Cable connector with closed conductive parts and insulated screen

FIELD: electricity.

SUBSTANCE: invention is referred to the connector with closed conductive parts comprised of cable assembly and connecting device, wherein screen of insulation and metal earthing are insulated from a part of outer semiconductor layer of the connecting device, which forms part of a chamber with at least a part of the cable assembly in it. The connector is applied to cross connection.

EFFECT: charge and heat accumulation is prevented in metal screening layer of cables in result of earth current passing through metal screening layer and leading to degradation of the cable.

15 cl, 10 dwg

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention relates to an insulator for a tight shell of a connector of end termination of an electric cable, which provides for electric connection between end termination of the cable (132, 134) and a domestic contact terminal. In accordance with the invention the insulator (100) comprises the first installation channel (102) to hold the domestic contact terminal (208) and the second assembly channel (104) to partially hold the cable (132, 134), besides, the second installation channel (104) has a contact area (112), in which in the mounted condition there is a cable tip located subject to electric contact impact, and a sealing area (114), which may become a support as capable of sealing of the end termination of the cable, and in which the central axis (118) of the sealing area (114) is located as shifted relative to the central axis (116) of the connection area (112).

EFFECT: higher tightness between a channel and a cable in a wide range of diameters of used cables.

18 cl, 23 dwg

Electrical element // 2524379

FIELD: electricity.

SUBSTANCE: electrical element includes two or more current-conducting elements, through which current flows, and an insulator retaining the corresponding current-conducting elements in an insulated state. Resistive body (13) is created in a circumferential direction of at least one of current-conducting elements (11) on surface of insulator (12). Resistive body (13) distributes voltage applied to surface of insulator (12) between two adjacent current-conducting elements (11), and as a result, difference of potentials, which is distributed along the surface of insulator (12), becomes equal to voltage of the beginning of the charge or is lower than it.

EFFECT: improving reliability of electrical element insulation.

14 cl, 11 dwg

FIELD: electricity.

SUBSTANCE: connecting surfaces (12) of a connecting electrode (10) have flat shape. Connecting devices (12, 12') comprise a conducting insert (24) in a crushable insulating elastomer (14), cast and coated with a screen (20). Connecting surfaces (26, 28) of conducting inserts (24) are arranged with displacement relative to connecting surfaces (16, 18) of an insulating support (14). After the connection has been made, insulating surfaces (16, 16') contact with each other, and compression is carried out, making it possible to implement an air impermeable connection, at the same time conducting surfaces (26, 26') enter in contact with each other. The unit is in compressed condition with the help of a central screw (50), which is preferably connected with a locking device (52), for the connecting surface (18), not used for electric connection.

EFFECT: simplified connection between electric devices, higher speed, flexibility and reliability of a connection due to simplification of an allowance for terminals arrangement, and provides for levelling by arrangement of connected poles.

19 cl, 4 dwg

FIELD: electrical engineering.

SUBSTANCE: plug-in HV input (D) serves for connection of a current lead to the HV installation component (T) filled with an insulating medium and encapsulated inside a metal housing. The input is designed to be rotationally symmetrical relative to axis (A) and contains a centrally position current lead (10), a field control device and (enveloping the current lead) an insulator (20) with a tapering section (21) that, after the input (D) insertion into the plug-in part (60) covering the component (T) in a manner impermeable for the insulating medium, dielectrically strengthens the gap (F) positioned between the plug-in part (60) insulating bushing (64) and the insulator (21) tapering section. The field control device is designed as a capacitor roll (40), the capacitor roll (40) containing capacitor armatures (41) electrically insulated from each other, retained (in the radial direction) by an insulating film (42) with a gap relative to each other and embedded into the insulator (20) by way of the capacitor roll (40) sealing in consolidated polymer mass; the capacitor armatures (41) pass through the installation flange (30) towards the insulator (20) tapering section (21).

EFFECT: creation of an input of comparatively simple and robust design, applicable for efficient control of active electric field in case of the input operating at very high operational voltages.

13 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: electric connecting element (1) for connection of at least a conductor (6) with a circuit board (10) comprises a body (2), at least one gripping connector (5) for the conductor (6), and also at least two connecting terminals (3) for a connection with the circuit board (10), preferably the one suitable for soldering. The body (2) on the lower side (2a) that faces the circuit board (10) in the mounting position has at least one protruding separating element (4) of an insulating material, which at least on sections between the connecting terminals (3) and in the mounting position passes through the circuit board (10). At the same time even in case there is a distance between the connecting terminals (3), which is less than prescribed by according standards for safe gaps, a sufficient protection is ensured against a hazard of breakthrough between the energised connecting terminals (3).

EFFECT: realisation of an electric connecting element with smaller dimensions.

19 cl, 8 dwg

Electric connector // 2306645

FIELD: electrical engineering.

SUBSTANCE: proposed electric connector has corrugated shielding member in the form of flexible bellows tightly closed on both ends with shrouds provided with through holes forming common space with inner cavity of bellows filled with mixture of neutrally reduced gases wherein electric conductor in the form of stranded wire is disposed to protect it against oxidation in chemically active medium at enhanced temperature, its conservative length being placed within bellows varying its length and shape when contact members are moving. Stranded wire ends are compressed to form washers with holes which are tightly secured by means of contact members within shrouds. Both ends of stranded wire are passed through shroud holes and secured therein by molding to allow for gas passage through space between wire strands.

EFFECT: enhanced resistance of connector to electric loads in chemically active media at enhanced temperature.

3 cl, 3 dwg

FIELD: electrical engineering; high-voltage connectors for power distribution systems.

SUBSTANCE: connector shroud with through passage has first layer abutting against this passage, second layer enclosing first one and made of thermoplastic elastomer (TPE insulating material), and third layer enclosing second one and made of low-conductivity material (below 108 Ohm-cm) which can be also made of TPE material. TPE layers are press-fitted one on top of other.

EFFECT: facilitated manufacture, enhanced electrical characteristics.

23 cl, 13 dwg

FIELD: electrical engineering; connectors for cable including those used in explosive and gas-laden areas.

SUBSTANCE: proposed explosion-proof connector has plug section shroud and socket section shroud accommodating plugs and sockets, respectively. Cable conductors are soldered to plug pins and socket jacks and sealed in shrouds by means of sealing compound. Shrouds of plug and socket sections are joined together by threaded bracing bushing provided with lock nut to prevent their spontaneous turn-out. Translational movement of bracing bushing along connector axis is limited on one end by projection provided on socket section shroud and on other end, by lock ring. Socket section shroud has groove to receive packing.

EFFECT: simplified design, enhanced reliability of explosion protection due to reliable sealing.

1 cl, 1 dwg

Plug connection // 2231184
The invention relates to a plug connection for connecting a cable in underground mining

FIELD: electrical engineering; connectors for cable including those used in explosive and gas-laden areas.

SUBSTANCE: proposed explosion-proof connector has plug section shroud and socket section shroud accommodating plugs and sockets, respectively. Cable conductors are soldered to plug pins and socket jacks and sealed in shrouds by means of sealing compound. Shrouds of plug and socket sections are joined together by threaded bracing bushing provided with lock nut to prevent their spontaneous turn-out. Translational movement of bracing bushing along connector axis is limited on one end by projection provided on socket section shroud and on other end, by lock ring. Socket section shroud has groove to receive packing.

EFFECT: simplified design, enhanced reliability of explosion protection due to reliable sealing.

1 cl, 1 dwg

FIELD: electrical engineering; high-voltage connectors for power distribution systems.

SUBSTANCE: connector shroud with through passage has first layer abutting against this passage, second layer enclosing first one and made of thermoplastic elastomer (TPE insulating material), and third layer enclosing second one and made of low-conductivity material (below 108 Ohm-cm) which can be also made of TPE material. TPE layers are press-fitted one on top of other.

EFFECT: facilitated manufacture, enhanced electrical characteristics.

23 cl, 13 dwg

Electric connector // 2306645

FIELD: electrical engineering.

SUBSTANCE: proposed electric connector has corrugated shielding member in the form of flexible bellows tightly closed on both ends with shrouds provided with through holes forming common space with inner cavity of bellows filled with mixture of neutrally reduced gases wherein electric conductor in the form of stranded wire is disposed to protect it against oxidation in chemically active medium at enhanced temperature, its conservative length being placed within bellows varying its length and shape when contact members are moving. Stranded wire ends are compressed to form washers with holes which are tightly secured by means of contact members within shrouds. Both ends of stranded wire are passed through shroud holes and secured therein by molding to allow for gas passage through space between wire strands.

EFFECT: enhanced resistance of connector to electric loads in chemically active media at enhanced temperature.

3 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: electric connecting element (1) for connection of at least a conductor (6) with a circuit board (10) comprises a body (2), at least one gripping connector (5) for the conductor (6), and also at least two connecting terminals (3) for a connection with the circuit board (10), preferably the one suitable for soldering. The body (2) on the lower side (2a) that faces the circuit board (10) in the mounting position has at least one protruding separating element (4) of an insulating material, which at least on sections between the connecting terminals (3) and in the mounting position passes through the circuit board (10). At the same time even in case there is a distance between the connecting terminals (3), which is less than prescribed by according standards for safe gaps, a sufficient protection is ensured against a hazard of breakthrough between the energised connecting terminals (3).

EFFECT: realisation of an electric connecting element with smaller dimensions.

19 cl, 8 dwg

FIELD: electrical engineering.

SUBSTANCE: plug-in HV input (D) serves for connection of a current lead to the HV installation component (T) filled with an insulating medium and encapsulated inside a metal housing. The input is designed to be rotationally symmetrical relative to axis (A) and contains a centrally position current lead (10), a field control device and (enveloping the current lead) an insulator (20) with a tapering section (21) that, after the input (D) insertion into the plug-in part (60) covering the component (T) in a manner impermeable for the insulating medium, dielectrically strengthens the gap (F) positioned between the plug-in part (60) insulating bushing (64) and the insulator (21) tapering section. The field control device is designed as a capacitor roll (40), the capacitor roll (40) containing capacitor armatures (41) electrically insulated from each other, retained (in the radial direction) by an insulating film (42) with a gap relative to each other and embedded into the insulator (20) by way of the capacitor roll (40) sealing in consolidated polymer mass; the capacitor armatures (41) pass through the installation flange (30) towards the insulator (20) tapering section (21).

EFFECT: creation of an input of comparatively simple and robust design, applicable for efficient control of active electric field in case of the input operating at very high operational voltages.

13 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: connecting surfaces (12) of a connecting electrode (10) have flat shape. Connecting devices (12, 12') comprise a conducting insert (24) in a crushable insulating elastomer (14), cast and coated with a screen (20). Connecting surfaces (26, 28) of conducting inserts (24) are arranged with displacement relative to connecting surfaces (16, 18) of an insulating support (14). After the connection has been made, insulating surfaces (16, 16') contact with each other, and compression is carried out, making it possible to implement an air impermeable connection, at the same time conducting surfaces (26, 26') enter in contact with each other. The unit is in compressed condition with the help of a central screw (50), which is preferably connected with a locking device (52), for the connecting surface (18), not used for electric connection.

EFFECT: simplified connection between electric devices, higher speed, flexibility and reliability of a connection due to simplification of an allowance for terminals arrangement, and provides for levelling by arrangement of connected poles.

19 cl, 4 dwg

Electrical element // 2524379

FIELD: electricity.

SUBSTANCE: electrical element includes two or more current-conducting elements, through which current flows, and an insulator retaining the corresponding current-conducting elements in an insulated state. Resistive body (13) is created in a circumferential direction of at least one of current-conducting elements (11) on surface of insulator (12). Resistive body (13) distributes voltage applied to surface of insulator (12) between two adjacent current-conducting elements (11), and as a result, difference of potentials, which is distributed along the surface of insulator (12), becomes equal to voltage of the beginning of the charge or is lower than it.

EFFECT: improving reliability of electrical element insulation.

14 cl, 11 dwg

FIELD: electricity.

SUBSTANCE: invention relates to an insulator for a tight shell of a connector of end termination of an electric cable, which provides for electric connection between end termination of the cable (132, 134) and a domestic contact terminal. In accordance with the invention the insulator (100) comprises the first installation channel (102) to hold the domestic contact terminal (208) and the second assembly channel (104) to partially hold the cable (132, 134), besides, the second installation channel (104) has a contact area (112), in which in the mounted condition there is a cable tip located subject to electric contact impact, and a sealing area (114), which may become a support as capable of sealing of the end termination of the cable, and in which the central axis (118) of the sealing area (114) is located as shifted relative to the central axis (116) of the connection area (112).

EFFECT: higher tightness between a channel and a cable in a wide range of diameters of used cables.

18 cl, 23 dwg

FIELD: electricity.

SUBSTANCE: through connector (100) extends partially or completely through the hole in a wall (202) of underwater containers (200). The connector contains a conductive rod (102), with a conic part (104) with an external diameter increasing in a longitudinal direction (108), and also electrical insulator (136), with a conic part (138) with an internal surface (140), directed towards the conic part (104) of the rod, and with an external surface (142), opposing the internal surface (140), directed towards the conic part (104) of the rod. The outer diameter (144) of the surface (142) of the conic part (138) of the insulator is increased in a longitudinal direction (108), which passes from internal space (204) of the container towards external space (206).

EFFECT: improvement of leakproofness of connection and prevention of the connector destruction as a result of significant pressure drops between external and internal spaces of the container.

19 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention is referred to the connector with closed conductive parts comprised of cable assembly and connecting device, wherein screen of insulation and metal earthing are insulated from a part of outer semiconductor layer of the connecting device, which forms part of a chamber with at least a part of the cable assembly in it. The connector is applied to cross connection.

EFFECT: charge and heat accumulation is prevented in metal screening layer of cables in result of earth current passing through metal screening layer and leading to degradation of the cable.

15 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: invention is referred to the connector with closed conductive parts comprised of cable assembly and connecting device, wherein screen of insulation and metal earthing are insulated from a part of outer semiconductor layer of the connecting device, which forms part of a chamber with at least a part of the cable assembly in it. The connector is applied to cross connection.

EFFECT: charge and heat accumulation is prevented in metal screening layer of cables in result of earth current passing through metal screening layer and leading to degradation of the cable.

15 cl, 10 dwg

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