CN204028659U - The switchgear remote monitoring terminal that a kind of remote control, remote signalling loop share - Google Patents
The switchgear remote monitoring terminal that a kind of remote control, remote signalling loop share Download PDFInfo
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- CN204028659U CN204028659U CN201420356892.4U CN201420356892U CN204028659U CN 204028659 U CN204028659 U CN 204028659U CN 201420356892 U CN201420356892 U CN 201420356892U CN 204028659 U CN204028659 U CN 204028659U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The switchgear remote monitoring terminal that the utility model provides a kind of remote control, remote signalling loop shares, this terminal comprises: remote control unit and remote signal unit, and described remote control unit is connected with the operating mechanism of switchgear by same circuit with described remote signal unit; Wherein, described remote signal unit is in running order and described remote control unit is not in running order time, gather remote signals by circuit, judge the state of described switchgear according to described remote signals; Described remote control unit is in running order and described remote signal unit is not in running order time, by same circuit, control signal is transferred to described operating mechanism, gauge tap device to carry out point/closes a floodgate.
Description
Technical field
The utility model relates to technical field of automatic control, the switchgear remote monitoring terminal that particularly a kind of remote control, remote signalling loop share.
Background technology
At present, remote monitoring terminal (RTU) has obtained general application at switchgear remote monitoring system, substantially achieves the robotization of control operation and data acquisition.RTU is connected with the operating mechanism of switchgear, can realize remote control switch deciliter by exporting remote signal, and the status information of Real-time Collection switch, thus realize the monitoring of distant place switchgear.
As shown in Figure 1, be the elementary diagram between traditional remote monitoring terminal and the operating mechanism of switchgear.Traditional RTU remote control and remote signalling loop adopt the mode of separately wiring, forceful electric power signal and weak electric signal are separated.If to arrange 2 power cables between every way switch and RTU, article 3, remote signal transmission cable (sub-gate circuit, closing circuit), article 3, remote signals transmission cable calculates, and so at least needs the monitoring that 8 cables could realize every way switch device.For a long time, manufacturer's unprecedented significant improvement in remote control, remote signalling wiring of RTU device, and improving constantly of high reliability, high-level efficiency, low cost being required along with switchgear remote monitoring system instantly, the defect of traditional mode of connection also highlights day by day:
1) the cable amount of laying is large, especially on-the-spot for remote switch, material cost and construction work amount obviously higher;
2) wiring is complicated, and the operation maintenance personnel line inspection, maintenance difficulty are large;
3) remote control and remote signalling flow through completely isolated loop, easily cause mal-telecommunic ation, cause switchgear physical location and RTU collection position information not to be inconsistent when wherein certain cable virtual connection or broken string;
4) number of cables is on the high side, and failure rate is high.
In the building of subsidiary loop, traditional RTU needs to build complicated peripheral subsidiary loop.The control signal of the actual output of RTU is contact displacement signal, is sent to switch operating mechanism place, needs the switching that can realize controlling power supply by relay or contactor circuit conversion.Complicated peripheral loop also exists inevitable shortcoming equally:
1) remote signal needs through relay circuit intermediate conversion, and Signal transmissions reliability reduces greatly;
2) circuit is numerous and diverse, and malfunction elimination, maintenance difficulty are large;
3) components and parts are various, and failure rate is high, and O&M cost is high.
The mode that remote control, remote signalling loop are separately connected up determines the inevitable limitation of traditional RTU in switchgear remote monitoring, and these defects are severe in running environment, seem more outstanding under strong electromagnetic interference environment.So, expect that in the industry one can peripheral circuits, be easy to O&M and possess the RTU device of high reliability.
Utility model content
In order to solve the problem of prior art, the utility model proposes a kind of remote control, remote signalling loop share switchgear remote monitoring terminal (RTU), the remote control that can realize distant place switch by means of only three cables divides/closes a floodgate and remote signals collection.Compared to the mode of connection of traditional RTU at least 8 cables, in material cost, construction and maintenance work amount, operational reliability, all there is significant advantage.
