CN206135426U - Alternate load transfer terminating set based on match of stable state wave form - Google Patents
Alternate load transfer terminating set based on match of stable state wave form Download PDFInfo
- Publication number
- CN206135426U CN206135426U CN201621132850.8U CN201621132850U CN206135426U CN 206135426 U CN206135426 U CN 206135426U CN 201621132850 U CN201621132850 U CN 201621132850U CN 206135426 U CN206135426 U CN 206135426U
- Authority
- CN
- China
- Prior art keywords
- module
- circuitry
- phases
- phase
- current
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides an alternate load transfer terminating set based on match of stable state wave form, the terminating set is including exchanging main circuit module, sampling module, instruction operation module, host system and communication interface module, host system respectively with communication interface module, sampling module, instruction operation module link to each other, the sampling module with the instruction operation module still with it links to each other to exchange main circuit module. The utility model discloses the alternate load transfer terminating set based on match of stable state wave form that embodiment provided can realize avoiding the user to have a power failure by alternate load transfer in commutation operation process fast, can divide in commutation operation breakpoint and closing point in the twinkling of an eye the electric current become more and more fragmentary, avoid producing great impulse current, reduce the impact to commutation device body and consumer. The purpose is the three -phase unbalanced load through automatic adjustment distribution transformer and low pressure circuit, reduces energy losses, and the single -phase overload problem of distribution transformer is solved to less low -voltage problem.
Description
Technical field
This utility model is related to low-voltage distribution and field of energy-saving technology, more particularly to a kind of phase being fitted based on stable state waveform
Between load transfer termination.
Background technology
A phase, B phase, C phase three-phase phase line and zero line are generally comprised in current low-voltage circuit, if three-phase circuit is negative
Lotus is uneven, then the electric energy loss that can cause distribution transformer and low-voltage circuit increases, and may cause low-voltage problem, very
To the single-phase winding for burning transformator.
Currently, the method that three-phase load unbalance is automatically adjusted has the alternate flying capcitor method of mains side, dynamic reactive to mend
Compensation method, load-side load transfer method etc..Wherein, the principle of alternate flying capcitor method is by bridging on low-voltage bus bar
Capacitor, from the lighter phase shunt current of the heavier opposite duty ratio of load, makes distribution low-voltage outlet three-phase current put down substantially
Weighing apparatus.The advantage of the method is that adjusting means is fairly simple, installs more convenient, has the disadvantage that distribution transformer three-phase electricity can only be adjusted
The imbalance of stream, it is impossible to adjust the three-phase current unbalance of low-voltage circuit.Dynamic reactive rate compensation method is to research and develop in recent years
New method, its principle is similar to alternate flying capcitor method, and its advantage is both to have adjusted current imbalance, also adjusts voltage uneven
Weighing apparatus.The advantage of the method is multiple functional, adjusts fine, and fast response time, shortcoming is also can only to adjust distribution transformer three-phase
The imbalance of electric current, it is impossible to adjust the three-phase current unbalance of low-voltage circuit, and device power dissipation ratio itself is higher, and cost compares
It is high.
The principle of load-side load transfer method is using several automatic commutation ends for being installed on single-phase user's branched line
End, by User Part load from load it is heavier be mutually automatically transferred to the lighter phase of duty ratio, so as to realize distribution transformer
Outlet and circuit three-phase current are in a basic balance, and the method can reduce the electric energy loss of transformator, and the electric energy of circuit can be reduced again
Loss, and cost is than relatively low.
At present conventional alternate load transfer method is using zero passage phase-selecting method, i.e., in ABC three-phase circuits, to work as load
Disjunction phase during the current waveform zero passage of heavier current phase, closes when the lighter target phase voltage waveform zero passage of duty ratio
The phase.The problem of the method is, due to circuit disjunction after, there is induced electromotive force in load side electrical circuitry, when target phase voltage mistake
When zero, the voltage of closing point is simultaneously not zero, circuit closure moment, and the larger electric current of meeting producing ratio is produced to electrical equipment or electrical equipment
Life is than larger impact, or produces switching overvoltage, affects normally using for electrical equipment, or causes the quality of power supply to decline.
