CN206401754U - A kind of indoor substation maintenance power box - Google Patents

Abstract

The utility model have devised the novel indoor maintenance power box suitable for modularization intelligent transformer station of new generation, including casing, in casing safety screen of the current supply cable by gap is reserved provided with one with box back surface, electrical appliance and binding post and power outlet in casing are located at the outer surface of safety screen, the power line of electrical appliance and binding post and power outlet in case is located at the back side of safety screen, and power line is extended to outside casing through elongated slot.It is electrically connected with casing positioned at power access end with earth leakage protective breaker.The utility model meets use demand and the O＆M custom of New Generation of Intelligent transformer station modularization construction demand, operation maintenance personnel and maintenance of equipment, it is ensured that the personal safety of operation maintenance personnel and the operation safety of maintenance of equipment.Utility model repair and maintenance itself is convenient.Miniature circuit breaker is easy to the superior and the subordinate's protective seletion cooperation, is conducive to the configuration of station electricity consumption AC system.

Description

A kind of indoor substation maintenance power box

Technical field

The utility model is related to Substation Station electricity system technical field, more particularly to 110kV indoor substations maintenance electricity Source box technology field.

Background technology

Maintenance power box in transformer station provides power supply for the maintenance of equipment that operation maintenance personnel is carried, and is that operation maintenance personnel often makes Device, its personal safety being smoothed out with operation maintenance personnel that is safe and reliable, stabilizing to maintenance work, which is provided with, tries hard to keep Barrier.At present, State Grid Corporation of China promotes the modularization construction of New Generation of Intelligent transformer station, modular transformer substation and tradition on a large scale Transformer station have very big difference in terms of building structure, Ground arrangement, indoor maintenance power box it is also proposed it is new will Ask.Maintenance power box in traditional 110kV transformer stations is used as protection device using fuse, although fuse can meet inspection The basic demand that power supply box is used is repaiied, but in operation maintenance for many years, shows following problem：

It is that operation maintenance is made troubles 1. needing integral replacing after fuse fuse opening；

2. maintenance power box is not used, socket, binding post are powered for a long time, there is potential safety hazard；

3. it is unsatisfactory for the O＆M demand being powered again after the connection of operation maintenance personnel maintenance of equipment is finished；

4. without creepage protection function；

5. it is not easy to Graded coordination.

There is also some following deficiency in terms of chair mechanisms, equipment arrangement for traditional maintenance power box：

1. being mostly installation by adhering, in bottom half perforate, by pipe fitting cabling pre-buried within the walls, it is not suitable for The fabricated construction of modular transformer substation building；

Plus blocked outside 2. distribution and binding post are exposed in case, there is larger potential safety hazard；

3. box equipment arrangement is mixed and disorderly, it is not easy to operation maintenance personnel and uses.

Therefore, it is the modularization construction of adaptation New Generation of Intelligent transformer station, design of the present utility model is very necessary.

Utility model content

The utility model exist in use for traditional 110kV indoor substation maintenance power boxes some ask Topic, it is proposed that optimization and improvement project, have devised the novel indoor maintenance electricity suitable for modularization intelligent transformer station of new generation Source case, the problem of effectively solving traditional maintenance power box, having better met the use of maintenance of equipment and operation maintenance personnel needs Ask.

To achieve these goals, technical solution adopted in the utility model is：

A kind of indoor substation maintenance power box, including casing, current supply cable is reserved in casing provided with one with box back surface By the safety screen in gap, electrical appliance and binding post and power outlet in casing are located at the outer surface of safety screen, The power line of electrical appliance and binding post and power outlet in case is located at the back side of safety screen, and power line prolongs through elongated slot Extend outside casing.

The elongated slot passed through for conductor wire is offered at the back side of casing, is separated cabinets cavity by a dividing plate in casing Into two chambers, wherein installation and repairing power outlet in a chamber indoor location binding post, another chamber.

The miniature circuit breaker with creepage protection function is configured with casing, device parameter is calculated and O＆M list according to design Position demand configuration dimension unit demand configuration.

Chamber door is hinged with the positive both sides of casing, the chamber door is opposite opened structure.

Be provided with the outside of binding post cover binding post prevent the protective cover of operation maintenance personnel false touch binding post, guarantor Shield is arranged on safety screen upper plate.

Compared with traditional maintenance power box, the utility model has advantages below：

1. when external fault causes miniature circuit breaker to be threaded off, the breaker input that can again be closed a floodgate in trouble shooting makes With without changing；

2. can disconnect miniature circuit breaker when usually the utility model is not used, socket, binding post are not charged；

3. when using the utility model, the situation that operation maintenance personnel can disconnect in socket, binding post miniature circuit breaker Lower connection maintenance of equipment, ensure equipment connection debug can come into operation after be closed again miniature circuit breaker, better meet The use demand of operation maintenance personnel, it is ensured that operation maintenance personnel and the safety of maintenance of equipment；

4. socket, binding post miniature circuit breaker band creepage protection function, effectively prevent the person from getting an electric shock and electrical fire；

5. miniature circuit breaker is easy to the superior and the subordinate's protective seletion cooperation, be conducive to the configuration of station electricity consumption AC system；

6. in-wall mounting, box back surface perforate, are easy to the inlet wire in assembled architecture；

7. box equipment arrangement is regular, function division clearly, is easy to operation maintenance personnel to use；

8. increase safety screen, it is to avoid distribution in operation maintenance personnel contact case, and the setting protective cover at binding post, it is to avoid Operation maintenance personnel directly contacts powered position, it is ensured that the safety of equipment and operation maintenance personnel.

Brief description of the drawings

Fig. 1 is front view of the present utility model；

Fig. 2 is rearview of the present utility model；

Fig. 3 is the utility model body structure top view；

Fig. 4 is the utility model electric equipments layout drawing；

Fig. 5 is the sectional view in A-A directions in Fig. 4；

Fig. 6 is the sectional view in B-B directions in Fig. 4.

Embodiment

The utility model is described further with reference to embodiment.

As shown in figs 1 to 6, to meet the modularized design requirement of New Generation of Intelligent transformer station, the utility model patent is main Design is optimized to body structure and maintenance power configuration, to provide various, safe and reliable maintenance for maintenance of equipment Power supply.

A kind of indoor substation maintenance power box, including casing, current supply cable is reserved in casing provided with one with box back surface By the safety screen in gap, electrical appliance and binding post and power outlet in casing are located at the outer surface of safety screen, The power line of electrical appliance and binding post and power outlet in case is located at the back side of safety screen, and power line prolongs through elongated slot Extend outside casing.The elongated slot passed through for conductor wire is offered at the back side of casing, by a dividing plate by casing in casing Chamber is separated into two chambers, wherein installation and repairing power outlet in a chamber indoor location binding post, another chamber.In casing The miniature circuit breaker with creepage protection function is configured with, device parameter is calculated and O＆M unit demand configuration dimension unit according to design Demand is configured.Chamber door is hinged with the positive both sides of casing, the chamber door is opposite opened structure.Set in the outside of binding post There is cover binding post to prevent the protective cover of operation maintenance personnel false touch binding post, protective cover is arranged on safety screen upper plate.

Electrical room uses assembled architecture, cable cable installation in pipe in wall body interlayer to the utility model within doors.Assembling Formula construction wall is narrower, is not suitable for installation by adhering, and the utility model uses in-wall mounting, casing is fixed on into wall with screw On.Lower position perforate, is easy to cabling in box back surface.Dividing plate 2 is set in the middle of casing 1, preceding 2/3 space in case is divided into two Part, is designed using double door, and two parts can be used alone, and be independent of each other.Maintenance power supply is divided into socket and binding post Two classes, are arranged in two spaces.The connection of 1/3 space, is easy to distribution in case after in case.Peace is set in case before distribution region Position, size perforate on full baffle plate 3, baffle plate according to miniature circuit breaker, socket and binding post.In addition, at binding post Transparent protective shield 4 is set.

The utility model uses TN-C-S systems, 1 inlet wire miniature circuit breaker of configuration, 5 sockets, binding post and phase Answer the earth leakage protective miniature circuit breaker of loop band.According to the working experience of O＆M unit, and take into full account that O＆M needs and overhauled Power supply feature, the utility model configures 2 exchange 380V 50A sockets, including 15 pole and 14 grades of socket, and in 5 grades of sockets Point 15 binding post (A/B/C/N/PE) in parallel, corresponding miniature circuit breaker is 4P 50A D type breakers.1 friendship of configuration 380V 32A 4 pole sockets are flowed, miniature circuit breaker is 4P 32A D type breakers.2 alternating current 220V 32A socket is configured, Including 13 pole and 12 pole socket, and in 3 pole socket points, 13 binding post (A/N/PE) in parallel, corresponding miniature circuit breaker For 2P 32A D type breakers.Such configuration covers substation operation and safeguards required different capacity, various forms of inspections Power supply is repaiied, and equipped with binding post, PE lines is drawn, used for equipment ground, wiring is flexibly, easy to use.According to inspection The allocation plan of power supply miniature circuit breaker is repaiied, is computed, takes into full account that protective seletion coordinates, selection exchange 380V 3P 63A C-type breaker as lead-in circuit breaker.

The utility model patent fully meets New Generation of Intelligent transformer station modularization construction demand, operation maintenance personnel and maintenance Use demand and the O＆M custom of equipment, it is ensured that the personal safety of operation maintenance personnel and the operation safety of maintenance of equipment.It is practical new Type repair and maintenance itself is convenient.

General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, it is in the art common on the premise of the utility model spirit and scope are not departed from Technical staff simple change and replace all be within protection domain of the present utility model.

Claims (5)

1. a kind of indoor substation maintenance power box, including casing, it is characterised in that：It is pre- with box back surface provided with one in casing Electrical appliance and binding post in safety screen of the current supply cable by gap, casing and power outlet is stayed to be located at safety screen The power line of electrical appliance and binding post and power outlet in outer surface, case is located at the back side of safety screen, and power line is worn Elongated slot is crossed to extend to outside casing.

2. a kind of indoor substation maintenance power box according to claim 1, it is characterised in that：Opened up at the back side of casing There is the elongated slot passed through for conductor wire, cabinets cavity is separated into by two chambers by a dividing plate in casing, wherein in a chamber Installation and repairing power outlet in binding post, another chamber is installed.

3. a kind of indoor substation maintenance power box according to claim 1, it is characterised in that：Band is configured with casing The miniature circuit breaker of creepage protection function, device parameter is calculated according to design and O＆M unit demand configuration dimension unit demand is matched somebody with somebody Put.

4. a kind of indoor substation maintenance power box according to claim 1, it is characterised in that：Positive the two of casing Side is hinged with chamber door, and the chamber door is opposite opened structure.

5. a kind of indoor substation maintenance power box according to any one claim in claim 1-4, its feature It is：Be provided with the outside of binding post cover binding post prevent the protective cover of operation maintenance personnel false touch binding post, protection Cover is arranged on safety screen upper plate.