For achieving the above object, the switchgear remote monitoring terminal that the utility model provides a kind of remote control, remote signalling loop shares, this terminal comprises: remote control unit and remote signal unit, and described remote control unit is connected with the operating mechanism of switchgear by same circuit with described remote signal unit; Wherein,
Described remote signal unit is in running order and described remote control unit is not in running order time, gather remote signals by circuit, judge the state of described switchgear according to described remote signals; Described remote control unit is in running order and described remote signal unit is not in running order time, by same circuit, control signal is transferred to described operating mechanism, gauge tap device to carry out point/closes a floodgate.
Optionally, in the utility model one embodiment, described circuit comprises three cables, is respectively: the first cable, the second cable and the 3rd cable.
Optionally, in the utility model one embodiment, described remote control unit comprises the first gauge tap, the second gauge tap and the 3rd gauge tap; Wherein,
One end of described 3rd gauge tap is connected with the zero line controlling power supply, the described other end of the 3rd gauge tap accesses terminal with the 3rd of described remote monitoring terminal and is connected, and the 3rd access terminal of described remote monitoring terminal is connected with the zero terminal of motor in described operating mechanism through described 3rd cable;
One end of described first gauge tap is connected with the live wire controlling power supply, the other end of described first gauge tap and first of described remote monitoring terminal accesses terminal and is connected, first access of described remote monitoring terminal is after terminal is connected in series the first limit switch of described operating mechanism by described first cable, be connected to the reversion terminal of motor in described operating mechanism, described first gauge tap and described 3rd gauge tap close simultaneously, then described remote monitoring terminal exports remote control sub-gate signal;
One end of described second gauge tap is connected with the live wire controlling power supply, the other end of described second gauge tap and second of described remote monitoring terminal accesses terminal and is connected, second access of described remote monitoring terminal is after terminal is connected in series the second limit switch of described operating mechanism by described second cable, be connected to the rotating forward terminal of motor in described operating mechanism, described second gauge tap and described 3rd gauge tap close simultaneously, then described remote monitoring terminal exports remote control switching signal.
Optionally, in the utility model one embodiment, described remote signal unit comprises the 4th gauge tap; Wherein,
First one end, contact of described 4th gauge tap is connected with described DC power anode, the first contact other end of described 4th gauge tap accesses terminal with first of described remote monitoring terminal and is connected, first access of described remote monitoring terminal after terminal is connected in series the first limit switch of described operating mechanism by the first cable, is connected to the reversion terminal of motor in described operating mechanism;
Second one end, contact of described 4th gauge tap is connected with described DC power anode, the second contact other end of described 4th gauge tap accesses terminal with second of described remote monitoring terminal and is connected, second access of described remote monitoring terminal after terminal is connected in series described operating mechanism second limit switch by described second cable, is connected to the rotating forward terminal of motor in described operating mechanism;
The 3rd one end, contact of described 4th gauge tap is connected with DC power cathode, the 3rd contact other end of described 4th gauge tap accesses terminal with the 3rd of described remote monitoring terminal and is connected, and the 3rd access terminal of described remote monitoring terminal is connected with the zero terminal of motor in described operating mechanism by described 3rd cable;
Three contacts of described 4th gauge tap close simultaneously for switchgear point, the collection of co-bit remote signals.
Optionally, in the utility model one embodiment, described remote control unit also comprises: the 5th gauge tap and the 6th gauge tap; Wherein,
Described 5th gauge tap is connected between described remote monitoring terminal first connection terminal and the second connection terminal, described 6th gauge tap is connected between described remote monitoring terminal second connection terminal and the 3rd connection terminal, described 5th gauge tap and described 6th gauge tap close simultaneously divide for discharging remote control/closing operation is present in the residual voltage of circuit.
