CN209016795U - A kind of two inlet wire of low pressure, one contact electrical interlocking system - Google Patents
A kind of two inlet wire of low pressure, one contact electrical interlocking system Download PDFInfo
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- CN209016795U CN209016795U CN201822149113.4U CN201822149113U CN209016795U CN 209016795 U CN209016795 U CN 209016795U CN 201822149113 U CN201822149113 U CN 201822149113U CN 209016795 U CN209016795 U CN 209016795U
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- incoming switch
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- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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Abstract
The utility model relates to a kind of two inlet wire of low pressure, one contact electrical interlocking systems, including two transformers, two sections of buses, transformer and bus are connected separately with the first incoming switch and the second incoming switch between any two, interconnection switch is connected between two sections of buses, first incoming switch, the second incoming switch, interconnection switch include closing circuit and sub-gate circuit.The utility model is provided with dual interlock, one is interlock circuit is arranged on the circuit of closing coil, another kind is that interlock circuit is arranged on the circuit of opening coil, even if the opening coil or closing coil that arbitrarily switch break down, two inlet wires, one contact electrical interlocking system still may be implemented to interlock, the serious forgiveness of raising system entirety, and this it is practical be additionally provided with indicator light, more intuitively allow patrol officer to understand the switch of the corresponding access of two inlet wires, one contact electrical interlocking system.
Description
Technical field
The utility model relates to one contact electrical interlocking systems of low-voltage distribution system more particularly to a kind of two inlet wire of low pressure.
Background technique
Current two inlet wire one gets in touch with the important place that power supply system is usually used in low-voltage power supply, and two inlet wires one get in touch with power supply system
In be provided with two transformers respectively to two sections of bussed supplies, be provided with incoming switch between bus and transformer, bus with
It is provided with interconnection switch between bus, when normal work, two incoming switches closures, interconnection switch is not closed, once wherein one
Road busbar trip, then interconnection switch is closed, and a transformer is allowed to provide two-way bussed supply voltage simultaneously, if tripping side bus
On incoming switch need to disconnect interconnection switch when being closed again, otherwise will form loop, this mode needs three switches to set
It sets to form interlocking loop.But existing two inlet wire one get in touch with power supply system using single interlock method control closing coil into
Action is made, once one of closing coil breaks down, cannot form interlocking, there are great hidden danger, and inlet wire is opened
It closes and the closure of interconnection switch is not intuitive.
Summary of the invention
In view of this, that the purpose of this utility model is to provide a kind of interlockings is reliable, prevents two transformers connected in parallel operations
Two inlet wire of low pressure, one contact electrical interlocking system.
In order to achieve the goal above, the utility model uses such a two inlet wire of low pressure, one contact electrical interlocking system,
Including two transformers, two sections of buses, transformer and bus are connected separately with the first incoming switch and the second inlet wire between any two
It switchs, is connected with interconnection switch between two sections of buses, first incoming switch, the second incoming switch, interconnection switch include
Closing circuit and sub-gate circuit,
The closing circuit of first incoming switch includes the first interlock circuit being sequentially connected in series, the first switch knob,
One closing coil, first interlock circuit is by the normally closed interlock of the second incoming switch and the normally closed interlock parallel connection group of interconnection switch
At the sub-gate circuit of first incoming switch includes the second interlock circuit, the first opening button, the first opening coil, described
Second interlock circuit is in parallel with the first opening button, and the first opening button is connected with the first opening coil, the second interlocking electricity
The normally open contact of the normally open contact and interconnection switch that route the second incoming switch is composed in series,
The closing circuit of second incoming switch includes the third interlock circuit being sequentially connected in series, the second switch knob,
Two closing coils, the third interlock circuit is by the normally closed interlock of the first incoming switch and the normally closed interlock parallel connection group of interconnection switch
At the sub-gate circuit of second incoming switch includes the 4th interlock circuit, the second opening button, the second opening coil, described
4th interlock circuit is in parallel with the second opening button, and the second opening button is connected with the second opening coil, the 4th interlocking electricity
The normally open contact of the normally open contact and interconnection switch that route the first incoming switch is composed in series,
The closing circuit of the interconnection switch includes that the 5th interlock circuit, third switch knob, third being sequentially connected in series close
Brake cable circle, the 5th interlock circuit is by the normally closed interlock of the first incoming switch and the normally closed interlock parallel connection group of the second incoming switch
Sub-gate circuit at, the interconnection switch includes the 6th interlock circuit, third opening button, third opening coil, and the described 6th
Interlock circuit is in parallel with third opening button, and third opening button is connected with third opening coil, the 6th interlock circuit by
The normally open contact of the normally open contact of first incoming switch and the second incoming switch is composed in series.
