CN205544962U - High voltage draw -out power supply based on cable joint - Google Patents

Abstract

The utility model discloses a high voltage draw -out power supply based on cable joint, include cable joint, lay sleeve on the cable joint shell, lay in the sleeve and the binding post that is connected with cable joint, the insulating coating pipe of being connected with the sleeve, the high voltage capacitor who is connected with power supply line, the transformer of being connected with high voltage capacitor, and a side line of transformer encloses and the voltage dividing capacitor that connects, right the lightning protection module that goes on protecting to the transformer when voltage measurement circuit, power supply line that power supply line's voltage carries out the real -time measurement take place the thunderbolt accident and with the ACDC power module of the secondary side winding connection of transformer, the insulating coating pipe is divided into the upper portion sleeve pipe and lies in the lower part sleeve pipe below the sleeve pipe of upper portion, and high voltage capacitor lays at the lower part cover intraductally. The utility model discloses the installation is compact and the stable performance is reliable, excellent in use effect, and assembling process is simple, can portably, quick accomplish installation, long service life.

Description

High voltage draw-out power supply based on cable connector

Technical field

This utility model belongs to power system automation technology field, especially relates to a kind of based on cable The high voltage draw-out power supply of joint.

Background technology

When distribution line is carried out on-line monitoring, the power supply supply of its transmission line of electricity is the key that need to solve One of problem.Actual when carrying out on-line monitoring, owing to the various sensors and signal gathering signal send Unit etc. are all laid near aerial line, and setting height(from bottom) and installation site are all very limited, thus Normal power supplies can not be used.It is additionally, since and the sensor and signal transmitting unit etc. are supplied The power work of electricity in the wild, inconvenient maintenance, thus usual above-mentioned power supply is both needed to possess the most non-maintaining Function, the reliability tackling power supply mutually proposes very high request.But, the most also do not occur one Plant simple in construction, easy-to-connect, the stable and reliable for performance and little power supply that is affected by the external environment. Therefore, develop special power supply of good performance and be applied to distribution line state parameter and supervise online Examining system, has important practical value.

Nowadays, the method for supplying power to neither one of distribution line state parameter on-line monitoring system unified, The method of standard and specification is available for following, and constructing operation randomness is relatively big, and the power supply used is also Disunity, and need to install in electrical equipment regulator etc., actual application is inevitably deposited Using the problems such as operation inconvenience, installation difficulty is big, using effect is poor.

Utility model content

Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to carry For a kind of high voltage draw-out power supply based on cable connector, its simple in construction, install compact and performance is steady Fixed reliable, using effect is good, can easy, be rapidly completed installation, and service life is long.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is: one connects based on cable The high voltage draw-out power supply of head, it is characterised in that: include cable connector, be laid in described cable connector Sleeve on shell, be laid in sleeve in and the first terminals of being connected with described cable connector High-voltage capacitor that son, the insulating coating pipe that is connected with sleeve of upper end are connected with power and distribution supply cable, The transformator being connected with described high-voltage capacitor and the first siding ring of transformator the derided capacitors connect Tension measuring circuit that device, voltage to described power and distribution supply cable are measured in real time, described for distribution The lightning protection module during circuit generation thunderbolt accident, transformator protected and with the two of transformator The AC/DC power module that secondary lateral coil connects, described lightning protection module is with described high-voltage capacitor even Connecing, described tension measuring circuit is connected with voltage-dividing capacitor；Described high-voltage capacitor is one and takes energy electricity Perhaps by taking described in multiple and can form and it is arranged in insulating coating pipe by capacitance series；Described high-tension electricity Container is connected with described power and distribution supply cable by the first binding post and described cable connector, described high pressure Capacitor is connected with the first siding ring of transformator.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described insulating coating pipe Lower inside coaxial sleeve is equipped with inner sleeve, and described high-voltage capacitor is installed in inner sleeve.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described insulating coating pipe divides For upper sleeve be positioned at the lower parts casing pipe below upper sleeve, described upper sleeve with in lower parts casing pipe Portion connects, and the internal diameter of described upper sleeve is less than the internal diameter of lower parts casing pipe, the upper end of described upper sleeve It is inserted in sleeve；Described high-voltage capacitor is laid in lower parts casing pipe, described lower parts casing pipe interior Side lower part is provided with the first conductive plate, and described high-voltage capacitor is positioned at above the first conductive plate and it supports On the first conductive plate, below described first conductive plate, it is connected to the connection cable for connection transformer； The lower inside of described lower parts casing pipe is to be filled the casting glue interstitital texture formed, described filling by casting glue Sealing interstitital texture is positioned at below described high-voltage capacitor, described connection cable the inner and the first conductive plate All embeddings are in casting glue interstitital texture.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described upper sleeve is built-in Have conductor wire, the two ends up and down of described conductor wire respectively with the first binding post and described high-voltage capacitor Connecting, described high-voltage capacitor passes through conductor wire, the first binding post and described cable connector with described Power and distribution supply cable connects.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described upper sleeve is folding Linear.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described upper sleeve and under Parts casing pipe is cylinder-shaped sleeve, described first conductive plate be metallic conduction plate and its be positioned at lower parts casing pipe Central axis on；Described first conductive plate is interior less than lower parts casing pipe of circular flat board and its diameter Footpath.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described upper sleeve and under Parts casing pipe processing and fabricating is integrated, described in take can electric capacity be metallized polypropylene film capacitor.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described in take can the number of electric capacity Amount for multiple, multiple described in take and can from top to bottom be contained in medial sleeve by electric capacity, and adjacent two take energy All pad equipped with conductive spacer between electric capacity, multiple described in take can electric capacity concatenated by conductive spacer； Take described in multiple that to be positioned at taking of topmost in electric capacity can electric capacity be top capacity, in described top capacity Portion is provided with the second conductive plate, and described second conductive plate is installed on the inside top of medial sleeve, described The inside bottom of upper sleeve is provided with the second binding post, and described second binding post is arranged on second On conductive plate, it is attached by the second binding post between described second conductive plate and conductor wire；Many Take described in individual that to be positioned at taking of foot in electric capacity can electric capacity be bottom capacitor, the end of described bottom capacitor End is supported on the first conductive plate and it is with the first conductive plate upper surface.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described tension measuring circuit Including voltage sample capacitor and the resistor voltage divider circuit that is connected with voltage sample capacitor；Described dividing potential drop Two terminals of capacitor two terminals with the first siding ring of transformator respectively are connected, described One end of voltage-dividing capacitor is connected with described power and distribution supply cable after taking energy electric capacity and its other end is through electricity Ground connection after pressure sampling capacitor.

Above-mentioned high voltage draw-out power supply based on cable connector, is characterized in that: described resistor voltage divider circuit Including resistance R1, resistance R2 and resistance R3, resistance R1 and voltage sample capacitor also connect, resistance One end ground connection of R1 and its other end ground connection after resistance R2 and resistance R3, the two ends of resistance R3 are equal Outfan for tension measuring circuit.

This utility model compared with prior art has the advantage that

1, simple in construction, volume is little, processing and fabricating is convenient and processing and fabricating cost is low.

2, use integral structure, overall package in insulating coating pipe, relative ceases to be busy screw outlet Mode, can effectively stop the moisture impact on wiring board, substantially increase the service life of power supply.

3, can not only power for electrical equipment, moreover it is possible to the voltage of connect high voltage power and distribution supply cable is provided Signal.

4, at high-voltage capacitor lower end series connection voltage-dividing capacitor, the most in parallel with compensator transformer, shape Becoming to mutually compensate for circuit, make output voltage stabilization controlled, output energy increases.

5, output power supply direct current, exchange optional, only need at the second siding ring two ends of transformator again Draw an alternating current power supply output lead respectively, it is achieved easy.

6, using effect is good and practical value high, the directly bus power taking from power and distribution supply cable, no Affected by line load, easily installed, and closing operation power supply can be provided during line outage.

7, perfect in shape and function, stable and reliable working performance, take and can use metallized polypropylene film electricity by electric capacity Container, has that loss factor is low, insulation resistance is high, capacitance and loss factor and temperature and a frequency pair The stability of ratio is high and the feature such as spontaneous recovery；The function of lightning protection module is that protection becomes when circuit thunderbolt Depressor is without damage, and the no-load voltage ratio taking energy transformator is 220/30 and the pressure 5kV of one secondary；AC/DC Power module is efficient green AC-DC power module, have wide input voltage range, AC/DC, The advantages such as high efficiency, high reliability, low-power consumption, security isolation, thus can effectively solve 10kV and supply The powerup issue of distribution electric power apparatus monitoring device in electrical cables.Meanwhile, it is provided with tension measuring circuit, The voltage of power and distribution supply cable can be measured in real time.

8, exogenous mode is used to be arranged on cable connector, will not to the cable on cable connector even The problem of connecing has any impact, and will not take the interface on cable connector.

In sum, this utility model simple in construction, install compact and stable and reliable for performance, use effect The best, assembling process is simple, and energy is easy, be rapidly completed installation, and service life is long, can be effective Solve powerup issue when aerial line distribution line state parameter on-line monitoring system uses.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is schematic block circuit diagram of the present utility model.

Fig. 2 is structural representation of the present utility model.

Description of reference numerals:

1 casting glue interstitital texture；2 take energy electric capacity；3 transformators；

4 insulating coating pipes；4-1 upper sleeve；Parts casing pipe under 4-2；

4-3 medial sleeve；5 voltage-dividing capacitors；6 first conductive plates；

7 first binding posts；8 tension measuring circuits；

8-1 voltage sample capacitor；9 lightning protection modules；

10 AC/DC power modules；11 inner sleeves；

12 connect cable；13 second binding posts；14 second conductive plates；

15 conductor wires；16 conductive spacers；17 T-shaped cable connectors；

18 sleeves.

Detailed description of the invention

As shown in Figure 1 and Figure 2, this utility model includes cable connector, is laid in outside described cable connector Sleeve 18 on shell, be laid in sleeve 18 in and the first wiring of being connected with described cable connector The high pressure that the insulating coating pipe 4 that terminal 7, upper end are connected with sleeve 18 is connected with power and distribution supply cable Transformator 3 that capacitor is connected with described high-voltage capacitor and the first siding ring of transformator 3 are also The voltage measurement electricity that the voltage-dividing capacitor 5 that connects, voltage to described power and distribution supply cable are measured in real time Lightning protection mould when road 8, described power and distribution supply cable generation thunderbolt accident, transformator 3 protected The AC/DC power module 10 that block 9 and the second siding ring with transformator 3 are connected, described lightning protection Module 9 is connected with described high-voltage capacitor, and described tension measuring circuit 8 is connected with voltage-dividing capacitor 5； Described high-voltage capacitor is one and takes energy electric capacity 2 or take and can electric capacity 2 concatenation form and it described in multiple It is arranged in insulating coating pipe 4.Described high-voltage capacitor passes through the first binding post 7 and described cable Joint is connected with described power and distribution supply cable, and described high-voltage capacitor connects with the first siding ring of transformator 3 Connect.

In the present embodiment, the lower inside coaxial sleeve of described insulating coating pipe 4 equipped with inner sleeve 11, Described high-voltage capacitor is installed in inner sleeve 11.

In the present embodiment, described insulating coating pipe 4 is divided into upper sleeve 4-1 and is positioned at upper sleeve 4-1 The lower parts casing pipe 4-2 of lower section, described upper sleeve 4-1 is internal with lower parts casing pipe 4-2 to be connected, described The internal diameter of the upper sleeve 4-1 internal diameter less than lower parts casing pipe 4-2, the upper end of described upper sleeve 4-1 It is inserted in sleeve 20.Described high-voltage capacitor is laid in lower parts casing pipe 4-2, described bottom The lower inside of sleeve pipe 4-2 is provided with the first conductive plate 6, and described high-voltage capacitor is positioned at the first conduction Above plate 6 and it is supported on the first conductive plate 6, it is connected to below described first conductive plate 6 for even Connect the connection cable 12 of transformator 3.The lower inside of described lower parts casing pipe 4-2 is for be filled by casting glue The casting glue interstitital texture 1 formed, described casting glue interstitital texture 1 is positioned under described high-voltage capacitor Side, described connection cable 12 is inner and the first equal embedding of conductive plate 6 is in casting glue interstitital texture 1.

During actual installation, described inner sleeve 11 is set in lower parts casing pipe 4-2.

The inner chamber of described inner sleeve 11 is divided into capacitor installation cavity and is positioned at described capacitor installation cavity Lower section and the bottom package chamber being packaged by casting glue interstitital texture 1, described high-voltage capacitor is loaded on In described capacitor installation cavity, described first conductive plate 6 is positioned at described bottom package intracavity；Described electricity Container installation cavity is circular cylindrical cavity with described bottom package chamber and the internal diameter of the two is identical.Thus, The lower inside of described inner sleeve 11 is described bottom package chamber.

Actual adding man-hour, described inner sleeve 11 carries out mould for using casting mould to epoxide-resin glue The sleeve pipe that cast becomes.

In the present embodiment, described upper sleeve 4-1 built with conductor wire 15, described conductor wire 15 Two ends are connected with the first binding post 7 and described high-voltage capacitor respectively up and down, described high-voltage capacitor It is connected with described power and distribution supply cable by conductor wire the 15, first binding post 7 and described cable connector.

In the present embodiment, described cable connector is T-shaped cable connector 17 or European cable connector.

In the present embodiment, described power and distribution supply cable be overhead transmission line and its be 10kV distribution line, The voltage of described power and distribution supply cable is denoted as HV.

In the present embodiment, described high-voltage capacitor is electric capacity C1, and described voltage-dividing capacitor 5 is electric capacity C2.Described insulating coating pipe 4 is silicon rubber insulation overcoat.

In the present embodiment, described lightning protection module 9 includes 4 Transient Suppression Diodes (i.e. TVS) With two varistors, two described varistors are respectively resistance R4 and resistance R5, resistance R4 Concatenating and formed varistor protection circuit with resistance R5, one end of resistance R4 is connected with resistance R5 And the wiring point between the first siding ring of its other end and described high-voltage capacitor and transformator 3 is even Connecing, one end of resistance R5 is connected with resistance R4 and its other end ground connection；4 described transient state suppression two Pole pipe is respectively Transient Suppression Diode D1, D2, D3 and D4, Transient Suppression Diode D1 and D2 With described varistor protection circuit connecing after concatenation, after Transient Suppression Diode D3 and D4 concatenation with Described varistor protection circuit also connects.

In the present embodiment, described medial sleeve 4-3 and lower parts casing pipe 4-2 in coaxial lay, described on Parts casing pipe 4-1 is fold-line-shaped.

Described upper sleeve 4-1 is divided into upper tubular section and is positioned at the lower tube below described upper tubular section Section, described lower tubular section is laid in coaxial with medial sleeve 4-3.

In the present embodiment, described upper sleeve 4-1, medial sleeve 4-3 and lower parts casing pipe 4-2 are Cylinder-shaped sleeve, described first conductive plate 6 for metallic conduction plate and its be positioned in lower parts casing pipe 4-2 On mandrel line；Described first conductive plate 6 is interior less than lower parts casing pipe 4-2 of circular flat board and its diameter Footpath.

In the present embodiment, described first conductive plate 6 is copper coin.

In the present embodiment, described in take the quantity of electric capacity 2 to be multiple, multiple described in take can electric capacity 2 by It is contained in down in medial sleeve 4-3, and adjacent two take and all can pad equipped with conductive pad between electric capacity 2 Sheet 16, multiple described in take and can electric capacity 2 be concatenated by conductive spacer 16；Taking described in multiple can electricity Holding in 2 that to be positioned at taking of topmost can electric capacity 2 be top capacity, described top capacity top is provided with the Two conductive plates 14, described second conductive plate 14 is installed on the inside top of medial sleeve 4-3, described The inside bottom of upper sleeve 4-1 is provided with the second binding post 13, described second binding post 13 It is arranged on the second conductive plate 14, by second between described second conductive plate 14 and conductor wire 15 Binding post 13 is attached；Take described in multiple electric capacity 2 can be positioned at taking of foot can electric capacity 2 For bottom capacitor, the bottom of described bottom capacitor is supported on the first conductive plate 6 and it conducts electricity with first Plate 6 upper surface.

In the present embodiment, described in take the quantity of electric capacity 2 to be 3.

Time actually used, can according to specific needs the quantity taking energy electric capacity 2 be adjusted accordingly.

In the present embodiment, described conductive spacer 16 is conductive rubber pad.

In the present embodiment, described second conductive plate 14 is copper coin, and described conductor wire 15 is annealed copper wire.

In the present embodiment, described second conductive plate 14 be copper coin and its be circular flat board.

In the present embodiment, described upper sleeve 4-1, medial sleeve 4-3 and lower parts casing pipe 4-2 processing It is made as one.

Further, take described in electric capacity 2 to be metallized polypropylene film capacitor.

As it is shown in figure 1, described tension measuring circuit 8 includes voltage sample capacitor 8-1 and and voltage The resistor voltage divider circuit that sampling capacitor 8-1 connects；Two terminals of described voltage-dividing capacitor 5 divide It is not connected with two terminals of the first siding ring of transformator 3, one end of described voltage-dividing capacitor 5 It is connected with described power and distribution supply cable after taking energy electric capacity 2 and its other end is through voltage sample capacitor 8-1 Rear ground connection.In the present embodiment, described voltage sample capacitor 8-1 is electric capacity C3.

Described voltage-dividing capacitor 5 is the compensation capacitor of transformator 3, and transformator 3 is derided capacitors The compensator transformer of device 5.

In the present embodiment, described resistor voltage divider circuit includes resistance R1, resistance R2 and resistance R3, electricity Resistance R1 and voltage sample capacitor 8-1 also connects, and one end ground connection of resistance R1 and its other end are through resistance Ground connection after R2 and resistance R3, the two ends of resistance R3 are the outfan of tension measuring circuit 8.

In the present embodiment, the upper end coaxial sleeve of described connection cable 12 is equipped with sealing shroud 1, described sealing Set 1 is positioned at lower parts casing pipe 4-2 and its embedding in casting glue interstitital texture 11.

In the present embodiment, described connection cable 12 is positioned at the underface of the first conductive plate 6.

Further, described second conductive plate 14 is positioned at the underface of the first conductive plate 6.

Time actually used, described first binding post 7 upper end is with the fittings body in described cable connector even Connect.

In the present embodiment, the inner top side of described sleeve 18 is provided with and the connecing of described cable connector The conductive layer that head body connects, described first binding post 7 front end is inserted in described conductive layer and it leads to Cross described conductive layer to be connected with described fittings body.

The above, be only preferred embodiment of the present utility model, and this utility model is not made any limit System, every according to this utility model technical spirit, above example is made any simple modification, change And equivalent structure change, all still fall within the protection domain of technical solutions of the utility model.

Claims (10)

1. a high voltage draw-out power supply based on cable connector, it is characterised in that: include cable connector, Be laid in the sleeve on described cable splice case (18), be laid in sleeve (18) and with The first binding post (7), upper end that described cable connector connects are exhausted with what sleeve (18) was connected High-voltage capacitor and described high-voltage capacitor that edge trocar sheath (4) is connected with power and distribution supply cable connect The transformator (3) connect and the first siding ring of transformator (3) the voltage-dividing capacitor (5) connect, Tension measuring circuit (8), the described confession measured the voltage of described power and distribution supply cable in real time are joined The lightning protection module (9) during electric line generation thunderbolt accident, transformator (3) protected and with The AC/DC power module (10) that the second siding ring of transformator (3) connects, described lightning protection Module (9) is connected with described high-voltage capacitor, described tension measuring circuit (8) and voltage-dividing capacitor (5) connect；Described high-voltage capacitor is one and takes energy electric capacity (2) or take energy electric capacity described in multiple (2) concatenation forms, and described high-voltage capacitor is arranged in insulating coating pipe (4)；Described high-tension electricity Container is connected with described power and distribution supply cable by the first binding post (7) and described cable connector, institute State high-voltage capacitor to be connected with the first siding ring of transformator (3).

2., according to the high voltage draw-out power supply based on cable connector described in claim 1, its feature exists In: the lower inside coaxial sleeve of described insulating coating pipe (4) is equipped with inner sleeve (11), described High-voltage capacitor is installed in inner sleeve (11).

3., according to the high voltage draw-out power supply based on cable connector described in claim 1 or 2, it is special Levy and be: described insulating coating pipe (4) is divided into upper sleeve (4-1) and is positioned at upper sleeve (4-1) The lower parts casing pipe (4-2) of lower section, described upper sleeve (4-1) is internal with lower parts casing pipe (4-2) Connection, the internal diameter of described upper sleeve (4-1) less than the internal diameter of lower parts casing pipe (4-2), described on The upper end of parts casing pipe (4-1) is inserted in sleeve (20)；Described high-voltage capacitor is laid in down In parts casing pipe (4-2), the lower inside of described lower parts casing pipe (4-2) is provided with the first conductive plate (6), Described high-voltage capacitor is positioned at the first conductive plate (6) top and it is supported on the first conductive plate (6), Described first conductive plate (6) lower section is connected to the connection cable (12) for connection transformer (3)； The lower inside of described lower parts casing pipe (4-2) is to be filled, by casting glue, the casting glue interstitital texture formed (1), described casting glue interstitital texture (1) is positioned at below described high-voltage capacitor, described connection electricity Cable (12) is inner and the first conductive plate (6) all embeddings are in casting glue interstitital texture (1).

4., according to the high voltage draw-out power supply based on cable connector described in claim 3, its feature exists In: described upper sleeve (4-1) built with conductor wire (15), described conductor wire (15) upper Lower two ends are connected with the first binding post (7) and described high-voltage capacitor respectively, described high-voltage capacitance Device supplies distribution by conductor wire (15), the first binding post (7) and described cable connector with described Connection.

5., according to the high voltage draw-out power supply based on cable connector described in claim 3, its feature exists In: described upper sleeve (4-1) is fold-line-shaped.

6., according to the high voltage draw-out power supply based on cable connector described in claim 3, its feature exists In: described upper sleeve (4-1) and lower parts casing pipe (4-2) are cylinder-shaped sleeve, and described first Conductive plate (6) be metallic conduction plate and its be positioned on the central axis of lower parts casing pipe (4-2)；Described First conductive plate (6) is the internal diameter that circular flat board and its diameter are less than lower parts casing pipe (4-2).

7., according to the high voltage draw-out power supply based on cable connector described in claim 3, its feature exists In: described upper sleeve (4-1) and lower parts casing pipe (4-2) processing and fabricating are integrated, described in take energy Electric capacity (2) is metallized polypropylene film capacitor.

8., according to the high voltage draw-out power supply based on cable connector described in claim 4, its feature exists In: described in take can electric capacity (2) quantity be multiple, multiple described in take can electric capacity (2) from top to bottom It is contained in medial sleeve (4-3), and adjacent two take and all can pad equipped with conductive pad between electric capacity (2) Sheet (16), multiple described in take and can be concatenated by conductive spacer (16) by electric capacity (2)；Multiple Described take that to be positioned at taking of topmost in electric capacity (2) can electric capacity (2) be top capacity, described top Electric capacity top is provided with the second conductive plate (14), and described second conductive plate (14) is installed on middle part set The inside top of pipe (4-3), the inside bottom of described upper sleeve (4-1) is provided with the second wiring Terminal (13), described second binding post (13) is arranged on the second conductive plate (14), described It is attached by the second binding post (13) between second conductive plate (14) and conductor wire (15)； Take described in multiple that to be positioned at taking of foot in electric capacity (2) can electric capacity (2) be bottom capacitor, described The bottom of bottom capacitor is supported in that the first conductive plate (6) is upper and itself and the first conductive plate (6) upper surface Contact.

9., according to the high voltage draw-out power supply based on cable connector described in claim 1 or 2, it is special Levy and be: described tension measuring circuit (8) includes voltage sample capacitor (8-1) and adopts with voltage The resistor voltage divider circuit that sample capacitor (8-1) connects；Two wiring of described voltage-dividing capacitor (5) End two terminals with the first siding ring of transformator (3) respectively are connected, described voltage-dividing capacitor (5) one end is connected with described power and distribution supply cable after taking energy electric capacity (2) and its other end is through voltage Sampling capacitor (8-1) ground connection afterwards.

10. according to the high voltage draw-out power supply based on cable connector described in claim 9, its feature It is: described resistor voltage divider circuit includes resistance R1, resistance R2 and resistance R3, resistance R1 and electricity Pressure sampling capacitor (8-1) also connects, one end ground connection of resistance R1 and its other end through resistance R2 and Ground connection after resistance R3, the two ends of resistance R3 are the outfan of tension measuring circuit (8).