The technical solution of the utility model uses 3 cables to solve the problem that traditional RTU wiring is complicated, peripheral circuit is complicated and reliability is low.Compared to traditional RTU, the utility model has significant advantage:
1) monitoring realizing each switchgear only needs 3 cables, compares to the mode of at least 8 traditional cables, greatly reduces cable and interface quantity, reduces failure rate;
2) decrease the workload that on-site cable is laid, malfunction elimination, operation maintenance operate more simple and easy to do;
3) because Remote control uses identical transmission channel, as long as ensure the reliable connection of passage, there will not be the wrong report phenomenon of remote signals, system operation reliability is improved greatly;
4) simple wiring simplifies the design of operating mechanism, and operating mechanism only need provide limit switch and monophase machine rotating interface, without the need to particular design.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the elementary diagram between traditional remote monitoring terminal and the operating mechanism of switchgear;
Fig. 2 is the elementary diagram between the switchgear remote monitoring terminal that shares of a kind of remote control, the remote signalling loop that the utility model proposes and the operating mechanism of switchgear;
Line graph between the switchgear remote monitoring terminal that Fig. 3 is the remote control of the present embodiment, remote signalling loop shares and the operating mechanism of switchgear;
The remote signalling circuit theory figure of the switchgear remote monitoring terminal that Fig. 4 is the remote control of the present embodiment, remote signalling loop shares;
The remote control closing circuit schematic diagram of the switchgear remote monitoring terminal that Fig. 5 is the remote control of the present embodiment, remote signalling loop shares;
The remote control sub-gate circuit schematic diagram of the switchgear remote monitoring terminal that Fig. 6 is the remote control of the present embodiment, remote signalling loop shares.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In order to realize remote control, remote signalling loop shares, the utility model adopts the principle of time-sharing multiplex: namely switchgear remote monitoring terminal comprises: remote control unit and remote signal unit, and described remote control unit is connected with the operating mechanism of switchgear by same circuit with described remote signal unit.Without point/closing operation situation under, remote signal unit is in running order, and remote control unit is not in running order, and now line flows is through weak current signal; And perform point/closing operation time, RTU switches to rapidly remote control circuit, directly control signal is exported to operating mechanism, now cable short-time switching-off remote signalling loop, flows through heavy-current control signal, when after control signal end of output, recover remote signalling loop.
As shown in Figure 2, the elementary diagram between the switchgear remote monitoring terminal shared for a kind of remote control, the remote signalling loop that the utility model proposes and the operating mechanism of switchgear.This terminal comprises: remote control unit 201 and remote signal unit 202, and described remote control unit 201 is connected with the operating mechanism of switchgear by same circuit with described remote signal unit 202; Wherein,
Described remote signal unit 202 is in running order and described remote control unit 201 is not in running order time, gather remote signals by circuit, judge the state of described switchgear according to described remote signals; Described remote control unit 201 is in running order and described remote signal unit 202 is not in running order time, by same circuit, control signal is transferred to described operating mechanism, gauge tap device to carry out point/closes a floodgate.
Preferably, described circuit comprises three cables, is respectively: the first cable L1, the second cable L2 and the 3rd cable L3.
Preferably, described remote control unit comprises the first gauge tap K1, the second gauge tap K2 and the 3rd gauge tap K3; Wherein,
One end of described 3rd gauge tap K3 is connected with the zero line N controlling power supply, the described other end of the 3rd gauge tap K3 accesses terminal T3 with the 3rd of described remote monitoring terminal and is connected, and the 3rd access terminal T3 of described remote monitoring terminal is connected with the zero terminal of motor in described operating mechanism through described 3rd cable L3;
One end of described first gauge tap K1 is connected with the live wire L controlling power supply, the other end of described first gauge tap K1 and first of described remote monitoring terminal accesses terminal T1 and is connected, first access terminal T1 of described remote monitoring terminal is connected in series the first limit switch SQ1 of described operating mechanism by described first cable L1 after, be connected to the reversion terminal of motor in described operating mechanism, described first gauge tap K1 and described 3rd gauge tap K3 closes simultaneously, then described remote monitoring terminal exports remote control sub-gate signal;
One end of described second gauge tap K2 is connected with the live wire L controlling power supply, the other end of described second gauge tap K2 and second of described remote monitoring terminal accesses terminal T2 and is connected, second access terminal T2 of described remote monitoring terminal is connected in series the second limit switch SQ2 of described operating mechanism by described second cable L2 after, be connected to the rotating forward terminal of motor in described operating mechanism, described second gauge tap K2 and described 3rd gauge tap K3 closes simultaneously, then described remote monitoring terminal exports remote control switching signal.