Utility model content
The purpose of this utility model embodiment is to provide a kind of alternate load transfer being fitted based on stable state waveform eventually
End device, can quickly realize alternate load transfer, it is to avoid user has a power failure in commutation operating process；Can be in commutation operation
Breakpoint and closing point immediate current go to zero, it is to avoid produce larger dash current, realize alternate load smooth transfer, reduce
Impact to commutation device body and electrical equipment.Purpose is born by the three-phase of adjust automatically distribution transformer and low-voltage circuit
Lotus is uneven, reduces electric energy loss, and less low-voltage problem solves the problems, such as distribution transformer one-phase overload.
For achieving the above object, this utility model provides a kind of alternate load transfer terminal dress being fitted based on stable state waveform
Put, the termination includes exchange main circuit module, sampling module, command operating module, main control module and communication interface mould
Block, the main control module is connected respectively with the communication interface modules, sampling module, command operating module, the sampling module
Also it is connected with the main circuit module that exchanges with the command operating module, wherein：The exchange main circuit module includes power supply
Lateral circuit, on-off circuit and load side electrical circuitry, the power supply lateral circuit includes A circuitry phases, B circuitry phases, C circuitry phases in parallel,
The on-off circuit includes the magnetic latching relay corresponding with each circuitry phase, and the load side electrical circuitry includes Current Mutual Inductance
Device, voltage transformer and load-side lead-out terminal；The A circuitry phases, B circuitry phases, C circuitry phases structure it is identical, including defeated
Enter terminal and voltage transformer；The communication interface modules is used to receive the commutation switched from current circuitry phase to target circuitry phase
Instruction, and commutation instruction is sent to the main control module；The sampling module is used to gather in the load side electrical circuitry
The voltage signal of voltage transformer in the current signal and the collection current circuitry phase of current transformer；The main control module
Including timer and for controlling the chronograph control unit that the timer is turned on and off, the timer is used to respond institute
The control instruction of chronograph control unit is stated, the transformation period of the current signal of current transformer in the load side electrical circuitry is recorded
And record the transformation period of the voltage signal of voltage transformer in the current circuitry phase；The command operating module be used for
Each described magnetic latching relay transmits disjunction instruction or the close command that the main control module is assigned.
Further, the A circuitry phases, B circuitry phases, C circuitry phases also include fuse or air switch.
Further, the termination also includes power module, data memory module and display keyboard circuit module, its
In, the power module is used to be powered for the modules in the termination, the display keyboard circuit module and described
Data memory module is connected with the main control module.
Further, also include in the main control module for the time of the timer record to be carried out with Preset Time
The logic matching unit of matching.
Further, when also including in the main control module for the break of the magnetic latching relay or closure
Between the amending unit that is modified.
The technical scheme provided from above this utility model embodiment, this utility model embodiment is by negative
The current signal of current transformer is detected in load lateral circuit, may thereby determine that the time point of current signal zero passage.By electricity
Breakpoint of the time point of stream signal zero passage as current phase, it is ensured that go to zero in the immediate current of circuit breakpoint, no
Larger electric current can be produced in breakpoint.Additionally, after circuit disjunction, by the voltage letter to voltage transformer in target phase
Number and load side electrical circuitry in the induced electromotive force signal of voltage transformer detected, in may thereby determine that target circuitry phase
The voltage time point equal with the voltage of load-side induced electromotive force, the closing time point that the time point is defined as into target phase is just
Can ensure that the immediate current in target circuitry phase closing point goes to zero, larger electric current will not be produced in closing point, so as to
Enough protect electrical equipment.
Further, the induced electromotive force that described load-side is produced elapses can gradually decay to 0 over time.Electromotive force
In a cycle that induced electromotive force is produced, its waveform is approximate with the voltage waveform in circuitry phase in the ban unanimously (namely
Ignore its pad value with the time), can approximately replace load-side induced electromotive force waveform with current phase voltage waveform.For letter
Change control circuit, it may be determined that the piezoelectric voltage of the target phase time point equal with the voltage of current phase, the time point is defined as
The closing time point of target phase.
