheme:A kind of dielectric dissipation factor standard, including it is anti-
Booster 2, main casing 4, capacitor 5, insulating barrier 14, insulation sleeve 10, cross screw bolt 12, insulator 11, explosionproof top cover 13 and detection
Terminal 17, main casing 4 are internally provided with three capacitors 5, and main casing 4 is stainless steel, is set on the madial wall of main casing 4
Silicagel pad is put, plays shielding action, avoids external magnetic field from producing interference to standard, causes the inaccuracy of testing result;Electric capacity
It is connected in parallel between device 5, the inside of each capacitor 5 is provided with explosion stack 2, explosion-proof is served, for a long time in use, can
Prevent capacitor 5 from exploding, the inside of explosion stack 2 is provided with cable 1, the outer wrap wear resistant plastic of cable 1, to a company
Line 1 serves protective effect, and cable 1 is passed by the top of capacitor 5;The bottom of main casing 4 is installed with base 3, electricity
It is in parallel by voltage protection between container 5, type power cut-off device is broken using pressure, there is overload and error protection machine
Can, the both ends of main casing 3 are fixedly welded with holding clamp 15, mounting hole 16 are provided with holding clamp 15;Capacitor 5 includes
Explosion-proof gland 51, graphite cylinder 52, insulation crust 53, electrode 54, protection lead 55, anti-explosion groove 56, capacitor body 57, electrolysis
Matter 58 and electric installation 59;2mm gap is provided between insulation crust 53 and anti-explosion groove 56, when preventing from expanding with heat and contract with cold, insulation is outer
It is broken between shell 53 and anti-explosion groove 56, sets anti-explosion groove 56 to avoid temperature too high, cause capacitor 5 to burst, so as to cause
Bad hidden danger;The inside filling electrolyte 58 of insulation crust 53, insulation crust 53 are made of aluminium alloy, sturdy and durable, matter
Amount is light and handy, has good ductility, its outer surface rust prevention by applying liquid material paint, thus has excellent insulating properties, capacitor core
Son 57 is immersed in electrolyte 57, is arranged on the inside of insulation crust 53, the bottom of insulation crust 53 is provided with electric installation 59, led
Electric installation 59 is fixedly connected with capacitor body 57;Capacitor body 57 made using combination electrode material and insulating materials and
Into to reduce the capacity loss in work, the upper end of insulation crust 53 is provided with anti-explosion groove 56, and anti-explosion groove 56 is stung with insulation crust 53
Close, the inside of anti-explosion groove 56 is provided with graphite cylinder 52 and protection lead 55, bottom and the capacitor body 57 of graphite cylinder 52
Top be electrically connected with;The top of anti-explosion groove 56 is installed with explosion-proof gland 51, and electrode 54, electrode are installed on explosion-proof gland 51
54 run through explosion-proof gland 51, and are connected with protection lead 55;The outer surface of electrode 54 is coated with polypropylene metallized film, has
Strong self-healing ability, temperature rise is low, heating is small, service life length;The top of main casing 4 is provided with explosionproof top cover 13, explosionproof top cover 13 with
The snapping of main casing 4, safety switch 6 and insulator 11 are set on explosionproof top cover 13;Binding post 8, wiring are installed on insulator 11
Post 8 is used for connecting outer lead, the outer wrap insulation sleeve 10 of binding post 8, and explosionproof top cover 13 is run through in the bottom of insulator 11, and
Insert inside main casing 4;The bottom installation conducting strip 9 of insulated column 11, the bottom surface of conducting strip 9 is provided with electric conductor 7, cross screw bolt
12 are fixedly connected with insulator 11, conducting strip 9 with electric conductor 7;The bottom of electric conductor 7 is provided with insulating barrier 14, and insulating barrier 14 is fixed
In the bottom of explosionproof top cover 13, one end of cable 1 is connected on electric conductor 7, and electric conductor 7 and conducting strip 9 are used for electric action,
Incisal guide excellent electrical properties, the junction of cable 1 and electric conductor 7 is wrapped up using rubber sleeve, for a long time in use, avoiding cable
, there is short circuit phenomenon in junction between 1 and electric conductor 7;The both sides of main casing 4 are provided with detection terminal 17, can pass through detection
Terminal 17 is accurately detected;Space is saved, it is in light weight, it is easily handled, it is easy for installation succinct, base 3 is equipped with, is easy to standard
The carrying and installation of device, coordinate holding clamp 15 and mounting hole 16, reduce the installation darkness of standard;Stability is high, accurate
(absolute value) height is spent, so whether laboratory or field work, is all a convenient normal component.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.