Preferably, described remote signal unit comprises the 4th gauge tap K4; Wherein,
First one end, contact of described 4th gauge tap K4 is connected with described DC power anode, the first contact other end of described 4th gauge tap (K4) accesses terminal T1 with first of described remote monitoring terminal and is connected, first access terminal T1 of described remote monitoring terminal is connected in series the first limit switch SQ1 of described operating mechanism by the first cable L1 after, be connected to the reversion terminal of motor in described operating mechanism;
Second one end, contact of described 4th gauge tap K4 is connected with described DC power anode, the second contact other end of described 4th gauge tap K4 accesses terminal T2 with second of described remote monitoring terminal and is connected, after second access terminal T2 of described remote monitoring terminal is connected in series described operating mechanism second limit switch SQ2 by described second cable L2, be connected to the rotating forward terminal of motor in described operating mechanism;
The 3rd one end, contact of described 4th gauge tap K4 is connected with DC power cathode, the 3rd contact other end of described 4th gauge tap K4 accesses terminal T3 with the 3rd of described remote monitoring terminal and is connected, and the 3rd access terminal T3 of described remote monitoring terminal is connected with the zero terminal of motor in described operating mechanism by described 3rd cable L3.
Three contacts of described 4th gauge tap K4 close simultaneously for switchgear point, the collection of co-bit remote signals.Preferably, described remote control unit also comprises: the 5th gauge tap K5 and the 6th gauge tap K6; Wherein,
Described 5th gauge tap K5 is connected between described remote monitoring terminal first connection terminal T1 and the second connection terminal T2, described 6th gauge tap K6 is connected between described remote monitoring terminal second connection terminal T2 and the 3rd connection terminal T3, described 5th gauge tap K5 and described 6th gauge tap K6 close simultaneously divide for discharging remote control/closing operation is present in the residual voltage of circuit.
As shown in Figure 3, the line graph between the switchgear remote monitoring terminal shared for the remote control of the present embodiment, remote signalling loop and the operating mechanism of switchgear.When RTU without point/closing operation, 4th gauge tap K4 closes, first gauge tap K1, the second gauge tap K2, the 3rd gauge tap K3, the 5th gauge tap K5, the 6th gauge tap K6 disconnect, the built-in DC power supplier of RTU by voltage-drop loading in described three cables, for remote signals collection; When remote control is closed a floodgate, the 4th gauge tap K4 of RTU disconnects, and cuts off remote signalling loop, second gauge tap K2, the 3rd gauge tap K3 are closed, realize motor to rotate forward (as being sub-switching operation, namely the first gauge tap K1, the 3rd gauge tap K3 are closed, realize motor reversal); After remote control terminates, first gauge tap K1, the second gauge tap K2, the 3rd gauge tap K3 of RTU disconnect, 5th gauge tap K5, the 6th gauge tap K6 are all closed, release circuit residual voltage, judge that circuit is with no pressure without after stream, 5th gauge tap K5, the 6th gauge tap K6 all disconnect, and the 4th gauge tap K4 closes, and recover remote signalling loop.
In general, the actuation time of switchgear is of short duration, and in the process that this is of short duration, switch is generally the intermediateness of a point position, co-bit, and to this, we are without the need to particular concern.Therefore be acceptable for the of short duration cut-out in remote signalling loop in remote control process.
