CN205450129U - Three -phase formula looped netowrk cabinet secondary nuclear phase ware - Google Patents
Three -phase formula looped netowrk cabinet secondary nuclear phase ware Download PDFInfo
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- CN205450129U CN205450129U CN201620233600.7U CN201620233600U CN205450129U CN 205450129 U CN205450129 U CN 205450129U CN 201620233600 U CN201620233600 U CN 201620233600U CN 205450129 U CN205450129 U CN 205450129U
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Abstract
The utility model provides a three -phase formula looped netowrk cabinet secondary nuclear phase ware, includes nuclear phase ware casing, LED pilot lamp, switch and contact, nuclear phase ware casing is a square spatial structure, and the contact includes A1 contact, B1 contact, C1 contact, A2 contact, B2 contact and C2 contact, and the LED pilot lamp includes lamp L1, lamp L2, lamp L3, lamp L4, lamp L5 and lamp L6, the LED pilot lamp sets up in the front of nuclear phase ware casing, is provided with A1 contact, B1 contact and C1 contact in a side of nuclear phase ware casing, is provided with A2 contact, B2 contact and C2 contact in another side of nuclear phase ware casing, set up the nuclear phase device in nuclear phase ware casing, the nuclear phase device links to each other with contact, switch and LED lamp respectively, the utility model discloses can audio -visually observe is that which phase sequence makes a mistake, has increased the rate of accuracy of nuclear phase, greatly simple and convenient operation.
Description
Technical field
This utility model relates to electric power system power distribution field of engineering technology, specifically a kind of three-phase type ring main unit secondary phasing tester.
Background technology
Nuclear phase refers to carry out two-way power supply in power system or loop the approval of phase sequence, to guarantee that total system three-phase phase-sequence is unified.The harm of phase sequence mistake is serious, can cause serious short circuit accident, will burn transformator during paired running, motor reversal, electrical equipment the most also can be caused to damage, the serious consequence such as gauge table metering inefficacy.Therefore, the relevant operational management of power system requires clear stipulaties, all relate to the newly-built, renovating and enlarging or circuit of change and become (joining) electricity work, nuclear phase must be carried out after end-of-job.
Different according to nuclear phase position, it is divided into a nuclear phase and secondary nuclear phase.Nuclear phase is to use phasing tester directly to contact exposed primary side conductor, and a signal is carried out nuclear phase；Secondary nuclear phase be utilize PT that signal is converted to the secondary singal of low pressure after, secondary singal is carried out nuclear phase, is one indirectly nuclear phase.Therefore, phasing tester is also corresponding is divided into a phasing tester and secondary phasing tester.Clearly as cable does not has bare spots, so relating to the work of cable, secondary nuclear phase can only be carried out at ring main unit.
Existing ring main unit secondary phasing tester is all single-phase type, and i.e. it only has two contacts, and during nuclear phase, two contacts insert in the nuclear phase jack of two-way power supply respectively, and phasing tester will indicate this biphase whether homophase, to carry out altogether 9 nuclear phases operations and just can obtain a result.It can be divided into two kinds: a kind of active, it first by secondary singal through A/D change, then calculate phase contrast to each other realize judge, this equipment manufacturing cost is higher, and onsite application is less；Another kind is passive type, a display lamp of connecting between two contacts, if both sides phase place is incorrect, just has voltage difference between them, and lamp will be lit.If instead correct, lamp would not be lit, and owing to operation principle is simple, cost is low, and accuracy rate is the highest, so the most frequently used in onsite application is exactly the secondary phasing tester of this passive type.
Utility model content
The purpose of this utility model is to provide a kind of three-phase type ring main unit secondary phasing tester, is used for solving nuclear phase complex operation in prior art, nuclear phase mistake easily occurs, the problem caused a serious accident.
The technical scheme in the invention for solving the technical problem is: a kind of three-phase type ring main unit secondary phasing tester, it is characterized in that, including phasing tester housing, LED light, contact and switch；Described phasing tester housing is a square cubic structure, and described contact includes A1 contact, B1 contact, C1 contact, A2 contact, B2 contact and C2 contact, and described LED light includes lamp L1, lamp L2, lamp L3, lamp L4, lamp L5 and lamp L6；Described LED light is arranged on the front of phasing tester housing in two rows of threely, a side of described phasing tester housing is provided with A1 contact, B1 contact and C1 contact, another side of phasing tester housing is provided with A2 contact, B2 contact and C2 contact；Being provided with phase checking device in phasing tester housing, described phase checking device is connected with contact, switch and LED respectively.
Further, described switch includes three linkage hand switches, one end of three described linkage hand switches is connected with A1 contact, B1 contact and C1 contact respectively, the other end of three linkage hand switches is connected with one end of phase checking device, and the other end of described phase checking device is connected with A2 contact, B2 contact and C2 contact respectively.
Further, described phase checking device includes resistance R1, relay K M1, relay K M2, relay K M3 and relay K M4；Described phase checking device constitutes relay coil loop and relay contact loop.
Further, the concrete structure in described relay coil loop is:
One end of the coil k1 of described relay K M1 is connected with A1 contact, the other end of coil k1 is connected with A2 contact, one end of the coil k2 of described relay K M2 is connected with B1 contact, the other end of coil k2 is connected with B2 contact, one end of the coil k3 of described relay K M3 is connected with C1 contact, the other end of coil k3 is connected with C2 contact, and one end of the coil k4 of described relay K M4 is connected with A1 contact, and the other end of coil k4 is connected with B2 contact.
Further, the concrete structure in described relay contact loop is:
One end of described resistance R1 is connected with A1 contact, and the other end of described resistance R1 one end with one end of normally-closed contact k1-1, one end of normally opened contact k1-2, one end of normally opened contact k1-3, one end of normally-closed contact k1-4, one end of normally opened contact k1-5 and the normally opened contact k1-6 of relay K M1 respectively is connected；
The other end of the normally-closed contact k1-1 of described relay K M1 is connected with one end of the normally-closed contact k2-1 of relay K M2, the other end of the normally-closed contact k2-1 of relay K M2 is connected with one end of the normally-closed contact k3-1 of relay K M3, the other end of the normally-closed contact k3-1 of relay K M3 is connected with one end of lamp L1, and the other end of lamp L1 is connected with B1 contact；
The other end of the normally opened contact k1-2 of described relay K M1 is connected with one end of the normally opened contact k2-2 of relay K M2, the other end of the normally opened contact k2-2 of relay K M2 is connected with one end of the normally-closed contact k3-2 of relay K M3, the other end of the normally-closed contact k3-2 of relay K M3 is connected with one end of lamp L2, and the other end of lamp L2 is connected with B1 contact；
The other end of the normally opened contact k1-3 of described relay K M1 is connected with one end of the normally-closed contact k2-3 of relay K M2, the other end of the normally-closed contact k2-3 of relay K M2 is connected with one end of the normally opened contact k3-3 of relay K M3, the other end of the normally opened contact k3-3 of relay K M3 is connected with one end of lamp L3, and the other end of lamp L3 is connected with B1 contact；
The other end of the normally-closed contact k1-4 of described relay K M1 is connected with one end of the normally opened contact k2-4 of relay K M2, the other end of the normally opened contact k2-4 of relay K M2 is connected with one end of the normally opened contact k3-4 of relay K M3, the other end of the normally opened contact k3-4 of relay K M3 is connected with one end of lamp L4, and the other end of lamp L4 is connected with B1 contact；
The other end of the normally opened contact k1-5 of described relay K M1 is connected with one end of the normally opened contact k2-5 of relay K M2, the other end of the normally opened contact k2-5 of relay K M2 is connected with one end of the normally opened contact k3-5 of relay K M3, the other end of the normally opened contact k3-5 of relay K M3 is connected with one end of the normally opened contact k4-1 of relay K M4, the other end of the normally opened contact k4-1 of KM4 is connected with one end of lamp L5, and the other end of lamp L5 is connected with B1 contact；
The other end of the normally opened contact k1-6 of described relay K M1 is connected with one end of the normally opened contact k2-6 of relay K M2, the other end of the normally opened contact k2-6 of relay K M2 is connected with one end of the normally opened contact k3-6 of relay K M3, the other end of the normally opened contact k3-6 of relay K M3 is connected with one end of the normally-closed contact k4-2 of relay K M4, the other end of the normally-closed contact k4-2 of KM4 is connected with one end of lamp L6, and the other end of lamp L6 is connected with B1 contact.
The beneficial effects of the utility model are: a kind of three-phase type ring main unit secondary phasing tester that this utility model provides, utilize three relays and a resistance, constitute a three-phase phase checking device, once-through operation just can check that the phase sequence of three-phase is the most wrong, this utility model is also provided with six LED and reports to the police phase sequence mistake, can observe it is which phase sequence makes a mistake intuitively, add the operation of the accuracy rate of nuclear phase, greatly simplicity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is relay coil loop circuit figure of the present utility model；
Fig. 3 is relay contact loop circuit figure of the present utility model；
In figure: 1, phasing tester housing, 2, phase checking device, 3, switch.
Detailed description of the invention
If Fig. 1 is to as it is shown on figure 3, this utility model includes phasing tester housing 1, LED light, switch 3 and contact.As it is shown in figure 1, phasing tester housing 1 is a square cubic structure, contact includes A1 contact, B1 contact, C1 contact, A2 contact, B2 contact and C2 contact, and LED light includes lamp L1, lamp L2, lamp L3, lamp L4, lamp L5 and lamp L6；Six LED lights are arranged on the front of phasing tester housing 1 in two rows of threely, a side of phasing tester housing 1 is provided with A1 contact, B1 contact and C1 contact, another side of phasing tester housing 1 is provided with A2 contact, B2 contact and C2 contact.Being provided with phase checking device 2 in phasing tester housing, phase checking device 2 phase checking device is connected with contact, switch and LED respectively.
Switch includes three linkage hand switches, one end of three linkage hand switches is connected with A1 contact, B1 contact and C1 contact respectively, the other end of three linkage hand switches is connected with one end of phase checking device, and the other end of phase checking device is connected with A2 contact, B2 contact and C2 contact respectively.
Phase checking device 2 includes resistance R1, relay K M1, relay K M2, relay K M3 and relay K M4；Phase checking device constitutes relay coil loop and relay contact loop.
As in figure 2 it is shown, the concrete structure in relay coil loop is:
One end of the coil k1 of relay K M1 is connected with A1 contact, the other end of coil k1 is connected with A2 contact, one end of the coil k2 of relay K M2 is connected with B1 contact, the other end of coil k2 is connected with B2 contact, one end of the coil k3 of relay K M3 is connected with C1 contact, the other end of coil k3 is connected with C2 contact, and one end of the coil k4 of relay K M4 is connected with A1 contact, and the other end of coil k4 is connected with B2 contact.
As it is shown on figure 3, the concrete structure in relay contact loop is:
One end of resistance R1 is connected with A1 contact, and the other end of resistance R1 one end with one end of normally-closed contact k1-1, one end of normally opened contact k1-2, one end of normally opened contact k1-3, one end of normally-closed contact k1-4, one end of normally opened contact k1-5 and the normally opened contact k1-6 of relay K M1 respectively is connected；R1 is protective resistance, prevents from burning out LED because voltage is excessive.
The other end of the normally-closed contact k1-1 of relay K M1 is connected with one end of the normally-closed contact k2-1 of relay K M2, the other end of the normally-closed contact k2-1 of relay K M2 is connected with one end of the normally-closed contact k3-1 of relay K M3, the other end of the normally-closed contact k3-1 of relay K M3 is connected with one end of lamp L1, and the other end of lamp L1 is connected with B1 contact；
The other end of the normally opened contact k1-2 of relay K M1 is connected with one end of the normally opened contact k2-2 of relay K M2, the other end of the normally opened contact k2-2 of relay K M2 is connected with one end of the normally-closed contact k3-2 of relay K M3, the other end of the normally-closed contact k3-2 of relay K M3 is connected with one end of lamp L2, and the other end of lamp L2 is connected with B1 contact；
The other end of the normally opened contact k1-3 of relay K M1 is connected with one end of the normally-closed contact k2-3 of relay K M2, the other end of the normally-closed contact k2-3 of relay K M2 is connected with one end of the normally opened contact k3-3 of relay K M3, the other end of the normally opened contact k3-3 of relay K M3 is connected with one end of lamp L3, and the other end of lamp L3 is connected with B1 contact；
The other end of the normally-closed contact k1-4 of relay K M1 is connected with one end of the normally opened contact k2-4 of relay K M2, the other end of the normally opened contact k2-4 of relay K M2 is connected with one end of the normally opened contact k3-4 of relay K M3, the other end of the normally opened contact k3-4 of relay K M3 is connected with one end of lamp L4, and the other end of lamp L4 is connected with B1 contact；
The other end of the normally opened contact k1-5 of relay K M1 is connected with one end of the normally opened contact k2-5 of relay K M2, the other end of the normally opened contact k2-5 of relay K M2 is connected with one end of the normally opened contact k3-5 of relay K M3, the other end of the normally opened contact k3-5 of relay K M3 is connected with one end of the normally opened contact k4-1 of relay K M4, the other end of the normally opened contact k4-1 of KM4 is connected with one end of lamp L5, and the other end of lamp L5 is connected with B1 contact；
The other end of the normally opened contact k1-6 of relay K M1 is connected with one end of the normally opened contact k2-6 of relay K M2, the other end of the normally opened contact k2-6 of relay K M2 is connected with one end of the normally opened contact k3-6 of relay K M3, the other end of the normally opened contact k3-6 of relay K M3 is connected with one end of the normally-closed contact k4-2 of relay K M4, the other end of the normally-closed contact k4-2 of KM4 is connected with one end of lamp L6, and the other end of lamp L6 is connected with B1 contact.
