CN208581051U - A kind of solid heat collecting system with heater damage ratio protective device - Google Patents
A kind of solid heat collecting system with heater damage ratio protective device Download PDFInfo
- Publication number
- CN208581051U CN208581051U CN201821121609.4U CN201821121609U CN208581051U CN 208581051 U CN208581051 U CN 208581051U CN 201821121609 U CN201821121609 U CN 201821121609U CN 208581051 U CN208581051 U CN 208581051U
- Authority
- CN
- China
- Prior art keywords
- heater
- current transformer
- breaker
- protective device
- phase
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of solid heat collecting systems with heater damage ratio protective device, the heater of solid heat collecting system uses the wye connection of series-parallel system, and it is connected to three phase mains, heater is set between heater and three phase mains and damages ratio protective device, it includes breaker that heater, which damages ratio protective device, current transformer, comprehensive protection device, three-phase power output end A, B, C is connected to three input terminals of breaker respectively, three output terminals of breaker respectively with inlet wire A, B, current transformer connection on C, current transformer in every phase is connected to corresponding heater, current transformer is connected to comprehensive protection device, the connection of the tripping coil of comprehensive protection device and breaker.The utility model feature is: the damaged condition of heater is determined by the current value of measurement three-phase current difference, in part heater damage and in the case where not up to protective current, initiate protection act in time, heater effectively prevent to continue to damage.
Description
Technical field
The utility model relates to heat storage technology fields, and in particular to a kind of consolidating with heater damage ratio protective device
Body hold over system.
Background technique
The heater of existing high pressure solid regenerative apparatus only has common overcurrent protection, when there is three-phase current unbalance
When, protection act can't be generated, existing high pressure solid regenerative apparatus all uses the wye connection of series-parallel system substantially,
That is: heater is connected again after parallel connection, after a part of heater damage in parallel, can make the heater of this parallel connection
Overall electrical resistance becomes larger, i.e. R=r/N, and when N becomes smaller, R can become larger, and R and N are the relationships of inverse ratio, can't reach protection electricity at this time
Stream.
Utility model content
Utility model aims to solve the damage of part heater but when the case where not up to protective current can and
The problem of Shi Faqi protection act, provides a kind of solid heat collecting system with heater damage ratio protective device.
The utility model technical solution used for the above purpose is: one kind is with heater damage ratio protection
The solid heat collecting system of device, the heater of solid heat collecting system use the wye connection of series-parallel system, and and three phase mains
Connection is arranged heater and damages ratio protective device between the heater and three phase mains, the heater damage ratio is protected
Protection unit includes breaker, current transformer, comprehensive protection device, described three-phase power output end A, B, C respectively with breaker
Three input terminal connections, three output terminals of the breaker are connected to the current transformer on inlet wire A, B, C respectively, often
Current transformer in phase is connected to corresponding heater, and the current transformer is connected to comprehensive protection device, the comprehensive protection device
It is connect with the tripping coil of breaker.
The breaker is connected to zero curve, and the current transformer is connected to ground wire, and the comprehensive protection device and firewire connect
It is logical.
The utility model is characterized in that: determining the damage feelings of heater by the current value of measurement three-phase current difference
Condition, in part heater damage and in the case where not up to protective current, initiate protection act in time, effectively prevent heater
Continue to damage.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1, heater 2, three phase mains 3, breaker 4, current transformer 5, comprehensive protection device.
Specific embodiment
If used some vocabulary in the specification and claims to censure specific components, those skilled in the art are answered
It is understood that hardware manufacturer may call the same component with different nouns, this specification and claims are not with name
The difference of title is such as being led to as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In ", " substantially " refers within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect, and specification subsequent descriptions are preferred embodiment of the present invention, so
The description is to illustrate the general principles of this utility model, being not intended to limit the scope of the utility model, this reality
As defined by the appended claims with novel protection scope.
The utility model is described in further detail below in conjunction with attached drawing, but not as the restriction to the utility model.
The utility model is a kind of solid heat collecting system that ratio protective device is damaged with heater, solid heat collecting system
Heater 1 using the wye connection of series-parallel system, and be connected to three phase mains 2, the heater 1 and three phase mains 2 it
Between setting heater damage ratio protective device, heater damage ratio protective device includes breaker 3, current transformer
4, comprehensive protection device 5,2 output terminals A of three phase mains, B, C are connected to three input terminals of breaker 3 respectively, described disconnected
Three output terminals of road device 3 are connected to the current transformer 4 on inlet wire A, B, C respectively, and the current transformer 4 in every phase is connected to
Corresponding heater 1, the current transformer 4 are connected to comprehensive protection device 5, the trip line of the comprehensive protection device 5 and breaker 3
Circle connection, the breaker 3 are connected to zero curve, and the current transformer 4 is connected to ground wire, the comprehensive protection device 5 and firewire
Connection.