In the remote signalling loop of the technical program, the mutual transfer process of remote control circuit, take into full account the misoperation that the RTU gauge tap K1 ~ K6 in handoff procedure may occur, or the residual voltage that circuit may occur, remote signal (forceful electric power) is avoided to flow into the remote signal unit of RTU and cause device to damage, the technical program can carry out electric discharge fully before remote signal loads and voltage, electric current judge, under the prerequisite ensureing circuit " pure ", just loop switch can be entered.
1, remote signalling pattern:
As shown in Figure 4, be the remote signalling circuit theory figure of the switchgear remote monitoring terminal of the present embodiment.When without point/closing operation time, the RTU continuous firing of the present embodiment in remote signals acquisition state, the positional information of Real-time Collection distant place switch.In figure 3, now K1, K2, K3, K5, K6 are all in off-state, only have K4 to close.Voltage is loaded on a point position, co-bit two remote signalling loops by RTU built-in 24V power module respectively, remote signalling loop serial connection limit switch (limit switch feedback switch device location information), and directly forms loop by motor coil.As shown in Figure 4, because this motor is for exchanging clockwise and anticlockwise motor, it is equivalent to wire by Inside coil during small direct current signal, has no effect to Signal transmissions.Now the positional information of switch is fed back by limit switch SQ1 and SQ2, if represent that limit switch disconnects with 0, represent that limit switch closes with 1, the present embodiment RTU may collect four kinds of status informations:
SQ1-SQ2:1-0, representation switch device is in co-bit;
SQ1-SQ2:0-1, representation switch device is in a point position;
SQ1-SQ2:1-1, representation switch device to be in point/combined floodgate interposition, namely divides/close a floodgate unsuccessful;
SQ1-SQ2:0-0, represents connecting line break or limit switch fault;
Like this, various situation can be understood very clearly by 4 kinds of states, so that operating personnel take rational measure.
2, remote control is closed a floodgate:
As shown in Figure 5, be the remote control closing circuit schematic diagram of the switchgear remote monitoring terminal of the present embodiment.Suppose that present switchgear is in a point position state, existing requirement performs closing operation.In figure 3, now RTU disconnects K4, and whether the inner K4 of judgement reliably disconnects and (prevent forceful electric power to be strayed into remote signal module, if not, then report an error, shut-down operation), if so, closed K2, K3, directly load on closing circuit by 220V alternating voltage immediately, as shown in Figure 5, due to closing circuit serial connection point position limit switch SQ2, and this time-division position limit switch SQ2 is closure state, and now control voltage flows through the rotating forward loop that SQ2 is loaded into motor, electric motor starting, rotates forward.
Because the power of motor is different, the not equal reason of load, the time of its closing operation may be not quite similar, and the utility model RTU takes to export the adjustable design of control signal, the load time of 220V alternating voltage is set as slightly being longer than closing operating time.Such as operating mechanism completes closing operation needs 5s, and control power supply output time is set as 5.5s (prevent external cause from causing divide-shut brake not in place) by the utility model RTU.
After motor rotates forward 5s, switch closes a floodgate and puts in place, and SQ2 disconnects, and motor power cuts off, motor stalling.After 0.5s, RTU disconnects K2, K3, stops exporting controlling power supply.And judge whether K2, K3 reliably disconnect immediately, (prevent subsequent operation from causing short circuit, if not, then report an error, shut-down operation), if so, then close K5, K6 immediately, release circuit residual voltage, after 1-2s (time is adjustable), disconnect K5, K6, and judge that whether K5, K6 reliably disconnect and (prevent follow-up switching remote signalling from causing short circuit, if not, then report an error, shut-down operation), if, then closed K4, switches to remote signalling loop (remote signalling information acquisition principle please refer to the introduction of above-mentioned remote signalling pattern).Now co-bit limit switch SQ1 closes, and a point position limit switch SQ2 disconnects, and positional information is fed back by RTU smoothly, closing operation success.
