CN209401205U - High-supply high-count fault simulation device - Google Patents
High-supply high-count fault simulation device Download PDFInfo
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- CN209401205U CN209401205U CN201821797319.1U CN201821797319U CN209401205U CN 209401205 U CN209401205 U CN 209401205U CN 201821797319 U CN201821797319 U CN 201821797319U CN 209401205 U CN209401205 U CN 209401205U
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- 238000004088 simulation Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 73
- 238000000819 phase cycle Methods 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 3
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Abstract
The utility model provides a high-supply high-count failure simulation device relates to high-supply high-count failure simulation technical field, and this high-supply high-count failure simulation device includes the load unit, isolation vary voltage unit, the control unit that constitute by a plurality of loads and the signal acquisition unit that comprises three-phase three-wire ammeter, first relay group and voltage transformer. The control unit is used for controlling the on and off of the relays in the first relay group to disconnect any phase voltage acquisition end of the three-phase three-wire electric meter from the voltage transformer and control the number of loads which work based on commercial power in the multiple loads to simulate an open-phase fault in high-supply high-count measurement. Through the arrangement, the faults existing in the measurement work of the high-supply and high-count meter can be effectively simulated, so that the measurement personnel can analyze and process the faults.
Description
Technical field
The utility model relates to massive quantity power supply and measurement fault simulation technical fields, in particular to a kind of massive quantity power supply and measurement failure
Simulator.
Background technique
In electric-power metering work, can there is a problem of some, be easy to cause metering device to break down, thus to electric energy
Calculating have an impact.Wherein, common failure may include, but be not limited to voltage negative phase sequence, electric current reversed polarity, break it is equal.
Through inventor the study found that in actual measurement work, since failure of the survey crew to metering device is not yet done
There are problems that inconvenience when knowing and survey crew being caused to be analyzed and processed failure, therefore it provides one kind can be to height
The scheme that failure present in measurement work for height meter is simulated is a technical problem to be solved urgently.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of massive quantity power supply and measurement failure simulation devices, with effectively right
Failure present in the measurement work of massive quantity power supply and measurement is simulated, in order to which survey crew is analyzed and processed failure
To achieve the above object, the utility model embodiment adopts the following technical scheme that
A kind of massive quantity power supply and measurement failure simulation device, comprising:
Load unit, the load unit are made of multiple loads；
Voltage transformation unit is isolated, which includes isolating transformer and step-down transformer, the isolating transformer
The electrical connection of input terminal and city, output end connect with the input terminal of the step-down transformer, the output end of the step-down transformer
It is connect with the input terminal of the load unit；
Signal acquisition unit, the signal acquisition unit include phase three-wire three ammeter, the first relay group and voltage transformer,
Three phase voltage collection terminals of the phase three-wire three ammeter pass through each relay of the first relay group and the electricity respectively
Press mutual inductor connection；
Control unit, the output end of the control unit respectively with the control terminal of the load unit, first relay
The control terminal of each relay in group connects；
Wherein, described control unit is used for conducting and pass by controlling each relay in the first relay group
It is disconnected, to disconnect the connection of any one phase voltage collection terminal and the voltage transformer of the phase three-wire three ammeter, and control
The quantity of the load to be worked in the multiple load based on alternating current, to simulate the open phase fault in massive quantity power supply and measurement measurement.
In the utility model embodiment preferably selects, the first relay group is made of 18 relays, this 18
A relay is divided into two groups, and each group relay includes three relay module, each relay module includes three relays
Device；
Wherein, three input terminals of three relay module of the first group relay respectively as the first relay group
It is connect with three voltage output ends of the voltage transformer, three relay module of the second group relay are respectively as described
Three output ends of the first relay group are connect with three phase voltage collection terminals of the phase three-wire three ammeter, and described first group
Three relay module of relay are connected respectively with three relay module of second group relay.
