Liquid rheostat with circulation of electrolyte

专利摘要:
The invention relates to electrical engineering, in particular, to designs of liquid rheostats for controlled start-up of electric motors (ED). The purpose of the invention is to expand the field of application and reduce the mass-gabrritic characteristics. The design of the rheostat is characterized by a bath with electrolyte, an electrolyte injection unit, the inlet pipe of which is sized in the electrolyte, the outlet pipes are located above each pair of electrodes (E). The input E is made as a pipe section and is connected to the terminal for connecting the load, and the output one is in the form of a cylindrical glass. The design feature of E is a zigzag path of electrolyte flow between OE. When the rheostat is in operation, this path provides a controlled effective circulation of electrolyte between OE, which ensures the start of the ED with a short-circuited rotor. After starting the ED, short the E with a contactor, and electrolyte is released from the electrode system. 11 hp ff, and ill. with w v)
公开号:SU1706405A3
申请号:SU853919838
申请日:1985-07-09
公开日:1992-01-15
发明作者:Бензадун Мишель
申请人:Мишель Бенэадун (FR)；
IPC主号:

专利说明:

The invention relates to electrical engineering, and more specifically, to liquid rheostats, mainly for controlled start-up of both squirrel-cage rotor motors (with a static start) and electric motors with slip rings (with a rotor start-up).
The purpose of the invention is to expand the field of application and reduce the mass and dimensional characteristics by performing an electric electrode of a certain configuration and features of the flow of electrolyte between them.
In Fig.1, the image of the hen liquid rheostat, isometric; figure 2 - section aa in figure 1; fig.Z - node I in figure 2; in fig. - section bb on, in fig. 5 is a view In figure 1; in fig. 6A, B, C, D are the differential options for the operation of a liquid rheostat, cross section; in fig. 7 is an embodiment of the distributor, g; ometri; Fig. 8 is another embodiment of the electrodes, transversely to the section; Fig. 9 illustrates the embodiment of the electrodes of Fig. 6; NZO.Y., 11 - variants of the electrodes,
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Obg zls.kgro 7 ° K s - ;: r. L, B, C defines each other. {Irkul.1, Io: - :: s; th volume 1 fj /; - ij .. chta 3, to them there is a link. .ch-) for. mch., sitro.GЈ) for despair, snm.2Nin r: -; g / l;;rus .;;;;; 1: S:; JOKVHBHC: I circulation on ct-g alg -troll n eliktroda.chi.
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The input electrode P tlk:;: e sodorgngs, :(; Yu5 (, trophy: IT 21, coaxially aligned with pipe 16, KO FCp3: i pre / i iT through it, but also, for example, hermetically welded.
Bi- s. Tupak SchA lower part 22 cut-: i Ti.iybi; 16 for ucero input electrode 8 can serve as a connectable
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LLL KSSGOGO ROSPOLO) SNIL UX (about 8 elbows to the superstructure 12 g of the outer side of the ip.j of the Crosswalk eHHTrt 21, the ends of two pairs of p-sg are welded; laid brackets 23, g; horny; -; for PG3bGoru-iMii, a pin L mm 25 for fastening to the longitudinal partition 13 of the superstructure 12, one of which coats serves as terminal 3, t-ici example, for connecting the brace.
NiL -1kdrmichesky wall 26 of Stockan 1 / rspog, C ena mainly on the middle of the annular cavity formed by the piezo-th surface of the tube ot pipe 1o and ontr-l; it has a cylindrical surface with an icanoid pipe of that element 21, with the discoveries The end of glass 17 is located at the bottom.
This end may be jagged, for example, as shown; triangular with; yr (::. chov 27.
Ps .. Ch1 is almost perfect. But at the bottom of a glass 17 1-m .. tangled pysgup 28 in M .ssioyugo pin, based on the condition of the body, achmmast almost the bottom of the glass G /, h end of the staples, example. butt end of a corpse, f6.
itchind ichyschpl popep.khnost (. choshi 20 C,;: lpt. T. t. h; e) and a few truchlchh o; , -; Г i with zlzoro-, approximately: v .-, z.k with; ru, with To i the wall of pipes:., I P-.ciio / O i: i iTo / it nose, Ho walls rpyvoVorTorv / ic. .cHTo 2 1.
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Electrode 7 is welded at one end by a console 29, the other end of which is welded to flange 30 with lateral lifts 31, one of which serves, for example, as terminal L for connecting to the phase of the power source.
The design of the electrodes 7 and 8 forms a circulating volume 15 for the flow of electrolyte 3 in the forward and reverse directions, and the cavity between the outer surface of the length of pipe 16 and the tubular element 21 forms the electrolyte holding capacity 32.
Node 33 is designed to control the electrolyte to be removed.