3, remote control separating brake:
Introduced by above-mentioned remote control making process, obviously can the reasoning remote control process of closing a floodgate.
As shown in Figure 6, be the remote control sub-gate circuit schematic diagram of the switchgear remote monitoring terminal of the present embodiment.Suppose that present switchgear is in co-bit state, existing requirement performs sub-switching operation.In figure 3, now RTU disconnects K4, and whether the inner K4 of judgement reliably disconnects (prevent forceful electric power to be strayed into remote signal module, if not, then report an error, shut-down operation), and if so, closed K1, K3, directly load on sub-gate circuit by 220V alternating voltage immediately.As shown in Figure 6, due to sub-gate circuit serial connection co-bit limit switch SQ1, and now co-bit limit switch SQ1 is closure state, and now control voltage flows through the reversion loop that SQ1 is loaded into motor, electric motor starting, reversion.
When after motor reversal 5s, switch separating brake puts in place, and SQ1 disconnects, and motor power cuts off, motor stalling.After 0.5s, RTU disconnects K1, K3, stops exporting controlling power supply.And judge whether K1, K3 reliably disconnect immediately, (prevent subsequent operation from causing short circuit, if not, then report an error, shut-down operation), if so, then close K5, K6 immediately, release circuit residual voltage, after 1-2s (time is adjustable), disconnect K5, K6, and judge that whether K5, K6 reliably disconnect and (prevent follow-up switching remote signalling from causing short circuit, if not, then report an error, shut-down operation), if, then closed K4, switches to remote signalling loop (remote signalling information acquisition principle please refer to the introduction of above-mentioned remote signalling pattern).This time-division, limit switch SQ2 in position closed, and a point position limit switch SQ2 disconnects, and positional information is fed back by RTU smoothly, closing operation success.
Said process only describes the operating process under certain application-specific, and the practical application not representing the utility model RTU is only confined to this.The principle of the utility model RTU is described above, but its remote control output time, discharge time etc. are adjustable, can regulate, ensure its flexible Application according to different application.
From above-described embodiment, remote control circuit, remote signalling loop are integrated, take the mode of time-sharing multiplex, greatly reduce cable use amount, the mode of connection of traditional at least 8 cables is optimized for 3 cables, and eliminates complicated peripheral circuit, improve operational reliability.
By the rigorous Logic judgment of RTU inside, avoid remote control, remote signalling loop shares the risk causing equipment and component damage.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a switchgear remote monitoring terminal, is characterized in that, this terminal comprises: remote control unit and remote signal unit, and described remote control unit is connected with the operating mechanism of switchgear by same circuit with described remote signal unit; Wherein,
Described remote signal unit is in running order and described remote control unit is not in running order time, gather remote signals by circuit, judge the state of described switchgear according to described remote signals; Described remote control unit is in running order and described remote signal unit is not in running order time, by same circuit, control signal is transferred to described operating mechanism, gauge tap device to carry out point/closes a floodgate.
2. terminal as claimed in claim 1, it is characterized in that, described circuit comprises three cables, is respectively: the first cable (L1), the second cable (L2) and the 3rd cable (L3).
