CN204442021U - A kind of remote maintenance device of uninterrupted power supply - Google Patents
A kind of remote maintenance device of uninterrupted power supply Download PDFInfo
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- CN204442021U CN204442021U CN201520190097.7U CN201520190097U CN204442021U CN 204442021 U CN204442021 U CN 204442021U CN 201520190097 U CN201520190097 U CN 201520190097U CN 204442021 U CN204442021 U CN 204442021U
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- 238000012423 maintenance Methods 0.000 title claims abstract description 21
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 claims description 3
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 claims description 3
- 102100021133 Nuclear protein 1 Human genes 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract 2
- 238000012544 monitoring process Methods 0.000 description 7
- 101150118744 UPS1 gene Proteins 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
The utility model proposes a kind of remote maintenance device of uninterrupted power supply, comprise voltage acquisition, switching signal collection and Long-distance Control three loops, draw three ports from voltage acquisition circuit; Long-distance Control loop is by ac power supply, first and second relay in parallel between its both positive and negative polarity, above-mentioned relay is connected with the normally opened contact of third and fourth relay respectively, 3rd relay normally open contact is in parallel with the first relay the 3rd normally opened contact, one end of third and fourth relay connects the negative pole of DC power supply, draw fourth, fifth port respectively from its other end, the positive pole of DC power supply draw the tenth respectively, ten Single port; Second relay normally-closed contact is connected with the first relay, the first relay second normally opened contact extraction the 8th, nine ports; Switching signal acquisition circuit comprises the first relay first normally-closed contact, this contact extraction the 6th, seven ports.Said apparatus can monitor magnitude of voltage and the operating state thereof of storage battery, can Remote its carry out discharge and recharge.
Description
Technical field
The utility model relates to technical field of electric power automation, particularly relate to a kind of can the magnitude of voltage of storage battery and the operating state of storage battery in real time monitoring uninterrupted power supply (ups) Unity, and the remote maintenance device of the uninterrupted power supply of discharge and recharge can be carried out by Remote storage battery.
Background technology
The remote terminal unit (RTU) of transformer station is the terminal equipment of automation system for the power network dispatching, and RTU is responsible for the information transmission between transformer station and dispatch automated system.RTU is powered by uninterrupted power supply, is namely powered by AC and DC duplicate supply, and exchange as main power supply during normal operation, direct current is stand-by power supply.When AC power breaks down, DC power supply transfers main power supply to.
UPS operating state needs to obtain by plant stand person on duty periodical inspection substation equipment.But along with power network development, transformer station's quantity increases, and causes manual patrol cycle stretch-out.Once UPS storage battery breaks down, be only difficult to Timeliness coverage by manual patrol, this can affect the safe operation of RTU in transformer station.And in the use procedure of UPS, at least need every year to carry out a charge and discharge maintenance job to storage battery, manually carry out charge and discharge maintenance work labor intensive material resources.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model proposes a kind of can the magnitude of voltage of storage battery and the operating state of storage battery in real time monitoring uninterrupted power supply, and the remote maintenance device of the uninterrupted power supply of discharge and recharge can be carried out by Remote storage battery.
To achieve these goals, the utility model proposes a kind of remote maintenance device of uninterrupted power supply, described device comprises voltage acquisition circuit, switching signal acquisition circuit and Long-distance Control loop, and described three loops are equipped with the connectivity port be connected with remote terminal unit
Wherein said voltage acquisition circuit comprises voltage acquisition module, three connectivity ports are drawn from described voltage acquisition module, wherein the first connectivity port and the second connectivity port are used for being connected with the both positive and negative polarity of storage battery, and the 3rd connectivity port is used for being connected with the RS-232 serial ports of described remote terminal unit;
Described Long-distance Control loop is by ac power supply, the first relay and the second relay is connected in parallel between described AC power both positive and negative polarity, described first relay and the second relay are connected with the normally opened contact of the 3rd relay and the 4th relay respectively, the normally opened contact of described 3rd relay is also in parallel with the 3rd normally opened contact of the first relay, one end of described 3rd relay connects the negative pole of DC power supply, and its other end is drawn the 4th connectivity port and is used for being connected with the first Remote Control Interface of described remote terminal unit; One end of described 4th relay connects the negative pole of DC power supply, and its other end is drawn the 5th connectivity port and is used for being connected with the second Remote Control Interface of described remote terminal unit; The tenth connectivity port is drawn respectively with the 11 connectivity port for being connected with COM2 interface with the COM1 interface of described remote terminal unit from the positive pole of described DC power supply; Normally-closed contact and described first relay of described second relay are in series, and draw the 8th connectivity port be respectively respectively used to be connected with the negative pole of described AC power and the power cathode of uninterrupted power supply with the 9th connectivity port from the two ends of described first relay second normally opened contact;
Described switching signal acquisition circuit comprises the first normally-closed contact of described first relay, and draw the 6th connectivity port and the 7th connectivity port from the first normally-closed contact of this first relay, it is respectively used to be connected with YX1 interface with the com interface of described remote terminal unit.