There are two types of interlock methods for above-mentioned two inlet wire of low pressure, one contact electrical interlocking system, and first is in the circuit of closing coil
Upper setting interlock circuit realizes the interlocking between two incoming switches and an interconnection switch three, when two incoming switches and one
There are two when closing the switch in a interconnection switch, the closing circuit of a remaining switch does not just constitute access, not can be carried out conjunction
Lock；Second is that interlock circuit is arranged on the circuit of opening coil to realize between two incoming switches and an interconnection switch three
Interlocking, when in two incoming switches and an interconnection switch there are two close the switch when, it is remaining one switch separating brake return
Road just constitutes access, carries out separating brake.Two inlet wire of low pressure, one contact electrical interlocking system is substantially increased by two kinds of interlock methods
Reliability, even if closing coil or opening coil one of them break down and can still form interlocking, improve two inlet wire of low pressure
The serious forgiveness of one contact electrical interlocking system.
This is practical, and to be further arranged to the first incoming switch, the second incoming switch, interconnection switch include closing a floodgate to indicate back
Road and separating brake indicate circuit, the combined floodgate instruction circuit of first incoming switch include the indicator light L2 and first that is sequentially connected in series into
The separating brake instruction circuit of the normally open contact of wiretap, the first incoming switch includes that the indicator light L1 being sequentially connected in series and the first inlet wire are opened
The combined floodgate instruction circuit of the normally closed interlock of pass, second incoming switch includes that the indicator light L4 being sequentially connected in series and the second inlet wire are opened
The separating brake instruction circuit of the normally open contact of pass, the second incoming switch includes the indicator light L3 and the second incoming switch being sequentially connected in series
Normally closed interlock, the combined floodgate instruction circuit of the interconnection switch include the normally opened touching of the indicator light L6 and interconnection switch that are sequentially connected in series
Head, the separating brake instruction circuit of interconnection switch include the normally closed interlock of the indicator light L5 and interconnection switch that are sequentially connected in series.
The above-mentioned combined floodgate in the first incoming switch, the second incoming switch, interconnection switch three indicates circuit and separating brake instruction
Circuit is both provided with indicator light, and patrol officer is more intuitively allowed to understand opening for the corresponding access of two inlet wires, one contact electrical interlocking system
It closes.
Detailed description of the invention
Fig. 1 is two inlet wire of the utility model embodiment low pressure, one contact electrical interlocking systematic schematic diagram.
Fig. 2 is the utility model embodiment the first incoming switch electrical structure schematic diagram.
Fig. 3 is the utility model embodiment the second incoming switch electrical structure schematic diagram.
Fig. 4 is the utility model embodiment interconnection switch electrical structure schematic diagram.