Description of the drawings
Fig. 1 is the voltage oscillogram in this utility model embodiment after alternating current circuit disjunction；
Fig. 2 is from A phases to the commutation process oscillogram of B phases in this utility model embodiment；
Fig. 3 is from A phases to the commutation process oscillogram of C phases in this utility model embodiment；
Fig. 4 is to shift the structure of termination based on the alternate load of stable state waveform fitting in this utility model embodiment
Schematic diagram；
Fig. 5 is the circuit diagram that main circuit module is exchanged in this utility model embodiment.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in this utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in this utility model embodiment is clearly and completely described, is shown
So, described embodiment is only a part of embodiment of this utility model, rather than the embodiment of whole.Based on this
Embodiment in utility model, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, should all belong to the scope of this utility model protection.
This utility model provides a kind of alternate load transfer termination being fitted based on stable state waveform.See also figure
4 and Fig. 5, the termination includes exchange main circuit module 1, sampling module 3, command operating module 4, main control module 6 and leads to
Letter interface module 8, the main control module 6 is connected respectively with the communication interface modules 8, sampling module 3, command operating module 4,
The sampling module 3 and the command operating module 4 are also connected with the main circuit module 1 that exchanges.
In the present embodiment, the exchange main circuit module 1 includes power supply lateral circuit, on-off circuit and load-side electricity
Road, wherein, the power supply lateral circuit includes A circuitry phases, B circuitry phases, C circuitry phases in parallel, the on-off circuit include with
The corresponding magnetic latching relay 14,18,112 of each circuitry phase, the load side electrical circuitry includes that current transformer 113, voltage is mutual
Sensor 114 and load-side lead-out terminal 115, the A circuitry phases, B circuitry phases, C circuitry phases structure it is identical, including input
Son 11,15,19 and voltage transformer 13,17,111.
Refer to Fig. 1.In the present embodiment, the voltage signal in each circuitry phase, i.e. stable state waveform is sinusoidal wave form.
The phase place of the voltage signal in three-phase circuit is 120 ° of difference.In synchronization, there can only be a circuitry phase in closure state,
Other two circuitry phases are in disjunction state.Assume that current A circuitry phases are in disjunction shape in closure state, B phases and C circuitry phases
State.So after A circuitry phases are in sometime disjunction, induced electromotive force, i.e. transient-wave can be produced in load-side, in Fig. 1
Dotted line is the waveform of induced electromotive force.It is seen in fig. 1, that the induced electromotive force produced in load-side after A circuitry phase disjunctions
Passage over time can gradually decay to 0.In the present embodiment, in a cycle that induced electromotive force is produced, its ripple
Shape consistent (namely ignoring its pad value with the time) approximate with the voltage waveform in A circuitry phases, can use A phase voltage waveforms
It is approximate to replace load-side induced electromotive force waveform.So, equivalent to after A circuitry phase disjunctions, one can also be continued in load-side
The normal voltage waveform in individual cycle.
Accompanying drawing 2 is referred to, the moment of the zero crossing of current signal 200 of A circuitry phases is T0 and the voltage letter of T2, A circuitry phase
The moment of numbers 100 zero crossing is T1.From Figure 2 it can be seen that at the T1 moment, when 100 zero passage of voltage signal, current signal 200 is simultaneously
It is not zero.Therefore, if in T1 moment disjunction A circuitry phases, then breakpoint still has larger electric current, so can be to load
The electrical equipment of side produces infringement.In the present embodiment, at the T2 moment, that is, disjunction A phases electricity during 200 zero passage of current signal
Road, the immediate current of breakpoint goes to zero.And now also produce in load side electrical circuitry as shown in phantom in Figure 2 induct it is electronic
Gesture.In order in B circuitry phase closing points, the voltage of power supply lateral circuit can be identical with the induced electromotive force voltage of load side electrical circuitry,
At the T3 moment as shown in Figure 2, that is, the phase of voltage waveform 300 being input into B circuitry phases when the voltage waveform of induced electromotive force
B circuitry phases are closed during friendship.So, when B circuitry phases are closed, the voltage of mains side is just equal with the voltage of load-side, so as to close
The immediate current of point goes to zero.For simplified control circuit, it may be determined that the voltage of the B phases time point equal with the voltage of A phases,
The time point is defined as into the closing time point of B phases.After B circuitry phases closure, B phase currents 500 just can be produced in circuit.
Similarly, Fig. 3 is referred to, after A circuitry phase disjunctions, at the T4 moment, that is, the induced electromotive force of load-side
When the voltage waveform 400 that voltage waveform is input into C circuitry phases intersects, C circuitry phases are closed, so that the immediate current of closing point
Go to zero.It is for simplified control circuit, it may be determined that the voltage of the C phases time point equal with the voltage of A phases, the time point is true
It is set to the closing time point of target phase.After C circuitry phases closure, C phase currents 600 just can be produced in circuit.
See also Fig. 4 and Fig. 5.In the present embodiment, the communication interface modules 8 is used to receive from current phase electricity
The commutation instruction of road direction target circuitry phase switching, and commutation instruction is sent to the main control module 6.For the ease of retouching
State, it is assumed that the current phase is A phases, the target is mutually B phases.So, the main control module 6 will pass through sampling module collection institute
State the current signal of current transformer 113 in load side electrical circuitry and gather the electricity of voltage transformer 13 in the current circuitry phase
Pressure signal.
In the present embodiment, the main control module 6 includes timer and is turned on and off for controlling the timer
Chronograph control unit, the timer is used to respond the control instruction of the chronograph control unit, records the load
The transformation period of the current signal of current transformer and the electricity of voltage transformer in the current circuitry phase is recorded in lateral circuit
The transformation period of pressure signal.Specifically, when detect current waveform 200 as shown in Figure 2 from be just changed into 0 when, i.e., it is main in T0 points
Control module 6 starts the disjunction Timer Program in chronograph control unit.Voltage waveform 100 in Fig. 2 is detected is by negative change
For 0 when, i.e., in T1 points, main control module 6 start chronograph control unit in closure Timer Program.So, timer just divides
It is other that timing is carried out to breaking course and closing course, wherein, the starting point that timing is carried out to breaking course is T0, is that closing course is entered
The starting point of row timing is T1.
In the present embodiment, the frequency of voltage signal and current signal is 50Hz in circuit, then voltage signal and
The time span of the half period of current signal is just 10 milliseconds.So, when the break recorded in timer is equal to 10-Tr
When, main control module 6 shifts to an earlier date the main contacts S of the corresponding magnetic latching relay 14 of disjunction A circuitry phases by command operating module 4.Its
In, Tr for magnetic latching relay disjunction/closing time, representative value be 5 milliseconds, i.e., magnetic latching relay is assigned disjunction or
After person's close command, through 5 milliseconds, main contacts S just can be by circuit disjunction or closure.So, from the beginning of T0, through 5 milliseconds
Main control module 6 will pass through command operating module 4 and assign disjunction instruction to magnetic latching relay 14, so as in the T2 of Fig. 2 point disjunction A
Circuitry phase.
In the present embodiment, the timer in the main control module 6 starts meter to B circuitry phase closing courses from the T1 moment
When.Because the phase contrast between the voltage signal of A circuitry phases and the voltage signal of B circuitry phases is 120 °, then be calculated Fig. 2
Differential seat angle is 150 ° between middle T3 moment and T1 moment, then the time difference between T1 and T3 is (150/360) × 20=8.33
Millisecond.So, when the timing time in timer for closing course is equal to 8.33-Tr, the main control module 6 will pass through finger
Make operation module 4 close the main contacts S of the corresponding magnetic latching relay 18 of B circuitry phases in advance, so, from the beginning of T1, pass through
3.33 milliseconds of main control modules 6 will pass through command operating module 4 and assign disjunction instruction to magnetic latching relay 18, so as to Fig. 2's
T3 points close B circuitry phases.
In the present embodiment, it is also similar with said process to the commutation process of C circuitry phases from A circuitry phases, only exist
During closure C circuitry phases, the time that timer is calculated is different.Fig. 3 is referred to, when break recorded in timer etc.