Preferably, described first relay and the second relay all adopt A.C. contactor.
Preferably, described 3rd relay and the 4th relay all adopt electromagnetic absorption joint type relay.
The beneficial effect of the program of the present utility model is that the remote maintenance device of above-mentioned uninterrupted power supply can the magnitude of voltage of storage battery and the operating state of storage battery in real time monitoring uninterrupted power supply, and can carry out discharge and recharge action by Remote storage battery.
Accompanying drawing explanation
Fig. 1 shows the theory diagram of the remote maintenance device of the uninterrupted power supply involved by the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
The remote maintenance device of the uninterrupted power supply involved by the utility model comprises voltage acquisition circuit, switching signal acquisition circuit and Long-distance Control loop, and above-mentioned three loops are all connected with remote terminal unit, and the annexation between concrete each loop as shown in Figure 1.
Voltage acquisition circuit: described voltage acquisition circuit comprises voltage acquisition module 2, three connectivity ports are drawn from described voltage acquisition module 2, wherein the first connectivity port A and the second connectivity port B is connected to the both positive and negative polarity of storage battery 3, and the 3rd connectivity port C is connected with the RS-232 serial ports of described RTU4.Described voltage acquisition module 2 is for measuring the magnitude of voltage of described storage battery 3, and this real-time voltage value is sent to described RTU4, operation maintenance personnel can by the magnitude of voltage of storage battery 3 described in dispatch automated system real time monitoring, voltage acquisition module 2 involved by the utility model is common voltage acquisition module, therefore repeats no more concrete voltage collection circuit.
Long-distance Control loop: described Long-distance Control loop is by ac power supply, specifically between the positive pole 220V-L contact and negative pole 220V-N contact of AC power, be connected in parallel the first relay C1 and the second relay C2, what above-mentioned first relay C1 and the second relay C2 adopted is A.C. contactor, described first relay C1 and the second relay C2 connects with normally opened contact YK1-1 and YK2-1 of the 3rd relay YK1 and the 4th relay YK2 respectively, what described 3rd relay YK1 and the 4th relay YK2 adopted is electromagnetic absorption joint type relay, the normally opened contact YK1-1 of described 3rd relay YK1 and the 3rd normally opened contact C1-3 of the first relay C1 is in parallel, one end of described 3rd relay YK1 connects the negative pole of DC power supply, its other end is drawn the 4th connectivity port D and is connected with the first Remote Control Interface YKH1 of described remote terminal unit RTU4, one end of described 4th relay YK2 connects the negative pole of DC power supply, and its other end is drawn the 5th connectivity port E and is connected with the second Remote Control Interface YKH2 of described remote terminal unit RTU4, COM1 interface and the COM2 interface that the tenth connectivity port J and the 11 connectivity port K is connected to described remote terminal unit RTU4 is drawn respectively from the positive pole of described DC power supply, normally-closed contact C2-1 and the described first relay C1 of described second relay C2 are in series, the 8th connectivity port H and the 9th connectivity port I is drawn respectively from the two ends of described first relay C1 second normally opened contact C1-2, wherein said 8th connectivity port H is connected with the negative pole of AC power, described 9th connectivity port I is connected to the power cathode of described UPS, and the positive source of described UPS is connected to the positive pole of AC power.