In the utility model embodiment preferably selects, each group relay include the first relay module, second after
Electrical appliance module and third relay module, first relay module, the second relay module and third relay mould
Each relay module includes the first relay, the second relay, third relay in block；
The second relay in the first relay and the second group relay of the first relay module in first group relay
Device module the first relay connection, the second relay and the first relay module in the second group relay the second relay
Connection, third relay are connect with the third relay of the third relay module in the second group relay；
The first relay in the first relay and the second group relay of the second relay module in first group relay
Device module the first relay connection, the second relay and the second relay module in the second group relay the second relay
Connection, third relay are connect with the first relay of the third relay module in the second group relay；
The second relay in the first relay and the second group relay of third relay module in first group relay
Device module third relay connection, the second relay and the third relay module in the second group relay the second relay
Connection, third relay are connect with the third relay of the first relay module in the second group relay；
Wherein, described control unit is also used to control the conducting and shutdown of each relay in the first relay group,
It is corresponding with three voltage output ends of the voltage transformer to control three phase voltage collection terminals of the phase three-wire three ammeter
Connection relationship, to simulate the voltage negative phase sequence failure in massive quantity power supply and measurement measurement.
In the utility model embodiment preferably selects, signal acquisition unit further includes that the second relay group and electric current are mutual
Sensor；
Three phase current collection terminals of the phase three-wire three ammeter pass through each relay of the second relay group respectively
It is connect with the current transformer；
The output end of described control unit is connect with the control terminal of each relay in the second relay group respectively, with
The three phase current collection terminals and the Current Mutual Inductance of the phase three-wire three ammeter are controlled with shutdown by the conducting of each relay
Three current output terminals of device are correspondingly connected with relationship, to simulate the electric current reversed polarity failure in massive quantity power supply and measurement measurement.
In the utility model embodiment preferably selects, the second relay group is made of 18 relays, this 18
A relay is divided into two groups, respectively third group and the 4th group, and each group relay includes three relay module, and respectively the
Four relay module, the 5th relay module and the 6th relay module, each relay module include three relays, point
It Wei not the 4th relay, the 5th relay and the 6th relay；
Wherein, three input terminals of three relay module of third group relay respectively as the second relay group
It is connect with three current output terminals of the current transformer, three relay module of the 4th group relay are respectively as described
Three output ends of the second relay group are connect with three phase current collection terminals of the phase three-wire three ammeter, and the third group
Three relay module of relay and three relay module of the 4th group relay are connected respectively.
In the utility model embodiment preferably selects, in the third group relay and the 4th group relay
Each group relay includes the 4th relay module, the 5th relay module and the 6th relay module, in the 4th relay
Each relay module includes the 4th relay, the 5th relay in device module, the 5th relay module and the 6th relay module
Device and the 6th relay；
The 5th relay in the 4th relay and the 4th group relay of the 4th relay module in third group relay
Device module the 4th relay connection, the 5th relay and the 4th relay module in the 4th group relay the 5th relay
Connection, the 6th relay are connect with the 6th relay of the 6th relay module in the 4th group relay；
The 4th relay in the 4th relay and the 4th group relay of the 5th relay module in third group relay
Device module the 4th relay connection, the 5th relay and the 5th relay module in the 4th group relay the 5th relay
Connection, the 6th relay are connect with the 4th relay of the 6th relay module in the 4th group relay；
The 5th relay in the 4th relay and the 4th group relay of the 6th relay module in third group relay
Device module the 6th relay connection, the 5th relay and the 6th relay module in the 4th group relay the 5th relay
Connection, the 6th relay are connect with the 6th relay of the 4th relay module in the 4th group relay.
In the utility model embodiment preferably selects, the model of the isolating transformer and step-down transformer
JssG-7KVA, the model DSSD331 of the phase three-wire three ammeter, the model JDG4 of the voltage transformer, the relay
The model AHN22324N of device, the model LMZJ1-0.5 of the current transformer.