When 10-Tr, main control module 6 is touched by the master that command operating module 4 shifts to an earlier date the corresponding magnetic latching relay 14 of disjunction A circuitry phases
Point S.Wherein, Tr is the disjunction/closing time of magnetic latching relay, and representative value is 5 milliseconds, i.e., magnetic latching relay is being assigned
After disjunction or close command, through 5 milliseconds, main contacts S just can be by circuit disjunction or closure.So, from the beginning of T0, pass through
5 milliseconds of main control modules 6 will pass through command operating module 4 and assign disjunction instruction to magnetic latching relay 14, so as in the T2 of Fig. 2 points
Disjunction A circuitry phases.
In the present embodiment, the timer in the main control module 6 starts meter to C circuitry phase closing courses from the T1 moment
When.Because the phase contrast between the voltage signal of A circuitry phases and the voltage signal of C circuitry phases is 210 °, then be calculated Fig. 3
Differential seat angle is 210 ° between middle T4 moment and T1 moment, then the time difference between T1 and T4 is (210/360) × 20=11.67
Millisecond.So, when the timing time in timer for closing course is equal to 11.67-Tr, the main control module 6 will pass through
Command operating module 4 closes in advance the main contacts S of the corresponding magnetic latching relay 112 of C circuitry phases.So, from the beginning of T1, pass through
6.67 milliseconds of main control modules 6 will pass through command operating module 4 and assign disjunction instruction to magnetic latching relay 112, so as to Fig. 3's
T4 points close C circuitry phases.
Therefore, the command operating module 4 is used to transmit the main control module 6 to magnetic latching relay each described
The disjunction instruction assigned or close command.
In one embodiment of this utility model, the A circuitry phases, B circuitry phases, C circuitry phases also include fuse 12,
16th, 110, the fuse is limited the maximum current in each circuitry phase, when electric current exceedes KB limit in circuit,
Fuse will fuse, so as to the electronic device in protection circuit is without damage.The fuse may be replaced by air and open
Close.
In one embodiment of this utility model, the termination also includes power module 2, data memory module 5
With show keyboard circuit module 7, wherein, the power module 2 is used to be powered for the modules in the termination, described
Show that keyboard circuit module 7 and the data memory module 5 are connected with the main control module 6.Wherein, the display keyboard electricity
, used as main control module 6 and extraneous interactive module, user is by the display keyboard circuit module 7 to the master control for road module 7
Module 6 assigns various instructions, and the main control module 6 displays to the user that present apparatus also by the display keyboard circuit module 7
Parameters.The data memory module 5 then stores the data that termination is produced in data handling procedure is carried out.
In one embodiment of this utility model, also include in the main control module 6 for by the timer record
The logic matching unit that matched with Preset Time of time.The logic matching unit is directed to different circuitry phases, setting
Preset Time is also different.For example, for A circuitry phases to B circuitry phase commutations when, the logic matching unit be directed to breaking course,
Preset Time is set to into 5 milliseconds, so, when the break of timer record reaches 5 milliseconds, main control module 6 just leads to
Cross command operating module 4 and assign disjunction instruction to magnetic latching relay 14, so as in the T2 of Fig. 2 point disjunction A circuitry phases.Additionally,
The Preset Time arranged in the logic matching unit is for example also 3.33 milliseconds and 6.67 milliseconds.
In one embodiment of this utility model, also include in the main control module 6 for keeping relay to the magnetic
The amending unit that the break or closing time of device is modified.Specifically, as shown in Fig. 2 amending unit control meter
When device record start to ts actual time that electric current is zero from T0.Because the theoretical time difference of T2 points and T0 points is 10 milliseconds, so,
The correction time is Toff=10-ts in breaking course.So from the beginning of T0 points, the corresponding magnetic latching relay 14 of A circuitry phases
The time point for carrying out breaking operation is just 10-Tr+Toff.B phases and C phase magnetic latching relays are calculated using same method
The disjunction correction time.
