CN208225828U - On-load replaces fuse switch auxiliary device - Google Patents

Abstract

The utility model discloses an auxiliary device for replacing a drop-out fuse with load. The auxiliary device includes a pole fixing seat (1), an insulating support rod (4), a section switch (5), and a first multifunctional clamp head for drainage. Line (16) and the second multifunctional pincer head drain wire (22), one of the tops of the insulating support rod (4) is equipped with a pole holder (1), and the section switch ( 5), the first multifunctional pincer drain wire (16) and the second multifunctional pincer drain wire (22) are respectively connected to the subsection switch (5), and the whole constitutes an auxiliary device for replacing the drop-out fuse with load. The utility model realizes the load transfer by means of the breaking switch, solves the problem of preventing the fuse of the drop-type fuse from blowing during the load transfer, effectively avoids the damage to the operators and equipment caused by the arc burning during the load transfer and under extreme conditions, and realizes complete replacement without power failure The 10kV distribution transformer drop-out fuse further expands the technology of non-stop operation and reduces power outages for users, which is of great significance.

Description

Auxiliary Device for On-Load Replacement of Dropout Fuse

technical field

The utility model belongs to the application technical field of distribution network non-stop operation, in particular to an auxiliary device for replacing a drop-out fuse with load, such as a 10kV distribution network for non-stop replacement of a drop-out fuse, and its operation is safe and reliable.

Background technique

With the rapid development of social economy and the continuous improvement of people's living standards, the society's demand for electric energy is also increasing, and the quality requirements for electric energy are also getting higher and higher. Guaranteeing uninterrupted power supply has become the basis for power companies to provide customers with high-quality services. one of the important criteria. This requires a high-quality and reliable power supply system. The 10kV distribution network is an important part of the power system and a load center. It has the characteristics of large power consumption, high load density, and multiple points. The quality and power supply reliability requirements are relatively high, while the insulation strength of 10kV distribution network equipment is relatively low, and there are many power supply equipment. Drop-out fuses, as one of the most widely used devices, will have problems such as aging and need to be replaced in a state-of-the-art manner. Therefore, the maintenance workload is heavy and the number of power outages is frequent.

In order to reduce the impact of power outages on customers' electricity consumption due to faults, live work has been vigorously carried out in the maintenance of 10kV distribution network in recent years, mainly including insulating rod operation method and insulating glove operation method. Live work has played a great role in improving the reliability of power supply and ensuring the power consumption of customers. However, since the current live work is to reduce the power load of all customers behind the operating point (load side), the line is under no-load status. , the operation can be carried out, which affects the electricity consumption of customers behind the operation point, and the power supply is reduced, which fails to achieve the real non-stop operation. It cannot meet the company's requirement of "building a first-class distribution network". Therefore, it is of great significance to develop a new tool, use the tool to replace the drop-out fuse with load, solve the power consumption problem of users behind the operation point, and carry out uninterrupted power supply work.

If you want to carry out non-stop replacement of drop-out fuses, the difficulty mainly lies in: 1) how to control the safe distance between the live drain wire terminal and the charged body and grounding body; Injuries caused by arcing to operators and equipment; 3) How to solve the problem that the transformer is responsible for power supply without power failure at all.

Contents of the invention

The purpose of this utility model is: to propose an auxiliary device for replacing drop-out fuses with load, which can realize load transfer by means of breaking switches, solve the problem of preventing the fuses of drop-out fuses from blowing during load transfer, and effectively avoid load transfer and extreme conditions. It is of great significance to realize the replacement of 10kV distribution transformer drop-out fuses without power failure, further expand the technology of power-free operation, and reduce power outages for users.

The technical solution of the utility model is: the auxiliary device includes a pole fixing seat, an insulating support rod, a segment switch, a first multi-function clamp head drain wire and a second multi-function clamp head drain wire, one of the insulating support rods The pole fixing seat is installed on the top, and the segment switch is installed on the rod body of the insulating support rod. The first multi-function clamp head drain line and the second multi-function clamp head drain line are respectively connected to the segment switch, and the whole constitutes a load replacement drop type Auxiliary device for fuses.

Wherein, the material of the insulating support rod is epoxy resin, adopts a hollow structure, has an outer diameter of 10 cm, an inner diameter of 5 cm, and a length of 150 cm.

Wherein, the pole fixing base includes a T-shaped base, an insulating braid and a quick ratchet lock, the T-shaped base is directly fixed on the top of the insulating support rod, one end of the insulating braid is fixed on the T-shaped base, and the insulating braid The other end is fixed on the fast ratchet lock, the quick ratchet lock is installed on the T-shaped base, and the T-shaped base is fixed on the pole through the insulating braid and the quick ratchet lock.

Wherein, the contact surface between the T-shaped base and the pole is designed to be arc-shaped; the insulating braid is a high-strength insulating braid with a length of 130 cm.

Wherein, the section switch includes an insulator, a knife switch, a first quick connection pile, a second quick connection pile, a fixed base and a movable base; the movable base is directly set on the insulating support rod, and the fixed base The movable base is connected with the insulating support rod; the insulator is directly fixed on the fixed base through the second bolt; the knife switch is directly fixed on the insulator through the first bolt; the first quick connection pile is directly fixed on the knife switch through the third bolt The upper end; the second quick connection pile is directly fixed on the lower end of the knife gate through the fourth bolt.

Wherein, the movable base is provided with a base, and the base is provided with two parallel protruding clip strips.

Wherein, the movable base is provided with a U-shaped card slot.

Wherein, the base of the segmental switch is a split type, which are respectively a fixed base and a movable base; the fixed base is 160mm long and 65mm wide; the movable base is designed as an embedded U-shaped slot, and the length of the slot is 60mm, the width of the slot is 30mm, the diameter hole at the bottom of the slot is 10mm, and the fixed base is connected with a single bolt, and the diameter of the buckle is 95mm; the movable base and the insulating support rod are adjustable connections, which can be adjusted arbitrarily according to the technical requirements of the job site The distance from the pole; the knife gate has a self-locking mechanism to prevent the knife gate from falling off during the flow, and the knife gate can meet the circulation requirements during load transfer when the knife gate is opened and closed; the first quick connection pile is 20cm long and 4cm in diameter, which is detachable. It is tightly connected with the upper end of the knife gate; the second quick connection pile is 20cm long and 4cm in diameter, which is detachable, and is tightly connected with the lower end of the knife gate.

Wherein, the first multifunctional pliers drain wire includes a first insulated operating rod, a second insulated operating rod, a first drain wire body, a first multifunctional pliers head and a second multifunctional pliers head; the first drain wire The two ends of the body are respectively equipped with a first multifunctional pliers head and a second multifunctional pliers head, a first insulating operating rod is installed on the first multifunctional pliers head, and a second insulating operating rod is installed on the second multifunctional pliers head; One end of the drainage wire of the multi-function clamp head is directly connected to the wire on the grid side through the first multi-function clamp head, and the other end of the drainage wire of the first multi-function clamp head is directly connected to the first quick connection pile of the segment switch through the second multi-function clamp head .

Wherein, the second multifunctional pliers drain wire includes a third insulated operating rod, a fourth insulated operating rod, a second drain wire body, a third multifunctional pliers head, and a fourth multifunctional pliers head; the second drain wire The two ends of the body are respectively equipped with a third multi-functional pliers head and a fourth multi-functional pliers head, a third insulating operating rod is installed on the third multi-functional pliers head, and a fourth insulating operating rod is installed on the fourth multi-functional pliers head; One end of the drainage wire of the multi-function clamp head is directly connected to the second quick connection pile of the segment switch through the third multi-function clamp head, and the other end of the drainage wire of the second multi-function clamp head is directly connected to the high-voltage pile head of the transformer through the fourth multi-function clamp head. connect.

Among them, the connectors of the first multi-functional pincer head drain wire and the second multi-function pincer head drain wire are multi-functional pincer joints, and the connection between the drain wire and the charged body is completed by means of an insulating operating rod; the first drain wire body, the second The main body of the drain wire is an annealed copper wire with a diameter of 30mm; the length of the first insulating operating rod, the second insulating operating rod, the third insulating operating rod, and the fourth insulating operating rod is 43 cm.

Concrete operation steps of the present utility model are as follows:

Step A: Install the pole fixing seat, insulating support rod, section switch, first multi-function clamp head drain wire, second multi-function clamp head drain wire, insulation isolation baffle, and fan-shaped baffle in place according to the above connection method; The insulation isolation baffle is used for the insulation isolation between the dropout fuse and the dropout fuse and between the dropout fuse and the pole, and the fan-shaped baffle is used for the insulation isolation between the upper and lower pile heads of the dropout fuse and the cross arm;

Step B: Close the knife switch to prepare for load transfer;

Step C: pull apart the drop-out fuse to be replaced to realize the first load transfer;

Step D: Remove the drop-out fuse to be replaced, and install a new drop-out fuse;

Step E: Close the new drop-out fuse and prepare for the second load transfer;

Step F: pull open the switch to realize the second load transfer;

Step G: Remove the pole fixing seat, insulating support rod, section switch, first multifunctional clamp head drainage wire, second multifunctional clamp head drainage wire, insulation isolation baffle, and fan-shaped baffle.

The utility model has the advantages of simple structure, low cost, easy operation, stable operation, and high safety, realizes load transfer by means of a breaking switch, and solves the problem of preventing the blown fuse of a drop-type fuse during load transfer.

Description of drawings

Fig. 1 is the installation and use schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the section switch of Fig. 1;

FIG. 3 is a schematic diagram of the drainage wire of the multifunctional clamp head in FIG. 1 .

Detailed ways

Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing.

As shown in Figures 1-3, the auxiliary device includes a pole holder 1, an insulating support rod 4, a section switch 5, a first multifunctional clamp head drain wire 16 and a second multifunctional clamp head drain wire 22, and the insulation support One of the tops of the rod 4 is equipped with a pole holder 1, and a segment switch 5 is installed on the body of the insulating support rod 4, and the first multifunctional pincer drain wire 16 and the second multifunctional pincer drain wire 22 are respectively connected to the subsection On the switch 5, an auxiliary device for replacing the drop-out fuse with load is formed as a whole.

Wherein, the material of the insulating support rod 4 is epoxy resin, adopts a hollow structure, has an outer diameter of 10 cm, an inner diameter of 5 cm, and a length of 150 cm.

Wherein, the pole fixing base 1 includes a T-shaped base 2, an insulating braid 3 and a quick ratchet lock 31, the T-shaped base 2 is directly fixed on the top of the insulating support rod 4, and one end of the insulating braid 3 is fixed on the T On the T-shaped base 2, the other end of the insulating braid 3 is fixed on the quick ratchet lock 31, and the quick ratchet lock 31 is installed on the T-shaped base 2, and the T-shaped base 2 is fixed with the fast ratchet lock 31 through the insulating braid 3 on the pole.

Wherein, the contact surface between the T-shaped base 2 and the pole is designed to be arc-shaped; the insulating braid 3 is a high-strength insulating braid with a length of 130 cm.

Wherein, the section switch 5 includes an insulator 6, a knife switch 7, a first quick connection pile 8, a second quick connection pile 9, a fixed base 10 and a movable base 11; the movable base 11 is directly set on the On the insulating support rod 4, the fixed base 10 is connected with the insulating support rod 4 through the movable base 11; the insulator 6 is directly fixed on the fixed base 10 through the second bolt 13; the knife switch 7 is directly fixed on the fixed base 10 through the first bolt 12 On the insulator 6 ; the first quick connection pile 8 is directly fixed on the upper end of the knife switch 7 through the third bolt 14 ; the second quick connection pile 9 is directly fixed on the lower end of the knife switch 7 through the fourth bolt 15 .

Wherein, the movable base 11 is provided with a base 28 , and the base 28 is provided with two parallel protruding clamping strips 29 .

Wherein, the movable base 11 is provided with a card slot 30 .

Wherein, the base of the section switch 5 is a split type, which are respectively a fixed base 10 and a movable base 11; the fixed base 10 is 160mm long and 65mm wide; the movable base 11 is designed as an embedded U-shaped card Slot, the length of the card slot is 60mm, the width of the card slot is 30mm, the bottom of the card slot has a diameter hole of 10mm, and the fixed base 10 is connected with a single bolt 31, and the diameter of the buckle is 95mm; the movable base 11 and the insulating support rod 4 are adjustable connections According to the technical requirements of the job site, the distance from the pole can be adjusted arbitrarily; the knife switch 7 has a self-locking mechanism to prevent the knife switch from falling off during flow, and the switch 7 can meet the circulation requirements when the load is transferred; the first quick connection pile 8 long 20cm, diameter 4cm, is detachable, wraps tightly connected with knife gate 7 upper ends;

Wherein, the first multifunctional pliers drain wire 16 includes a first insulating operating rod 17, a second insulating operating rod 18, a first draining wire body 19, a first multifunctional pliers head 20 and a second multifunctional pliers head 21; the first multifunctional pliers 20 and the second multifunctional pliers 21 are respectively installed at both ends of the first drain wire body 19, and the first insulating operating rod 17 is installed on the first multifunctional pliers 20, and the second multifunctional pliers The second insulated operating rod 18 is installed on the head 21; one end of the first multifunctional pliers drain wire 16 is directly connected with the grid side wire through the first multifunctional pliers 20, and the other end of the first multifunctional pliers drain wire 16 is passed through the second The multifunctional pliers head 21 is directly connected to the first quick connection pile 8 of the section switch 5 .

Wherein, the second multifunctional pliers drain wire 22 includes a third insulating operating rod 23, a fourth insulating operating rod 24, a second draining wire body 25, a third multifunctional pliers head 26 and a fourth multifunctional pliers head 27; the two ends of the second drain wire body 25 are respectively equipped with the third multi-functional pliers 26 and the fourth multi-functional pliers 27, the third multi-functional pliers 26 is equipped with the third insulating operating rod 23, the fourth multi-functional pliers The fourth insulated operating rod 24 is installed on the head 27; one end of the second multifunctional pliers drain wire 22 is directly connected with the second quick connection pile 9 of the segment switch 5 through the third multifunctional pliers 26, and the second multifunctional pliers The other end of the drain wire 22 is directly connected to the transformer high-voltage pile head through the fourth multifunctional clamp head 27 .

Among them, the connectors of the first multi-function pincer head drain wire 16 and the second multi-function pincer head drain wire 22 are multi-functional pincer joints, and the connection between the drain wire and the charged body is completed by means of an insulating operating rod; the first drain wire body 19 , The second drain wire body 25 is an annealed copper wire with a diameter of 30mm; the length of the first insulating operating rod 17, the second insulating operating rod 18, the third insulating operating rod 23, and the fourth insulating operating rod 24 is 43 cm.

Concrete operation steps of the present utility model are as follows:

Step A: Connect the electric pole fixing seat 1, the insulating support rod 4, the section switch 5, the first multifunctional clamp head drain wire 16, the second multifunctional clamp head drain wire 22, and the insulation isolation baffle and the sector baffle according to the above The connection method is installed in place; the insulation isolation baffle is used for the insulation isolation between the drop-out fuse and the drop-out fuse and between the drop-out fuse and the pole, and the fan-shaped baffle is used for the drop-out fuse. Insulation isolation;

Step B: Close the knife switch 7 to prepare for load transfer;

Step C: pull apart the drop-out fuse to be replaced to realize the first load transfer;

Step D: Remove the drop-out fuse to be replaced, and install a new drop-out fuse;

Step E: Close the new drop-out fuse and prepare for the second load transfer;

Step F: pull open the switch 7 to realize the second load transfer;

Step G: Remove the pole fixing seat 1, the insulating support rod 4, the section switch 5, the first multi-functional clamp head drain wire 16, the second multi-function clamp head drain wire 22, the insulation isolation baffle, and the fan-shaped baffle.

Claims (10)

1. on-load replace fuse switch auxiliary device, it is characterized in that: the auxiliary device include electric pole fixing seat (1), Insulating support rod (4), block switch (5), the first multi-functional binding clip drainage thread (16) and the second multi-functional binding clip drainage thread (22), Electric pole fixing seat (1) is installed on a wherein top for insulating support rod (4), installs block switch on the body of rod of insulating support rod (4) (5), the first multi-functional binding clip drainage thread (16) and the second multi-functional binding clip drainage thread (22) are connected to block switch (5) On, the auxiliary device of overall structure on-load replacement fuse switch.

2. the auxiliary device of on-load replacement fuse switch according to claim 1, it is characterized in that: insulating support rod (4) material is epoxy resin, using hollow structure, outer diameter 10cm, internal diameter 5cm, length 150cm.

3. the auxiliary device of on-load replacement fuse switch according to claim 1, it is characterized in that: the electric pole Fixing seat (1) includes that T-type pedestal (2), insulation braid over braid (3) and quick ratchet lock (31), T-type pedestal (2) are directly anchored to The one end on the top of insulating support rod (4), insulation braid over braid (3) is fixed on T-type pedestal (2), the another of braid over braid (3) of insulating End is fixed on quick ratchet lock (31), and quick ratchet lock (31) is mounted on T-type pedestal (2), and T-type pedestal (2) passes through Insulation braid over braid (3) cooperates quick ratchet lock (31) to be fixed on electric pole.

4. the auxiliary device of on-load replacement fuse switch according to claim 3, it is characterized in that: the T-type Pedestal (2) and electric pole contact surface are designed as arc-shaped；Insulation braid over braid (3) is high-strength insulating braid over braid, length 130cm.

5. the auxiliary device of on-load replacement fuse switch according to claim 1, it is characterized in that: the segmentation Switch (5) includes that quickly connection stake (8), second quickly connect stake (9), fixed pedestal (10) for insulator (6), disconnecting link (7), first And movable base (11)；Movable base (11) is directly sleeved on insulating support rod (4), and fixed pedestal (10) passes through removable Moving base (11) is connect with insulating support rod (4)；Insulator (6) is directly anchored to fixed pedestal (10) by the second bolt (13) On；Disconnecting link (7) is directly anchored on insulator (6) by the first bolt (12)；First, which quickly connects stake (8), passes through third bolt (14) it is directly anchored to disconnecting link (7) upper end；Second, which quickly connects stake (9), is directly anchored to disconnecting link (7) by the 4th bolt (15) Lower end.

6. the auxiliary device of on-load replacement fuse switch according to claim 5, it is characterized in that: movable base (11) pedestal (28) are equipped with, pedestal (28) is equipped with the strip (29) of two parallel protrusions；Wherein, on movable base (11) Equipped with card slot (30).

7. the auxiliary device of on-load replacement fuse switch according to claim 5 or 6, it is characterized in that: described point The pedestal of Duan Kaiguan (5) is split type, respectively fixed pedestal (10) and movable base (11)；Fixed pedestal (10) is long 160mm, wide 65mm；Movable base (11) is designed as embedded U-shaped card slot, card slot length 60mm, card slot width 30mm, card slot Diametric hole 10mm is opened in bottom, with fixed pedestal (10) using being singly bolted, buckles diameter 95mm；Movable base (11) and absolutely Edge support rod (4) is adjustable connection type, is arbitrarily adjusted according to operation field technical requirements and electric pole distance；Disconnecting link (7) tool There is self-locking mechanism, disconnecting link falls off when avoiding through-flow, and when disconnecting link (7) division is able to satisfy circulation requirement when load transfer；First is fast Speed connection stake (8) long 20cm, diameter 4cm is mutually wrapped up with disconnecting link (7) upper end and closely being connect to be detachable；Second quickly connects Pile extension (9) long 20cm, diameter 4cm is mutually wrapped up with disconnecting link (7) lower end and closely being connect to be detachable.

8. the auxiliary device of on-load replacement fuse switch according to claim 1, it is characterized in that: described first Multi-functional binding clip drainage thread (16) includes the first insulating bar (17), the second insulating bar (18), the first drainage thread ontology (19), the first multi-functional binding clip (20) and the second multi-functional binding clip (21)；It installs respectively at the both ends of first drainage thread ontology (19) First multi-functional binding clip (20) and the second multi-functional binding clip (21) install the first insulating bar on the first multi-functional binding clip (20) (17), the second insulating bar (18) are installed on the second multi-functional binding clip (21)；First multi-functional binding clip drainage thread (16) one end It is directly connected to by the first multi-functional binding clip (20) with grid side conducting wire, first multi-functional binding clip drainage thread (16) other end passes through Second multi-functional binding clip (21) quickly connect stake (8) with the first of block switch (5) and is directly connected to.

9. the auxiliary device of on-load replacement fuse switch according to claim 1, it is characterized in that: described second Multi-functional binding clip drainage thread (22) includes third insulating bar (23), the 4th insulating bar (24), the second drainage thread ontology (25), the multi-functional binding clip of third (26) and the 4th multi-functional binding clip (27)；

The multi-functional binding clip of third (26) and the 4th multi-functional binding clip (27) are installed in the both ends of second drainage thread ontology (25) respectively, the Third insulating bar (23) are installed on three multi-functional binding clips (26), the 4th insulation operation of installation on the 4th multi-functional binding clip (27) Bar (24)；Second multi-functional binding clip drainage thread (22) one end passes through the multi-functional binding clip of third (26) and the second of block switch (5) Quickly connection stake (9) be directly connected to, second multi-functional binding clip drainage thread (22) other end by the 4th multi-functional binding clip (27) with Transformer high-voltage pile crown is directly connected to.

10. the auxiliary device of on-load replacement fuse switch according to claim 8 or claim 9, it is characterized in that: more than first Function binding clip drainage thread (16), the second multi-functional binding clip drainage thread (22) connector be multi-functional clamp terminal, by insulation Operating stick completes drainage thread and connect work with electrical body；First drainage thread ontology (19), the second drainage thread ontology (25) are soft copper Line, diameter 30mm；First insulating bar (17), the second insulating bar (18), third insulating bar (23), the 4th insulation Operating stick (24) long 43cm.