CN204731272U - Current source application system during the remote measurement of many covers distribution power automation terminal detects - Google Patents
Current source application system during the remote measurement of many covers distribution power automation terminal detects Download PDFInfo
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- CN204731272U CN204731272U CN201520332219.1U CN201520332219U CN204731272U CN 204731272 U CN204731272 U CN 204731272U CN 201520332219 U CN201520332219 U CN 201520332219U CN 204731272 U CN204731272 U CN 204731272U
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- 230000009286 beneficial effect Effects 0.000 abstract description 3
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Abstract
The utility model discloses current source application system in a kind of many cover distribution power automation terminal remote measurement detections, its beneficial effect is: the first, structure is simple, easy to operate, the access only needing primary connection can complete normalized current source and fault current source detects, without the need to interrupting testing process.Solve the low problem of efficiency that distribution power automation terminal normalized current source and fault current source adopt the mode of discrete detection to cause; The second, this application system can detect many locking terminals simultaneously, and the resource utilizations such as normalized current source and fault current source are high, solves the problem that resource utilization that employing detects one to one is low; Three, this application system easily extensible, for the batch detection of distribution power automation terminal provides reliable method.
Description
Technical field
The utility model relates to current source application system in a kind of many cover distribution power automation terminal remote measurement detections.
Background technology
From DL/T 721-2013 distribution automation remote terminal, detect distribution power automation terminal and can not only gather normalized current, but also fault current input capability should be possessed.
In existing distribution power automation terminal remote measurement detects, the applying in normalized current source and fault current source needs independently to carry out, and when carrying out both change detection, needs rewiring, have a strong impact on detection efficiency, the effect that primary connection can realize fully-automated synthesis cannot be realized.And can only for the detection of a set of distribution power automation terminal, namely the corresponding a set of fault current source of a locking terminal and normalized current source (detecting one to one), fully cannot share resource, add testing cost.
Summary of the invention
For the problems referred to above, current source application system during the utility model provides the remote measurement of a kind of many cover distribution power automation terminals to detect, solve the low problem of efficiency that distribution power automation terminal normalized current source and fault current source adopt the mode of discrete detection to cause, further, the problem that resource utilization that employing detects one to one is low is solved.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
Current source application system during the remote measurement of many covers distribution power automation terminal detects, is characterized in that, comprising:
Normalized current source module: generation amplitude, frequency, the ac current signal that phase place is all adjustable;
Fault current source module: simulate the fault current producing [2In, lasting output], [10In, output in 10 seconds], [20In, output in 1 second];
Control module: the switching of control linkage switch;
The three-phase current of described normalized current source module is connected respectively by the current acquisition terminal of connecting valve phase corresponding to measured terminal;
Described fault current source module gathers terminal series-shunt by connecting valve with the three-phase current of measured terminal and is connected;
Control module control linkage switch carries out normalized current remote measurement detection or fault current remote measurement detects.
Wherein, quantity >=1 of described measured terminal is overlapped, and control module passes through connection or the disconnection of connecting valve control criterion current source module, fault current source module and each cover measured terminal.
The beneficial effects of the utility model are:
The first, structure is simple, and easy to operate, the access only needing primary connection can complete normalized current source and fault current source detects, without the need to interrupting testing process.Solve the low problem of efficiency that distribution power automation terminal normalized current source and fault current source adopt the mode of discrete detection to cause;
The second, this application system can detect many locking terminals simultaneously, and the resource utilizations such as normalized current source and fault current source are high, solves the problem that resource utilization that employing detects one to one is low;
Three, this application system easily extensible, for the batch detection of distribution power automation terminal provides reliable method.
Accompanying drawing explanation
Fig. 1 is the location drawing of normalized current source module relay or contactor when putting on terminal 1;
Fig. 2 is the location drawing of normalized current source module relay or contactor when putting on terminal 2;
Fig. 3 is the location drawing of fault current source module relay or contactor when putting on terminal 1;
Fig. 4 is the location drawing of fault current source module relay or contactor when putting on terminal 2.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical solutions of the utility model are described in further detail, to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
Current source application system during the remote measurement of many covers distribution power automation terminal detects, comprising:
Normalized current source module: generation amplitude, frequency, the ac current signal that phase place is all adjustable, when distribution power automation terminal carries out normalized current remote measurement detection, described normalized current source module outputting standard electric current;
Fault current source module: simulation produces [2In, lasting output], the fault current of [20In, output in 1 second], when distribution power automation terminal carries out fault current remote measurement detection, described fault current source module exports fault current, and wherein In is (specified) working current;
Control module: the switching of control linkage switch, the most frequently used connecting valve has relay, contactor etc., connecting valves all in system switches according to the logic control of control module, and the switching of control module control linkage switch belongs to prior art, does not repeat them here.
Wherein, the three-phase current of described normalized current source module is connected respectively by the current acquisition terminal of connecting valve phase corresponding to measured terminal, namely the A phase current of normalized current source module gathers terminal by connecting valve with the A phase current of measured terminal and is connected, the B phase current of normalized current source module gathers terminal by connecting valve with the B phase current of measured terminal and is connected, and the C phase current of normalized current source module gathers terminal by connecting valve with the C phase current of measured terminal and is connected.For 2 cover measured terminals in Fig. 1, wherein, the A phase current IA of normalized current source module gathers terminal by the A phase current that connecting valve J1, J2, J3, J4 and J13 and 2 overlap measured terminal and is connected, and the annexation of B phase current IB, C phase current IC of normalized current source module is shown in Fig. 1.