The assembly 33 is installed in the lower part of the holding vessel 32 and contains a movable valve $ k, which interacts with the seat 35 formed on the end portion of the threaded tip 36 connected by screwing into a threaded hole 37, made for this purpose in the bottom 38 of the sleeve-like tubular element 21
(fig.Z).
The valve 3 is provided with a spring 39, located between it and the console AO, for its permanent closure. The valve 3 is controlled through the rod M, to which the hinge k2 adjoins, mounted rotatably on the control shaft 3.
This shaft at one end has an earring kk, on which the core 5 of the electromagnet C 6 of the control can act (Figs. 1 and 5).
This electromagnet is attached to the base 7, which by means of a loop 8 (FIG. 5) is mounted movably in the vertical direction on the support flange 9, which is attached in one way or another to the longitudinal partition 13 of the setting 12.
The control of the position of the electromagnet 6 is provided by a thrust control 50 connected to the base 7, carrying the electromagnet, and locked in a predetermined position.
The shaft 3, which runs parallel to the longitudinal partitions 13 of the superstructure 12 with a smooth rotation in the transverse partitions 1 of this superstructure, is an oscil dll of all phases and has uniformly installed shackles one dll each phase.
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Electrodes 7 and 8 for all (. L, B and C have a common electrolytic bath 2 and a common unit (not designated) for pumping electrolyte, which consists of a pump 51 with a suction inlet 52 immersed in an electrolytic bath 2 rotated by an external motor 53.
Between the electrodes 7 and 8 of the phases L, B, C and pump 51, an electrolyte flow distributor 5 is installed.
The distributor 5 (figure 1) is made in the form of a cylinder placed horizontally in electrolytic zanne 2, the ends of which are closed.
The internal volume of this cylinder is divided into two compartments by a partition 55, passing approximately P of its horizontal diametral area, in which there are holes 56. In the cylinder there are lower and upper compartments 57 and 58, respectively.
The lower compartment 57 is connected to the outlet of the pump 51 by means of a tip 59 located in a part of the neunia in its middle zone, and a flexible pipe 60.
Through the tips 61, mounted in the upper part, to the right of which the partition 55 has no holes 56, and the sleeves 62 made of dielectric material, the upper compartment 58 is connected to the length of pipe 16 of the input electrode 8 of the various phases A, B, C by fitting the sleeve 62 a connecting tip formed for this purpose by the lower part 22 of the section of pipe 16. The distributor 5 (FIG. 7) is hollow, with its input bushing (tip 59) presto installed in the central zone of one of its ends, and the output sleeves ( 61) ra It limits with respect to the circle / Justi around its axis in the second end.
A movable contact 63 is connected to electrodes 7, 8 of each of phases A, B, C, which can electrically interconnect them to disconnect them.
 In the shown form of execution (FIG. -), each of the movable couplings 63 is slidably mounted on a control tag 6 between each restrictor 65, 6b of this rod and is intended for PG-Limo {:.: :( .. J
67, b
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In the proposed form, the performance is ha. 64 yi; | - M, - G1-; g (l ;; a. gsk reZb.- FIGHT, Neither KOiCP; .jr mustache TnNOnp. ID C FULLY
nkchs gyu C4-o. for the khichdgy phase L, B, S. sulkd 69, carrying podzhk-ks t 63 and se or brigands; tel ;; b55 66 education by screwed; f ce gpsk. Lock nut of these nuts, .. h lock on the specified position can be added lock nut
When the HocTi is reliable, it contacts with contacts I & 7, and 68, and the nut 65 is limited: the contact with contact 63, 65 allows you to adjust the pressing force to contacts 67, 6Р.
A ha of 6 i uprcap and, which in longitudinal direction runs parallel to the longitudinal partitions 13 of the superstructure 12, crosses the cross-sectional transverse П (-. Regoroz; and 1 of this superstructure, with the help of stools 71 installed for this chain on these secondary intersections 1 , AEDs for phases of A, B, C phases, and contacts 63, one for each of the specified phases L, B, and C, are shown on the 64 control circuit.
On traction 64 (FIG. 1), the control is activated to provide an EO return translational shift; a crank lever.
The tool for controlling this lever contains the arctograph 73 or and / arnpris parallelogram, one of the vertices 74 of which is floorwheel, the crank lever 72 is attached to the other Vbrpime 75, the linkage is with 6 controls; Yam and nepedgnn io; bracket 7i.
Prugs; a 77, stretching men-d of vertices amm 73, / 4 pantograph 73 attracts to cc-g. Dviih.ioP orchest 71 neol u u 7IJ, with which it connects about poured from .hr; HC „79 is; About rioiiTornoto / 3 go and p :. pos-G, I am her; yep oh elektrmagkito
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When n: iknostn, TH rheostat 1 is located on the state O H / KJI. (before the gods), tectrode; 1 7, 8 each kz a. D., 1, C n; hl ;: i; n p, -: sg.to n.-1n from electrolyte 3, containing state with zlS-trolignic panne 2, to l1 / then schetle-sski shown in (|) yoke (; The terminal of one of the phases L.V., S. Simultaneously, the valve 3 is completely closed.
In addition, electrone-80s (81, controlling the pantograph 73, in the case of r is excited so that the spring 77 holds it in the retracted position, in which 72 tons of the 64-arm contraction arm are in this position in the rear position holds each subs: shny contact 63 with the help of its corresponding limiter 65 at a distance from the fixed contacts 67 and 68.
To eliminate the excitation of the arc, the spectroscopes 7 and 3 (Fig. 8) should be set to | The bottom of the stacked tubular element 21 is an annular bowl 82 made of a dielectric material, having two coaxial partitions 83 and 8.
In the version shown in phi; .9, each of the electrodes 7 and 8 is additionally equipped with the first and second sets of coaxes; The first electrode is hermetically interconnected by an annular metal base 87, and the ends of the second set sleeves 86 on the side of the second electrode outlet opening are with the bottom of this electrode, made in the glass zide, with the first and second sets sleeves located. alternately.
The number of sleeves 85, 86 in the sets should be procedural.
Such a horse g hand q:; g, allows you to increase the amount of skipped data.
Electrodes 7 and 8 are one and so ;;; с) -, the beat is partially fulfilled, and njK .ojibHr. ; soorkp pro. . Or a pipe that, uch; yg m rounded - the nature of the cross section ToiiHX n,)) about / ju Klc tubes, leads to the prev1. t V | .Ch; NG -.- “I wish to contact them with electrolyte. This option is shown in figure 10.
They can also be performed by winding wires or tubes, kk shown in FIG. 11.
In either case, tubes can be used to circulate coolant.
Such designs of the electrodes 7, 8 allow an increase in the amount of current to be passed.
According to another embodiment, the electrodes, 8 or one of them, may be partially made of a lattice stork metal with the exception of their outer shell.
In this case, two advantages are provided: on the one hand, the contact surface increases, which, with the same current, allows electrodes to respond one to the other and, therefore, increase the voltage, while reducing the critical voltage threshold, on the other hand, providing electrolyte There are two circulation channels: one between the electrodes, the other through the walls of these electrodes, which mainly contributes to the degassing of this electrolyte, i.e., the attraction of microbubbles that appear when it comes in contact with the indicated electrodes.
In another embodiment, the electrodes 7, C, or one of them are made by molding or stamping.
In addition to this, it is possible to install between the electodes along their entire height two walls of insulating material forming a screen, one of which is fixed and the other is mobile and adjustable in position, and in which holes are made with the possibility of alignment. When these holes are displaced, insulation takes place, and when they are opposite one another, conductivity takes place; thus, it is possible to predominantly control the exchangeability between the electrodes regardless of the voltage 2. The movable contacts 63 are preferably removable.
Each of them can be placed with the possibility of removal on the bracket 33, (about the shape of the frame, which replaces the limiters 65, 6b and allows the n-tang congluct 63 to insert about this case on this case (Fig. 12)
In the embodiment 1 shown in Fig. 13, the output electrode 7 of each phase is made simply as an output stud, preferably behind the protrusion 28 that ends, and the connected input electrode 8 is in the form of a simple tube placed with a gap around the specified stud.
The output electrode 7 is directly placed on the dielectric plate 89 installed in the upper part of the superstructure 12,
It is screwed into this plate 89, and terminal h is an eio simple threaded extension that passes through this plate.
On the bed 89 also placed the input electrode 8, and the specified electrode is connected by a bracket 23 with a terminal 90.
Around the input electrode 8, the plate 89 has a tubular continuation 91 protruding on its lower surface, which forms around the output electrode 7, together with a ring 92 forming the base of the electrode, a rounded inner annular surface 93 covering the corresponding portion of said input electrode 8.
The superstructure 12 itself contains around the previous tubular extension 51 a guide tube 9 of insulating material, into which the specified tubular continuation 91 is inserted, and which is coaxially with the electrodes 7 8 loaded into the electrolyte 3 contained in a 2 "bath