For the closure correction time similarly, for A phases to B phases, as shown in Fig. 2 amending unit control timing
Device record starts in load-side current transformer time ts1 of the current signal by liter above freezing from T1.Because T3 points and T1 points
The theoretical time difference is 8.33 milliseconds, so, the closure correction time of the corresponding magnetic latching relay of B circuitry phases is Ton=8.33-
ts1.So from the beginning of T1 points, it is just 8.33-Tr+ that the corresponding magnetic latching relay of B circuitry phases carries out the time point of closed procedure
Ton.Using same method calculate " from B phases to C phases " and " from C phases to A phases " the closure correction time.
For from A phases to C phases closure the correction time computational methods also with the above-mentioned calculation class from A phases to B phases
Seemingly.Refer to Fig. 3, the amending unit control timer record from T1 start in load-side current transformer current signal by
The time ts2 of liter above freezing.Because T4 points are 11.67 milliseconds with the theoretical time difference of T1 points, the corresponding magnetic of C circuitry phases keeps
The closure correction time of relay is Ton1=11.67-ts2.So from the beginning of T1 points, the corresponding magnetic of C circuitry phases keeps relay
It is just 11.67-Tr+Ton that device carries out the time point of closed procedure.Using same method calculate " from C phases to B phases " and " from B phases to
The closure correction time of A phases ".
The technical scheme provided from above this utility model embodiment, this utility model embodiment is by negative
The current signal for carrying current transformer in lateral circuit is detected, so that it is determined that the time point of current signal zero passage.Electric current is believed
Breakpoint of the time point of number zero passage as current phase, it is ensured that after circuit disjunction, will not produce larger electricity in breakpoint
Stream.Additionally, after circuit disjunction, by detecting to current phase voltage, so that it is determined that the voltage of target phase and current phase
The equal time point of voltage, the closing time point that the time point is defined as target phase is just ensured to close electric wink in target circuitry phase
Between electric current go to zero.
Description to various embodiments of the present utility model above is supplied to those skilled in the art with the purpose for describing.
Various replacements of the present utility model and change will be apparent for above-mentioned technology one of ordinary skill in the art.Cause
This, although the embodiment of some alternatives has been specifically discuss, but other embodiment will be apparent, Huo Zheben
Art personnel relatively easily draw.What this utility model was intended to be included in that this had discussed of the present utility model all replaces
Generation, modification and change, and the other embodiment in the spirit and scope of above-mentioned application that falls.
Claims (5)
1. a kind of alternate load being fitted based on stable state waveform shifts termination, and the termination includes exchange main circuit mould
Block, sampling module, command operating module, main control module and communication interface modules, it is characterised in that the main control module respectively with
The communication interface modules, sampling module, command operating module are connected, the sampling module and the command operating module also with
The exchange main circuit module is connected, wherein：
The exchange main circuit module includes power supply lateral circuit, on-off circuit and load side electrical circuitry, and the power supply lateral circuit includes
A circuitry phases, B circuitry phases, C circuitry phases in parallel, the on-off circuit includes that the magnetic corresponding with each circuitry phase keeps relay
Device, the load side electrical circuitry includes current transformer, voltage transformer and load-side lead-out terminal；The A circuitry phases, B phases electricity
Road, C circuitry phases structure it is identical, including input terminal and voltage transformer；
The communication interface modules is used to receive the commutation instruction switched from current circuitry phase to target circuitry phase, and changes described
Mutually instruction is sent to the main control module；
The sampling module is described current for gathering the current signal of current transformer and collection in the load side electrical circuitry
The voltage signal of voltage transformer in circuitry phase；
The main control module includes timer and for controlling the chronograph control unit that the timer is turned on and off, described
Timer is used to respond the control instruction of the chronograph control unit, records the electricity of current transformer in the load side electrical circuitry
The transformation period for flowing signal and the transformation period for recording the voltage signal of voltage transformer in the current circuitry phase；
The command operating module is used to transmit the disjunction instruction that the main control module is assigned to magnetic latching relay each described
Or close command.
2. termination according to claim 1, it is characterised in that the A circuitry phases, B circuitry phases, C circuitry phases are also wrapped
Include fuse or air switch.