Described fault current source module gathers terminal series-shunt by connecting valve with the three-phase current of measured terminal and is connected, and namely fault current source module is gathered together with terminal series-shunt with A, B, C phase current of measured terminal by connecting valve.In Fig. 1, fault current source module overlaps measured terminal by connecting valve J1, J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12 and 2 and is connected.
Control module (not shown) control linkage switch carries out normalized current remote measurement detection or fault current remote measurement detects.
Wherein, quantity >=1 of described measured terminal is overlapped (can be many covers), and control module passes through connection or the disconnection of connecting valve control criterion current source module, fault current source module and each cover measured terminal.
Current source applying method during the remote measurement of many covers distribution power automation terminal detects, when carrying out normalized current remote measurement and detecting, control module control linkage switch makes the three-phase current of normalized current source module put on the current acquisition terminal of the corresponding phase of at least 1 cover measured terminal respectively.
When carrying out fault current remote measurement and detecting, the three-phase current that control module control linkage switch makes the current-series of fault current source module put at least 1 cover measured terminal gathers terminal.
Corresponding, preferably, described connecting valve is relay or contactor.
Below in conjunction with figure 1 ?4 to be described in detail, wherein, only enumerate two cover distribution power automation terminals, and suppose that often overlapping distribution power automation terminal possesses n group AC current collecting coil, normalized current source and the remote measurement of fault current source of the above distribution power automation terminal of two covers detect and can in like manner expand.Wherein, connecting valve J1, J5, J9, J3, J4, J7, J8, J11, J12 is used for the switching of normalized current source module and fault current source module; J2, J6, J10, J13 are used for the switching of terminal 1 and terminal 2; J14, J15, J16 are used for fault current source open-circuit-protection.
Normalized current source puts on the method for measured terminal:
When normalized current source module puts on terminal 1, as shown in Figure 1, current path is as follows for the location drawing of connecting valve:
IA → J1 sets aside → J2 upper group → IA1 → J3 upper group → J13 upper group → IN
IB → J5 sets aside → J6 upper group → IB1 → J7 upper group → J13 upper group → IN
IC → J9 sets aside → J10 upper group → IC1 → J11 upper group → J13 upper group → IN
When normalized current source module puts on terminal 2, as shown in Figure 2, current path is as follows for the location drawing of connecting valve:
IA → J1 sets aside → and J2 sets aside → IA2 → J4 above dials → and J13 sets aside → IN
IB → J5 sets aside → 6 to set aside → IB2 → J8 above dials → J13 sets aside → IN
IC → J9 sets aside → 10 to set aside → IC2 → J12 above dials → J13 sets aside → IN
Fault current source puts on the method for measured terminal:
When fault current source module puts on terminal 1, as shown in Figure 3, current path is as follows for the location drawing of connecting valve:
IG → IG1 → J1 is upper to be dialled → and J2 is upper group → and IA1 → J3 sets aside →
IG2 → J5 is upper to be dialled → and J6 is upper group → and IB1 → J7 sets aside →
IG3 → J9 upper group → J10 upper group → IC1 → J11 sets aside → IGN
When fault current source module puts on terminal 2, as shown in Figure 4, current path is as follows for the location drawing of connecting valve:
IG → IG1 → J1 is upper to be dialled → and J2 sets aside → and IA2 → J4 sets aside →
IG2 → J5 is upper to be dialled → and J6 sets aside → and IB2 → J8 sets aside →
IG3 → J9 is upper to be dialled → and J10 sets aside → and IC2 → J12 sets aside → IGN
Above-mentioned switch upper group or set aside and control by control module, can be put on by the switch logic of relay or contactor and overlap measured terminal more.
The beneficial effects of the utility model are:
The first, structure is simple, and easy to operate, the access only needing primary connection can complete normalized current source and fault current source detects, without the need to interrupting testing process.Solve the low problem of efficiency that distribution power automation terminal normalized current source and fault current source adopt the mode of discrete detection to cause;
The second, this application system can detect many locking terminals simultaneously, and the resource utilizations such as normalized current source and fault current source are high, solves the problem that resource utilization that employing detects one to one is low;
Three, this application system easily extensible, for the batch detection of distribution power automation terminal provides reliable method.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. current source application system in many cover distribution power automation terminal remote measurement detections, is characterized in that, comprising:
Normalized current source module: generation amplitude, frequency, the ac current signal that phase place is all adjustable;
Fault current source module: simulate the fault current producing [2In, lasting output], [10In, output in 10 seconds], [20In, output in 1 second];
Control module: the switching of control linkage switch;
The three-phase current of described normalized current source module is connected respectively by the current acquisition terminal of connecting valve phase corresponding to measured terminal;
Described fault current source module gathers terminal series-shunt by connecting valve with the three-phase current of measured terminal and is connected;
Control module control linkage switch carries out normalized current remote measurement detection or fault current remote measurement detects.
2. current source application system in many cover distribution power automation terminal remote measurement detections according to claim 1, it is characterized in that, quantity >=1 of described measured terminal is overlapped, and control module passes through connection or the disconnection of connecting valve control criterion current source module, fault current source module and each cover measured terminal.
3. current source application system in many cover distribution power automation terminal remote measurement detections according to claim 1, it is characterized in that, described connecting valve is relay.
4. current source application system in many cover distribution power automation terminal remote measurement detections according to claim 1, it is characterized in that, described connecting valve is contactor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897930A (en) * | 2015-05-21 | 2015-09-09 | 国家电网公司 | Current source applying system in multi-set power distribution automation terminal remote measurement and detection and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897930A (en) * | 2015-05-21 | 2015-09-09 | 国家电网公司 | Current source applying system in multi-set power distribution automation terminal remote measurement and detection and method thereof |
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