Switching signal acquisition circuit: described switching signal acquisition circuit comprises the first normally-closed contact C1-1 of described first relay C1, and draw at the 6th from the first normally-closed contact C1-1 of this first relay C1 and meet port F and the 7th connectivity port G, be connected to com interface and the YX1 interface of described RTU4 respectively.The on off state of the first normally-closed contact C1-1 of described first relay C1 reflects the charging and discharging state of storage battery 3, when the first normally-closed contact C1-1 of described first relay C1 is in closure state, shows that described storage battery 3 is in discharge condition; When the first normally-closed contact C1-1 of described first relay C1 is in off-state, show that described storage battery 3 is in charged state.Operation maintenance personnel can by the charging and discharging state of storage battery 3 described in dispatch automated system real time monitoring.
The remote maintenance device of the uninterrupted power supply involved by the utility model in use one co-exists in three kinds of operating states:
The first operating state: described UPS1 is by ac power supply, and storage battery 3 is in floating charge state.In this operating condition, described first relay C1 is charged, described second relay C2 is not charged, now the first normally-closed contact C1-1 of described first relay C1 disconnects, the second normally opened contact C1-2 of described first relay C1 closes, and the 3rd normally opened contact C1-3 of described first relay C1 also closes; The normally-closed contact C2-1 of described second relay C2 closes, and therefore under the first operating state, described UPS1, by mains-supplied, charges for described storage battery 3 simultaneously.
The second operating state: described UPS1 is powered by storage battery 3, namely storage battery 3 is in discharge condition.When needs carry out electric discharge maintenance work to storage battery 3, send electric discharge guidance command by the second Remote Control Interface YKH2 of dispatch automated system to described RTU4, this remote control command makes the normally opened contact YK2-1 of described 4th relay YK2 close, and disconnects again afterwards.When the normally opened contact YK2-1 of described 4th relay YK2 closes, second relay C2 is charged, the normally-closed contact C2-1 of described second relay C2 disconnects, described first relay C1 dead electricity, there is following action in three contacts of described first relay C1: its first normally-closed contact C1-1 closes, and shows that storage battery 3 is in discharge condition; Its second normally opened contact C1-2 disconnects, and makes described UPS1 exchange dead electricity, is powered by storage battery 3; Its 3rd normally opened contact C1-3 disconnects.Disconnect again after normally opened contact YK2-1 due to described 4th relay YK2, make the second relay C2 dead electricity, the normally-closed contact C2-1 of described second relay C2 closes.Because the normally opened contact YK1-1 of described 3rd relay YK1 and the 3rd normally opened contact C1-3 of the first relay C1 is all in off-state, so the first relay C1 is still in power failure state, realize the self-sustaining of the first relay C1.
Described storage battery 3 is in the process of electric discharge, operation maintenance personnel can by the magnitude of voltage of storage battery 3 described in dispatch automated system real time monitoring, the voltage compare threshold value of storage battery 3 is pre-set in dispatch automated system, when the magnitude of voltage of described storage battery 3 is reduced to below above-mentioned voltage compare threshold value, described dispatch automated system sends alarm signal automatically, prompting operation maintenance personnel storage battery 3 has discharged, now the first Remote Control Interface YKH1 of dispatch automated system to described RTU4 sends and recovers Alternating Current Power Supply guidance command, enters the third operating state.The above-mentioned function setting magnitude of voltage of storage battery 3 and voltage compare threshold value being compared and sent alarm signal and all belong to common, does not repeat at this.
The third operating state: described UPS1 is by ac power supply, and storage battery 3 is in floating charge state.After storage battery 3 completes electric discharge maintenance work, sent by the first Remote Control Interface YKH1 of dispatch automated system to described RTU4 and recover Alternating Current Power Supply guidance command, this remote control command makes the normally opened contact YK1-1 of described 3rd relay YK1 close, and disconnects again afterwards.When the normally opened contact YK1-1 of described 3rd relay YK1 closes, the first relay C1 is charged, and following action occurs in three contacts of described first relay C1: its first normally-closed contact C1-1 disconnects, and shows that storage battery 3 is in charged state; Its second normally opened contact C1-2 closes, and make described UPS1 by ac power supply, storage battery 3 proceeds to floating charge state; Its 3rd normally opened contact C1-3 closes, and realizes the self-sustaining of the first relay C1.
