CN209562011U - Vertical arrangement of 10kV overhead lines with load to replace switchgear on pole - Google Patents

Abstract

The utility model relates to the technical field of live work in a power distribution network, in particular to a vertically arranged 10kV overhead line load replacement switch device on a pole. It includes a diversion line cross-arm fixing frame, a diversion line assembly and an insulating operating rod; multiple sets of the diversion line assemblies are fixed on the diversion line cross-arm fixing frame, and the diversion line assembly includes a diversion line main pipe and a soft high-voltage line, Both ends of the main pipe of the shunt line are respectively connected with a soft high-voltage wire, one end of the soft high-voltage wire is connected with the main pipe of the shunt line, and the other end is connected with the high-voltage wire; The bracket is adapted to the insulating operating rod, and the shunt line cross-arm fixing frame is fixed on the cross-arm through the insulating operating rod. The utility model realizes the shunting of the insulating rod operation method, reduces the amount of shielding work, greatly reduces the operation time and labor intensity, and reduces the scope and time of power outages.

Description

Vertical arrangement of 10kV overhead lines with load to replace switchgear on pole

technical field

The utility model relates to the technical field of live work in a power distribution network, in particular to a vertically arranged 10kV overhead line load replacement switch device on a pole.

Background technique

With the continuous improvement of people's material and cultural living standards, they are more and more dependent on the stable power supply, and their tolerance for the length of power outages is getting lower and lower. In the 10 kV power distribution operation, the replacement of the column switch in the line reconstruction takes a long time in various operations, which belongs to the key process on the key line. Shortening the operation time of this process has significant economic benefits and social benefits. benefit. In the existing operation, there is no effective way to fix the shunted insulated drain wire for the load-loaded switch switch operation of vertically arranged lines, resulting in the inability of the drain wire to maintain an effective safe distance from the adjacent phase conductors.

The utility model patent with the domestic application number of 2016108081862 discloses "a 10KV line insulation rod indirect bypass live replacement operation method for the switch on the pole", including the following steps: S1, erecting a temporary working platform; S2, installing on the top of the temporary working platform Drop-out knife switch cross-arm, and fix bypass cable cross-arm; S3, measure the distance between the pile head of each phase drop-type knife switch and the corresponding wire, and make three branch lead wires according to the distance; S4, put the insulation shield Place it on the phase wires on both sides to avoid contact between the phase wires on both sides and the middle phase lead wire when lapping the middle phase lead wire; S5. Install the three-phase lead wire on the pile head of the corresponding drop-type knife switch; S6. Phase leads, and remove the insulation shielding cover; S7. Lap the phase leads on both sides, and set the drop insulation shielding baffle. By adopting the above steps, the operation process of the temporary platform operation point on the load side can be effectively realized, and the operation process on the load side can be standardized, production accidents can be reduced, and maintenance efficiency can be improved. Although the patent discloses several steps, it does not give the specific structure of the relevant insulated drain wires, and the structure of the insulated drain wires has more practical significance for improving the efficiency of the switch on the pole replacement with load and reducing labor intensity, which belongs to the core technology .

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a vertically arranged 10kV overhead line load replacement switchgear on the pole, which realizes the shunting of the insulating pole operation method, reduces the amount of shielding work, and greatly reduces the operation time and labor intensity. Reduce the scope and duration of outages.

In order to achieve the above object, the utility model adopts the following technical solutions to realize:

Vertically arrange the 10kV overhead line with load to replace the switchgear on the pole, including the cross-arm fixing frame of the shunt line, the shunt line assembly and the insulating operating rod; multiple sets of the shunt line assembly are fixed on the cross-arm fixing frame of the shunt line, The shunt line assembly includes a shunt line supervisor and a soft high-voltage line. Both ends of the shunt line supervisor are connected to a soft high-voltage line. One end of the soft high-voltage line is connected to the shunt line supervisor, and the other end is connected to the high-voltage line; The frame is fixed on the cross arm, the shunt line cross arm fixing frame is adapted to the insulating operating rod, and the shunting line cross arm fixing frame is fixed on the cross arm through the insulating operating rod.

The cross-arm fixing frame of the distribution line includes a support pipe for the distribution line, a seat for the distribution line, an insulating door sealing card, a clamping hoop, an insulating hook for the cross-arm, a clamp for connecting the cross-arm, a screw ejector rod and a top block; The wire seat, the clip hoop and the cross-arm insulation hook are sequentially fixed on the shunt wire support pipe.

The lower part of the insulating hook of the cross arm is symmetrically provided with a hook body, and the shape of the hook body is adapted to the cross arm.

The insulating door sealing card is installed on the shunt wire seat; the cross-arm joint plate clamp is fixed on the clip hoop, the screw jack is installed on the cross-arm joint plate clamp, and the top block is fixed on the screw jack.

The shunt line assembly also includes a positioning ring, a pipe sleeve, a shunt line telescopic tube, a shunt line clip hanging ring and a shunt line clip; There is a socket telescopic structure between the streamline telescopic pipe and the diversion line main pipe.

The shunt clamp includes a C-shaped line clamp, a V-shaped jacking block and a jack bolt, the V-shaped jacking block is placed at the end of the jacking pin bolt, the jacking bolt is connected with the C-shaped line chuck, and the V-shaped jacking block A clamping space for high-voltage wires is formed between the C-shaped wire clamps.

One end of the flexible high-voltage line is connected to the telescopic tube of the diversion line, the other end is connected to the diversion line clip, and the hanging ring of the diversion line clip is connected to the diversion line clip.

The shunt wire clamp hanging ring is U-shaped, and the shunt wire clip hanging ring is hung on the shunt line main pipe or the shunt line telescopic tube.

A method for vertically arranging 10kV overhead lines with load to replace switches on poles, specifically comprising the following steps:

1) Install the cross-arm fixing frame of the distribution line on the cross-arm of the middle layer of the vertically arranged line, so that it is connected with the cross-arm through the cross-arm connecting plate clamp, and the cross-arm insulation hook on the cross-arm fixing frame of the shunt line Clamped and positioned with the cross-arm, the hooking force of the cross-arm insulation hook is used as a fulcrum to balance the gravity of the three-component streamline assembly on the other side of the cross-arm fixture on the cross-arm;

2) Install the three-component flow line assembly into the three distribution line seats on the cross-arm fixing frame of the distribution line respectively, and the main pipe of the distribution line is sealed by an insulating sealing door;

3) Lead three pairs of soft high-voltage lines from both ends of the three-component streamline assembly to the upper line, middle line, and lower line of the three-phase high-voltage line. The ends of the soft high-voltage lines are connected to the corresponding high-voltage lines by shunt clamps.

In step 3, lead three pairs of soft high-voltage wires from both ends of the three-component flow line assembly to the upper line, middle line, and lower line of the three-phase high-voltage line. For the upper-line high-voltage line, the shunt line assembly farthest from the pole on the cross-arm fixing frame of the shunt line is correspondingly connected to the high-voltage line of the lower line, and the shunt line assembly in the middle of the cross-arm fixing frame of the shunt line is correspondingly connected to the high-voltage line of the middle line.

Compared with the prior art, the beneficial effects of the utility model are:

1) The cross-arm fixing frame of the shunt line can be installed and disassembled by the insulating rod operation method. The current carrying capacity of the shunt line assembly meets the operation requirements and has sufficient mechanical strength. The method of hooking the operating ring with the gun operating rod can be used Screw operating mechanism, simple structure, easy to operate;

2) It can save 30% of operation time, improve work efficiency, ensure the safety of operation, and reduce labor intensity;

3) It can be disassembled and assembled for various job sites, with strong versatility and applicability. The bypass load switch can be used for the connection and disconnection of the bypass system for small load lines, fully ensuring the interphase of the three-phase drainage lines of the bypass system distance, the bypass drain line is easy to carry and other goals.

Description of drawings

Fig. 1 is a schematic view of the structure of the utility model and a front view of the working state;

Fig. 2 is a schematic view of the structure of the utility model and a side view of the working state;

Fig. 3 is a schematic view of the structure of the utility model and a top view of the working state;

Fig. 4 is a structural schematic diagram of the cross-arm fixing frame of the diversion line of the present invention;

Fig. 5 is a structural schematic diagram of the shunt assembly of the utility model;

Fig. 6 is a structural schematic diagram of the utility model shunt wire clip;

Fig. 7 is a schematic diagram of the structure of the insulating operating rod of the present invention;

Fig. 8 is a structural schematic diagram of the cross-arm insulation hook of the utility model.

In the figure: 1-electric pole, 2-high voltage line, 3-column switch, 4-shunting line cross-arm fixing frame, 5-shunting line assembly, 6-cross arm, 7-fastening rod tube, 8-shake Arm, 9-Inner hexagon head, 10-Hinge screw, 11-Handle, 41-Shunt line support tube, 42-Shunt line seat, 43-Insulation sealing card, 44-Clamp hoop, 45-Crossarm insulation hook , 46-Cross-arm connecting plate clip, 47-Screw ejector rod, 48-Top block, 51-Shunt line supervisor, 52-Location ring, 53-Sleeve, 54-Shunt line expansion tube, 55-Shunt Wire clip hanging ring, 56-soft high-voltage wire, 57-shunt wire clip, 571-C-shaped wire chuck, 572-V-shaped top block, 573-ejector bolt, 451-hook body.

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with accompanying drawing:

As shown in Figures 1 to 4, the pole-mounted switchgear is replaced with load on a vertically arranged 10kV overhead line, including a shunt line cross-arm fixing frame 4, a shunt line assembly 5, and an insulating operating rod.

There are three sets of shunt line assembly 5, shunt line assembly 5 includes shunt line supervisor 51 and soft high-voltage wire 56, two ends of shunt line supervisor 51 are respectively connected with a soft high-voltage wire 56, and one end of soft high-tension line is connected with shunt line supervisor 51. The other end of the soft high-voltage wire is connected to the corresponding high-voltage wire 2 through a shunt clip 57.

An I-shaped locating ring 52 is provided at the junction of the shunt wire assembly 5 and the shunt wire cross-arm fixing frame 4; The seat 42 is provided with an insulating sealing card 43 to prevent the shunt line from falling off.

The cross-arm fixing frame 4 of the shunt line is connected with the cross-arm 6 through the cross-arm connecting board clip 46, the cross-arm connecting board clip 46 is connected with the screw ejector rod 47, and the top block 48 is arranged at one end of the screw ejector rod 47, and the screw The push rod 47 is matched with the inner hexagonal sleeve at the end of the insulating operating rod, and is used to adjust the position of the top block 48, and a clamping shape capable of clamping the cross arm 6 is formed between the cross-arm connecting plate clip 46 and the top block 48 , to realize the clamping or loosening of the cross-arm fixing frame 4 and the cross-arm 6 of the shunt line.

The end of the shunt line main pipe 51 is provided with a U-shaped shunt wire clip hanging ring 55, the quantity is 2, each one on the left and right, and is used for fixing the shunt wire clip 57 during the non-working state. The utility model is used for vertically arranging 10kV overhead lines with load to replace the switch on the column. When it is necessary to replace the switch 3 on the column with load, the shunt line is used to form a bypass, which can fully ensure the phase interval of the three-phase drainage line of the bypass system. distance, reducing the amount of insulation shielding.

See Fig. 5, diversion line main pipe 51 both sides can also be provided with diversion line telescopic pipe 54, the diversion line telescopic pipe 54 is connected with the diversion line main pipe 51 by pipe sleeve 53, the diversion line telescopic pipe 54 and Between the branch line main pipes 51 is a socket telescopic structure. This is a form with an expandable length. A U-shaped shunt clip hanging ring 55 is provided at the end of the shunt wire telescopic tube 54 for fixing the shunt wire clip 57 in a non-working state.

As shown in Fig. 6, the shunt clamp 57 includes a C-shaped clamp head 571, a V-shaped top block 572 and a jack bolt 573. The wire clamps 571 are connected, and a clamping space for accommodating the high-voltage wire 2 is formed between the V-shaped top block 572 and the C-shaped clamp 571. The clamping force of this structure is adjustable to ensure good contact with load.

See FIG. 7 , the insulating operating rod is made up of a fastening rod tube 7 , an inner hexagon head 9 at one end and a rocker 8 at the other end, and the rocker 8 is connected with the handle 11 through a hinge screw 10 . Its inner hexagon head 9 is used in conjunction with the screw ejector rod 47 on the cross-arm connecting board clip 46, which can be disassembled and assembled for various job sites, and has strong versatility and applicability.

As shown in Fig. 8, a cross-arm insulating hook 45 is provided between the shunt line cross-arm fixing frame 4 and the cross-arm 6, and a hook body 451 is respectively arranged symmetrically on the lower part of the cross-arm insulating hook. Edge shape matches.

The working process of the present utility model is as follows:

1) Install the cross-arm fixing frame 4 of the distribution line on the cross-arm 6 of the middle layer of the vertically arranged line, so that it is connected with the steel material of the cross-arm through the cross-arm connecting plate clamp 46, and the cross-arm fixing frame 4 of the distribution line The cross-arm insulating hook 45 and the cross-arm 6 steel materials are clamped and positioned, and the hooking force of the cross-arm insulating hook 45 is used as a fulcrum relative to the cross-arm connecting plate clip 46 and the three parts on the other side of the cross-arm fixing frame 4 of the shunt line. The gravity of the component flow line assembly 5 maintains the balance of forces.

2) Put the three-component flow line assembly 5 into the three shunt wire holders 42 on the shunt wire cross-arm fixing frame 4 respectively, the shunt wire assembly 5 is sealed by the insulating sealing door 43, and the shunt wire holder 42 can ensure that the spacing of the three shunt lines meets the insulation requirements;

3) Lead three pairs of soft high-voltage lines 56 from both ends of the three-component streamline assembly 5 to the upper line, middle line, and lower line of the three-phase high-voltage line 2, and the ends of the soft high-voltage lines are connected to the corresponding high-voltage lines 2 by shunt clamps 57 , the shunt line assembly 5 closest to the electric pole 1 on the shunt line cross-arm fixing frame 4 is correspondingly connected to the upper line high-voltage line, and the shunt line assembly 5 on the shunt line cross-arm fixing frame 4 farthest from the electric pole 1 is correspondingly connected to the down line The high-voltage line and the shunt line are connected to the high-voltage line of the middle line correspondingly to the shunt line assembly 5 located in the center on the cross-arm fixing frame. This configuration realizes the purpose of shunting when the switch on the pole is replaced with load by the insulating pole operation method, reduces the amount of shielding work, and significantly reduces the scope and time of power outages.

The diversion line cross-arm fixing frame 4 of the utility model can be installed and disassembled by the insulating rod operation method, the current carrying capacity of the diversion line assembly 5 meets the operation requirements, and has sufficient mechanical strength, and can be hooked and operated by the gun operating lever. The operating mechanism is screwed in the form of a ring, which is simple in structure and easy to operate. It can save operation time by 30%, improve work efficiency, ensure the safety of operation, and have low labor intensity; it can be disassembled and combined for various operation sites, with strong versatility and applicability, and the small load line can be operated without the bypass load switch The connection and disconnection of the bypass system fully guarantee the phase-to-phase distance of the three-phase drainage lines of the bypass system, and the bypass drainage lines are easy to carry.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (8)

1. being arranged vertically 10kV overhead transmission line on-load replaces on-pole switch device, which is characterized in that solid including shunt line cross-arm Determine frame, shunt line component and insulating bar；Shunt line component described in multiple groups is fixed on shunt line cross-arm fixed frame, is shunted Line component includes shunt line supervisor and soft high-voltage line, and shunt line supervisor both ends respectively connect a soft high-voltage line, soft high-voltage line one end Supervisor is connected with shunt line, and the other end is connected with high-voltage line；The shunt line cross-arm fixed frame is fixed on cross-arm, and shunt line is horizontal Load fixed frame is adapted to insulating bar, and shunt line cross-arm fixed frame is fixed on cross-arm by insulating bar.

2. vertical arrangement 10kV overhead transmission line on-load according to claim 1 replaces on-pole switch device, feature exists In the shunt line cross-arm fixed frame includes shunt line support tube, shunt line seat, insulator seal badge, detent hoop, cross-arm insulation Hook, cross-arm yoke plate fastener, screw mandril and jacking block；Shunt line seat, detent hoop and cross-arm insulation hook and are sequentially fixed at shunting On line support tube.

3. vertical arrangement 10kV overhead transmission line on-load according to claim 2 replaces on-pole switch device, feature exists In the cross-arm insulation hooks lower part bilateral symmetry and is respectively provided with a coupler body, and coupler body shape is adapted to cross-arm.

4. vertical arrangement 10kV overhead transmission line on-load according to claim 2 replaces on-pole switch device, feature exists In the insulator seal badge is mounted on shunt line seat；The cross-arm yoke plate fastener is fixed on detent hoop, the installation of screw mandril On cross-arm yoke plate fastener, jacking block is fixed on screw mandril.

5. vertical arrangement 10kV overhead transmission line on-load according to claim 1 replaces on-pole switch device, feature exists In the shunt line component further includes positioning ring, pipe sleeve, shunt line telescoping tube, shunting wire clamp link and shunting wire clamp；It is described Shunt line telescoping tube is connected by pipe sleeve with shunt line supervisor, is the flexible knot of socket joint between shunt line telescoping tube and shunt line supervisor Structure.

6. vertical arrangement 10kV overhead transmission line on-load according to claim 5 replaces on-pole switch device, feature exists In the shunting wire clamp includes C-shaped wire clamp head, V-arrangement jacking block and mandril bolt, and V-arrangement jacking block is placed in mandril bolt end, mandril spiral shell Bolt is connected with C-shaped wire clamp head, and the grasping part for accommodating high-voltage line is formed between V-arrangement jacking block and C-shaped wire clamp head.

7. vertical arrangement 10kV overhead transmission line on-load according to claim 5 replaces on-pole switch device, feature exists In described soft high-voltage line one end is connected with shunt line telescoping tube, and the other end is connected with shunting wire clamp, shunting wire clamp link and shunting Wire clamp is connected.

8. vertical arrangement 10kV overhead transmission line on-load according to claim 5 replaces on-pole switch device, feature exists Be in, the shunting wire clamp link it is U-shaped, shunting wire clamp link is hung on shunt line supervisor or shunt line telescoping tube.