Specific embodiment
As shown in Figs 1-4, the utility model is a kind of two inlet wire of low pressure, one contact electrical interlocking system, including two transformations
Device, 1# bus, 2# bus, two transformers are connected with the first incoming switch 1QF and second between 1# bus, 2# bus respectively
Incoming switch 2QF is connected with interconnection switch 3QF, the first incoming switch 1QF, the second incoming switch between two sections of buses
2QF, interconnection switch 3QF include closing circuit and sub-gate circuit,
The closing circuit of the first incoming switch 1QF includes the first interlock circuit a, the first switch knob being sequentially connected in series
1HA, the first closing coil 1XF, the first interlock circuit a by the second incoming switch 2QF normally closed interlock and interconnection switch 3QF
Normally closed interlock compose in parallel, the sub-gate circuit of the first incoming switch 1QF includes that the second interlock circuit b, the first separating brake are pressed
Button 1TA, the first opening coil 1TQ, the second interlock circuit b is in parallel with the first opening button 1TA, the first opening button 1TA
Connect with the first opening coil 1TQ, the second interlock circuit b by the second incoming switch 2QF normally open contact and interconnection switch
The normally open contact of 3QF is composed in series,
The closing circuit of the second incoming switch 2QF includes third interlock circuit c, the second switch knob being sequentially connected in series
2HA, the second closing coil 2XF, the third interlock circuit c by the first incoming switch 1QF normally closed interlock and interconnection switch 3QF
Normally closed interlock compose in parallel, the sub-gate circuit of the second incoming switch 2QF includes that the 4th interlock circuit d, the second separating brake are pressed
Button 2TA, the second opening coil 2TQ, the 4th interlock circuit d is in parallel with the second opening button 2TA, the second opening button 2TA
Connect with the second opening coil 2TQ, the 4th interlock circuit d by the first incoming switch 1QF normally open contact and interconnection switch
The normally open contact of 3QF is composed in series,
The closing circuit of the interconnection switch 3QF include the 5th interlock circuit e being sequentially connected in series, third switch knob 3HA,
Third closing coil 3XF, the 5th interlock circuit e by the first incoming switch 1QF normally closed interlock and the second incoming switch 2QF
Normally closed interlock compose in parallel, the sub-gate circuit of the interconnection switch 3QF includes the 6th interlock circuit f, third opening button
3TA, third opening coil 3TQ, the 6th interlock circuit f is in parallel with third opening button 3TA, third opening button 3TA with
Third opening coil 3TQ series connection, the 6th interlock circuit f are opened by the normally open contact and the second inlet wire of the first incoming switch 1QF
The normally open contact for closing 2QF is composed in series.
As in Figure 2-4, the first incoming switch 1QF, the second incoming switch 2QF, interconnection switch 3QF include instruction of closing a floodgate
Circuit and separating brake indicate circuit, the combined floodgate instruction circuit of the first incoming switch 1QF include the indicator light L2 being sequentially connected in series and
The separating brake instruction circuit of the normally open contact of first incoming switch 1QF, the first incoming switch 1QF includes the indicator light L1 being sequentially connected in series
Combined floodgate instruction circuit with the normally closed interlock of the first incoming switch 1QF, the second incoming switch 2QF includes the finger being sequentially connected in series
Show the normally open contact of lamp L4 and the second incoming switch 2QF, the separating brake instruction circuit of the second incoming switch 2QF includes being sequentially connected in series
The combined floodgate instruction circuit of the normally closed interlock of indicator light L3 and the second incoming switch 2QF, the interconnection switch 3QF includes being sequentially connected in series
Indicator light L6 and interconnection switch 3QF normally open contact, interconnection switch 3QF separating brake instruction circuit include the instruction being sequentially connected in series
The normally closed interlock of lamp L5 and interconnection switch 3QF.
According to above embodiments, two inlet wire of low pressure, the one contact electrical interlocking system of the utility model joins with dual interlock
Lock mode, one is interlock circuit is arranged on the circuit of closing coil, when the first incoming switch, the second incoming switch, contact
After switch three's any two close the switch, remaining switch closing circuit would not constitute access, and closing coil can not be powered
It is acted, prevents it from closing a floodgate；Another kind is that interlock circuit is arranged on the circuit of opening coil, when the first incoming switch,
After second incoming switch, interconnection switch three's any two close the switch, remaining switch sub-gate circuit just necessarily constitutes access,
Opening coil energization is acted, its separating brake is made.Above-mentioned dual interlock mode makes the opening coil or closing line of any switch
Circle breaks down, and two inlet wires, one contact electrical interlocking system still may be implemented to interlock, and improves the serious forgiveness of system entirety.And
First incoming switch, the second incoming switch, the combined floodgate instruction circuit of interconnection switch and separating brake instruction circuit are both provided with indicator light,
Patrol officer is more intuitively allowed to understand the switch of the corresponding access of two inlet wires, one contact electrical interlocking system.