On the side, this guide tube 9 has a tide 95 for passing the bracket 23 and for accommodating the corresponding outlet 90.
To the right of this tide 95 at least one channel 96 passes through the tubular continuation 91 (FIG. 13).
In this embodiment of the electrodes 8, the contact control actuator is shown schematically in FIG. In addition to electrodes 7, 8 and terminals k, 5, 6 and 9, U, 11, for each phase L, B, C, plate 89 is also provided with sub-contacts 63 and corresponding fixed contacts 67, 63 for each phase.
These contacts are in direct electrical communication with
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with g: o,:.; it is possible; be1 according to / ,; about,-, -.:,. by g os1 nr p; lg, ft pn, -. ;, 3 / .;./. , OD J, to Komsrui psdsog, /, / HUH;:;..: ,. ::. IG, pr.plus. ;; -;.:; Hang out and about: tupgs: 6
Ta -; - m cut-off k instead of the SOK location of the nodes of the threat - are located in that - the same case as the electrodes, ksm-plzkt, consisting of distinctive honkltos and their means - ;;:; ---, pre i miss a time. and Ber.h .;: s; P of part of superstructure 12 on plastic & 9, the carrier is indicated: ;; -: e elect1; g; d; thereby, access to this kit 1-1 is facilitated by its isolation from the ash-trolite 1,
In this case, only one electromagnet can be controlled by controlling the mobile con Ј1 Ktl ;. “and thanks to the corresponding configuration of the EE angular separation of the corresponding fitting and the points of the earring: core 100 at the appendage, i.e. . when the springs are attached / y: not close to these sub-plots; and to their contacts, k, under the blue load, the force on the specified: the inyne core 100 is closely connected with the depth of the transducer - | t to minimize rzz - -: cfr electromagnet upr-: spechi and i.-ritichskog; neplpeiii waste konktktoz, arising from the invasion of ate y; other nx x ngpr.
Acceptable for such a phase is allowed for each phase, for example, in the form of a triangle.
The unit for injection of kgrol fr-t K Gl.kht Sat y1L YuL :: s: - | and ls sa.Gl Alky.
tf .or- i ofiiuie ptool; and 62 could} and
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gaza i .iiii ,, ip krchcheskoy gagma with Edon /,.-:og tti Tsmsoy as silmko1 :, g; ri-; p. | r service-.v.c case, with /. (: px (-l; .-nyi gryktro.py, (: m; s sociotestvo: 1),:;, in a way germg.tizigm.
Arrange for R.-, O from l t.t. SLS.D. way,
. 1D1 power source kgposh) si klm .. :: m h. 5 and and, z fa-; -. Elastic Strad 102 - to glued. h - msm U, 10 g, P.
It turns on the electrodynamic / liquid block 53 block :: a pumping electrolyte), k; the result of the distributor 5-. ; . V, r. Dielectrics rush into the input electrodes of 0. providing fi — powerfully & electr: c, and the volume of the CcViLiM decrease: conpo. mg:; do elektrodroamm 7 8, when (ohm the resistance o decreases quickly enough d. minimum. that pg-zolot ot limited o in time starting then ".
Zigzag passage; epekrolmte shown in the figures by arrows.
The degree of y; .. less than 1 (resistance is determined by the intensity of the work of K.-icoca and can be regulated by valve 3.
The pointed tip 20 provides a smooth flow of electrolyte.
When the electric motor 1C2 gains sufficient momentum through the excitation of electromagnets 80, 81 pango. Oaf 73 goes to the open positions and the hydeyno contacts 63 pin to the fixed contacts 67, o8, which leads to a short-circuited:;. electrodes 7; 8, i.e. shutdown rheostat about
After that, the electrolyte residues between olk;: o sg.n 7, 3 is eliminated by the sprint and empowering - klgpon 3 ;.
Analogous supports: gns can (t i-CMOJi.i3of .a.i-j and with an electric power supply for its adjustable TopdO: enm.
When tax, og, S;: o: -;. trego.ch- NYR .h. | . 7 .lch, .- ts1t) “- according to 1 / KMjr; C i: h.:; arc and obspsps- 4M3c j i f PLo1; r.Tf,:; | -1: L1 ..
Call- i .cjtan 4ai: ia 82 provides
pC3n. v. y..ep, i, -; : c; SOG. IGLG
; cho1chdy .- - nonkm,
In the case of execution of an electrodome according to flash .13, the presence of pipe 3 increases the more dramatic increase in the electrical diode between the electrodes when power is applied.
Channels 96 are needed to eliminate gas, as pipe 9 is immersed in an electrolyte.
Such a design of the electrodes 7, 8 is advisable for installations of small power, since the dimensions of the rheostat are small.
The rheostat of the proposed design allows the connection of electric motors in E-Oriant to a star or a triangle, ensures operation without heating the power supply, the location of the electrodes outside the electrolyte and using 1 current density of up to several A / cm. Moreover, the requirements for the contact circuit design are significantly reduced.

权利要求:
Claims (8)
[1]
1. A liquid rheostat with electrolyte circulation containing
At least three pairs of first and second electrodes spaced apart one another, the first of which are provided with a terminal for connecting the load, and the second with a terminal for connecting to a power source, an electrolyte tank in which the outlet pipes of the unit for pumping electrolyte, and a control unit, characterized in that, in order to expand the scope of application and reduce the weight and size characteristics, the pairs of the first and second electrodes are made and located one relative to the other with aniem circulation cavity therebetween for forward and reverse flow of electrolyte from both sides of the first electrode, wherein each first electrode is disposed over the outlet nozzle unit for injecting the electrolyte, and second electrode-- above the reservoir for the electrolyte.
[2]
2. The rheostat pop. 1, which differs from the fact that the first and second electrodes are made and arranged to form series-connected cavities for the direct and surrounding flow of electrolyte in adjacent cavities.
[3]
3, The rheostat according to claim 2, wherein the first electrode is made in the form of a pipe located vertically, and the second electrode is in the form of a cylindrical cup, the inner cylindrical surface of which is coaxially enclosed pipe, with the bottom of the glass is located with a gap above the outlet of the pipe,
[4]
. The thermostat according to claim 3, about the t of l and the fact that at the bottom of the second electrode, made and in the form of a glass, coaxially with the outlet hole of the first electrode, made in the form of a piece of pipe, has a pointed protrusion.
[5]
5. The rheostat according to paragraphs 3 and 4, that is, the fact that the end of the second electrode, made in the form of a glass, on the side opposite to the bottom of the glass, is serrated.
[6]
6. A rheostat according to claims, characterized in that each electrode is additionally provided with a first and second set of coaxially arranged metal bushings, with the ends of the first set bushings on the side of the inlet opening of the first electrode hermetically interconnected by an annular metallic base, the second set from the outlet of the second electrode with the bottom of the second electrode, made in the form of a cylindrical glass, while the sleeve of the first and second sets are alternately.
[7]
7. A rheostat according to claims 1 and 2, characterized in that the circulation cavity for the flow of the electrolyte is provided with a unit for its controlled removal.
[8]
8. The rheostat according to claim 6, characterized in that it is additionally provided with an annular cup made of dielectric material located on a ring-shaped metal base coaxially with the first electrode, the annular cup being made in the form of inner and outer cylinders with a common base, hermetically joining them lower the ends, with the common base located n ;; ring (t //
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RU2001107852A|2003-03-27|ELECTRIC CATHETER TO ENSURE STENOSIS OF A VESSEL HAVING TWO SETS OF DIVERSING ELECTRODES

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JP2006034087A|2006-02-02|Terminal part

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JPH07154945A|1995-06-16|Device for electrical and mechanical connection of conductorpart and supply and evacuation of cooling liquid

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DE2514016B2|1978-02-23|ELECTRIC VIBRATION COMPRESSOR

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DE102007052959A1|2008-09-18|Portable power generating device, fuel and air supply device for the portable power generating device, DC powered micro-motor for the portable power generating device, and operating method thereof

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CN1820338A|2006-08-16|Method and device for power braking with a fluid-operated liquid metal current switch

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CN207977177U|2018-10-16|A kind of solenoidal skeleton

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KR840004657A|1984-10-22|Arrangement method of electrode for electric arc

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WO2020200339A1|2020-10-08|Appliance for stimulating a human erogenous zone with a variable pressure field

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TWI407949B|2013-09-11|Massage apparatus

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DE3510981A1|1985-10-31|Vacuum switch, exciter contact arrangement

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CN102017061B|2013-03-27|Electrode for ultra-high pressure mercury lamp and ultra-high pressure mercury lamp

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JP2004357452A|2004-12-16|Method for manufacturing reinforcing insulation block for power cable

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JPH1069933A|1998-03-10|Connector connecting device and its contact holding structure

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US1379776A|1921-05-31|Ozonizer

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US5719371A|1998-02-17|Plasma torch with integrated independent electromagnetic coil for moving the arc foot

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KR960012394B1|1996-09-20|Liquid fuel feeding method and liquid fuel burning apparatus

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CN209658088U|2019-11-19|A kind of pair is filled high voltage direct current relay

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US887539A|1908-05-12|Movable plating apparatus.

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JP3912784B2|2007-05-09|Gas circuit breaker

同族专利:

---

公开号 | 公开日

---

FI89113B|1993-04-30|

---

FR2567678B1|1986-12-26|

---

FI89113C|1993-08-10|

---

CA1246702A|1988-12-13|

---

BR8503279A|1986-04-01|

---

FI852686L|1986-01-11|

---

FI852686A0|1985-07-08|

---

EP0171317B1|1989-03-08|

---

AU581908B2|1989-03-09|

---

JPS6193602A|1986-05-12|

---

ES8608219A1|1986-06-01|

---

ES545055A0|1986-06-01|

---

FR2567678A1|1986-01-17|

---

EP0171317A1|1986-02-12|

---

DE3568664D1|1989-04-13|

---

AU4473585A|1986-02-20|

---

ZA854996B|1986-02-26|

---

US4670735A|1987-06-02|

---

KR860001453A|1986-02-26|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

US1409670A|1919-06-09|1922-03-14|Westinghouse Electric & Mfg Co|Control apparatus|

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DE816436C|1949-05-17|1951-10-11|Siemens Schuckertwerke A G|Adjustable fluid resistance|

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US2602125A|1949-12-31|1952-07-01|Gen Electric|Liquid rheostat|

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US2632077A|1951-06-23|1953-03-17|Allis Chalmers Mfg Co|Venting arrangement for liquid rheostats|

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CH442473A|1965-08-17|1967-08-31|Oerlikon Maschf|Electrical switch in which an electrolyte of variable concentration is located in the isolating gap during the switching process|

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FR1549390A|1967-10-06|1968-12-13|

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FR1566687A|1968-03-27|1969-05-09|

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DE2415089B2|1974-03-28|1976-11-25|Siemens AG, 1000 Berlin und 8000 München|MULTI-PHASE LIQUID RESISTANCE DEVICE|

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US4039854A|1976-04-16|1977-08-02|Maryland Shipbuilding & Drydock Company|Liquid rheostat system|

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FR2395578B1|1977-06-21|1980-04-04|Bensadoun Michel|

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US4232998A|1978-03-17|1980-11-11|Osgood George M|Method and apparatus for regulating electrolyte solution level in a liquid rheostat|

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FR2436484B1|1978-09-13|1981-10-02|Bensadoun Michel|

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FR2532101B1|1982-08-23|1985-03-29|Bensadoun Michel|FR2634578B1|1988-07-21|1990-10-19|Cim Starters|ELECTROLYTE CIRCULATION LIQUID RHEOSTAT|

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US5107209A|1990-09-04|1992-04-21|Tatsumi Corporation|Power supply testing system for non-utility power generators|

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US5250924A|1991-11-05|1993-10-05|Tatsumi Corporation|Power supply testing system for non-utility power generators and so on|

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CN100397771C|2005-12-05|2008-06-25|何起军|Starting speed regulator of liquid resistance in use for squirrel cage motor|

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CN100424790C|2006-03-24|2008-10-08|尚勤贵|Hydraulic start stepless speed regulating operator of cage motor|

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AU2009309253A1|2008-10-30|2010-05-06|Van Zyl, Dorothea|A dropped charge protection system and a monitoring system|

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CN101841283B|2009-12-25|2012-02-22|湖北万洲电气集团有限公司|Whole-sealing liquid resistance starter|

---

CN103759053B|2014-02-11|2016-01-20|尚勤贵|A kind of outlet valve|

法律状态:

优先权:

---

申请号 | 申请日 | 专利标题

---

FR8410944A|FR2567678B1|1984-07-10|1984-07-10|LIQUID RESISTANCE RHEOSTAT WITH ELECTROLYTE CIRCULATION|

---