3. terminal as claimed in claim 2, it is characterized in that, described remote control unit comprises the first gauge tap (K1), the second gauge tap (K2) and the 3rd gauge tap (K3); Wherein,
One end of described 3rd gauge tap (K3) is connected with the zero line (N) controlling power supply, the other end of described 3rd gauge tap (K3) accesses terminal (T3) with the 3rd of described remote monitoring terminal and is connected, and the 3rd access terminal (T3) of described remote monitoring terminal is connected with the zero terminal of motor in described operating mechanism through described 3rd cable (L3);
One end of described first gauge tap (K1) is connected with the live wire (L) controlling power supply, the described other end of the first gauge tap (K1) and first of described remote monitoring terminal are accessed terminal (T1) and are connected, first access terminal of described remote monitoring terminal is after (T1) be connected in series first limit switch (SQ1) of described operating mechanism by described first cable (L1), be connected to the reversion terminal of motor in described operating mechanism, described first gauge tap (K1) and described 3rd gauge tap (K3) close simultaneously, then described remote monitoring terminal exports remote control sub-gate signal,
One end of described second gauge tap (K2) is connected with the live wire (L) controlling power supply, the described other end of the second gauge tap (K2) and second of described remote monitoring terminal are accessed terminal (T2) and are connected, second access terminal of described remote monitoring terminal is after (T2) be connected in series second limit switch (SQ2) of described operating mechanism by described second cable (L2), be connected to the rotating forward terminal of motor in described operating mechanism, described second gauge tap (K2) and described 3rd gauge tap (K3) close simultaneously, then described remote monitoring terminal exports remote control switching signal.
4. terminal as claimed in claim 2 or claim 3, it is characterized in that, described remote signal unit comprises the 4th gauge tap (K4); Wherein,
First one end, contact of described 4th gauge tap (K4) is connected with described DC power anode, the first contact other end of described 4th gauge tap (K4) accesses terminal (T1) with first of described remote monitoring terminal and is connected, first access terminal of described remote monitoring terminal after (T1) be connected in series first limit switch (SQ1) of described operating mechanism by the first cable (L1), is connected to the reversion terminal of motor in described operating mechanism;
Second one end, contact of described 4th gauge tap (K4) is connected with described DC power anode, the second contact other end of described 4th gauge tap (K4) accesses terminal (T2) with second of described remote monitoring terminal and is connected, second access terminal of described remote monitoring terminal after (T2) be connected in series described operating mechanism second limit switch (SQ2) by described second cable (L2), is connected to the rotating forward terminal of motor in described operating mechanism;
The 3rd one end, contact of described 4th gauge tap (K4) is connected with DC power cathode, the 3rd contact other end of described 4th gauge tap (K4) accesses terminal (T3) with the 3rd of described remote monitoring terminal and is connected, and the 3rd access terminal (T3) of described remote monitoring terminal is connected with the zero terminal of motor in described operating mechanism by described 3rd cable (L3);
Three contacts of described 4th gauge tap (K4) close simultaneously for switchgear point, the collection of co-bit remote signals.
5. terminal as claimed in claim 4, it is characterized in that, described remote control unit also comprises: the 5th gauge tap (K5) and the 6th gauge tap (K6); Wherein,
Described 5th gauge tap (K5) is connected between described remote monitoring terminal first connection terminal (T1) and the second connection terminal (T2), described 6th gauge tap (K6) is connected between described remote monitoring terminal second connection terminal (T2) and the 3rd connection terminal (T3), described 5th gauge tap (K5) and described 6th gauge tap (K6) close simultaneously divide for discharging remote control/closing operation is present in the residual voltage of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356892.4U CN204028659U (en) | 2014-06-30 | 2014-06-30 | The switchgear remote monitoring terminal that a kind of remote control, remote signalling loop share |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356892.4U CN204028659U (en) | 2014-06-30 | 2014-06-30 | The switchgear remote monitoring terminal that a kind of remote control, remote signalling loop share |
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| CN204028659U true CN204028659U (en) | 2014-12-17 |
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| CN201420356892.4U Withdrawn - After Issue CN204028659U (en) | 2014-06-30 | 2014-06-30 | The switchgear remote monitoring terminal that a kind of remote control, remote signalling loop share |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049619A (en) * | 2014-06-30 | 2014-09-17 | 北京煜能电仪自动化技术有限公司 | Switching device remote monitoring terminal shared by remote control loop and remote communication loop |
-
2014
- 2014-06-30 CN CN201420356892.4U patent/CN204028659U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049619A (en) * | 2014-06-30 | 2014-09-17 | 北京煜能电仪自动化技术有限公司 | Switching device remote monitoring terminal shared by remote control loop and remote communication loop |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20170329 |