SU83477A1 - Device for switching on and off high voltage DC power lines - Google Patents

Description

Known high-voltage DC breakers do not have sufficient reliability of Q5; n in the same.; are extremely complex and bulky devices.

Lack off: The designer severely limits the range of transmissions of a constant current Ei - :. icoKoro is very difficult because it is possible. spurs, parallel lines and complex networks, as well as the operation and protection of single lines:. The on-line device is reliable for ;; switching on the line of the line elektu11; 1dach of direct current sb soko nagchenneno enoveno on psnnchik Chspoleszsani .ndplkh .transtoB. applied in l1-n;: ;; x gear for CE, 1CJ.

The proposed device for switching on the power supply of high-voltage power supply is para. equipped with automatic constant current p: e; li) avanp and; i1 O1 demarcation. consists of a disconnector included in the line n intended for d, l on 11 and turn off the current of a small well of low voltage, on the arrangement for a short hall to pull out Hj, eii and transmission lines. This device is not intended to reduce the size of a switched commutator; ; currents and automatically disperses the current flowing through it of an unspecified BH1 mode of an oscillating circuit formed by an adventure net-current circuit at the moment this current passes through a zero value,

As an em- 1: ost1 and inductance of an oscillating circuit, use either this or only the natural cNn-iocTb linn n inductance of a smoothing d.rosel. included in the transmission line of the current supply of the left nannan enn, n, n1 the same indicated capacitance and intuitively, in the aggregate, also additionally include the capacitor with the capacitance n inductively,

As a short-circuit cayung device it is equipped with; a single-device control device: a mercury converter or another valve, an irregular half-wave oscillatory discharge of one sign; fast-change / Dyioniero key driver jjoro to1-: a. penetrating both.; here Ko.jef Athe.; mercury converter nln another VNTIL5G, included in the biparticular; A1p) AlapKca, a single-way A-VpKca, is a single-sided valve for an oscillating-discharge wiring harness.

A short closing terminal may be connected: .- to the midpoint of the winding of the egg-drill.

In order to increase the power network, short-circuiting loudspeakers of the deer are turned on either in parallel or in parallel and consecutively, but they are connected between the two poles of the transmission on the ground, while disconnectors and droseeln vk are suspended in any way, but in a way. In order to preserve the original gender of the poeledpaen, the instrument was used to automatically select the moment of locking the short-closing niiijcnoeodJieHiiK.

In a ppn.meepn ueto;: nstp, in the branched short-circuit direct current networks, the device is installed only on the supply substation, the selectivity of the disconnected linear disconnectors is achieved by means of a tol-atomic transmission of impulse, using the help of a new disconnector. gog.: tg.t: m.provodam, svyg-ayupgg -; Oi; o Subway; with all the old: nl-p

ON TRLPNYAMI.

Short-circuit setting of a separate HHR-PTOV substage, used for TH TR. KGZH for G OR-CHISNYYA S S YO-VO TI

chtptop pzhtzhzhke kg: m - I am

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FIG. I is shown as electrically connected ;; and the diagram of the device when it is used in the transfer of just a current of a high current; on fng. .2-kr1iz nz..nepi current vy1 r mitel5 in Yerem 1i; on fkg. 3-cpia for the attenuation of the current passing through the corona; on fng. -1 - the circuit; and the skullcapes ycTpciicTua to support the stability of the nivettor; in fig. o-ways of incorporating elements of short-circuit; psp;

A prerequisite for the possibility of the implementation of the scheme, as soon as 11 at (Bi., 5B; it fell to them :: e in the transfer of direct current, automatic - orohrodrodstvuyushcheyvnyy krntntnogo current regulator KGR (and the current limiter), one of the most common is under; -the current in the transmission of a constant ingm as in the case of |, the loadings of the line, and in case of short circuits in the neii. In the last: c.:ivac has a k) atkvremenuv.i unsteady process.