3. termination according to claim 1, it is characterised in that the termination also includes power module, data
Memory module and display keyboard circuit module, wherein, the power module is used to be supplied for the modules in the termination
Electricity, the display keyboard circuit module and the data memory module are connected with the main control module.
4. termination according to claim 1, it is characterised in that also include based on will be described in the main control module
When device record the logic matching unit that matched with Preset Time of time.
5. termination according to claim 1, it is characterised in that also include for the magnetic in the main control module
The amending unit that the break or closing time of guard relay is modified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621132850.8U CN206135426U (en) | 2016-10-18 | 2016-10-18 | Alternate load transfer terminating set based on match of stable state wave form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621132850.8U CN206135426U (en) | 2016-10-18 | 2016-10-18 | Alternate load transfer terminating set based on match of stable state wave form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206135426U true CN206135426U (en) | 2017-04-26 |
Family
ID=58573541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621132850.8U Expired - Fee Related CN206135426U (en) | 2016-10-18 | 2016-10-18 | Alternate load transfer terminating set based on match of stable state wave form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206135426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300398A (en) * | 2016-10-18 | 2017-01-04 | 泰豪科技股份有限公司 | A kind of alternate load based on stable state waveform fitting transfer termination |
| CN107147113A (en) * | 2017-06-05 | 2017-09-08 | 泰豪科技股份有限公司 | A kind of phase change method and device without phase fault |
-
2016
- 2016-10-18 CN CN201621132850.8U patent/CN206135426U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300398A (en) * | 2016-10-18 | 2017-01-04 | 泰豪科技股份有限公司 | A kind of alternate load based on stable state waveform fitting transfer termination |
| CN106300398B (en) * | 2016-10-18 | 2019-12-27 | 泰豪科技股份有限公司 | Interphase load transfer terminal device based on steady-state waveform fitting |
| CN107147113A (en) * | 2017-06-05 | 2017-09-08 | 泰豪科技股份有限公司 | A kind of phase change method and device without phase fault |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105720595B (en) | A kind of three-phase load unbalance adjusting apparatus | |
| CN106300398A (en) | A kind of alternate load based on stable state waveform fitting transfer termination | |
| CN103647458B (en) | Frequency conversion system and carry out the method and apparatus of precharge to the high voltage converter in it | |
| CN106877311A (en) | A kind of direct current photovoltaic generating system | |
| CN106992550A (en) | A kind of control device and header box | |
| CN207442454U (en) | Intelligent commutation device | |
| CN107895931A (en) | A kind of no-voltage opens the switch implementation method closed with zero current | |
| CN106526474A (en) | Zero-crossing operation test system and method for load switch for electric energy meter | |
| CN206135426U (en) | Alternate load transfer terminating set based on match of stable state wave form | |
| CN106849340A (en) | A kind of intelligent UPS device | |
| CN106356878A (en) | Inter-phase load transfer method based on waveform fitting | |
| CN106374507A (en) | Three-phase common compensation intelligent synchronous switch and control protection method thereof | |
| CN106451500A (en) | Inter-phase load transfer terminal device based on transient waveform fitting | |
| CN207381984U (en) | Three-phase imbalance self-checking device | |
| CN206135427U (en) | Alternate load transfer terminating set based on match of transient state wave form | |
| CN203849376U (en) | Breaker anti-tripping loop testing apparatus | |
| CN203839956U (en) | Novel multifunctional encoder | |
| CN209297536U (en) | A kind of nuclear phase training device | |
| CN205666629U (en) | Unbalanced three phase adjusting device's controller | |
| CN205583706U (en) | Three -phase unbalanced load adjusting device | |
| CN210490480U (en) | Residual work recovery and reactive power compensation device | |
| CN107437849A (en) | The online switch modulation digital communication control system of local power utilization network | |
| CN204732875U (en) | A kind of phase-lacking protective device | |
| CN107919655A (en) | Control circuit, control method and air conditioner | |
| CN107276376A (en) | A kind of multifunctional power instrument teaching experiment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20191018 |