Claims (2)
1. a kind of two inlet wire of low pressure, one contact electrical interlocking system, including two transformers, two sections of buses, transformer and bus two
It is connected separately with the first incoming switch and the second incoming switch between two, is connected with interconnection switch between two sections of buses, described
One incoming switch, the second incoming switch, interconnection switch include closing circuit and sub-gate circuit, it is characterised in that:
The closing circuit of first incoming switch includes the first interlock circuit being sequentially connected in series, the first switch knob, the first conjunction
Brake cable circle, first interlock circuit are composed in parallel by the normally closed interlock of the second incoming switch and the normally closed interlock of interconnection switch,
The sub-gate circuit of first incoming switch include the second interlock circuit, the first opening button, the first opening coil, described second
Interlock circuit is in parallel with the first opening button, and the first opening button is connected with the first opening coil, second interlock circuit by
The normally open contact of second incoming switch and the normally open contact of interconnection switch are composed in series,
The closing circuit of second incoming switch includes the third interlock circuit being sequentially connected in series, the second switch knob, the second conjunction
Brake cable circle, the third interlock circuit are composed in parallel by the normally closed interlock of the first incoming switch and the normally closed interlock of interconnection switch,
The sub-gate circuit of second incoming switch include the 4th interlock circuit, the second opening button, the second opening coil, the described 4th
Interlock circuit is in parallel with the second opening button, and the second opening button is connected with the second opening coil, the 4th interlock circuit by
The normally open contact of first incoming switch and the normally open contact of interconnection switch are composed in series,
The closing circuit of the interconnection switch includes the 5th interlock circuit, third switch knob, the third closing line being sequentially connected in series
Circle, the 5th interlock circuit are composed in parallel by the normally closed interlock of the first incoming switch and the normally closed interlock of the second incoming switch,
The sub-gate circuit of the interconnection switch includes the 6th interlock circuit, third opening button, third opening coil, the 6th interlocking
Circuit is in parallel with third opening button, and third opening button is connected with third opening coil, and the 6th interlock circuit is by first
The normally open contact of the normally open contact of incoming switch and the second incoming switch is composed in series.
2. two inlet wire of low pressure, one contact electrical interlocking system according to claim 1, it is characterised in that: first inlet wire
Switch, the second incoming switch, interconnection switch include closing a floodgate to indicate circuit and separating brake instruction circuit, first incoming switch
It closes a floodgate and indicates that circuit includes the indicator light L2 being sequentially connected in series and the normally open contact of the first incoming switch, the separating brake of the first incoming switch
Indicate that circuit includes the indicator light L1 being sequentially connected in series and the normally closed interlock of the first incoming switch, the combined floodgate of second incoming switch
Instruction circuit includes the indicator light L4 being sequentially connected in series and the normally open contact of the second incoming switch, the separating brake instruction of the second incoming switch
Circuit includes the indicator light L3 being sequentially connected in series and the normally closed interlock of the second incoming switch, and the combined floodgate of the interconnection switch indicates circuit
The separating brake instruction circuit of normally open contact including the indicator light L6 and interconnection switch that are sequentially connected in series, interconnection switch includes being sequentially connected in series
Indicator light L5 and interconnection switch normally closed interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149113.4U CN209016795U (en) | 2018-12-20 | 2018-12-20 | A kind of two inlet wire of low pressure, one contact electrical interlocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149113.4U CN209016795U (en) | 2018-12-20 | 2018-12-20 | A kind of two inlet wire of low pressure, one contact electrical interlocking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209016795U true CN209016795U (en) | 2019-06-21 |
Family
ID=66843911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822149113.4U Expired - Fee Related CN209016795U (en) | 2018-12-20 | 2018-12-20 | A kind of two inlet wire of low pressure, one contact electrical interlocking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209016795U (en) |
-
2018
- 2018-12-20 CN CN201822149113.4U patent/CN209016795U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Low-voltage two-incoming-line one-contact electrical interlocking system Effective date of registration: 20191108 Granted publication date: 20190621 Pledgee: Zhejiang Chouzhou Commercial Bank Co.,Ltd. Wenzhou Branch Pledgor: HONLE GROUP Co.,Ltd. Registration number: Y2019330000178 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |