CN203387140U - Equipotential direct-current-loaded electrified ice melting device - Google Patents
Equipotential direct-current-loaded electrified ice melting device Download PDFInfo
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- CN203387140U CN203387140U CN201320539169.5U CN201320539169U CN203387140U CN 203387140 U CN203387140 U CN 203387140U CN 201320539169 U CN201320539169 U CN 201320539169U CN 203387140 U CN203387140 U CN 203387140U
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Abstract
The utility model discloses an equipotential direct-current-loaded electrified ice melting device which is characterized by being composed of an insulating platform, an electrical assembly installed on the insulating platform, a power supply side insulating switch, a power supply side breaker, a current transformer, a voltage transformer, an ice melting transformer, a direct-current side multi-pole isolating switch, a direct-current side breaker, an AC and DC screen and a remote control measurement and protection control screen, wherein the power supply side insulating switch, the power supply side breaker, the current transformer, the voltage transformer, the ice melting transformer, the direct-current side multi-pole isolating switch, the direct-current breaker, the AC and DC screen and the remote control measurement and protection control screen are installed outside the insulating platform and connected with the electrical assembly. The electrical assembly mainly comprises a current conversion device, an ice melting current regulator, a platform power supply transformer, a synchronous voltage transformer, a rectifying device, a remote control measurement and control protection device, a platform power supply transformer protector, a high voltage isolating current transducer, an ampere meter, a high voltage isolating voltage transducer and a voltmeter, wherein the current conversion device, the ice melting current regulator, the platform power supply transformer, the synchronous voltage transformer, the rectifying device, the remote control measurement and control protection device, the platform power supply transformer protector, the high voltage isolating current transducer, the ampere meter, the high voltage isolating voltage transducer and the voltmeter are mutually connected. The equipotential direct-current-loaded electrified ice melting device is easy to operate, solves the problem that electrified ice melting cannot be achieved currently, and therefore ice melting can be achieved on AC and DC split circuits with different voltage grades and a single double-circuit line.
Description
Technical field
The utility model relates to for the deicing device on electric wire, is that a kind of equipotential is carried the charged deicing device of direct current specifically.
Background technology
Supply line be subject to winter during icing the most important be exactly as early as possible the ice-out on circuit.As melted not in time, the ice load on wire can be more and more heavier, to wire, steel tower, electric pole and gold utensil, all can bring certain mechanical damage, when serious, can break, shaft tower, cause large-area power-cuts, cause heavy losses to industrial and agricultural production, people's lives are brought difficulty.Used in the past alternating current short circuit deicing device to want tandem link, complicated operation, and very large to system shock.DC de-icing device has solved the shortcoming of AC ice melting device at present, the ability ice-melt but these two kinds of devices all will have a power failure, if meet the situation of disliking gesture weather need continuous ice melting, cause like this interruption duration to postpone, cause damage to power supply enterprise itself and industrial and agricultural production, people's lives are made troubles.
The utility model content
The utility model is to provide a kind of equipotential that can realize deicing processes that can round-the-clockly not have a power failure to carry the charged deicing device of direct current, to solve the shortcoming and deficiency in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Equipotential is carried the charged deicing device of direct current, is characterised in that, it is arranged on the electric component on insulated platform mainly by insulated platform, and is arranged on the mains side isolating switch that insulated platform is outer and be connected with electric component, the mains side circuit breaker, current transformer, voltage transformer, the ice-melt transformer, the multipole isolating switch of DC side, the DC side circuit breaker, the alternating current-direct current screen, remote metering protection control flow forms, and described insulated platform is placed in airtight casing (or house) central authorities, and with box body wall, certain insulating safety distances is arranged, and mainly comprises the panel of being made by steel plate, the channel-section steel skeleton of being made by channel-section steel, support insulator, insulation cushion, its channel-section steel skeleton is arranged on the upper end of support insulator, the lower end of support insulator is fixed on the ground basal plane, the panel level is fixed on the channel-section steel skeleton, insulation cushion is positioned on the panel on casing turnover emergency exit doorway, described electric component mainly comprises interconnective current converter, ice melting current adjuster, platform power transformer, the synchronizing voltage instrument transformer, rectifying device, the remote control measuring and controlling protective device, platform power transformer protector, high pressure isolation current transducer and ammeter, high pressure isolation voltage transmitter and voltmeter, its electric component is connected by the phase line in the three-phase high-voltage power supply line of DC side circuit breaker and the multipole isolating switch of DC side and required ice-melt.
In the utility model, also be provided with the emergency exit travel switch on described casing emergency exit doorway, its emergency exit travel switch is connected with remote metering protection control flow.
The utility model is for handling safety, and described remote metering protection control flow and remote control measuring and controlling protective device are equipped with remote controller, and remote control can take remote measurement.
Specifically, in the process of using, each phase line in three-phase high-voltage power supply line all needs to connect a utility model and carries out ice-melt.
Operation principle: the utility model utilizes the resistance on DC ice-melting to make the DC ice-melting heating by direct current, icing is melted, utilize ice-melt step down side insulation special processing, with the equipment of ice-melt transformer low voltage rear flank, be placed on insulated platform, making the device of placing on the relative ice-melt transformer of operation High AC voltage on DC ice-melting and insulated platform is the equipotential relation, make device that the operation high-voltage ac current on DC ice-melting places on ice-melt transformer and insulated platform without alternating current path, device on ice-melt transformer and insulated platform is in the equipotential situation works, thereby reach the purpose of charged ice-melt.
Beneficial effect: the utility model has solved at present a difficult problem that can not electrical ice melting, can be to alternating current-direct current division circuit and the single double-circuit line charged ice-melt of different electric pressures.Because it has multipole isolating switch, the circuit for binary fission with upper conductor, can carry out ice-melt in batches, thereby reduce greatly ice-melt power, saved cost of investment.This device is simple to operate, owing to adopting remote control and telemetering technique, thus safe and reliable, for supply line's safe operation provides reliable assurance.Due to the ice-melt that do not have a power failure, for producing, workers and peasants provide reliable power supply guarantee, greatly facilitate the people's life.
The accompanying drawing explanation
Fig. 1 is overall structure vertical view of the present utility model;
Fig. 2 is overall structure left view of the present utility model;
Fig. 3 is overall structure front view of the present utility model;
Fig. 4 is electric component layout plan of the present utility model;
The connection partial enlarged drawing that Fig. 5 is parts 18,19 and three-phase high-voltage power supply line.
Annotate: accompanying drawing 1-3 is the schematic diagram after the dismounting body structure.
Figure :1 - melting ice transformer , 2 - , 3 commutation device - sync voltage transformer , 4 - , 5 ice-melting current regulator - the platform power transformer , 6 - platform power transformer fuse , 7 - fairing , 8 - , 9 remote monitoring protection - safety gate limit switch , 10 - high voltage isolation current transducer and ammeter , 11 - high voltage isolation voltage transmitter and voltmeter , 12 - current transformer 13 - supply side circuit breaker , 14 - , 15 voltage transformer - supply side isolation switch , 16 - ,17 -screen remote control and measurement - DC -screen , 18 - DC-side multi-pole isolation switch 19-0 - DC circuit breaker , 20 - ,21 panel - channel frame ,22 - supporting insulator 23 - cabinet floor 24 - insulation pad 25 - electrical components 26 - three-phase high-voltage power lines 27 - insulation platform E, F - melting ice at both ends of the short-circuit point line ; 1'- 6 ' , respectively, on behalf of the three-phase high-voltage power lines to split each phase of six wires melting ice line ; ① - ④ representing the DC side circuit 4 different wiring contacts 's ; ⑤ -
representing the DC side multipolar isolation switch 12 different wiring contacts ; ∽ 1 is melting ice phase AC power transformer from substation ; ∽ 2 from station three-phase power transformer .
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail as follows:
As shown in accompanying drawing 1-4, equipotential is carried the charged deicing device of direct current, is characterised in that, it is arranged on electric component 25 on insulated platform mainly by insulated platform 27, and is arranged on the mains side isolating switch 15 that insulated platform is outer and be connected with electric component, mains side circuit breaker 13, current transformer 12, voltage transformer 14, ice-melt transformer 1, the multipole isolating switch 18 of DC side, DC side circuit breaker 19, alternating current-direct current screen 17, remote metering protection control flow 16 forms, and described insulated platform is placed in airtight casing (or house), and with box body wall, certain insulating safety distances is arranged, and mainly comprises the panel 20 of being made by steel plate, the channel-section steel skeleton 21 of being made by channel-section steel, support insulator 22, insulation cushion 24, its channel-section steel skeleton is arranged on the upper end of support insulator, the lower end of support insulator is fixed on tank floor 23, the panel level is fixed on the channel-section steel skeleton, insulation cushion is positioned on the panel on casing turnover emergency exit doorway, described electric component mainly comprises interconnective current converter 2, ice melting current adjuster 4, platform power transformer 5, synchronizing voltage instrument transformer 3, rectifying device 7, remote control measuring and controlling protective device 8, platform power transformer protector 6, high pressure isolation current transducer and ammeter 10, high pressure isolation voltage transmitter and voltmeter 11, its electric component is connected by the phase line in the three-phase high-voltage power supply line of DC side circuit breaker 19 and the multipole isolating switch 18 of DC side and required ice-melt, also be provided with emergency exit travel switch 9 on described casing emergency exit doorway, its emergency exit travel switch is connected with remote metering protection control flow, described remote metering protection control flow and remote control measuring and controlling protective device are equipped with remote controller, and remote control can take remote measurement.Each phase line in three-phase high-voltage power supply line all needs to connect a utility model and carries out ice-melt.
In accompanying drawing 4, the functions and principles of each parts is as follows:
∽ 1 is the three-phase alternating-current supply of ice-melt transformer, from the transformation station.
∽ 2 is from the three phase mains become for station.
1, the effect of ice-melt transformer 1 is that the three-phase alternating voltage that electrical network is provided is transformed into the required three-phase working power of current converter.Ice-melt transformer 1 is special manufacture, and the mains side of ice-melt transformer is high-pressure side, and load side is low-pressure side.All elements of the low-pressure side of ice-melt transformer 1 are all to make by the insulation standard of the ac high voltage value of this DC ice-melting operation, because low-pressure side communicates with the ac high voltage of DC ice-melting operation by current converter, require the insulation of the low-pressure side of ice-melt transformer that high voltage bearing ability is arranged, so, ice-melt step down side insulating requirements is high more a lot of than high-pressure side, needs special manufacture.
2, current converter 2 is that the three phase mains that the ice-melt transformer is provided is rectified into direct current, and the adjusting by the ice melting current adjuster reaches the required ice melting current of DC ice-melting.
3, synchronizing voltage instrument transformer 3 is that voltage after the ice-melt transformer pressure-reducing offers ice melting current adjuster 4 as synchronizing signal after step-down again.
4, ice melting current adjuster 4 is to process by the synchronizing signal of synchronizing voltage instrument transformer with from the control signal process of remote control measuring and controlling protective device, to current converter 2, sends conditioning signal, makes the direct current output of current converter reach required ice melting current.
5, the platform power transformer 5, are the voltage after the ice-melt transformer pressure-reducing is offered to the required whole source current of rectifying device 7 after step-down again through platform power transformer protector 6.
6, platform power transformer protector 6 is as platform power tranformer protection use, when overload or short circuit occur the platform power transformer, shields.
7, rectifying device 7 is to provide required DC power supply by the DC power supply after the three-phase alternating-current supply rectification of platform power transformer to ice melting current adjuster 4, remote control measuring and controlling protective device 8, current converter 2, high pressure isolation current transducer and ammeter 10, high pressure isolation voltage transmitter and voltmeter 11.
8, the effect of remote control measuring and controlling protective device 8, the one, by high pressure isolation current transducer and the ammeter 10 recorded, high pressure isolation voltage transmitter and voltmeter 11, the relevant data of converter device 2 sends to remote metering protection control flow 16 by processing, go back raw parameter by remote metering protection control flow 16 again, relevant parameters is shown, the 2nd, protect the control signal that control flow 16 sends immediately to send ice melting current adjuster 4 to remote metering, ice melting current adjuster 4 is controlled current converter 2 immediately, make the required direct current of current converter 2 output DC ice-melting.
9, emergency exit travel switch 9 is to pass to remote metering protection control flow 16 when emergency exit its contact point signal when opening; send trip signal by remote metering protection 16 pairs of mains side circuit breakers 13 of control flow and DC side circuit breaker 19 and make its two sides switch trip, guarantee personal security.
10, high pressure isolation current transducer and ammeter 10, be to become and give remote control measuring and controlling protective device 8 after the ice-melt direct current is isolated by high pressure, and ammeter shows on the spot.
11, high pressure isolation voltage transmitter and voltmeter 11 are to become and give remote control measuring and controlling protective device 8 after the ice-melt direct voltage is isolated by high pressure, and voltmeter shows on the spot.
12, the effect of current transformer 12 is that instrument shows the high-pressure side alternating current of required ice-melt transformer 1 for remote metering protection control flow 16 provides the current protection parameter.
13, the effect of mains side circuit breaker 13 is power supplys of break-make ice-melt transformer, is the executive component of protection ice-melt transformer and ice-melting device simultaneously.When protective circuit is moved, by remote metering, protect control flow to make 13 tripping operations of mains side circuit breaker, connection is jumped DC side circuit breaker 19 simultaneously, thereby has protected ice-melt transformer and other ice-melting device.
14, the effect of voltage transformer 14 is that instrument shows required high-pressure side alternating voltage for remote metering protection control flow 16 provides the alternating voltage Protection parameters.
15, the effect of mains side isolating switch 15 has been circuit on-off actions, have significantly switch on and off beautiful, easy access.The load side grounding switch that can close during maintenance, to guarantee safety.
16, remote metering protection control flow 16 is remote measurement, the remote control of whole deicing device, the critical elements of protection; Remote metering protection control flow 16 provides DC power supply by alternating current-direct current screen 17.The effect of remote metering protection control flow 16: one, remote control measuring and controlling protective device 8 is received and dispatched to measurement, control Protection parameters; Two, mains side isolating switch 15, mains side circuit breaker 13, the multipole isolating switch 18 of DC side, DC side circuit breaker 19 are carried out to trip protection, and trip and close a floodgate with remote control on the spot normally; Three, electric current, voltage and the control parameter gathered shown and remote measurement.
17, the AC power of alternating current-direct current screen 17 is from station service; alternating current-direct current screen 17 alternating currents that station service is sent here are transformed into DC power supply, to mains side isolating switch 15, mains side circuit breaker 13, remote metering protection control flow 16, the multipole isolating switch 18 of DC side, DC side circuit breaker 19, provide and control protection and operating power.
18, the multipole isolating switch 18 of DC side has an obvious break-make point, and easy access is convenient, and DC power supply side joint ground disconnecting link will close during maintenance.Because the multipole isolating switch 18 of DC side is comprised of a plurality of single-pole switchs, by every phase bundle conductor, how much configure.Take one pole independent operation mode, favourable like this selection, selection is that every two bundle conductors are selected ice-melt successively by how much symmetric modes.The stress balance that is conducive to like this insulation supporter frame of bundle conductor and hardware and bundle conductor, avoid damaging.This ice-melting mode successively can greatly reduce the capacity of ice-melt transformer, on each bundle conductor that is connected on required ice melting circuit that the other end of the multipole isolating switch 18 of DC side is corresponding, and is connected on the centre of the two ends short dot of required DC ice-melting.
19, the effect of DC side circuit breaker 19 is ice-melt power supplys of break-make DC ice-melting; when moving, protective circuit protect control flow to make its DC side circuit breaker 19 tripping operations by remote metering; connection is jumped mains side circuit breaker 13 simultaneously, thereby has protected ice-melt transformer and ice-melting device.
20, insulated platform: insulated platform is placed in airtight casing, mainly comprise the panel 20 of being made by steel plate, the channel-section steel skeleton 21 of being made by channel-section steel, support insulator 22, insulation cushion 24, its channel-section steel skeleton is arranged on the upper end of support insulator, the lower end of support insulator is fixed on tank floor 23, the panel level is fixed on the channel-section steel skeleton, insulation cushion 25 is positioned on the panel on casing turnover emergency exit doorway, the doorframe left and right sides device of emergency exit two emergency exit travel switches 9.When mounted, insulated platform and box body wall guarantee that certain insulating safety distances will be arranged.
Explanation of the present utility model:
One end of mains side isolating switch 15 is connected with the transformer station power supply, the other end is connected with the high-pressure side of voltage transformer 14 with mains side circuit breaker 13, during maintenance can with connect disconnecting link and be connected, the direct current supply line that is connected to alternating current-direct current screen 17 is separately arranged, be connected to the control line of remote metering protection control flow 16; The high-pressure side of voltage transformer 14 is connected on the centre of mains side isolating switch 15 and mains side circuit breaker 13, and low-pressure side is connected to remote metering protection control flow 16; One end of mains side circuit breaker 13 respectively with mains side isolating switch 15, the high-pressure side of voltage transformer 14 connects, the other end send the other end of device to be connected with an end and the change of high pressure isolation voltage of Current Mutual Inductance, the direct current supply line that is connected to alternating current-direct current screen 17 is separately arranged, be connected to the protection control line of remote metering protection control flow 16; Current transformer 12 high-pressure side one ends are connected with an end of mains side circuit breaker 13, and the other end is connected with the high-pressure side of ice-melt transformer, and the electric current secondary line of low-pressure side is connected to remote metering protection control flow 16; The high-pressure side of ice-melt transformer 1 is connected with the high-pressure side of current transformer one end, and low-pressure side is connected with current converter 2, platform power transformer protector 6, synchronizing voltage instrument transformer 3, and the protective wire that is connected to remote metering protection control flow 16 is separately arranged; The alternating current source of current converter 2 is connected with the low-pressure side of ice-melt transformer 1, the anodal contact with in DC side circuit breaker 19 of output DC side 1., an end of high pressure isolation voltage transmitter and voltmeter is connected, negative pole is connected with an end of high pressure isolation current transducer and ammeter, the direct current supply line that is connected to rectifying device 7 is separately arranged, be connected to the measuring and protection control line of remote control measuring and controlling protective device 8, be connected to measurement, protection, the control line of ice melting current adjuster 4; The low-pressure side that platform power transformer protector 6 one is connected to ice-melt transformer 1 is connected with the high-pressure side of synchronizing voltage instrument transformer, and the other end and platform power transformer 5 high-pressure sides link; The high-pressure side of platform power transformer and platform power transformer protector 6 link, and low-pressure side is connected to rectifying device 7; The high-pressure side of synchronizing voltage instrument transformer 3 is connected with an end of platform power transformer protector 6, and low-pressure side is connected with ice melting current adjuster 4; Ice melting current adjuster 4 is connected to the synchronizing voltage of synchronizing voltage instrument transformer 3, and the direct current supply line that is connected to rectifying device 7 is separately arranged, and is connected to the measuring and protecting control line of remote control measuring and controlling protective device 8; Remote control measuring and controlling protective device 8 is controlled protective wire with the measurement in ice melting current adjuster 4 and is connected, the measuring and protecting control connection line of current converter 2, be connected with the power line of rectifying device 7, be connected with high pressure isolation voltage transmitter and voltmeter 11, high pressure isolation current transducer and ammeter 10; 4. being connected with an end of high pressure isolation current transducer 10 in DC side circuit breaker 19, in DC side circuit breaker 19 3. with the multipole isolating switch of DC side
connect, in DC side circuit breaker 19 1., 2. respectively with the positive pole of current converter and the multipole isolating switch of DC side in
be connected; In the multipole isolating switch of DC side
with 2. being connected in DC side circuit breaker 19, in the multipole isolating switch of DC side
with 3. being connected in DC side circuit breaker 19, in the multipole isolating switch of DC side 5., 6., 7. respectively with bundle conductor 1 ', 2 ', 3 ' be connected, in the multipole isolating switch of DC side 8., 9., 10. with bundle conductor 4 ', 5 ', 6 ' be connected, in the multipole isolating switch of DC side 5., 6., 7., 8., 9., 10. be connected on respectively DC ice-melting bundle conductor 1 ', 2 ', 3 ', 4 ', 5 ', 6 ' centre, bundle conductor 1 ', 2 ', 3 ', 4 ', 5 ', 6 ' two ends link together into short dot F, E.
High pressure isolation current transducer and an end of ammeter 10 and 4. being connected in DC side circuit breaker 19, the other end is connected with the negative pole of current converter 2, with the slotted line of rectifying device 8, is connected; One end of high pressure isolation voltage transmitter and voltmeter 11 is connected with the positive pole of current converter 2, and the other end is connected with the negative pole of current converter 2, separately has with the direct current supply line of rectifying device 7 and is connected, and with the slotted line of remote control measuring and controlling protective device 8, is connected; The protection control line that remote metering protection control flow 16 is surveyed multipole isolating switch 18 with direct current is connected, the protection control line of surveying circuit breaker 19 with direct current is connected, with the protective wire of ice-melt transformer, be connected, with the secondary electric streamline of current transformer, be connected, with the secondary electric line ball of voltage transformer, be connected, be connected with mains side circuit breaker 13 protection control lines, be connected with the power line of alternating current-direct current screen 17, be connected with the protection control line of mains side isolating switch; Alternating current-direct current screen 17 is connected with the three-phase service power, and direct current supply line is connected with remote metering protection control flow 16, mains side isolating switch 15, mains side circuit breaker 13, DC side circuit breaker 19, the multipole isolating switch 18 of DC side respectively.
Charged ice-melt is achieved in that
One, the ice melting current that the utility model requires the dielectric voltage withstand value of the insulating support of bundle conductor to be greater than this circuit is multiplied by the product of the resistance of this circuit, be V > IR, V is the withstand voltage between insulating support two static lines, and I is the ice melting current of this circuit, and R is the resistance on DC ice-melting.
Two, the three-phase of bundle conductor provides respectively the ice-melt power supply by three these devices that independence is identical.
Three, the ice-melt transformer is special manufacture, the low-voltage side coil of ice-melt transformer 1 and extraction catheter are to high-pressure side and the insulating requirements manufacture by the alternating voltage of this DC ice-melting operation to the insulation manufacturer's standard of shell, thereby can deaden the working voltage on ice-melt division circuit reliably, due to the later equipment of ice-melt transformer 1 low-pressure side except the multipole isolating switch 18 of DC side and DC side circuit breaker 19 not upper outside at insulated platform, and the multipole isolating switch 18 of DC side and DC side circuit breaker 19 are to select by the working line electric pressure, insulation does not have problems.Because the three-phase ice-melt is to adopt three these devices independent of the ice-melt DC power supply, each this device is only for a phase ice-melt, and ice-melt transformer 1 has the ac high voltage effect deadened on the ice melting operation circuit, so acting on three-phase divides between three independent direct current ice melting currents of leading not connected, just the ac high voltage on the ice melting operation circuit only has current potential and there is no potential difference being in all devices of device on insulated platform, so the current converter 2 of device on insulated platform, ice melting current adjuster 4, platform power transformer protector 6, synchronizing voltage instrument transformer 3, rectifying device 7, remote control measuring and controlling protective device 8, platform power transformer 5, high pressure isolation current transducer and ammeter 10, high pressure isolation voltage transmitter and voltmeter 11.Equipment all is in equipotential situation and moves, and has reached like this purpose of charged ice-melt.
Four, concrete using method
As shown in Figure 4, when station service is arranged, alternating current-direct current screen 17 is to remote metering protection control flow 16, mains side circuit breaker 13, mains side isolating switch 15, DC side circuit breaker 19, the multipole isolating switch 18 of DC side provides required operation and protection power source, when the ice-melt power supply is arranged, after power turn-on side isolating switch 15, power turn-on side circuit breaker 13 again, at this moment ice-melt transformer 1 is charged, at this moment voltage transformer 14, platform power transformer 5, synchronizing voltage instrument transformer 3 is charged, charged and the output direct current of rectifying device 7 simultaneously, to ice melting current adjuster 4, remote control measuring and controlling protective device 8, current converter 2, high pressure isolation current transducer and ammeter 10, high pressure isolation voltage transmitter and voltmeter 11 provide controls protection and working power.By selecting in the multipole isolating switch 18 of the required DC side of closing 7. and
10. and
joint closes, the DC side of closing circuit breaker 19, at this moment current converter 2 start to selected bundle conductor ice-melt line 3 ' and 6 ' wire on power transmission, as shown in Figure 4, the ice-melt supply terminals is connected on the two ends short dot F of required DC ice-melting and the centre of E.The path of ice melting current is such: electric current from the positive pole of rectifying device through the joint DC side circuit breaker 19 1. and 2. again to the head that melts of the multipole isolating switch of DC side
7. arrive bundle conductor 3 ' centre, electric current by short dot F, E be sent to bundle conductor 6 ' two ends, electric current from bundle conductor 6 ' the two ends contact that passes to the multipole isolating switch 19 of DC side 10., due to the contact on the multipole isolating switch of DC side 10. and
be closed, electric current passes through contact
passing to the contact of DC side circuit breaker 19 3. goes up, because 3. and 4. the contact of DC side circuit breaker 19 is closed, get back to a utmost point of converter through the 4. contact of DC side circuit breaker 19, this electric current has formed loop, electric current during by DC ice-melting owing to there being resistance to generate heat ice-out in circuit.Due to the three-phase DC ice-melting adopt three this install independent ice-melting mode, so the ice melting current of each phase can not form loop, reached the purpose of charged ice-melt.Operate the adjusting button on local remote metering protection control flow 16; remote control measuring and controlling protective device 8 is passed to ice melting current adjuster 4 after receiving conditioning signal; transmit triggering signal to current converter 2; make ice melting current reach required electric current; by remote control measuring and controlling protective device 8 and remote metering protection control flow 16; can see ice melting current and ice melting voltage parameter on remote metering protection control flow 16, can carry out real time remote control to current converter according to these parameters, thereby reach the ice-melt effect.
Claims (3)
1. equipotential is carried the charged deicing device of direct current, is characterised in that, it is arranged on the electric component on insulated platform mainly by insulated platform, and is arranged on the mains side isolating switch that insulated platform is outer and be connected with electric component, the mains side circuit breaker, current transformer, voltage transformer, the ice-melt transformer, the multipole isolating switch of DC side, the DC side circuit breaker, the alternating current-direct current screen, remote metering protection control flow forms, and described insulated platform is placed in airtight casing central authorities, mainly comprises the panel of being made by steel plate, the channel-section steel skeleton of being made by channel-section steel, support insulator, insulation cushion, its channel-section steel skeleton is arranged on the upper end of support insulator, the lower end of support insulator is fixed on the ground basal plane, the panel level is fixed on the channel-section steel skeleton, insulation cushion is positioned on the panel on casing turnover emergency exit doorway, described electric component mainly comprises interconnective current converter, ice melting current adjuster, platform power transformer, the synchronizing voltage instrument transformer, rectifying device, the remote control measuring and controlling protective device, platform power transformer protector, high pressure isolation current transducer and ammeter, high pressure isolation voltage transmitter and voltmeter, its electric component is connected by the phase line in the three-phase high-voltage power supply line of DC side circuit breaker and the multipole isolating switch of DC side and required ice-melt.
2. equipotential according to claim 1 is carried the charged deicing device of direct current, it is characterized in that, on described casing emergency exit doorway, also is provided with the emergency exit travel switch, and its emergency exit travel switch is connected with remote metering protection control flow.
3. equipotential according to claim 1 is carried the charged deicing device of direct current, it is characterized in that, described remote metering protection control flow and remote control measuring and controlling protective device are equipped with remote controller, and remote control can take remote measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539169.5U CN203387140U (en) | 2013-08-27 | 2013-08-27 | Equipotential direct-current-loaded electrified ice melting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539169.5U CN203387140U (en) | 2013-08-27 | 2013-08-27 | Equipotential direct-current-loaded electrified ice melting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387140U true CN203387140U (en) | 2014-01-08 |
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ID=49875590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320539169.5U Expired - Fee Related CN203387140U (en) | 2013-08-27 | 2013-08-27 | Equipotential direct-current-loaded electrified ice melting device |
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| Country | Link |
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| CN (1) | CN203387140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956701A (en) * | 2014-04-29 | 2014-07-30 | 刘化交 | Multifunctional charged intelligent ice melting system |
| CN113437718A (en) * | 2021-03-29 | 2021-09-24 | 贵州电网有限责任公司 | Zero-rise ice melting device of generator |
-
2013
- 2013-08-27 CN CN201320539169.5U patent/CN203387140U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956701A (en) * | 2014-04-29 | 2014-07-30 | 刘化交 | Multifunctional charged intelligent ice melting system |
| CN113437718A (en) * | 2021-03-29 | 2021-09-24 | 贵州电网有限责任公司 | Zero-rise ice melting device of generator |
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