In the utility model embodiment preferably selects, the signal acquisition unit further includes special transformer acquisition terminal, should
The input terminal of special transformer acquisition terminal is connect with the output end of the phase three-wire three ammeter, output end and described control unit connect,
The model TLY2130 of the special transformer acquisition terminal.
In the utility model embodiment preferably selects, the load unit further includes breaker, and the one of the breaker
The input terminal as the load unit is held to connect with the output end of the step-down transformer, the other end and the multiple load divide
It does not connect, the model A9F18363-3P of the breaker.
The utility model embodiment additionally provides a kind of massive quantity power supply and measurement failure simulation device, comprising:
Load unit, the load unit are made of multiple loads；
Voltage transformation unit is isolated, which includes isolating transformer and step-down transformer, the isolating transformer
The electrical connection of input terminal and the city 400V, output end connect with the input terminal of the step-down transformer, the step-down transformer it is defeated
Outlet is connect with the input terminal of the load unit；
Signal acquisition unit, the signal acquisition unit have phase three-wire three ammeter, the first relay group and voltage transformer,
Three phase voltage collection terminals of the phase three-wire three ammeter pass through each relay of the first relay group and the electricity respectively
Press mutual inductor connection；
Control unit, the output end of the control unit respectively with the control terminal of the load unit, first relay
The control terminal of each relay in group connects；
Wherein, described control unit is used for conducting and pass by controlling each relay in the first relay group
It is disconnected, to disconnect the connection of any one phase line input terminal and voltage transformer of the phase three-wire three ammeter, and for controlling institute
The quantity of the load to work in multiple loads based on alternating current is stated, to simulate the open phase fault in massive quantity power supply and measurement measurement.
Massive quantity power supply and measurement failure simulation device provided by the utility model, described control unit are used for through control described first
The conducting and shutdown of each relay in relay group, to disconnect any one phase voltage collection terminal of the phase three-wire three ammeter
With the connection of the voltage transformer, and the quantity of the load to work in the multiple load based on alternating current is controlled, with mould
Open phase fault in quasi- massive quantity power supply and measurement measurement.
Further, described control unit is also used to the conducting by controlling each relay in the first relay group
With shutdown, to control three voltage output ends of three phase voltage collection terminals of the phase three-wire three ammeter Yu the voltage transformer
Be correspondingly connected with relationship, with simulate massive quantity power supply and measurement measurement in voltage negative phase sequence failure.Described control unit is also used to pass through control
The conducting and shutdown of each relay in the second relay group are made, to control three phase currents of the phase three-wire three ammeter
Three current output terminals of collection terminal and the current transformer are correspondingly connected with relationship, to simulate the electricity in massive quantity power supply and measurement measurement
Flow reversed polarity failure.By above-mentioned setting, can effectively failure present in the measurement work to massive quantity power supply and measurement simulate,
In order to which survey crew is analyzed and processed failure, to avoid in the prior art since survey crew is to the failure of metering device
There are problems that inconvenience when being unfamiliar with and survey crew being caused to be analyzed and processed failure.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
Fig. 1 is the structural block diagram of massive quantity power supply and measurement failure simulation device provided by the embodiment of the utility model.
Fig. 2 is the structural block diagram of load unit provided by the embodiment of the utility model.
Fig. 3 is the application schematic diagram of massive quantity power supply and measurement failure simulation device provided by the embodiment of the utility model.
Fig. 4 is the electrical schematic diagram of the first relay group provided by the embodiment of the utility model.
Icon: 10- massive quantity power supply and measurement failure simulation device；100- load unit；110- load；120- breaker；200- every
From voltage transformation unit；210- isolating transformer；220- step-down transformer；300- signal acquisition unit；310- phase three-wire three ammeter；
320- the first relay group；330- voltage transformer；340- the second relay group；350- current transformer；360- specially becomes acquisition
Terminal；400- control unit.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Usually retouched in attached drawing here
The component of the utility model embodiment stated and shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In the utility model
In description, term " first ", " second ", " third " etc. are only used for distinguishing description, and should not be understood as only or imply relatively heavy
The property wanted.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " company
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this with concrete condition
Concrete meaning in type.
