CN104505305B - The design parameter of the total transmitting circuit of accident selects and method of testing - Google Patents
The design parameter of the total transmitting circuit of accident selects and method of testing Download PDFInfo
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- CN104505305B CN104505305B CN201410857626.4A CN201410857626A CN104505305B CN 104505305 B CN104505305 B CN 104505305B CN 201410857626 A CN201410857626 A CN 201410857626A CN 104505305 B CN104505305 B CN 104505305B
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- relay
- accident
- transmitting circuit
- total transmitting
- involution
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention provides the design parameter of the total transmitting circuit of a kind of accident to select and method of testing, comprises the following steps: after jumping position relay involution T1 movement time in the total transmitting circuit of selection accident and conjunction, relay excitation time T2 is as test parameter；Chopper is made to be in gate-dividing state；The normal opened contact of relay after oscillograph input being connected the normal opened contact of described jumping position relay and closing；Control breaker closing；Record ripple figure according to oscillograph record obtains T1 and T2；Calculating the difference between T1 and T2, if T1 T2 >=0, there is the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident；If T2 is T1 >=3ms, and there is not the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident.By calculating the difference between T1 and T2, above-mentioned method of testing judges whether the total transmitting circuit of accident exists the problem that the situation of an accident resultant signal by mistake can carry out detection and pre-anti-error accident resultant signal.
Description
Technical field
The present invention relates to electric power project engineering field, particularly relate to the design ginseng of the total transmitting circuit of a kind of accident
Number selects and method of testing.
Background technology
Electromagnetic relay is typically made up of iron core, coil, armature, contact reed etc..As long as at coil two
End, plus certain voltage, will pass through certain electric current, thus produces galvanomagnetic-effect in coil, armature is just
The pulling force of return spring can be overcome under the effect of electromagnetic attracting force to be drawn to iron core, thus the dynamic of band moving armature touches
Point and stationary contact (normally opened contact) adhesive.When, after coil blackout, the suction of electromagnetism disappears the most therewith, armature
Original position will be returned at the counteracting force of spring, make movable contact and original stationary contact (normally-closed contact)
Release.So adhesive, release, thus reached the purpose of conducting in circuit, cut-out.
For " normally opened, normally closed " contact of relay, can so distinguish: at when relay coil is not powered on
In the stationary contact of off-state, it is referred to as " normally opened contact "；Stationary contact in an ON state is referred to as " normally-closed contact ".
In power system, accident resultant signal is to be touched by the normally opened of relay KKJ after jumping position relay TWJ and closing
The loop that is in series of point, can clearly distinguish killer switch is carry out due to power failure requirements of plan distant
Control separating brake still breaks down due to power system, protection act tripping chopper or chopper jump.When
TWJ=1, KKJ=1, after i.e. jumping position relay TWJ and closing during the equal action of relay KKJ, accident resultant signal moves
Making, accident total photon board is bright, and starts accident signal, reminds in prison dish personnel's power system, which circuit
Or element failure.And remote control is when dividing chopper, TWJ=1, KKJ=0, accident resultant signal is failure to actuate.
At present, after position relay TWJ, conjunction are jumped in power system in the total transmitting circuit of accident, relay KKJ sets
Meter parameter select do not mate, cause jump position relay TWJ, close after relay KKJ divide in remote control, make and break road
The problem by mistake sending out accident resultant signal can be caused during device.
Summary of the invention
Based on this, it is necessary to provide a kind of accident that can carry out detection and pre-anti-error accident resultant signal problem
The design parameter of total transmitting circuit selects and method of testing.
The design parameter of the total transmitting circuit of a kind of accident selects and method of testing, comprises the following steps:
After jumping position relay involution T1 movement time in the total transmitting circuit of selection accident and conjunction during relay excitation
Between T2 as test parameter；
Chopper is made to be in gate-dividing state；Oscillograph input is connected the normal opened contact of described jumping position relay
With close after the normal opened contact of relay, by relay after jumping position relay described in described oscillograph record and closing
Record ripple figure during running；
Control breaker closing；Record ripple figure according to oscillograph record obtains when jumping position relay involution action
Between T1 and close after relay excitation time T2；
Calculate the difference between relay excitation time T2 after jumping position relay involution T1 movement time and closing,
If T1-T2 >=0, there is the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident；If
T2-T1 >=3ms, there is not the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident.
The design parameter of the total transmitting circuit of above-mentioned accident selects and method of testing, by selecting selection accident always to send out
After believing jumping position relay involution T1 movement time in loop and closing, relay excitation time T2 is as test ginseng
Number, when chopper is faded to "on" position by gate-dividing state, is recorded T1 and T2, is then jumped by calculating
After position relay involution T1 movement time and conjunction, the difference between relay excitation time T2 judges that accident is total
Whether transmitting circuit exists the situation by mistake sending out accident resultant signal, can carry out detection and pre-anti-error accident is always believed
Number problem.
Accompanying drawing explanation
Fig. 1 is an embodiment breaker operator loop structure schematic diagram；
Fig. 2 is that the design parameter of a total transmitting circuit of embodiment accident selects and method of testing flow chart；
Fig. 3 is an embodiment accident total transmitting circuit schematic diagram；
Fig. 4 is an embodiment measure and control device intake loop structure schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings the design parameter of the total transmitting circuit of accident of the present invention is selected the tool with method of testing
Body embodiment is described in detail.
Referring to Fig. 1, Fig. 1 is an embodiment breaker operator loop structure schematic diagram.
It is test breaker operator that the design parameter of the total transmitting circuit of accident of the present embodiment selects with method of testing
Relay excitation time after jumping position relay reset time in loop and closing, the structure in breaker operator loop is such as
Shown in Fig. 1, wherein, each mark is explained as follows:
TWJ: jump position relay, HBJ: combined floodgate guard relay, TBJV: anti-trip relay, BHJ: weight
Combined floodgate normal opened contact, KKJ: relay, YHJ after conjunction: remote control normal opened contact, YTJ: distant conjunction normal opened contact,
HWJ: conjunction position relay, TBJ: trip protection relay, HC: closing coil, TC: switching winding, CK:
Spring energy-storage contact, DL: switch mechanism box, LP4/LP5/LP6/LP7: output clamping, 2ZK: unidirectional current
Pressure air switch, WFS: five anti-lock, QK: the backboard terminals of switching handle, 401-419: protection device
Son, 01/02/3/7/9/11/13/15/17/19/21/31/33/37: loop numbering ,+KM: operation power supply positive terminal,
-KM: operation power supply negative electricity end.
Refer to the design parameter that Fig. 2, Fig. 2 are a total transmitting circuit of embodiment accident select and method of testing stream
Cheng Tu.
The design parameter of the total transmitting circuit of a kind of accident selects and method of testing, comprises the following steps:
Step S101: jumping position relay involution T1 movement time in the total transmitting circuit of selection accident and conjunction are follow-up
Electrical equipment excitation time T2 is as test parameter；
In step S101, the relay excitation time refers to that pressurization is energized to relay from relay coil two ends
The time that " normally opened contact " closes；Relay involution refers to that relay coil is become not leading to from energising movement time
The time that the electricity moment plays the time closed to " normally-closed contact " or " normally opened contact " is opened.
In one embodiment, jumping position relay involution T1 movement time of the described total transmitting circuit of selection accident
May range from:
T1≤10ms。
The scope of involution T1 movement time takes T1≤10ms can make jumping position relay have faster involution speed
Degree, so that jump involution T1 movement time of position relay than relay excitation time T2 after closing more
Short, then can preferably avoid the situation occurring by mistake to send out accident resultant signal.
Step S103: make chopper be in gate-dividing state；Oscillograph input is connected described jumping position relay
Normal opened contact and the normal opened contact of relay after closing, by jump described in described oscillograph record position relay and
Record ripple figure when relay operates after conjunction；
In step s 103, making chopper be in gate-dividing state is to be converted to close a floodgate by gate-dividing state to test
Relay excitation time T2 after jumping involution T1 movement time of position relay during state and closing.
Step S105: control breaker closing；Record ripple figure according to oscillograph record obtains jumps position relay
Relay excitation time T2 after involution T1 movement time and conjunction；
In one embodiment, breaker closing can be made by Guan Bi hands splice grafting point.
In one embodiment, the described record ripple figure according to oscillograph record obtains and jumps position relay involution action
After time T1 and conjunction, the step of relay excitation time T2 may include that
Record from oscillograph in ripple figure, calculate and jump position relay normally open contact displacement time difference, obtain jumping position and continue
Electrical equipment involution T1 movement time；Calculate relay normally open contact displacement time difference, relay after being closed after closing
Excitation time T2.
The relay normally open contact displacement time is jumped after position relay normally open contact conjugates time difference and closes by calculating
Difference can more efficiency obtain jump position relay involution T1 movement time and close after relay excitation time T2.
Step S107: calculate jump position relay involution T1 movement time and close after relay excitation time T2 it
Between difference, if T1-T2 >=0, there is the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident；
If T2-T1 >=3ms, there is not the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident.
In step s 107, when the situation of an appearance accident resultant signal by mistake is owing to jumping position relay involution action
Between T1 not less than relay excitation time T2 after closing, and relay this be 1ms in the error of rated voltage,
Two relay maximum erroies are 2ms, so when T2-T1 >=3ms, the total transmitting circuit of accident is not exist
Send out the situation of accident resultant signal by mistake.
The design parameter of the total transmitting circuit of above-mentioned accident selects and method of testing, by selecting selection accident always to send out
After believing jumping position relay involution T1 movement time in loop and closing, relay excitation time T2 is as test ginseng
Number, when chopper is faded to "on" position by gate-dividing state, is recorded T1 and T2, is then jumped by calculating
After position relay involution T1 movement time and conjunction, the difference between relay excitation time T2 judges that accident is total
Whether transmitting circuit exists the situation by mistake sending out accident resultant signal, can carry out detection and pre-anti-error accident is always believed
Number problem.
Select and test to further describe the design parameter of the total transmitting circuit of the accident of the present invention in detail
Method, illustrates below in conjunction with concrete application example.
Before hands closes chopper (chopper is in a point position), breaker control circuit is as it is shown in figure 1, now jump position and continue
Relay KKJ involution after electrical equipment TWJ excitation actuating, conjunction, TWJ normal opened contact Guan Bi (TWJ=1), KKJ
Normal opened contact opens (KKJ=0).Send hands by remote control and close order, relay KKJ excitation, KKJ after conjunction
Normal opened contact Guan Bi (KKJ=1), jumps position relay TWJ involution, and TWJ normal opened contact opens (TWJ=0),
As long as selective relay parameter is correct, i.e. jumping the position quick involution of relay TWJ, reset time is than relay after closing
Device KKJ excitation time is fast, i.e. TWJ normal opened contact is opened, and closes followed by KKJ normal opened contact, full
Foot T1KKJ-T2TWJ>=3ms, (relay is originally in the mistake of rated voltage would not to there is an accident resultant signal by mistake
Difference is 1ms, and two relay maximum erroies are 2ms, it is considered to the nargin of 1ms is that 3ms is advisable).
Referring to Fig. 3, Fig. 3 is an embodiment accident total transmitting circuit schematic diagram.
The total transmitting circuit of accident is combined by KKJ and TWJ contact series, if can not meet
T1KKJ-T2TWJ≤ 1ms, i.e. jumping position relay TWJ is slower than relay KKJ excitation time after closing for reset time,
Still can exist and send out the possibility that accident is total by mistake.Reason is, accident resultant signal accesses the intake of measure and control device,
And the optocoupler in intake loop opens entry loop, as shown in Figure 4, all and be connected to an electric capacity C (interference absorb back
Road), owing to capacitor exists charge and discharge process, broadening opens the time of entry loop, has opened up the widest outside simultaneously
The persistent period of interference.If choosing of capacitance parameter is unreasonable, if it is multiple to add jumping position relay TWJ
Return the time than relay KKJ excitation time is slow after closing, it is likely that during remote control separating brake, it may appear that wrong report thing
Therefore resultant signal, affect the work of prison dish.
Before hands divides chopper (chopper is closing position), control loop and see Fig. 1, now jump position relay TWJ multiple
Return, close after relay KKJ excitation actuating, TWJ normal opened contact opens (TWJ=0), KKJ normal opened contact
Guan Bi (KKJ=1).Hands jumps junction closure, relay KKJ involution after conjunction, jumps position relay TWJ excitation and moves
Work have to wait until breaker open operation, after chopper jumps position auxiliary normally closed contact DL Guan Bi, and the consolidating of chopper
Having separating brake is 15ms-50ms, and after closing, relay KKJ selects quick release relay T2KKJ≤ 10ms, energy
Avoid sending out accident resultant signal by mistake.Jump position relay TWJ involution T2 movement timeTWJ, relay KKJ after conjunction
Involution T2 movement timeKKJ, T2KKJ、T2TWJParameter selection principle is quick involution, T2TWJ≤10ms、
T2KKJ≤10ms；
This concrete application example, when testing, first selects to jump the position relay TWJ excitation actuating time
T1TWJ, relay KKJ working excitation time T1 after conjunctionKKJAs test parameter, T1TWJ、T1KKJParameter selects
Principle, meets T1KKJ-T2TWJ>=3ms, relay KKJ working excitation time T1 after i.e. closingKKJIt is greater than jumping position
Relay TWJ involution T2 movement timeTWJ
Then, making chopper be in open position, now jumping position monitoring circuit is conducting, jumps position relay
TWJ excitation actuating, TWJ=1, KKJ=0；
It is normally opened that oscillograph intake accesses relay KKJ after jumping position relay TWJ normal opened contact TWJ, conjunction
Contact KKJ.
It follows that simulation hands closes junction closure, send combined floodgate order；The record ripple figure of record from oscillograph,
After recording jumping position relay TWJ normal opened contact TWJ, conjunction, relay KKJ normal opened contact KKJ contact becomes
Bit time difference T1, T2；
Finally, judge whether to send out the situation of accident resultant signal according to the difference of T2 Yu T1 by mistake；If
The total transmitting circuit of T2-T1 >=3ms, i.e. accident is jumped relay KKJ design parameter after position relay TWJ, conjunction
Meet service requirement, do not exist and send out accident resultant signal by mistake.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (4)
1. the total transmitting circuit of accident design parameter select and method of testing, it is characterised in that include with
Lower step:
After jumping position relay involution T1 movement time in the total transmitting circuit of selection accident and conjunction during relay excitation
Between T2 as design parameter；
Chopper is made to be in gate-dividing state；Oscillograph input is connected the normal opened contact of described jumping position relay
With close after the normal opened contact of relay, by relay after jumping position relay described in described oscillograph record and closing
Record ripple figure during running；
Control breaker closing；Record ripple figure according to oscillograph record obtains when jumping position relay involution action
Between T1 and close after relay excitation time T2；
Calculate the difference between relay excitation time T2 after jumping position relay involution T1 movement time and closing,
If T1-T2 >=0, there is the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident；
If T2-T1 >=3ms, there is not the situation by mistake sending out accident resultant signal in the total transmitting circuit of the most described accident.
The design parameter of the total transmitting circuit of accident the most according to claim 1 selects and method of testing, its
Be characterised by, the described record ripple figure according to oscillograph record obtain jump position relay involution T1 movement time and
After conjunction, the step of relay excitation time T2 includes:
From record ripple figure, calculate the displacement time difference of the normal opened contact jumping position relay, obtain jumping position relay
Device involution T1 movement time；Calculate the displacement time difference of the normal opened contact of relay, relay after being closed after closing
Device excitation time T2.
The design parameter of the total transmitting circuit of accident the most according to claim 1 selects and method of testing, its
Be characterised by, jumping position relay involution T1 movement time in the described total transmitting circuit of selection accident in the range of:
T1≤10ms。
The design parameter of the total transmitting circuit of accident the most according to claim 1 selects and method of testing, its
It is characterised by, makes breaker closing by Guan Bi hands splice grafting point.
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| CN104505305B true CN104505305B (en) | 2016-11-30 |
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| CN107290658B (en) * | 2017-07-13 | 2019-08-13 | 国网浙江省电力公司绍兴供电公司 | A kind of Anti-jump Circuit of Breaker test method |
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| CN101297450B (en) * | 2005-10-28 | 2012-02-22 | 施恩禧电气有限公司 | Fault protection system and method for an electrical power distribution system |
| FR2953938B1 (en) * | 2009-12-14 | 2012-04-13 | Sagem Comm | METHOD FOR OPENING OR CLOSING AN ELECTRICAL CIRCUIT AT AN ELECTRIC COUNTER |
| CN102497016B (en) * | 2011-11-26 | 2016-08-03 | 国网河南省电力公司南阳供电公司 | The optimization method of 10kV line-breaker closing circuit |
| CN102928722B (en) * | 2012-11-19 | 2014-10-15 | 山东电力集团公司电力科学研究院 | Maloperation cause detection method for jumping lockout relay due to power frequency AC interference of transformer station |
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Effective date of registration: 20200922 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
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