Table 1
As shown in table 1, exhaustive all of nuclear phase situation, in table, A1, B1, C1 represent the three-phase of a road power supply, and A2, B2, C2 represent the three-phase of another road power supply.Nuclear phase result one has 6 kinds, except a kind of situation phase sequence correctly in addition to, the phase sequence of remaining 5 kinds of situation is the most wrong.When there is certain specific mode of connection, corresponding display lamp will light, and well-known tells staff nuclear phase result.
Owing to transformator is different from the design of switch cubicle, and other a variety of causes, it is susceptible to the phase sequence mistake of three phase mains, causes significant impact.
If two-way power phase is completely correct, the equal no-voltage in both sides of relay coil k1, k2, k3, corresponding normally-closed contact k1-1, k2-1 and k3-1 persistently close, and L1 lamp is lit, and remaining lamp will not be lit.
If two-way power supply AB two connects instead, relay coil k1, k2 will be switched on, and corresponding normally opened contact k1-2 and k2-2 closes, and L2 lamp is lit；It is similar with this situation that AC connects instead, BC connects, and is not repeated.
If two-way power supply ABC three-phase all connects instead, relay coil k1, k2, k3 will be switched on, and corresponding normally opened contact all closes.Connect completely due to three-phase counter have forward connect instead and reversely connect anti-two kinds of situations, the most also need add relay K 4 judge.If forward connecing anti-, it is switched on that relay coil k4 two ends will connect A1 and B2, coil k4, and normally opened contact k4-1 closes, and L5 lamp is lit；Otherwise, as anti-in inversely connect, relay coil k4 two ends will connect A1 and A2, coil k4 and will not be switched on, and normally-closed contact k4-2 still closes, and L6 lamp is lit.
Although being connected by relay coil k4 with k2 between A1 with B1, but by selecting suitable relay model, can make the voltage difference between A1 and B1 can not simultaneously turn on the two relay.In like manner, can not be switched between A2 and B2.
It it is more than specific embodiment of the utility model; it is not limiting as protection domain of the present utility model; under not changing principle of the present utility model, various deformation that those of ordinary skill in the art is done on this basis or equivalent, all in protection domain of the present utility model.
Claims (5)
1. a three-phase type ring main unit secondary phasing tester, is characterized in that, including phasing tester housing, LED light, contact and switch；Described phasing tester housing is a square cubic structure, and described contact includes A1 contact, B1 contact, C1 contact, A2 contact, B2 contact and C2 contact, and described LED light includes lamp L1, lamp L2, lamp L3, lamp L4, lamp L5 and lamp L6；Described LED light is arranged on the front of phasing tester housing in two rows of threely, a side of described phasing tester housing is provided with A1 contact, B1 contact and C1 contact, another side of phasing tester housing is provided with A2 contact, B2 contact and C2 contact；Being provided with phase checking device in phasing tester housing, described phase checking device is connected with contact, switch and LED respectively.
A kind of three-phase type ring main unit secondary phasing tester the most according to claim 1, it is characterized in that, described switch includes three linkage hand switches, one end of three described linkage hand switches is connected with A1 contact, B1 contact and C1 contact respectively, the other end of three linkage hand switches is connected with one end of phase checking device, and the other end of described phase checking device is connected with A2 contact, B2 contact and C2 contact respectively.
A kind of three-phase type ring main unit secondary phasing tester the most according to claim 2, is characterized in that, described phase checking device includes resistance R1, relay K M1, relay K M2, relay K M3 and relay K M4；Described phase checking device includes relay coil loop and relay contact loop.
A kind of three-phase type ring main unit secondary phasing tester the most according to claim 3, is characterized in that, the concrete structure in described relay coil loop is:
One end of the coil k1 of described relay K M1 is connected with A1 contact, the other end of coil k1 is connected with A2 contact, one end of the coil k2 of described relay K M2 is connected with B1 contact, the other end of coil k2 is connected with B2 contact, one end of the coil k3 of described relay K M3 is connected with C1 contact, the other end of coil k3 is connected with C2 contact, and one end of the coil k4 of described relay K M4 is connected with A1 contact, and the other end of coil k4 is connected with B2 contact.
A kind of three-phase type ring main unit secondary phasing tester the most according to claim 3, is characterized in that, the concrete structure in described relay contact loop is:
One end of described resistance R1 is connected with A1 contact, and the other end of described resistance R1 one end with one end of normally-closed contact k1-1, one end of normally opened contact k1-2, one end of normally opened contact k1-3, one end of normally-closed contact k1-4, one end of normally opened contact k1-5 and the normally opened contact k1-6 of relay K M1 respectively is connected；
The other end of the normally-closed contact k1-1 of described relay K M1 is connected with one end of the normally-closed contact k2-1 of relay K M2, the other end of the normally-closed contact k2-1 of relay K M2 is connected with one end of the normally-closed contact k3-1 of relay K M3, the other end of the normally-closed contact k3-1 of relay K M3 is connected with one end of lamp L1, and the other end of lamp L1 is connected with B1 contact；
The other end of the normally opened contact k1-2 of described relay K M1 is connected with one end of the normally opened contact k2-2 of relay K M2, the other end of the normally opened contact k2-2 of relay K M2 is connected with one end of the normally-closed contact k3-2 of relay K M3, the other end of the normally-closed contact k3-2 of relay K M3 is connected with one end of lamp L2, and the other end of lamp L2 is connected with B1 contact；
The other end of the normally opened contact k1-3 of described relay K M1 is connected with one end of the normally-closed contact k2-3 of relay K M2, the other end of the normally-closed contact k2-3 of relay K M2 is connected with one end of the normally opened contact k3-3 of relay K M3, the other end of the normally opened contact k3-3 of relay K M3 is connected with one end of lamp L3, and the other end of lamp L3 is connected with B1 contact；
The other end of the normally-closed contact k1-4 of described relay K M1 is connected with one end of the normally opened contact k2-4 of relay K M2, the other end of the normally opened contact k2-4 of relay K M2 is connected with one end of the normally opened contact k3-4 of relay K M3, the other end of the normally opened contact k3-4 of relay K M3 is connected with one end of lamp L4, and the other end of lamp L4 is connected with B1 contact；
The other end of the normally opened contact k1-5 of described relay K M1 is connected with one end of the normally opened contact k2-5 of relay K M2, the other end of the normally opened contact k2-5 of relay K M2 is connected with one end of the normally opened contact k3-5 of relay K M3, the other end of the normally opened contact k3-5 of relay K M3 is connected with one end of the normally opened contact k4-1 of relay K M4, the other end of the normally opened contact k4-1 of KM4 is connected with one end of lamp L5, and the other end of lamp L5 is connected with B1 contact；
The other end of the normally opened contact k1-6 of described relay K M1 is connected with one end of the normally opened contact k2-6 of relay K M2, the other end of the normally opened contact k2-6 of relay K M2 is connected with one end of the normally opened contact k3-6 of relay K M3, the other end of the normally opened contact k3-6 of relay K M3 is connected with one end of the normally-closed contact k4-2 of relay K M4, the other end of the normally-closed contact k4-2 of KM4 is connected with one end of lamp L6, and the other end of lamp L6 is connected with B1 contact.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620233600.7U CN205450129U (en) | 2016-03-24 | 2016-03-24 | Three -phase formula looped netowrk cabinet secondary nuclear phase ware |
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| CN201620233600.7U CN205450129U (en) | 2016-03-24 | 2016-03-24 | Three -phase formula looped netowrk cabinet secondary nuclear phase ware |
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| CN205450129U true CN205450129U (en) | 2016-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676009A (en) * | 2016-03-24 | 2016-06-15 | 国网山东省电力公司济南供电公司 | Three-phase type ring network cabinet secondary phase checking device, and phase checking method thereof |
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2016
- 2016-03-24 CN CN201620233600.7U patent/CN205450129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676009A (en) * | 2016-03-24 | 2016-06-15 | 国网山东省电力公司济南供电公司 | Three-phase type ring network cabinet secondary phase checking device, and phase checking method thereof |
| CN105676009B (en) * | 2016-03-24 | 2018-11-27 | 国网山东省电力公司济南供电公司 | A kind of secondary phasing tester of three-phase type ring network cabinet and its nuclear-phase method |
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