As shown in Figure 1, the utility model embodiment provides a kind of massive quantity power supply and measurement failure simulation device 10, massive quantity power supply and measurement event
Barrier simulator 10 may include load unit 100, isolation voltage transformation unit 200, signal acquisition unit 300 and control unit 400.
In detail, the load unit 100 can be made of multiple loads 110.The isolation voltage transformation unit 200 include every
From transformer 210 and step-down transformer 220, the input terminal of the isolating transformer 210 is electrically connected with city, output end and the drop
The input terminal of pressure transformer 220 connects, and the input terminal of the output end of the step-down transformer 220 and the load unit 100 connects
It connects.The signal acquisition unit 300 includes phase three-wire three ammeter 310, the first relay group 320 and voltage transformer 330, described
Three phase voltage collection terminals of phase three-wire three ammeter 310 respectively by each relay of the first relay group 320 with it is described
Voltage transformer 330 connects.The output end of described control unit 400 respectively with the control terminal of the load unit 100, described
The control terminal of each relay in one relay group 320 connects.
Wherein, described control unit 400 is used to control conducting and the pass of each relay in the first relay group 320
It is disconnected, to disconnect any one phase voltage collection terminal of the phase three-wire three ammeter 310 and the connection of the voltage transformer 330,
And the quantity of the load 110 to work in the multiple load 110 based on alternating current is controlled, to simulate in massive quantity power supply and measurement measurement
Open phase fault.
By above-mentioned setting, can effectively failure present in the measurement work to massive quantity power supply and measurement simulate, so as to
Failure is analyzed and processed in survey crew, there is high practical value.
Further, it is contemplated that described control unit 400, which needs to control in the multiple load 110, carries out work based on alternating current
The quantity of the load 110 of work, thus, in the present embodiment, the load unit 100 can also include multiple switch device, with
Whether corresponding load 110 is powered based on the signal control alternating current that described control unit 400 exports, to control the load
Whether 110 work.
Also, to realize the current protection to the multiple load 110, in the present embodiment, the load unit 100 is also
It may include breaker 120.
In detail, input terminal and the step-down transformer of the one end of the breaker 120 as the load unit 100
220 output end connects, the other end is connect with the multiple load 110.
Optionally, the specific type of the load 110 and the breaker 120 is unrestricted, can be according to practical application
Situation is configured, for example, the load 110 can be resistance, the model of the breaker 120 can be A9F18363-3P.
Optionally, the specific type of the isolating transformer 210 and step-down transformer 220 is unrestricted, can be according to reality
Border applicable cases are configured, for example, the type of the isolating transformer 210 and step-down transformer 220 is either identical,
It is also possible to different.In the present embodiment, the isolating transformer 210 is identical with the type of step-down transformer 220, and model
It can be JssG-7KVA.
Also, the specific voltage swing for the alternating current connecting with the isolating transformer 210 is unrestricted, can be according to reality
Applicable cases are configured, as long as meeting high for situation in massive quantity power supply and measurement measurement.In the present embodiment, the voltage of alternating current
It can be 400V.
Optionally, the concrete model of the phase three-wire three ammeter 310 and voltage transformer 330 is unrestricted, can basis
Practical situations are configured.In the present embodiment, the model of the phase three-wire three ammeter 310 can be DSSD331, described
The model of voltage transformer 330 can be JDG4.
Optionally, the quantity for the relay that the first relay group 320 includes is unrestricted, can be according to practical application
Demand is configured.In the present embodiment, in conjunction with Fig. 4, the first relay group 320 can be made of 18 relays.It should
18 relays can be divided into two groups, respectively first group and second group.Each group relay may include three relay moulds
Block, each relay module may include three relays in three relay module.
In detail, three respectively as the first relay group 320 of three relay module of the first group relay
Input terminal is connect with three voltage output ends of the voltage transformer 330, three relay module point of the second group relay
Three phase voltage collection terminals not as three output ends of the first relay group 320 and the phase three-wire three ammeter 310
Connection, and three relay module of first group relay and three relay module of second group relay are distinguished
It is correspondingly connected with.
Wherein, each group relay includes the first relay module, the second relay module and third relay module,
In first relay module, the second relay module and third relay module each relay module include first after
Electric appliance, the second relay, third relay.
The second relay in the first relay and the second group relay of the first relay module in first group relay
Device module the first relay connection, the second relay and the first relay module in the second group relay the second relay
Connection, third relay are connect with the third relay of the third relay module in the second group relay.First group relay
In the second relay module the first relay and the second group relay in the first relay module the first relay connect
It connects, the second relay is connect with the second relay of the second relay module in the second group relay, third relay and
First relay of the third relay module in two group relays connects.Third relay module in first group relay
First relay connect with the third relay of the second relay module in the second group relay, the second relay and second group
The first relay in the second relay connection of third relay module in relay, third relay and the second group relay
The third relay of device module connects.
By above-mentioned setting, the control terminal of each relay in the first relay group 320 is connect with described control unit 400
Afterwards, described control unit 400 is also used to control the conducting and shutdown of each relay in the first relay group 320, with control
Make pair of three voltage output ends of 310 3 phase voltage collection terminals of the phase three-wire three ammeter and the voltage transformer 330
Connection relationship is answered, to simulate the voltage negative phase sequence failure in massive quantity power supply and measurement measurement.
For example, in one case, the second relay of the first relay module in the first group relay and second group
The second relay connection of the first relay module in relay, the second relay of the second relay module and second group after
The connection of the second relay, the second relay of third relay module and the second group of relay of the second relay module in electric appliance
Second relay of the third relay module in device connects.When needing to carry out voltage negative phase sequence fault simulation, first group after
Second relay of the second relay module in the second relay and the second group relay of the first relay module in electric appliance
Device connection, the second relay module the second relay and the second group relay in third relay module the second relay
Connection, third relay module the second relay and the second group relay in the first relay module the second relay company
It connects.
It further, is the simulation for realizing the electric current reversed polarity failure in massive quantity power supply and measurement measurement, it is in the present embodiment, described
Signal acquisition unit 300 can also include the second relay group 340 and current transformer 350.
Wherein, three phase current collection terminals of the phase three-wire three ammeter 310 pass through the second relay group 340 respectively
Each relay connect with the current transformer 350；
Optionally, the quantity for the relay that the second relay group 340 includes is unrestricted, can be according to practical application
Demand is configured.In the present embodiment, the second relay group 340 can be made of 18 relays.18 relays
Device can be divided into two groups, respectively third group and the 4th group, and each group relay includes three relay module, and the respectively the 4th
Relay module, the 5th relay module and the 6th relay module, each relay module include three relays, respectively
For the 4th relay, the 5th relay and the 6th relay.
In detail, three respectively as the second relay group 340 of three relay module of third group relay
Input terminal is connect with three current output terminals of the current transformer 350, three relay module point of the 4th group relay
Three phase current collection terminals not as three output ends of the second relay group 340 and the phase three-wire three ammeter 310
Connection, and three relay module of the third group relay and three relay module of the 4th group relay are distinguished
It is correspondingly connected with.
Wherein, each group relay includes the 4th relay in the third group relay and the 4th group relay
Module, the 5th relay module and the 6th relay module, in the 4th relay module, the 5th relay module and the 6th
Each relay module includes the 4th relay, the 5th relay and the 6th relay in relay module.Third group relay
In the 4th relay module the 4th relay and the 5th relay module in the 4th group relay the 4th relay connect
It connects, the 5th relay is connect with the 5th relay of the 4th relay module in the 4th group relay, the 6th relay and
6th relay of the 6th relay module in four group relays connects.The 5th relay module in third group relay
4th relay connect with the 4th relay of the 4th relay module in the 4th group relay, the 5th relay and the 4th group
The 6th relay in the 5th relay connection of the 5th relay module in relay, the 6th relay and the 4th group relay
4th relay of device module connects.The 4th relay and the 4th group of relay of the 6th relay module in third group relay
The 6th relay mould in the 6th relay connection of the 5th relay module in device, the 5th relay and the 4th group relay
The 5th relay connection of block, the 6th relay and the 4th relay module in the 4th group relay the 6th relay company
It connects.
By above-mentioned setting, the control terminal of each relay in the second relay group 340 is connect with described control unit 400
Afterwards, described control unit 400 is also used to control the conducting and shutdown of each relay in the second relay group 340, with control
Make pair of three current output terminals of 310 3 phase current collection terminals of the phase three-wire three ammeter and the current transformer 350
Connection relationship is answered, to simulate the electric current reversed polarity failure in massive quantity power supply and measurement measurement.
Optionally, the concrete model of the relay is unrestricted, can be configured according to practical situations.At this
In embodiment, the model of the relay can be AHN22324N.
Further, the signal acquisition unit 300 further includes special transformer acquisition terminal 360, the special transformer acquisition terminal 360
Input terminal is connect with the output end of the phase three-wire three ammeter 310, output end and described control unit 400 connect.
Optionally, the specific type of the special transformer acquisition terminal 360 is unlimited, as long as the phase three-wire three can be read
The Data Concurrent of ammeter 310 gives described control unit 400.In the present embodiment, the special transformer acquisition terminal 360 is woods
The foreign negative control management terminal of TLY2130 type.
Optionally, 400 concrete type of described control unit is unrestricted, can be configured according to practical situations,
In the present embodiment, described control unit 400 can be main control computer.
In conclusion massive quantity power supply and measurement failure simulation device 10 provided by the utility model, described control unit 400 is for controlling
The conducting and shutdown of each relay in the first relay group 320 are made, to disconnect any of the phase three-wire three ammeter 310
The connection of one phase voltage collection terminal and the voltage transformer 330, and control and carried out in the multiple load 110 based on alternating current
The quantity of the load 110 of work, to simulate the open phase fault in massive quantity power supply and measurement measurement.
Further, described control unit 400 is also used to control leading for each relay in the first relay group 320
Logical and shutdown, to control three electricity of 310 3 phase voltage collection terminals of the phase three-wire three ammeter Yu the voltage transformer 330
Pressure output end is correspondingly connected with relationship, to simulate the voltage negative phase sequence failure in massive quantity power supply and measurement measurement.Described control unit 400 is also
For controlling the conducting and shutdown of each relay in the second relay group 340, to control the phase three-wire three ammeter 310
Three phase current collection terminals and three current output terminals of the current transformer 350 be correspondingly connected with relationship, to simulate height
For the electric current reversed polarity failure in high meter measurement.By above-mentioned setting, can effectively deposit in the measurement work to massive quantity power supply and measurement
Failure simulated, in order to which survey crew is analyzed and processed failure, to avoid in the prior art due to measure people
Member is unfamiliar with the failure of metering device and there are problems that inconvenience when survey crew being caused to be analyzed and processed failure.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of massive quantity power supply and measurement failure simulation device characterized by comprising
Load unit, the load unit are made of multiple loads；
Voltage transformation unit is isolated, which includes isolating transformer and step-down transformer, the isolating transformer it is defeated
The electrical connection of the city Ru Duanyu, output end are connect with the input terminal of the step-down transformer, the output end of the step-down transformer and institute
State the input terminal connection of load unit；
Signal acquisition unit, the signal acquisition unit include phase three-wire three ammeter, the first relay group and voltage transformer, described
Three phase voltage collection terminals of phase three-wire three ammeter are mutual by each relay and the voltage of the first relay group respectively
Sensor connection；
Control unit, the output end of the control unit is respectively and in the control terminal of the load unit, the first relay group
Each relay control terminal connection；
Wherein, described control unit is used for conducting and shutdown by controlling each relay in the first relay group, with
The connection of any one phase voltage collection terminal and the voltage transformer of the phase three-wire three ammeter is disconnected, and is controlled described more
The quantity of the load to be worked in a load based on alternating current, to simulate the open phase fault in massive quantity power supply and measurement measurement.
2. massive quantity power supply and measurement failure simulation device as described in claim 1, which is characterized in that the first relay group is by 18
Relay composition, 18 relays are divided into two groups, and each group relay includes three relay module, each relay mould
Block includes three relays；
Wherein, three relay module of the first group relay are respectively as three input terminals of the first relay group and institute
Three voltage output ends connection of voltage transformer is stated, three relay module of the second group relay are respectively as described first
Three output ends of relay group are connect with three phase voltage collection terminals of the phase three-wire three ammeter, and first group of relay
Three relay module of device are connected respectively with three relay module of second group relay.
3. massive quantity power supply and measurement failure simulation device as claimed in claim 2, which is characterized in that each group relay include first after
Electrical appliance module, the second relay module and third relay module, first relay module, the second relay module with
And each relay module includes the first relay, the second relay, third relay in third relay module；
The second relay mould in the first relay and the second group relay of the first relay module in first group relay
The first relay connection of block, the second relay and the first relay module in the second group relay the second relay company
It connects, third relay is connect with the third relay of the third relay module in the second group relay；
The first relay mould in the first relay and the second group relay of the second relay module in first group relay
The first relay connection of block, the second relay and the second relay module in the second group relay the second relay company
It connects, third relay is connect with the first relay of the third relay module in the second group relay；
The second relay mould in the first relay and the second group relay of third relay module in first group relay
The third relay connection of block, the second relay and the third relay module in the second group relay the second relay company
It connects, third relay is connect with the third relay of the first relay module in the second group relay；
Wherein, described control unit is also used to control the conducting and shutdown of each relay in the first relay group, with control
Make being correspondingly connected with for three phase voltage collection terminals of the phase three-wire three ammeter and three voltage output ends of the voltage transformer
Relationship, to simulate the voltage negative phase sequence failure in massive quantity power supply and measurement measurement.
4. massive quantity power supply and measurement failure simulation device as described in any one of claims 1-3, which is characterized in that signal acquisition unit is also
Including the second relay group and current transformer；
Three phase current collection terminals of the phase three-wire three ammeter each relay by the second relay group and institute respectively
State current transformer connection；
The output end of described control unit is connect with the control terminal of each relay in the second relay group respectively, to pass through
The conducting of each relay controls the three phase current collection terminals and the current transformer of the phase three-wire three ammeter with shutdown
Three current output terminals are correspondingly connected with relationship, to simulate the electric current reversed polarity failure in massive quantity power supply and measurement measurement.
5. massive quantity power supply and measurement failure simulation device as claimed in claim 4, which is characterized in that the second relay group is by 18
Relay composition, 18 relays are divided into two groups, respectively third group and the 4th group, and each group relay includes three relays
Device module, respectively the 4th relay module, the 5th relay module and the 6th relay module, each relay module packet
Include three relays, respectively the 4th relay, the 5th relay and the 6th relay；
Wherein, three relay module of third group relay are respectively as three input terminals of the second relay group and institute
Three current output terminals connection of current transformer is stated, three relay module of the 4th group relay are respectively as described second
Three output ends of relay group are connect with three phase current collection terminals of the phase three-wire three ammeter, and the third group relay
Three relay module of device and three relay module of the 4th group relay are connected respectively.
6. massive quantity power supply and measurement failure simulation device as claimed in claim 5, which is characterized in that in the third group relay and institute
Stating each group relay in the 4th group relay includes the 4th relay module, the 5th relay module and the 6th relay mould
Block, each relay module includes the in the 4th relay module, the 5th relay module and the 6th relay module
Four relays, the 5th relay and the 6th relay；
The 5th relay mould in the 4th relay and the 4th group relay of the 4th relay module in third group relay
The 4th relay connection of block, the 5th relay and the 4th relay module in the 4th group relay the 5th relay company
It connects, the 6th relay is connect with the 6th relay of the 6th relay module in the 4th group relay；
The 4th relay mould in the 4th relay and the 4th group relay of the 5th relay module in third group relay
The 4th relay connection of block, the 5th relay and the 5th relay module in the 4th group relay the 5th relay company
It connects, the 6th relay is connect with the 4th relay of the 6th relay module in the 4th group relay；
The 5th relay mould in the 4th relay and the 4th group relay of the 6th relay module in third group relay
The 6th relay connection of block, the 5th relay and the 6th relay module in the 4th group relay the 5th relay company
It connects, the 6th relay is connect with the 6th relay of the 4th relay module in the 4th group relay.
7. massive quantity power supply and measurement failure simulation device as claimed in claim 4, which is characterized in that the isolating transformer and decompression become
The model JssG-7KVA of depressor, the model DSSD331 of the phase three-wire three ammeter, the model of the voltage transformer
JDG4, the model AHN22324N of the relay, the model LMZJ1-0.5 of the current transformer.
8. massive quantity power supply and measurement failure simulation device as described in claim 1, which is characterized in that the signal acquisition unit further includes
Special transformer acquisition terminal, the input terminal of the special transformer acquisition terminal connect with the output end of the phase three-wire three ammeter, output end and institute
State control unit connection, the model TLY2130 of the special transformer acquisition terminal.
9. massive quantity power supply and measurement failure simulation device as described in claim 1, which is characterized in that the load unit further includes open circuit
Device, one end of the breaker connect as the input terminal of the load unit with the output end of the step-down transformer, the other end
It is separately connected with the multiple load, the model A9F18363-3P of the breaker.
10. a kind of massive quantity power supply and measurement failure simulation device characterized by comprising
Load unit, the load unit are made of multiple loads；
Voltage transformation unit is isolated, which includes isolating transformer and step-down transformer, the isolating transformer it is defeated
Enter end to connect with the electrical connection of the city 400V, output end with the input terminal of the step-down transformer, the output end of the step-down transformer
It is connect with the input terminal of the load unit；
Signal acquisition unit, which has phase three-wire three ammeter, the first relay group and voltage transformer, described
Three phase voltage collection terminals of phase three-wire three ammeter are mutual by each relay and the voltage of the first relay group respectively
Sensor connection；
Control unit, the output end of the control unit is respectively and in the control terminal of the load unit, the first relay group
Each relay control terminal connection；
Wherein, described control unit is used for conducting and shutdown by controlling each relay in the first relay group, with
The connection of any one phase line input terminal and voltage transformer of the phase three-wire three ammeter is disconnected, and the multiple for controlling
The quantity of the load to be worked in load based on alternating current, to simulate the open phase fault in massive quantity power supply and measurement measurement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821797319.1U CN209401205U (en) | 2018-11-01 | 2018-11-01 | High-supply high-count fault simulation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821797319.1U CN209401205U (en) | 2018-11-01 | 2018-11-01 | High-supply high-count fault simulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450620A (en) * | 2021-08-10 | 2021-09-28 | 国网辽宁省电力有限公司沈阳供电公司 | Electric power metering device simulation field workbench and method for simulating field fault |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450620A (en) * | 2021-08-10 | 2021-09-28 | 国网辽宁省电力有限公司沈阳供电公司 | Electric power metering device simulation field workbench and method for simulating field fault |
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