On fng. 2 schematically depicts the curve of the current change in v rl; nte. H in time d, -1 of one on-HiecTE.iei-iHoro image to: 1 of the constants of the nth current regulator during a short circuit on the inverter. With

THAT /, KPOKODYA Kip 1 CherSZ EX) 5K

/ kgg.-t. in the world,. ,, - ,,,, „. | ,,,, p.j. short time (on Vj

Mr.. - Mr. - n: - IG: Mr., L BOOTING EVERYTHING UP TO / MAX 2.5 / Om byte NCP MANY

--- PME). After two pernods, it drops to the nominal value, and after H1 periods, the whole process ends with the output / nv-e-iveronacha.chnoe value -ok in the line.

yy line transfer ios 0g-, then- have more about it ---- tch. C- and C :, and necessary.dnm1) e sglav-Tpq-oni, He Awsln L and f -.--- BOLI -..., - on СОР) are different from one inductively short circuit line to - o-h- weave him prisoeoblep) s-1 KZP obvazuts sway;) g,

and induk; s capacity

GTGG T.-OT1

-y-rv qn yq dc yes L, and current, nro-ng-1gtg (1y1 1eRodes short-circuiting. all but short-circuited CWP: it has an oscillating damped character, schematically shown in Fig. 3, and this current passes through zero several times value, because, as a rule, the oscillatory discharge current of the capacitance is several times higher than the load current of the line.

After switching on the short circuit 1, its short-circuiting devices can be opened by the disconnector Pi. This switch disconnects |) it breaks up a slightly variable pesinusoid. the current is due to the ion III deG | stv) 10n; to it in the circuit e. d. voltage drops in an arc of a short circuit or other devices, or it can be disconnected. It can be turned off without any current, if the inverter valves have already gone out and, for reliability, will automatically automati- cally lock (by preventing the possibility of supplying unpairing pulses to them).

Device B circled with a dotted line together with not shown; and on devices for automatic control it represents itself actually off a high voltage direct current device, in this case installed on an inverter substation I ;.

The entire shutdown process (including the CHiic shorting device, disconnect the disconnected,;, subsequent disconnection of the short closing device, the charging of the cable line and the restoration of the normal voltage on the non-disconnecting inverter substation I; takes about 0.2 seconds. Due to the short time, -2 continue to work normally and without interruption, as the conditions for maintaining the n work are facilitated by having a synchronous C / C compensator connected to the tertiary volume of the transformers, Installations are usually injected in order to increase the stability of the inverter and deliver it to it reactively, as well as the presence of normalization in the receiving networks and interceptor standings. In this case, the help of the described device can also be carried out and the automatic test is re-enabled again.

The described off-line interface between the networks should also be set as a waste and 1.1x from the rectifying substation and lines. In this case, simultaneously with the inclusion of xcrosis of the ycTpoiicTBa KZP. through the line through the Ossel-Li automatic switch, the rectifier B should be locked, while it should not be in the pivertoran mode. For lightened operating conditions of the kstant current controller KTP and disconnected. To disconnect PJ. between KZ P., N. DC meter transformer can be rv / lyuchepa inlipn installation in -: 1; LY ayun1ego ACTpci: cTBa L- at the beginning of the ogpayk) razrodpn;: tel P; more than T may be charged from the validity of 1 current cable on both sides. For this, two kopot were set;; for lkkulyulyx KZP and KZP devices and two throttles L; and / - ;. and maybe R.: l ::: cheN 1C c) nebol; luoii inductance D / .. In the case of unsuitable PGs; pa: lines of the oscillatory contour of the line, they can be in the form of additional components in the IC-i PM and in-it K: properties.

For lpiy with fast decay: l; oscillator and small number of passages: n1 kolsbatg. h licro through the bullets of the operation of the equipment of the oblast-nyu automatic equipment of the automatic transmission of the equipment

CU in a donor-ass donkey is triggered; for: 111, he adapts. that the ocyniecTBlSTs are influenced by fast-tracker, rgo relay ponnzhspp voltage on ltav-; the constant toksvogo regulator KTP. Owing to this, the current of the chaste is co-otozam L tea g, H gr of a splex glimpse into a circle with not about greatness: -; pag1Pzochpogo toia ,.

And eye, about OST. due to the number of current passing through the shear cut; the arcs for triggering the disconnector and other devices and enough time (Fig. 3).

in a complex network of current Jiocrojniiioio, it is possible to install short mbiMbiKaOHiero devices on one supply substation, while half a hundred; The stations are supplied only to the stationary controllers with controlled disconnectors R. Then the D / 1I disconnection of one nz of the inverter substandons includes a short-distance device that is perceived by itself: -: oscillatory currents of the entire system, it is possible to selectively disconnect the disconnecting disconnection1 -1utem automatic transmission i-niHXVibca when noMOHU pe.e and ;;; on auxiliary IR oil odes, H 13b: ba 011-: m supplying substandard with remaining substagens.

In a simple radio transmission of permanent gears:: Io1Ch) current {fig / L open power; m – ir g: itel1..noy nli and v c rt o r; about i g i about ;; With t al p and and it is possible to be produced by an automatic disconnector with help of a preliminary a. Radar m a Tinrec whom ner ep ode

TAKE SIGNAL INTO IN NIERTORNR n 1) with after / singing zapia 1 her and 1 OSP :: ng: nd, if the connector is: iptel ustl sglsgp in egol c, iV4; i.e., iz4; i ;; 1tel 3 no.1e, ia me (smoothed dhkcho. 4 n; one step).

Off the 10th device on the inverter substappe simultaneously using the device to increase the dynamic stability of the controller. In the same three-phase receiving network, a pulling is applied to: the fuse; and the current from the cell to the cell: charcoal), which, when TSPRIN5CHGPP L (H) 1 RIODODt to the PCR () 1) a i; korsto at a ak ;;; ro on the side of the right of p; oo current, Sp5: by passing from the passage through the hcchtl / pc of the boe more; yy; their chzhov. In such a case, the inverter;, ocoficjino in c,: i mercury1 and irimeneia tea:, X kgcohr; nepciaHi-r, for the time being calmed down; n1 Ectt 1k interruption 1: transfer to the mouthwash by the apt; Pches:; hm From h1stro51st ChoN-1NM metering tighten the commutator;

The iipH helper meter 5 for the duration of the burning and the supply of a pulse for switching on above iHca of another short-circuiting CVF device and one time through the control device 6-per inverter inversion, Poznpiya 7 in FIG. 4, is indicated by ycTpoiicTBO for controlling short-circuit fixture and in the control device for controlling short-circuit fixture in FIG.

A short circuit on the side of the floor of another current is not accompanied by an overload of the main valves; 1verter and they go out without overturning. After some time, the short-circuiting contact 2 is turned off during the run;: -; and through the current path of oscillating discharge, the rectifier discharges the cable and the inverter smoothly enters the work if the load of the launcher is eliminated,, 1, ,one; The discontinuity of the power supply of the chipset is about 0.2 seconds, and the PS feels the gut consumers; Reception eeti. If the fall does not disappear, the short .i; device 2 is switched on a second time and when this zakpita is turned off, the substation is disconnected. The distributor on the side of the constant current doesn’t result

71, I am an imperative nodstagshchii, Issue 1nenpo1 | according to the three-phase bridge circuit, it is possible to make a short-cut device from the lv, x half; The middle point is connected via a co-detector to the zero point of the star winding Bbicniero and the regulator tr; 11h-formato 1a, Etnm prevented the overload of the valves also i: with s, t / kk to, ommutai, and in (ii) half of the siver,

The scheme of switching on claws of the 1st substandard, and is similar to the scheme of translations of the so-called “usable commutation, the service of Kanieii d, r1 of the reagents of the energy of my energy, consumption, my inversion: oom. Therefore, the short circuit of the switch-off device permanently)) current can be used under normal conditions and as an element of artificial switching, which improves the use of the equipment of the equipment.

As a short K biai; x is adapted and | can be removed from a vy1: oio, chyky mercury; can be removed from a producer .1. meadow sun;;: Marx or liiibie high-voltage venti.ti. Vept .; lSH1Pht 1ri: lo11: here's how 1: about the usual scheme with psp sci11c: l only odio | (110Luvo.category of one sign, and with vg: exclusion according to two-poluyyriidioy scheme, skip over; 1 both of the half-wave oscillatory category. For this purpose, one phase of a high-speed, high-voltage AC switch can also be used, for example, switching on the air gap BcnoMoraTe.ibHoii arc to turn on; help for working as a short-circuit device is Marx's arc valve as having pain

SET01; P) O) RH of SURSTRANTS and

the termination of the yungy n) and this controllability, while due to the meeopoise of erscpxto) of mercury emissions ;; In these cases, in succession of cases, consistently with them, should be connected to Heeogical resistance.

Marx's arc valve can be modified to pass o6e; ix half-wave current of the oscillatory discharge of the line, which is achieved by supplying and: 11 an ignition pulse to it like with a positive, t.-s and with a negative half-wave of an oscillating discharge of the line.

In order to shorten the time spent on the next dispensing of the line, the line is short-circuited after the loss of work is short: ozamnkaydde device, as well as to prevent overvoltages that may occur from the inclusion of a pre-worn out socket on the line, which has an irregular polarity, can be replaced by an automatic device. The locking shorting device with such a current flow through zero, when l.1-; |: n has the correct polarity. This moment for locking the valves, i.e., for the pretreatment of their} flow of the valve, is chosen by the lamic circuit, which fixes the polarity of the valve,; to the kootkoza; ь x: to: And:, pr:: especially 1. :; ; ::; 101; ts; kgg. device for:; ::: MSN and, cosmic; rispoz-lspism.

D -: ;; ; oi ixiiiciiiui and ppii and: i: om: H} CTii turn off the device, its individual elements can be connected in series, and Pa. tele1 or parallel-sequential, as shown in FIG. 5, where the position / denotes a two-diode scheme including ;; ; elements of shorting device, and 2-; Arch: Leggy1L10-Gusovodatel15Noe connection of the elements of the short-circuit adaptation divide by voltage.

In case of a serial connection, the device, providing a Baup1, is applied, its even distribution of the material between the separate players and the players, and the players, which are irimmed in the base of the substation. 1 turn. The terminals of the transmission line and between each of the poles and the ground — there is a ground midpoint. High-speed disconnectors can be included either in each 1: from the terminals of the LIISCH1 transmission or, in the absence of the average leakage, only in DRP1 pole; in another way, a still-life 5 disrupter can be installed; a secondary boom slowly.

In the presence of a switching off device at the inverter substation, the protection of the latter is expediently omitted with regard to this device, which saves the low-current communication cable between the installations. Required when the entire transmission is switched off with one AC main switch on the rectifier substation. Besides.

the use of switching devices makes it easier to find the place of damage.

The described ycTpoii shutdown allows the use of direct current transmission to power long long-distance railways. In this case, the LOCTOJIJI current transmission line is laid along the railways, fed from two ends. Inverter substates are carried out from this line and, like rectifying and installation, are supplied with off-load current devices, which are also installed in several places in the raslichku l1nn; -1 direct current.

Due to the fact that in the COLLAPSE X

(e.g., 400 kv) current transfer in a number of cases to compensate for capacitive ground-fault currents requires the quick switching of the bypass switch, for this purpose the device can also be described, because it turns on the mechanical switches for quick switching.

Similar devices, made in the form of mercury converters connected in a two-half-triggered scheme, or in the form of an arc valve operating in the transmission mode of both waves, if there are parallel-connected backup elements and sufficient efficiency and reliability of the valves, can also be used in high-voltage (for example, 400 AC), in those points of the system, where, according to the conditions of the system stability, particularly fast switches are needed.

P ree, dmetet and z obreteni

Claims (13)

1. A device for switching on and off power lines of direct current of high voltage, equipped with constant current regulating or limiting current circuit breakers, which means that it consists of an isolator disconnected from the line is intended for switching on and off the current of a high magnitude and is very high and 1I1), and from the P1I1 device (valve) for the JOTKoio circuit of the power supply to the transmission line, designed for switching circuits 1) of the switchboard, which is used to connect the power supply to the transmission line, designed for automatic switching, and for the dial-up mode, it is used to automatically switch on the power supply line of the transmission that is intended for the switching circuit,) its current is in accordance with the installed mode of the oscillating circuit formed by the adventuring DC network at the time of the exide ::; G (): about that;: but through a zero value. 2. The device according to claim 1, is different from the fact that in 1: as a container 1 i ii p d u to g and to carry a cumulative contour to use the jets natural capacity the lines and inductance of armature, arrays, throttles, vk.tyuchennogo in .TnOpno) food voltage high current. 3. The device according to claim 1, from 15 h and l of Hieecii in that the capacitance of the oscillatory smoker consists of the natural capacity of the line and the additional capacity included, and the inductance of the oscillating circuit consists of a smoothing droplet and an additionally inductance. 4. The device according to claim 1, differs from the fact that a mercury converter or another valve, flowing through half-waves of an oscillatory discharge of one sign, are used as short-circuiting devices. 5. Modifying the device, but clause 4, characterized in that as a short-circuit device a high-speed alternating current switch is used, which allows both half-waves of an oscillating discharge, or other mercury converters, or other gates, to be switched on by a double-wave circuit. 6. ycTpoiicTBO on n. 1, is distinguished by the fact that, as a short-circuit, it is equipped with a Marx arc valve, modifiable to allow both ways of transmission, and a second-class bit. 7. The device is about 1111. 4-G, characterized by the fact that ko;) retract: the closing device is included inside the winding of the smoothing throttle. 8. Device Io:; P. 4-6, characterized in that for the power output of the ivtotograph; the jaws are connected in series, or in parallel, or in parallel in series. 9. The device according to claim 8, wherein the short-circuit devices are connected between the two poles of the transmission line and the ground, and the disconnectors and chokes are included in each of the wires of the transmission line. 10. The device of claim 1, characterized by the use of the device for the automatic selection of the moment of locking the shorting device, with the benefit of preserving the transverse polarity of the transmission line. 11. The device according to claim 1, applied in branched direct current networks, which are used for chromium (;);,;; which shows the appropriate adaptations; o only on power supply; e11 suspenders; l n selectivity from 1 inhibitors is achieved by automatic ;: 1n transmission: pulses using jie.iC auto; technically on everything: o: oogate; 1; m; wires, connecting ; ; giggyping subgunts; ssel1i osta, nb: ml substations. 12.) o; kT5o on ai. 1 -10, O tp p h 10 s with TCii, which installed a pa; -the inlet substation to noTi; o3 and the connecting device on the EZi ectc also .iJi -.- i increase the stability of the system; with. in the action of azdistel. 13. Device on pi. 1 -12. about tl 1 hour and e of the bodies: that after s;) abatypap: to (;; n) tksz and I am hovering himgo ycTpoiicT; ;; The straightener automatically 1: rltkovremeppo locked locks in the sweater mode. at,   i-A-7V, --- E-r / C-a; G.Y ih-, J  j / l. l - V i kioJ I EL.SP1 I / .4 pK thick . 2,5 liicniM. - ii) / - 7 / -I FIG. 3 0 ( - 0/77 Zychity - From py {ftv / -: 7. FIG. five