In the case where inlet wire AB=BC=AC, if three-phase equilibrium, central point is that no electric current passes through, at this point, passing through
It is the same, i.e. electric current A=electric current B=electric current C that current transformer 4, which can measure electric current A, electric current B, electric current C,；If three-phase is uneven
Electric current is sent to comprehensive protection device 5 by weighing apparatus, current transformer 4, comprehensive when three-phase electricity flow valuve reaches set unbalanced value
The electric current that closing protector 5 will test is sent to the tripping coil of breaker 3, and comprehensive protection device is initiated negative phase-sequence overcurrent protection, caused
Trip protection can find the damaged condition of heater 1 at the first time, heater is effectively prevent to continue to damage.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
Be confined to this, anyone skilled in the art within the technical scope of the present disclosure, according to the utility model
Technical solution and its inventive concept be subject to equivalent substitution or change, should be covered within the scope of the utility model.
Claims (2)
1. a kind of solid heat collecting system with heater damage ratio protective device, it is characterised in that: solid heat collecting system
Heater (1) uses the wye connection of series-parallel system, and is connected to three phase mains (2), the heater (1) and three phase mains
(2) heater is set between and damages ratio protective device, the heater damage ratio protective device includes breaker (3), electricity
Current transformer (4), comprehensive protection device (5), three phase mains (2) output terminals A, B, C are inputted with three of breaker (3) respectively
Terminal connection, three output terminals of the breaker (3) are connected to the current transformer (4) on inlet wire A, B, C respectively, every phase
On current transformer (4) be connected to corresponding heater (1), the current transformer (4) is connected to comprehensive protection device (5), described
Comprehensive protection device (5) is connect with the tripping coil of breaker (3).
2. a kind of solid heat collecting system with heater damage ratio protective device according to claim 1, feature
Be: the breaker (3) is connected to zero curve, and the current transformer (4) is connected to ground wire, the comprehensive protection device (5) with
Firewire connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121609.4U CN208581051U (en) | 2018-07-16 | 2018-07-16 | A kind of solid heat collecting system with heater damage ratio protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121609.4U CN208581051U (en) | 2018-07-16 | 2018-07-16 | A kind of solid heat collecting system with heater damage ratio protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581051U true CN208581051U (en) | 2019-03-05 |
Family
ID=65510624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821121609.4U Active CN208581051U (en) | 2018-07-16 | 2018-07-16 | A kind of solid heat collecting system with heater damage ratio protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208581051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515028A (en) * | 2019-08-23 | 2019-11-29 | 宁波迦南智能电气股份有限公司 | A kind of single-phase electric energy meter terminal fever monitoring method |
-
2018
- 2018-07-16 CN CN201821121609.4U patent/CN208581051U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515028A (en) * | 2019-08-23 | 2019-11-29 | 宁波迦南智能电气股份有限公司 | A kind of single-phase electric energy meter terminal fever monitoring method |
| CN110515028B (en) * | 2019-08-23 | 2021-08-31 | 宁波迦南智能电气股份有限公司 | Method for monitoring terminal heating of single-phase electric energy meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110445109B (en) | Method and device for rapidly eliminating ferromagnetic resonance of voltage transformer | |
| US9225159B2 (en) | Three-phase ground fault circuit interrupter | |
| KR20170131705A (en) | Method and apparatus for identifying phase-out of circuit breakers based on voltage | |
| Firouzi et al. | Bridge-type superconducting fault current limiter effect on distance relay characteristics | |
| CN102662095A (en) | Three-phase voltage sampling circuit | |
| CN102680766A (en) | Three-phase voltage sampling circuit for control and protection switches | |
| CN207889556U (en) | A kind of charging equipment and its earth leakage protective control circuit | |
| CN208581051U (en) | A kind of solid heat collecting system with heater damage ratio protective device | |
| Calero | Rebirth of negative-sequence quantities in protective relaying with microprocessor-based relays | |
| CN109188205A (en) | A kind of distance measuring method of the distance protection based on petal type power grid | |
| CN105529698B (en) | A kind of Intelligent electric gas holder of band self-checking function | |
| CN103928936A (en) | Converter and converting device for reducing effect of zero-sequence current on transformer | |
| CN110907797A (en) | Method and apparatus for circuit detection | |
| CN205544257U (en) | From switching surge protector | |
| CN102944834B (en) | A kind of detection method of prepayment meter definite purpose circuit breaker and device | |
| CN202870174U (en) | Low energy consumption circuit for detecting insulating resistance of DC bus | |
| Wagh et al. | Extraction of DC component and harmonic analysis for protection of power transformer | |
| CN105098726B (en) | A kind of power system series capacitor overvoltage fast protection method | |
| CN204179639U (en) | Intelligent leakage circuit breaker | |
| CN202562994U (en) | Three-phase voltage sampling circuit used for control and protection switch | |
| CN107785882A (en) | A kind of more level active compensation devices of three-phase four-arm and control method | |
| CN201266833Y (en) | On-line pre-detection circuit and device for protection of shorted to earth of frequency changer output end | |
| CN203014692U (en) | Rectifying device used for inverter experiment | |
| CN204188724U (en) | A kind of on-line measurement device of electric power system surge protector insulation resistance | |
| CN110261721B (en) | Single-phase grounding judgment and phase judgment method in active compensation mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |