CN105203984B - The wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer - Google Patents
The wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer Download PDFInfo
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- CN105203984B CN105203984B CN201410262275.2A CN201410262275A CN105203984B CN 105203984 B CN105203984 B CN 105203984B CN 201410262275 A CN201410262275 A CN 201410262275A CN 105203984 B CN105203984 B CN 105203984B
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Abstract
The present invention relates to a kind of wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer, its interval measurement apparatus (4) connects the secondary circuit of conventional current transformer (3), conventional voltage transformer (1) by combining unit (2), so as to obtain the electric current that conventional current transformer (3) secondary side of the string branch road flows into combining unit (2), and the voltage of conventional voltage transformer (1) secondary side access combining unit (2), and data are passed into measurement head station (5) by WLAN interface.Finally by head station display panel (9), the data that the data that WLAN interface is sent and the MMS nets from transformer station are obtained are contrasted.This instrument only needs 1 to 2 people to operate, it is most important that the wattless power measurement situation of bus measure and control device that can conveniently to being set in protective chamber is checked, verified, and ensures the net synchronization capability of the measurement of each bar branch road of bus.It can be applied to the verification field of the intelligent station based on traditional transformer.
Description
Technical field
The present invention relates to a kind of bus reactive power rate tester, more particularly to a kind of intelligent power transformation based on traditional transformer
The tester for 3/2 wiring bus reactive power rate of standing.
Background technology
Preceding power network development is to after this current stage, and the state estimation work of power network is one very meaningful and very
Important work.In current electric grid in super extra-high voltage intelligent substation 330kV, 500kV part or 1000kV parts, extensively should
It is 3/2 main wiring mode.Because traditional transformer has many advantages, such as, thus widely use, or even in intelligent substation
Without using new IED (intelligent power equipment) electronic mutual inductor, but use traditional transformer.
The secondary side connection of transformer is located at the combining unit in the Intelligent control cabinet in switch yard by this mode of connection,
And then current signal is become into digital optical signal by combining unit, the measure and control device and others being sent in protective chamber are secondary
Device.Because the area of super extra-high voltage intelligent substation is very big, the intelligence in the floor space of the part of only 330kV and the above farther out
The distance of energy switch board to protective chamber has typically been above 100 meters.
The secondary device of intelligent substation is made up of three layer of two net, refers to three-layer equipment two-tier network, if two host's mistakes
Journey layer network, station level network.Process-level network (is solved networking transmission to simulate by GOOSE nets (transmission switching value) and SV nets
Amount) composition.Station level mainly uses intelligent substation 61850MMS manufacture messaging systems, is to be based on IEC-22850 agreements
Intelligent substation communication basis.MMS is a kind of application layer protocol.Realizing between the equipment for coming from different manufacturers has
Interoperability, makes the system integration become simple, conveniently.At present, it is of wide application.
, it is necessary to which the measurement performance to the measurement and control instrument at scene carries out live inspection during dispatching of power netwoks and operational management
Look into.Currently, when the part to 3/2 bus carries out DATA REASONING, there is the method for several measurements.First method is：Use biography
The measuring instrument of system needs the measurement of a string of branch roads then a string of branch roads, and measurement complete strips bus, which respectively goes here and there the duration of branch road, about to be needed
Want 15 minutes to 16 minutes.After measurement is over, calculated according to the result of measurement.In this process, due on power network
Flow situations have occurred and that change, cause the result of measurement very inaccurate or even these data can not be used.Second method,
All arrange one to two full-time staff using often string branch road, branch road of often going here and there is equipped with a measuring instrumentss, and by talk back equipment and
When contact, with ensure it is each string branch road measurement data while property.Using second method, required manpower is more, with 10 string branch
Exemplified by the bus on road, then 10~8 people are needed, while record data.Even so, or it cannot be guaranteed that while metric data
Property.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is how to provide a kind of based on traditional wiring of transformer intelligent transformer station 3/2
Bus reactive power rate tester, conveniently the reactive power equilibrium of bus measure and control device set in protective chamber is surveyed
The progress of amount situation is checked, verified, and ensures metric data while property.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of wiring of intelligent station 3/2 based on traditional transformer is female
Line reactive power tester, it is characterised in that including more than one interval measurement device；
The interval measurement device connection electric current card stream pincers and pressure-wire, pass through the merging in Intelligent control cabinet in transformer station
Unit connection conventional current transformer, the secondary circuit of conventional voltage transformer；
The interval measurement device is made up of a set of modular equipment being arranged in a complete enclosure, bag
The first CPU module is included, in the periphery of the first CPU module provided with the first chargeable electrical storage device, the first power knob switch, first
Clock module, the first watchdog module, for connecting the voltage measurement A/D module in three-phase voltage measurement loop, for connecting three-phase
The current measurement A/D module of current measurement circuit, the first WLAN adaptation modules, gps satellite synchronous interface module, the first storage mould
Block, indicating lamp module；
The voltage measurement A/D module has voltage measurement circuit Ua, Ub, Uc, Un；
The current measurement A/D module has jaw type current measurement circuit Ia, Ib, Ic, In；
Interval measurement device is stuck in outside the A phase secondary side wiring of conventional current transformer by the way that the first electric current card stream pincers are outer
Side, to measure input jaw type current measurement circuit Ia current value, so as to obtain the electricity that secondary side A phases flow into combining unit
Stream；The outer B phase secondary sides wiring outside for being stuck in conventional current transformer is clamped by the second electric current card stream, to measure input jaw type
Current measurement circuit Ib current value, so as to obtain the electric current that secondary side B phases flow into combining unit；Clamped by the 3rd electric current card stream
It is outer to be stuck on the outside of the C phase secondary sides wiring of conventional current transformer, to measure input jaw type current measurement circuit Ic electric current
Value, so as to obtain the electric current that secondary side C phases flow into combining unit；Conventional current mutual inductance is stuck in by the way that neutral current card stream pincers are outer
On the outside of the secondary side neutral conductor wiring of device, to measure input jaw type current measurement circuit In current value, so as to obtain secondary
The side neutral conductor flows into the electric current of combining unit；
Interval measurement device is connected directly between in the A phase secondary side wiring of conventional voltage transformer by first voltage line,
For measuring voltage measurement circuit Ua voltage, so as to obtain the voltage that secondary side A phases access combining unit；Pass through second voltage
Line is connected directly between in the B phase secondary side wiring of conventional voltage transformer, the voltage for measuring voltage measurement circuit Ub, so that
Obtain the voltage that secondary side B phases access combining unit；The C phases two of conventional voltage transformer are connected directly between by tertiary voltage line
On secondary side joint line, for measuring voltage measurement circuit Uc voltage, so as to obtain the voltage that secondary side C phases access combining unit；
It is connected directly between by neutral conductor pressure-wire in the neutral conductor secondary side wiring of conventional voltage transformer, for measuring voltage measurement
Loop Un voltage, so as to obtain the voltage that the secondary side neutral conductor accesses combining unit；
Interval measurement device obtains lock in time by the gps satellite sync cap on gps satellite synchronous interface module, leads to
The WLAN WLAN interface crossed in the first WLAN adaptation modules sends to the measurement head station equipped with head station WLAN interface and is spaced
Time and electric parameter that measurement apparatus is measured；
What the measurement head station was made up of a set of modular equipment being arranged in a complete enclosure, including second
CPU module, the periphery of second CPU module is provided with the second chargeable electrical storage device, second source button switch, second clock
Module, the second watchdog module, the 2nd WLAN adaptation modules, the second memory module, MMS Ethernet adaptation modules；
Head station is measured to receive from interval measurement device through wireless by the WLAN interface of the WLAN adaptation modules of head station the 2nd
The data that LAN WLAN interface is sent.
Preferably, the wiring bus tester of traditional transformer intelligent transformer station 3/2 includes four interval measurement devices.
The wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer that the present invention is provided is verified
When, comprise the following steps：
Step one：Interval measurement device is clamped by the first electric current card stream, the second electric current card stream is clamped, the 3rd electric current card stream
Pincers, neutral current card stream pincers, the respectively outer A phase secondary sides wiring outside for being stuck in conventional current transformer, B phase secondary side wiring
On the outside of outside, the wiring of C phase secondary sides, on the outside of the wiring of the secondary side neutral conductor；
By current measurement A/D module, the inflow of conventional current transformer secondary side A phase, B phase, C phase and the neutral conductor is measured
The electric current of combining unit；
Interval measurement device is passed through into first voltage line, second voltage line, tertiary voltage line, neutral conductor pressure-wire, difference
It is connected to the A phase secondary sides wiring of conventional voltage transformer, the wiring of B phase secondary sides, the wiring of C phase secondary sides, neutral conductor secondary side
In wiring；
By voltage measurement A/D module, the access of conventional voltage transformer secondary side A phase, B phase, C phase and the neutral conductor is measured
The voltage of combining unit；
Step 2：Interval measurement device receives the clock signal of synchronous satellite by gps satellite sync cap thereon, and
The electric current at the branch road interval, active, idle and its direction under whole time preservation；Interval measurement device is by this branch road interval
Electric current, active, idle and its direction, the time tag for adding this moment is packaged into packet together, by wireless local
Net WLAN interface is sent to the measurement head station equipped with head station WLAN interface；
Step 3：Measurement head station is linked into the MMS of 3/2nds parts of intelligent substation nets, and when from the net
Carve extract be sent on each measure and control device station level by active, the idle and its direction in observing and controlling branch road interval, and pass through MMS
In net pair when signal record monitor clock signal in real time, and be stored in inside measurement head station；
Step 4：Measurement head station receives the electricity at each branch road interval that each interval measurement device is sent by WLAN interface
Behind stream, active, idle and its direction, it will be sorted according to branch road compartment name, the time sent from WLAN interface is represented respectively
Mark, by the time of measuring of same whole time, electric current, active, idle and its direction and from during the measurement that MMS nets are got
Between, electric current, active, idle list respectively, and calculate whole piece bus and active power and and reactive power；
Step 5：Measurement head station shows the key parameter of step 4, and and step on its measurement head station display panel
Three data are contrasted.
(3) beneficial effect
A kind of wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer of the present invention, including one
Above interval measurement device, the interval measurement device connection electric current card stream pincers and pressure-wire, passes through Based Intelligent Control in transformer station
Combining unit connection conventional current transformer in cabinet, the secondary circuit of conventional voltage transformer, so as to obtain the string branch road
The electric current of conventional current transformer secondary side A phase, B phase, C phase and the inflow combining unit of the neutral conductor, and conventional voltage transformer
Secondary side A phase, B phase, C phase and the neutral conductor access the voltage of combining unit, and the data measured are passed to by WLAN interface
Measure head station.Finally by the head station display panel of measurement head station, the data that WLAN interface is sent and the MMS nets from transformer station
The data got are contrasted.This instrument only needs 1 to 2 people to operate, it is most important that can be conveniently to protection
The wattless power measurement situation of the bus measure and control device of small indoor setting is checked, verified, and ensures each bar branch road of bus
The net synchronization capability of measurement.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1：A kind of configuration under a kind of mode of connection of intelligent substation 3/2 based on traditional transformer that the present invention is provided
Scheme schematic diagram；
Fig. 2：Structure connection diagram between interval measurement device and combining unit that the present invention is provided；
Fig. 3：The external structure schematic diagram of the measurement head station of the present invention；
Fig. 4：A kind of internal structure schematic diagram for interval measurement device that the present invention is provided；
Fig. 5：A kind of internal structure schematic diagram for measurement head station that the present invention is provided；
In figure：1st, conventional voltage transformer；2nd, combining unit；3rd, conventional current transformer；4th, interval measurement device；5th, survey
Measure head station；6th, gps satellite sync cap；7th, WLAN WLAN interface；8th, head station WLAN interface；9th, head station display panel；
10th, neutral current card stream is clamped；11st, the first electric current card stream is clamped；12nd, the second electric current card stream is clamped；13rd, the 3rd electric current card stream is clamped；14、
First voltage line；15th, second voltage line；16th, tertiary voltage line；17th, neutral conductor pressure-wire；18th, the observing and controlling of protective chamber device is filled
Put；19th, MMS interface；20th, the first CPU module；21st, the first chargeable electrical storage device；22nd, the first power knob is switched；23rd,
One clock module；24th, the first watchdog module；25th, voltage measurement A/D module；26th, current measurement A/D module；27th, the first WLAN
Adaptation module；28th, gps satellite synchronous interface module；29th, the first memory module；30th, indicating lamp module；31st, the second CPU module；
32nd, the second chargeable electrical storage device；33rd, second source button switch；34th, second clock module；35th, the second watchdog module；
36th, the 2nd WLAN adaptation modules；37th, the second memory module；38th, MMS Ethernets adaptation module.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
As shown in figure 1, one kind under the mode of connection of intelligent substation 3/2 based on traditional transformer that the present embodiment is provided
Allocation plan schematic diagram；Structure annexation wherein between interval measurement device and combining unit is as shown in Fig. 2 measurement head station
5 external structure schematic diagram is as shown in Figure 3.
The connection electric current card stream pincers of interval measurement device 4 and pressure-wire, pass through the merging list in Intelligent control cabinet in transformer station
Member 2 connects conventional current transformer 3, the secondary circuit of conventional voltage transformer 1；
As shown in figure 4, the interval measurement device 4 is a set of modular equipment by being arranged in a complete enclosure
Come what is constituted, including the first CPU module 20, it is provided with the first chargeable electrical storage device 21, first in the periphery of the first CPU module 20
Power knob switchs the 22, first clock module 23, the first watchdog module 24, the voltage for connecting three-phase voltage measurement loop
Measure A/D module 25, the current measurement A/D module 26 for connecting three-phase current measuring loop, the first WLAN adaptation modules 27,
Gps satellite synchronous interface module 28, the first memory module 29, indicating lamp module 30；
The voltage measurement A/D module 25 has voltage measurement circuit Ua, Ub, Uc, Un；
The current measurement A/D module 26 has jaw type current measurement circuit Ia, Ib, Ic, In；
Interval measurement device 4 clamps the A phase secondary side wiring that conventional current transformer 3 is stuck in outside 11 by the first electric current card stream
Outside, to measure input jaw type current measurement circuit Ia current value, so that obtaining secondary side A phases flows into combining unit 2
Electric current；Clamped and be stuck in outside 12 on the outside of the B phase secondary sides wiring of conventional current transformer 3 by the second electric current card stream, it is defeated to measure
Enter jaw type current measurement circuit Ib current value, so as to obtain the electric current that secondary side B phases flow into combining unit 2；Pass through the 3rd electricity
It is stuck on the outside of the C phase secondary sides wiring of conventional current transformer 3, is returned to measure the current measurement of input jaw type outside stream card stream pincers 13
Road Ic current value, so as to obtain the electric current that secondary side C phases flow into combining unit 2；10 wild cards are clamped by neutral current card stream
On the outside of the secondary side neutral conductor wiring of conventional current transformer 3, to measure input jaw type current measurement circuit In electric current
Value, so as to obtain the electric current that the secondary side neutral conductor flows into combining unit 2；
Interval measurement device 4 is connected directly between the A phase secondary side wiring of conventional voltage transformer 1 by first voltage line 14
On, for measuring voltage measurement circuit Ua voltage, so as to obtain the voltage that secondary side A phases access combining unit 2；Pass through second
Pressure-wire 15 is connected directly between in the B phase secondary side wiring of conventional voltage transformer 1, the electricity for measuring voltage measurement circuit Ub
Pressure, so as to obtain the voltage that secondary side B phases access combining unit 2；Conventional voltage is connected directly between by tertiary voltage line 16 mutual
In the C phase secondary side wiring of sensor 1, for measuring voltage measurement circuit Uc voltage, so that obtaining secondary side C phases accesses merging
The voltage of unit 2；It is connected directly between by neutral conductor pressure-wire 17 in the neutral conductor secondary side wiring of conventional voltage transformer 1,
For measuring voltage measurement circuit Un voltage, so as to obtain the voltage that the secondary side neutral conductor accesses combining unit 2；
When interval measurement device 4 obtains synchronous by the gps satellite sync cap 6 on gps satellite synchronous interface module 28
Between, by the WLAN WLAN interface 7 in the first WLAN adaptation modules 27 to the measurement head station equipped with head station WLAN interface 8
Time and electric parameter that 5 transmission interval measurement devices 4 are measured；
As shown in figure 5, the measurement head station 5 is made up of a set of modular equipment being arranged in a complete enclosure
, including the second CPU module 31, the periphery of second CPU module 31 is provided with the second chargeable electrical storage device 32, second source
Button switch 33, second clock module 34, the second watchdog module 35, the 2nd WLAN adaptation modules 36, the second memory module 37,
MMS Ethernets adaptation module 38；
Head station 5 is measured to receive from interval measurement dress by the head station WLAN interface 8 of the WLAN adaptation modules 36 of head station the 2nd
Put 4 data sent through WLAN WLAN interface 7.
A kind of wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer that the present embodiment is provided, bag
Include 4 interval measurement devices.Specifically enter with the wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer
During row verification, the quantity of its interval measurement device included is configured according to the string number of branch road, can be 1 of the above
Any quantity.
Only illustrate the structure of interval measurement device on wherein one branch road, interval measurement device and conventional current mutual inductance below
The connected mode of device, the secondary circuit of conventional voltage transformer, and interval measurement device carry out school to the data on the string branch road
The operation principle and process tested.
The interval measurement device 4 in the present embodiment a set of modular is set by be arranged in a complete enclosure
For come what is constituted, interval measurement device 4 sets the first chargeable electricity of electrical storage device 21, first in the periphery of the first CPU module 20
Source button switch 22, the first clock module 23, the first watchdog module 24, the voltage survey for connecting three-phase voltage measurement loop
Measure A/D module 25, the current measurement A/D module 26 for connecting three-phase current measuring loop, the first WLAN adaptation modules 27, GPS
Satellite synchronization interface module 28, the first memory module 29, indicating lamp module 30 are constituted.
The characteristics of this interval measurement device, is equipped with battery, can after fully charging, and can continue a journey work, conveniently exists
Outdoor scene carries out not needing external power supply can be carried out under 3/2 mode of connection.
Next is provided with gps satellite synchronous interface module, can cause the data of each interval measurement measurement device and be
Data on section at the same time.
WLAN adaptation modules are finally equipped with, the data wirelessly measured are sent by WLAN interface
Go out, simplify the wiring at scene.
In the present embodiment, measurement head station 5 is in the periphery of the second CPU module 31 provided with the second chargeable electrical storage device 32, the
Two power knobs switch 33, second clock module 34, the second watchdog module 35, the storage of the 2nd WLAN adaptation modules 36, second
Module 37, MMS Ethernets adaptation module 38.
The characteristics of this measurement head station, is equipped with chargeable electrical storage device, can after fully charging, and can continue a journey work, side
Just scene outdoor under 3/2 mode of connection carries out not needing external power supply can be carried out.
Next is provided with memory module, can store the handled data finished.
WLAN adaptation modules are finally equipped with, the data wirelessly measured are sent by WLAN interface
Go out, simplify the wiring at scene.
In intelligent station normal work, the secondary side voltage and conventional current of the collection conventional voltage transformer 1 of combining unit 2
The secondary side current of transformer 3, after digitlization, the SV nets through intelligent substation send protective chamber device measure and control device 18 to,
And then send the MMS nets of the intelligent station to.
When carrying out basic data check to measure and control device at the scene, by the jaw type electricity of interval measurement device 4 in switch yard
Flow measurement loop Ia, Ib, Ic, In are connected to the secondary of the conventional current transformer 3 of the behind of combining unit 2 in Intelligent control cabinet
On side, voltage measurement circuit Ua, Ub, Uc, Un of interval measurement device 4 are connected directly between to the conventional voltage after combining unit 2
The secondary side of transformer 1.
Interval measurement device 4 by the first electric current card stream clamp the 11, second electric current card stream clamp the 12, the 3rd electric current card stream pincers 13,
Neutral current card stream pincers 10 come measure respectively the string branch road conventional current transformer 3 secondary side A phase, B phase, C phase and in
The electric current of the inflow combining unit 2 of property line；Pass through first voltage line 14, second voltage line 15, tertiary voltage line 16, neutral conductor electricity
Line ball 17 closes to measure the secondary side A phase, B phase, C phase of conventional voltage transformer 1 for accessing the string branch road and neutral conductor access respectively
And the voltage of unit 2, and then active, the idle and its direction that the string branch road is flowed to from bus is measured in real time, while being defended by GPS
The moment of star sync cap 28 monitors the numerical value of clock, and at this moment idle is preserved when the gps satellite time is integer minute
Power is sent with power direction and to measurement head station 5.
Interval measurement device 4 is after the reactive power of the string branch road and direction is measured, through WLAN WLAN interface 7
Send to head station WLAN interface 8, and then arrive measurement head station 5；MMS interface 19 of the head station 5 through MMS Ethernet adaptation modules is measured,
Voltage, the electricity that protective chamber device measure and control device 18 is published in this online interval of MMS are obtained on the net from intelligent substation MMS
The electric parameters such as stream.Handled after reception after data in its internal list and be shown in measurement head station display panel 9.
The structure of interval measurement device on other branch roads, interval measurement device and conventional current transformer, conventional voltage
The connected mode of the secondary circuit of transformer, and the work that interval measurement device is verified to the data on the string branch road are former
Reason, it is identical with the branch road, repeat no more here.
In the present embodiment, by the wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer, school is carried out
The method tested comprises the following steps：
The first step：Interval measurement device 4 is clamped into the 11, second electric current card stream by the first electric current card stream and clamps the 12, the 3rd electric current
Block stream pincers 13, neutral current card stream the pincers 10 outer A phase secondary sides wiring outside for being stuck in conventional current transformer, B phases two respectively
On the outside of secondary side joint line, on the outside of the wiring of C phase secondary sides, on the outside of the wiring of the secondary side neutral conductor；
By current measurement A/D module 26, the stream of conventional current transformer secondary side A phase, B phase, C phase and the neutral conductor is measured
Enter the electric current of the first string combining unit 2；
By the first voltage line 14 of interval measurement device 4, second voltage line 15, tertiary voltage line 16, neutral conductor pressure-wire
The 17 A phase secondary sides wiring for being connected to conventional voltage transformer, the wiring of B phase secondary sides, the wiring of C phase secondary sides, the neutral conductor
In secondary side wiring；
By voltage measurement A/D module 25, connecing for conventional voltage transformer secondary side A phase, B phase, C phase and the neutral conductor is measured
Enter the voltage of the first string combining unit 2；
And then active, the idle and its direction that the string branch road is flowed to from bus is measured in real time, while synchronous by gps satellite
The moment of interface 6 monitors the numerical value of clock.
Second step：Interval measurement device 4 receives the clock signal of synchronous satellite by gps satellite sync cap 6 thereon,
And under the preservation of whole time the electric current at the branch road interval, active, idle and its direction.Interval measurement device 4 props up this
The electric current at road interval, active, idle and its direction, the time tag for adding this moment is packaged into packet together, by nothing
Line LAN WLAN interface 7 is sent to the measurement head station 5 equipped with head station WLAN interface 8.
Interval measurement device and conventional current transformer, the company of the secondary circuit of conventional voltage transformer on other branch roads
Mode, and the operation principle that interval measurement device is verified to the data on the string branch road are connect, it is identical with the branch road, here
Repeat no more.
3rd step：Measurement head station 5 is linked into the MMS of 3/2 part of intelligent substation nets, and the moment carries from the net
Take be sent on each measure and control device station level by active, the idle and its direction in observing and controlling branch road interval, and netted by MMS
Pair when signal record monitor clock signal in real time, and be stored in inside measurement head station 5.
4th step：Measurement head station 5 receive each interval measurement device pass through WLAN WLAN interface send each
Behind the electric current at branch road interval, active, idle and its direction, it will be sorted according to branch road compartment name, and represent connect from WLAN respectively
Mouthful time tag is sent, taken the time of measuring of same whole time, electric current, active, idle and its direction and from MMS nets
The time of measuring that arrives, electric current, active, idle list respectively, and calculate whole piece bus and active power and and reactive power.
5th step：Measurement head station 5 shows the key parameter of previous step on its measurement head station display panel 9.
The data of display are as follows：
Table 1
As can be seen from the above table, the reactive power of whole piece bus is balance, but from the point of view of the data that MMS is got on the net,
The idle of whole piece bus is in unbalanced state, and the idle data of branch road 1 and branch road 4 have problem.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, to technical scheme carry out it is various combination,
Modification or equivalent, without departure from the spirit and scope of technical solution of the present invention, the right that all should cover in the present invention is wanted
Ask among scope.
Claims (2)
1. a kind of wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer, it is characterised in that including one
Above interval measurement device (4)；
Interval measurement device (4) the connection electric current card stream pincers and pressure-wire, pass through the merging in Intelligent control cabinet in transformer station
Unit (2) connection conventional current transformer (3), the secondary circuit of conventional voltage transformer (1)；
The interval measurement device (4) is made up of a set of modular equipment being arranged in a complete enclosure, bag
The first CPU module (20) is included, the first chargeable electrical storage device (21), the first power supply are provided with the periphery of the first CPU module (20)
Button switch (22), the first clock module (23), the first watchdog module (24), the electricity for connecting three-phase voltage measurement loop
Pressure measurement A/D module (25), the current measurement A/D module (26) for connecting three-phase current measuring loop, the first WLAN adaptation moulds
Block (27), gps satellite synchronous interface module (28), the first memory module (29), indicating lamp module (30)；
The voltage measurement A/D module (25) has voltage measurement circuit Ua, Ub, Uc, Un；
The current measurement A/D module (26) has jaw type current measurement circuit Ia, Ib, Ic, In；
Interval measurement device (4) clamps the secondary side joint of A phases that conventional current transformer (3) is stuck in outside (11) by the first electric current card stream
On the outside of line, to measure input jaw type current measurement circuit Ia current value, so that obtaining secondary side A phases flows into combining unit
(2) electric current；Clamped and be stuck in outside (12) on the outside of the B phase secondary sides wiring of conventional current transformer (3) by the second electric current card stream, come
Input jaw type current measurement circuit Ib current value is measured, so as to obtain the electric current that secondary side B phases flow into combining unit (2)；
Clamped and be stuck in outside (13) on the outside of the C phase secondary sides wiring of conventional current transformer (3) by the 3rd electric current card stream, to measure input
Jaw type current measurement circuit Ic current value, so as to obtain the electric current that secondary side C phases flow into combining unit (2)；Pass through the neutral conductor
On the outside of the secondary side neutral conductor wiring that conventional current transformer (3) is stuck in outside electric current card stream pincers (10), to measure input jaw type
Current measurement circuit In current value, so as to obtain the electric current that the secondary side neutral conductor flows into combining unit (2)；
Interval measurement device (4) is connected directly between the secondary side joint of A phases of conventional voltage transformer (1) by first voltage line (14)
On line, for measuring voltage measurement circuit Ua voltage, so as to obtain the voltage that secondary side A phases access combining unit (2)；Pass through
Second voltage line (15) is connected directly between in the B phase secondary side wiring of conventional voltage transformer (1), is returned for measuring voltage measurement
Road Ub voltage, so as to obtain the voltage that secondary side B phases access combining unit (2)；It is directly connected to by tertiary voltage line (16)
In the C phase secondary side wiring of conventional voltage transformer (1), for measuring voltage measurement circuit Uc voltage, so as to obtain two
Secondary side C phases access the voltage of combining unit (2)；Conventional voltage transformer (1) is connected directly between by neutral conductor pressure-wire (17)
Neutral conductor secondary side wiring on, for measuring voltage measurement circuit Un voltage, thus obtain the secondary side neutral conductor access conjunction
And the voltage of unit (2)；
Interval measurement device (4) obtains synchronous by the gps satellite sync cap (6) on gps satellite synchronous interface module (28)
Time, by the WLAN WLAN interface (7) in the first WLAN adaptation modules (27) to equipped with head station WLAN interface (8)
Measurement head station (5) sends time and the electric parameter that interval measurement device (4) is measured；
What the measurement head station (5) was made up of a set of modular equipment being arranged in a complete enclosure, including second
CPU module (31), the periphery of second CPU module (31) is provided with the second chargeable electrical storage device (32), second source button
Switch (33), second clock module (34), the second watchdog module (35), the 2nd WLAN adaptation modules (36), the second storage mould
Block (37), MMS Ethernets adaptation module (38)；
Head station (5) is measured to receive from interval measurement device by the WLAN interface (8) of the WLAN adaptation modules (36) of head station the 2nd
(4) data sent through WLAN WLAN interface (7).
2. the intelligent station 3/2 wiring bus reactive power rate tester according to claim 1 based on traditional transformer, it is special
Levy and be, traditional wiring bus tester of transformer intelligent transformer station 3/2 includes four interval measurement devices.
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Inventor after: Li Rui Inventor after: Kang Yinzhu Inventor after: Song Shuyong Inventor after: Ma Zhenguo Inventor after: Hao Wei Inventor after: Sun Ruihao Inventor after: Zhang Yue Inventor after: Liu Jie Inventor before: Li Rui Inventor before: Song Shuyong Inventor before: Ma Zhenguo Inventor before: Hao Wei Inventor before: Sun Ruihao Inventor before: Zhang Yue Inventor before: Liu Jie |