CN207625298U - Three-phase phase reversal relay composite structure with self-locking function - Google Patents
Three-phase phase reversal relay composite structure with self-locking function Download PDFInfo
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- CN207625298U CN207625298U CN201721796082.0U CN201721796082U CN207625298U CN 207625298 U CN207625298 U CN 207625298U CN 201721796082 U CN201721796082 U CN 201721796082U CN 207625298 U CN207625298 U CN 207625298U
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- 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
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Abstract
The three-phase phase reversal relay composite structure with self-locking function that the utility model discloses a kind of, including the first, second, third relay；First, second relay has the first, second contact sets, and when one of contact sets are closed, another contact sets disconnects；Third relay is single contact group；Each one end of first, second contact sets of the first relay is respectively connected to A phases electricity, B phase electricity; each other end of first, second contact sets of the first relay is connected and is connected to one end of the first contact sets of the second relay; one end of the second contact sets of the second relay is connected to C phase electricity; each other end of first, second contact sets of the second relay is connected and is connected to one end of third relay; the other end connection load of third relay; third relay shields in commutation process, makes to be not in arc short circuit in commutation process.The utility model can avoid the phase fault problem caused by control logic problem or relay contact bonding failure completely.
Description
Technical field
The utility model is related to relay application technical fields, more particularly to a kind of three-phase commutation with self-locking function
Relay assembly structure.
Background technology
Existing three-phase electricity leads to three-phase current (or voltage) amplitude of three-phase electricity not because inconsistent per the load of phase user
Unanimously, when but three-phase current (or voltage) amplitude is more than a certain range, three-phase load must be adjusted, it is unbalanced to make
Load difference controls in the range of requiring.
It is existing using relay to carry out the structure of three-phase imbalance load adjusting generally single-phase (i.e. single group is tactile using three
Point) relay be serially connected in respectively in A phase, B phase, C phase circuit, control three-phase by controlling the connection of A phases or B phases or C phases
Load unbalanced degree.Fig. 1 is that the three-phase phase reversal relay composite structure of the prior art is connected to the schematic diagram of three-phase electricity, this three
Phase phase reversal relay composite structure includes the first relay 101, the second relay 102 and third relay 103, the first relay
101, the second relay 102 and third relay 103 are single group contact structure, the first relay 101, the second relay 102
It is electric it to be respectively connected to A phases electricity, B phase electricity and C phases with each one end of the single group contact of third relay 103, the first relay 101, the
Each other end of the single group contact of two relays 102 and third relay 103 links together and is connected to load 104.It uses
When, the contact closure of the first relay 101, the contact disconnection of the second relay 102 and third relay 103, when load end is negative
When lotus is excessively high, A phase loads reduce, and cause with the load difference of B or C phases to be more than the setting value allowed, at this time must be by load commutated
Alternate unbalanced problem is adjusted to B phases or C phases；But following three problems may be led to when using this scheme：
1, when complete machine is installed because equipment may be such that the magnetic latching relay of control three-phase electricity goes out in the links such as transport
Existing two relays (the first relay 101 and the second relays 102；Or second relay 102 and third relay 103 or the
One relay 101 and third relay 103) or the case where three relay contact closures, will occur in this case alternate
The failure of short circuit；
2, when logic control circuit control failure when may or control two relays or three relays be closed at and
There is the failure of phase fault；
3, when one of relay contact bonding do not open when, other two relay or in which a relay close
To occur phase fault when conjunction.
Utility model content
The purpose of the utility model is to overcome the deficiencies of the prior art, provide a kind of three-phase commutation with self-locking function
Relay assembly structure is improved, it can be achieved that interlocking function by structure, to be avoided completely because of control logic problem or relay
Device contact is bonded phase fault problem caused by failure.
Technical solution adopted by the utility model to solve its technical problems is：A kind of three-phase commutation with self-locking function
Relay assembly structure, including the first relay, the second relay and third relay；First relay, the second relay
Device includes the first contact sets and the second contact sets, and the first contact sets and the second contact sets have following relationship：When wherein
A contact sets be closed when, then another contact sets disconnect；The third relay is single contact group；First relay
The first contact sets and each one end of the second contact sets be respectively connected to A phases electricity, B phase electricity, the first contact sets of the first relay with
Each other end of second contact sets is connected and is connected to one end of the first contact sets of the second relay, and the second of the second relay
One end of contact sets is connected to C phase electricity, and the first contact sets of the second relay are connected and connect with each other end of the second contact sets
To one end of the single contact group of third relay, the other end connection load of the single contact group of third relay；Wherein, third after
Electric appliance be used for be initially switched off load in the first relay and/or the second relay commutation, avoid the first relay and/or second after
When electric appliance commutation caused by electric arc phase fault.
First relay, the second relay are 1HD type relays；Its in first contact sets and the second contact sets
In a contact sets correspond to the normally opened contact groups of 1HD type relays, another contact sets then corresponds to the normally closed of 1HD type relays and touches
Point group.
First relay, the second relay are Z-type relay；Each one end of first contact sets and the second contact sets
Correspond to normally open end and the normal-closed end of Z-type relay respectively, each other end of the first contact sets and the second contact sets corresponds to Z-type respectively
The common end of relay.
One of first relay, the second relay relay is 1HD type relays, another relay is
Z-type relay；Contact sets correspond to 1HD one of in the first contact sets and the second contact sets of one of relay
The normally opened contact group of type relay, another contact sets then correspond to the normally-closed contact group of 1HD type relays；Another described relay
First contact sets of device and each one end of the second contact sets correspond to normally open end and the normal-closed end of Z-type relay, the first contact respectively
Each other end of group and the second contact sets corresponds to the common end of Z-type relay respectively.
In commutation process, by third relay first by load break, the first relay and/or the second relay is made to exist
Commutation is not carried out in the case of bringing onto load, after commutation again by third relay be closed connect load, avoid the first relay and/
Or occurs the danger that electric arc makes phase fault when the second relay bringing onto load commutation.
The three-phase phase reversal relay composite structure is mutually solid by the first relay, the second relay and third relay
It is scheduled on the formula structure that forms a whole together, the first contact sets of first relay and each one end difference of the second contact sets
Equipped with the first connecting terminal and the second connecting terminal；One end of second contact sets of second relay is equipped with third terminals
Son；The other end of the single contact group of the third relay is equipped with the 4th connecting terminal；The three-phase phase reversal relay combination knot
Structure is separately connected the A phases in circuit by the first connecting terminal, the second connecting terminal, third connecting terminal and the 4th connecting terminal
Electricity, B phases electricity, C phases electricity and load.
First contact sets of first relay be connected with each other end of the second contact sets after in the monoblock type
One end of the first contact sets of the second relay is connected in structure by conductive sheet；First contact sets of the second relay and second
Each other end of contact sets is connected to the single contact group of third relay in the monolithic construction by conductive sheet after being connected
One end.
Compared with prior art, the utility model has the beneficial effects that：
The utility model as a result of by the first relay, the second relay design Cheng Jun include the first contact sets and
Second contact sets, and the first contact sets and the second contact sets have following relationship：When one of contact sets are closed, then separately
One contact sets disconnects；It is single contact group by third relay design；Allow the first relay the first contact sets and the second contact
Each one end of group is respectively connected to A phases electricity, B phase electricity, the first contact sets of the first relay and each other end phase of the second contact sets
One end of the first contact sets of the second relay is connected and is connected to, an end of the second contact sets of the second relay is connected to C phase electricity,
First contact sets of the second relay are connected with each other end of the second contact sets and are connected to the single contact group of third relay
One end, the single contact group of third relay the other end connection load；Wherein, third relay is used in the first relay
And/or load is initially switched off when the second relay commutation, when avoiding the first relay and/or the second relay commutation caused by electric arc
Phase fault.This structure of the utility model, it can be achieved that interlocking function, can avoid completely because of control logic problem or
Relay contact is bonded phase fault problem caused by failure.
The utility model is described in further detail with reference to the accompanying drawings and embodiments；But a kind of tool of the utility model
There is the three-phase phase reversal relay composite structure of self-locking function to be not limited to embodiment.
Description of the drawings
Fig. 1 is that the three-phase phase reversal relay composite structure of the prior art is connected to the schematic diagram of three-phase electricity；
Fig. 2 is the schematic diagram that example The utility model is connected to three-phase electricity；
Fig. 3 is the D structure schematic diagram of example The utility model；
Fig. 4 is the front view of example The utility model；
Fig. 5 is the schematic diagram that load is connected to A phases by example The utility model；
Fig. 6, which is example The utility model, will load the schematic diagram that B phases are switched to by A phases；
Fig. 7, which is example The utility model, will load the schematic diagram that C phases are switched to by A phases；
Fig. 8 is the schematic diagram that load is connected to B phases by example The utility model；
Fig. 9, which is example The utility model, will load the schematic diagram that A phases are switched to by B phases；
Figure 10, which is example The utility model, will load the schematic diagram that C phases are switched to by B phases；
Figure 11 is the schematic diagram that load is connected to C phases by example The utility model；
Figure 12, which is example The utility model, will load the schematic diagram that A phases are switched to by C phases；
Figure 13, which is example The utility model, will load the schematic diagram that B phases are switched to by C phases.
Specific implementation mode
Embodiment
Shown in Fig. 2 to Fig. 4, a kind of three-phase phase reversal relay combination knot with self-locking function of the utility model
Structure, including the first relay 1, the second relay 2 and third relay 3；First relay 1 includes the first contact sets 11
With the second contact sets 12, and the first contact sets 11 and the second contact sets 12 have following relationship：When one of contact sets are closed
When conjunction, then another contact sets disconnects；Second relay 2 includes the first contact sets 21 and the second contact sets 22, and
One contact sets 21 and the second contact sets 22 have following relationship：When one of contact sets are closed, then another contact sets
It disconnects；The third relay 3 is single contact group 31；The first contact sets 11 and the second contact sets 12 of first relay 1
Each one end electric, each other end of the first contact sets 11 and the second contact sets 12 of the first relay 1 that is respectively connected to A phases electricity, B phase
It is connected and is connected to one end of the first contact sets 21 of the second relay 2, a termination of the second contact sets 22 of the second relay 2
To C phase electricity, the first contact sets 21 of the second relay 2 are connected with each other end of the second contact sets 22 and are connected to third relay
One end of the single contact group 31 of device 3, the other end connection load 4 of the single contact group 31 of third relay 3；Wherein, third relay
Device 3 is used for being initially switched off load 4 in the first relay 1 and/or the second 2 commutation of relay, avoids the first relay 1 and/or the
When two 2 commutations of relay caused by electric arc phase fault.
In the present embodiment, first relay 1, the second relay 2 are that (i.e. there are one normally closed for tool for 1HD types relay
Contact sets and a normally opened contact group)；Contact sets correspond to 1HD types one of in first contact sets 11 and the second contact sets 12
The normally opened contact group of relay, another contact sets then correspond to the normally-closed contact group of 1HD type relays.
It is of course also possible to be another scheme, i.e., described first relay, the second relay are Z-type relay；This
When, each one end of the first contact sets and the second contact sets corresponds to normally open end and the normal-closed end of Z-type relay, the first contact sets respectively
Correspond to the common end of Z-type relay respectively with each other end of the second contact sets.
It is, of course, also possible to be yet another approach, i.e., one of described first relay, second relay relay are
1HD type relays, another relay are Z-type relay；First contact sets of one of relay and the second contact
Contact sets correspond to the normally opened contact group of 1HD type relays one of in group, another contact sets then corresponds to 1HD type relays
Normally-closed contact group；First contact sets of another relay and each one end of the second contact sets correspond to Z-type relay respectively
Each other end of the normally open end of device and normal-closed end, the first contact sets and the second contact sets corresponds to the common end of Z-type relay respectively.
In commutation process, first load 4 is cut off by third relay 3, makes the first relay 1 and/or the second relay
Device 2 carries out commutation in the case of not bringing onto load, after commutation again by third relay 3 be closed connect load 4, avoid first after
Occurs the danger that electric arc makes phase fault when electric appliance and/or the second relay bringing onto load commutation.
In the present embodiment, the three-phase phase reversal relay composite structure passes through the first relay 1, the second relay 2 and
Three relays, the 3 formula structure fixed with each other that forms a whole, the first contact sets 11 and second of first relay 1
Each one end of contact sets 12 is respectively equipped with the first connecting terminal 13 and the second connecting terminal 14；The second of second relay 2
One end of contact sets 22 is equipped with third connecting terminal 23；The other end of the single contact group 31 of the third relay 3 is equipped with the 4th
Connecting terminal 32；The three-phase phase reversal relay composite structure is connect by the first connecting terminal 13, the second connecting terminal 14, third
Line terminals 23 are separately connected A phases electricity, B phases electricity, C phases electricity and load 4 in circuit with the 4th connecting terminal 32.In addition to the 4th wiring
Terminal 32 is fixedly connected outside load 4, and the first connecting terminal 13, the second connecting terminal 14, third connecting terminal 23 can be arbitrarily
It is correspondingly connected with A phases electricity, B phases electricity, C phase electricity；For example, can be the first connecting terminal 13, the second connecting terminal 14, third terminals
Son 23, which corresponds to, connects A phases electricity, B phases electricity, C phase electricity；Can also be the first connecting terminal 13, the second connecting terminal 14, third terminals
Son 23, which corresponds to, connects B phases electricity, C phases electricity, A phase electricity；It can also be the first connecting terminal 13, the second connecting terminal 14, third terminals
Son 23, which corresponds to, connects C phases electricity, B phases electricity, A phase electricity etc..
In the present embodiment, the first contact sets 11 of first relay 1 are connected with each other end of the second contact sets 12
It is connected to one end of the first contact sets 21 of the second relay 2 after connecing by conductive sheet 15 in the monolithic construction；Second after
First contact sets 21 of electric appliance 2 pass through conduction after being connected with each other end of the second contact sets 22 in the monolithic construction
Piece 24 is connected to one end of the single contact group 31 of third relay 3.
A kind of three-phase phase reversal relay composite structure with self-locking function of the utility model, uses the first relay
Device 1, the second relay 2 are designed to include the first contact sets and the second contact sets, and the first contact sets and the second contact sets
With following relationship：When one of contact sets are closed, then another contact sets disconnects；Third relay 3 is designed as
Single contact group；The first contact sets 11 of the first relay 1 and each one end of the second contact sets 12 are allowed to be respectively connected to A phases electricity, B phases
First contact sets 11 of electricity, the first relay 1 are connected with each other end of the second contact sets 12 and are connected to the second relay 2
One end of first contact sets 21, an end of the second contact sets 21 of the second relay 2 are connected to C phase electricity, and the first of the second relay 2
Contact sets 21 are connected with each other end of the second contact sets 22 and are connected to one end of the single contact group 31 of third relay 3, the
The other end connection load 4 of the single contact group 31 of three relays 3；Wherein, third relay is used in the first relay and/or the
Load is initially switched off when two relay commutations, it is alternate caused by electric arc when avoiding the first relay and/or the second relay commutation
Short circuit.This structure of the utility model is, it can be achieved that interlocking function, can avoid completely because of control logic problem or relay
Contact is bonded phase fault problem caused by failure.
A kind of three-phase phase reversal relay composite structure with self-locking function of the utility model, in commutation process, the
Three relays 3 are when avoiding the first relay 1, the second relay 2 from carrying out commutation to first disconnect load 4 in commutation process
It is practical to realize that the operation of the arbitrary commutation of three-phase electricity is by the first relay 1, the second relay because phase fault occurs in electric arc reason
2 control realization.Third relay 3 is closed again after commutation, to realize the purpose of commutation；If the electricity between contact can be controlled
Arc can not have to third relay 3 yet.
Illustrate commutation process below by way of specific example：
In the present embodiment, the first contact sets 11 of the first relay 1 are normally opened contact group, and the second of the first relay 1 touches
Point group 12 is normally-closed contact group, and the first contact sets 21 of the second relay 2 are normally opened contact group, and the second of the second relay 2 touches
Point group 22 is normally-closed contact group.
Shown in Fig. 5 to Fig. 7, wherein 1. 2. 3. 4. in figure is protection circuit；Load 4 by third relay 3,
Second relay 2, the first relay 1 are connected to A phases, as shown in Figure 5；When needing to load 4 by A phases to B phases, third relay
3 disconnect load 4, and then 1 involution of the first relay changes to B phases by A phases, and last third relay 3 recloses load 4, completes A
To the commutation of B, as shown in Figure 6；When need will load 4 by A phase to C phases when, third relay 3 disconnect load 4, then second after
2 involution of electric appliance changes to C phases by A phases, and last third relay 3 recloses load, completes the commutation of A to C, as shown in Figure 7.
Shown in Fig. 8 to Figure 10, load 4 is connected to B by third relay 3, the second relay 2, the first relay 1
Phase, as shown in Figure 8；When needing to load 4 by B phases to A phases, third relay 3 disconnects load, and then the first relay 1 is dynamic
Make, A phases is changed to by B phases, last third relay 3 recloses load 4, completes the commutation of B to A, as shown in Figure 9；When need by
When load 4 is by B phases to C phases, third relay 3 disconnects load 4, and then the second relay 2 acts, and changes to C phases by B phases, finally
Third relay 3 recloses load 4, completes the commutation of B to C, as shown in Figure 10.
Shown in Figure 11 to Figure 13, load 4 is connected to C phases by third relay 3, the second relay 2, such as Figure 11 institutes
Show；When needing to load 4 by C phases to A phases, third relay 3 disconnects load 4, then the first relay 1, the second relay 2
Action changes to A phases by C phases, and last third relay 3 recloses load 4, completes the commutation of C to A, as shown in figure 12；Work as needs
When will load 4 by C phases to B phases, third relay 3 disconnects load 4, and then the second relay 2 acts, and changes to B phases by C phases, most
Third relay 3 is being closed load 4 afterwards, completes the commutation of C to B, as shown in figure 13.
It is of course also possible to the first contact sets 11 of the first relay 1 are set as normally-closed contact group, the of the first relay 1
Two contact sets 12 are set as normally opened contact group, and the second relay 2 is also similar.
Because the first relay 1, the second relay 2 are 1HD types relay or Z-type relay, contact shape in no matter illustrating
State be any situation will not arbitrary two-phase electricity the phenomenon that being also turned on, therefore be not in existing phase fault defect.
The preferred embodiment of above-mentioned only the utility model, does not impose any limitation on the present invention.Though
So the utility model has been disclosed with preferred embodiment as above, however is not limited to the utility model.It is any to be familiar with this field
Technical staff, in the case where not departing from technical solutions of the utility model range, all using the technology contents of the disclosure above
Many possible changes and modifications are made to technical solutions of the utility model, or are revised as equivalents equivalent embodiment.Therefore,
Every content without departing from technical solutions of the utility model, according to made to the above embodiment of the utility model technical spirit
What simple modification, equivalent variation and modification, should all fall in the range of technical solutions of the utility model are protected.
Claims (7)
1. a kind of three-phase phase reversal relay composite structure with self-locking function, including the first relay, the second relay and
Three relays；It is characterized in that：First relay, the second relay include the first contact sets and the second contact sets,
And first contact sets and the second contact sets there is following relationship：When one of contact sets are closed, then another contact sets
It disconnects；The third relay is single contact group；First contact sets of first relay and each one end of the second contact sets
It is respectively connected to A phases electricity, B phase electricity, the first contact sets of the first relay are connected and are connected to each other end of the second contact sets
One end of one end of the first contact sets of the second relay, the second contact sets of the second relay is connected to C phase electricity, the second relay
The first contact sets be connected with each other end of the second contact sets and be connected to third relay single contact group one end, third
The other end connection load of the single contact group of relay；Wherein, third relay is used in the first relay and/or the second relay
Load is initially switched off when device commutation, when avoiding the first relay and/or the second relay commutation caused by electric arc phase fault.
2. the three-phase phase reversal relay composite structure according to claim 1 with self-locking function, it is characterised in that：It is described
First relay, the second relay are 1HD type relays；Contact sets one of in first contact sets and the second contact sets
The normally opened contact group of corresponding 1HD type relays, another contact sets then correspond to the normally-closed contact group of 1HD type relays.
3. the three-phase phase reversal relay composite structure according to claim 1 with self-locking function, it is characterised in that：It is described
First relay, the second relay are Z-type relay；Each one end of first contact sets and the second contact sets corresponds to Z-type respectively
Each other end of the normally open end of relay and normal-closed end, the first contact sets and the second contact sets corresponds to the public affairs of Z-type relay respectively
End altogether.
4. the three-phase phase reversal relay composite structure according to claim 1 with self-locking function, it is characterised in that：It is described
One of first relay, the second relay relay is 1HD type relays, another relay is Z-type relay；Institute
It one of states in the first contact sets and the second contact sets of one of relay contact sets and corresponds to the normal of 1HD type relays
Contact sets are opened, another contact sets then corresponds to the normally-closed contact group of 1HD type relays；First contact of another relay
Each one end of group and the second contact sets corresponds to normally open end and the normal-closed end of Z-type relay, the first contact sets and the second contact respectively
Each other end of group corresponds to the common end of Z-type relay respectively.
5. the three-phase phase reversal relay composite structure according to claim 1 with self-locking function, it is characterised in that：It is changing
During phase, by third relay first by load break, make the first relay and/or the second relay in not load-carrying feelings
Commutation is carried out under condition, is closed again by third relay after commutation and is connected load, avoids the first relay and/or the second relay
Occurs the danger that electric arc makes phase fault when bringing onto load commutation.
6. the three-phase phase reversal relay composite structure with self-locking function according to claims 1 or 2 or 3 or 4 or 5,
It is characterized in that：The three-phase phase reversal relay composite structure is mutual by the first relay, the second relay and third relay
Be fixed together the formula structure that forms a whole, the first contact sets of first relay and each one end of the second contact sets point
It She You not the first connecting terminal and the second connecting terminal；One end of second contact sets of second relay is equipped with third wiring
Terminal；The other end of the single contact group of the third relay is equipped with the 4th connecting terminal；The three-phase phase reversal relay combination
Structure is separately connected the A in circuit by the first connecting terminal, the second connecting terminal, third connecting terminal and the 4th connecting terminal
Mutually electricity, B phases electricity, C phases electricity and load.
7. the three-phase phase reversal relay composite structure according to claim 6 with self-locking function, it is characterised in that：It is described
First contact sets of the first relay be connected with each other end of the second contact sets after in the monolithic construction by leading
Electric piece is connected to one end of the first contact sets of the second relay；First contact sets of the second relay and the second contact sets it is each another
One end is connected to one end of the single contact group of third relay in the monolithic construction by conductive sheet after being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796082.0U CN207625298U (en) | 2017-12-20 | 2017-12-20 | Three-phase phase reversal relay composite structure with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796082.0U CN207625298U (en) | 2017-12-20 | 2017-12-20 | Three-phase phase reversal relay composite structure with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207625298U true CN207625298U (en) | 2018-07-17 |
Family
ID=62820116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721796082.0U Active CN207625298U (en) | 2017-12-20 | 2017-12-20 | Three-phase phase reversal relay composite structure with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207625298U (en) |
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2017
- 2017-12-20 CN CN201721796082.0U patent/CN207625298U/en active Active
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