Above-mentioned three kinds of cycle of states are carried out, and achieve the magnitude of voltage of storage battery 3 in uninterrupted power supply and the real time monitoring of storage battery 3 operating state, and can carry out charge/discharge action by Remote storage battery 3.
Claims (3)
1. a remote maintenance device for uninterrupted power supply, is characterized in that: described device comprises voltage acquisition circuit, switching signal acquisition circuit and Long-distance Control loop, and described three loops are equipped with the connectivity port be connected with remote terminal unit,
Wherein said voltage acquisition circuit comprises voltage acquisition module, three connectivity ports are drawn from described voltage acquisition module, wherein the first connectivity port and the second connectivity port are used for being connected with the both positive and negative polarity of storage battery, and the 3rd connectivity port is used for being connected with the RS-232 serial ports of described remote terminal unit;
Described Long-distance Control loop is by ac power supply, the first relay and the second relay is connected in parallel between described AC power both positive and negative polarity, described first relay and the second relay are connected with the normally opened contact of the 3rd relay and the 4th relay respectively, the normally opened contact of described 3rd relay is also in parallel with the 3rd normally opened contact of the first relay, one end of described 3rd relay connects the negative pole of DC power supply, and its other end is drawn the 4th connectivity port and is used for being connected with the first Remote Control Interface of described remote terminal unit; One end of described 4th relay connects the negative pole of DC power supply, and its other end is drawn the 5th connectivity port and is used for being connected with the second Remote Control Interface of described remote terminal unit; The tenth connectivity port is drawn respectively with the 11 connectivity port for being connected with COM2 interface with the COM1 interface of described remote terminal unit from the positive pole of described DC power supply; Normally-closed contact and described first relay of described second relay are in series, and draw the 8th connectivity port be respectively respectively used to be connected with the negative pole of described AC power and the power cathode of uninterrupted power supply with the 9th connectivity port from the two ends of described first relay second normally opened contact;
Described switching signal acquisition circuit comprises the first normally-closed contact of described first relay, and draw the 6th connectivity port and the 7th connectivity port from the first normally-closed contact of this first relay, it is respectively used to be connected with YX1 interface with the com interface of described remote terminal unit.
2. the remote maintenance device of uninterrupted power supply according to claim 1, is characterized in that: described first relay and the second relay all adopt A.C. contactor.
3. the remote maintenance device of uninterrupted power supply according to claim 1, is characterized in that: described 3rd relay and the 4th relay all adopt electromagnetic absorption joint type relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190097.7U CN204442021U (en) | 2015-04-01 | 2015-04-01 | A kind of remote maintenance device of uninterrupted power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190097.7U CN204442021U (en) | 2015-04-01 | 2015-04-01 | A kind of remote maintenance device of uninterrupted power supply |
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| CN204442021U true CN204442021U (en) | 2015-07-01 |
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| CN201520190097.7U Expired - Fee Related CN204442021U (en) | 2015-04-01 | 2015-04-01 | A kind of remote maintenance device of uninterrupted power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701994A (en) * | 2015-04-01 | 2015-06-10 | 国家电网公司 | Remote maintenance device of uninterruptible power supply |
| CN107171402A (en) * | 2017-07-08 | 2017-09-15 | 江叶树 | Heat supply network heat metering terminal standby storage battery remote maintenance system |
-
2015
- 2015-04-01 CN CN201520190097.7U patent/CN204442021U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701994A (en) * | 2015-04-01 | 2015-06-10 | 国家电网公司 | Remote maintenance device of uninterruptible power supply |
| CN107171402A (en) * | 2017-07-08 | 2017-09-15 | 江叶树 | Heat supply network heat metering terminal standby storage battery remote maintenance system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20180401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |