CN204067749U - Multi-function power panel - Google Patents

Abstract

The utility model discloses a kind of multifunction electric source tray, it comprises the power line be wrapped on power supply disks; The two ends of power supply disks are flexibly connected with support; The side of support and bottom are respectively equipped with telescopic lever and movable pulley; One end of power line is fixedly installed on the connecting terminal block of power supply disks inside, and to be contacted an earth leakage protective device by wire; The other end of power line is provided with relaying protection joint; Earth leakage protective device is connected with relaying protection interface and alternating current accessory power outlet respectively by wire; Relaying protection interface and alternating current accessory power outlet are separately positioned on the two ends of power supply disks.Because power line one end is connected with relaying protection interface and alternating current accessory power outlet respectively by earth leakage protective device, when there is ground connection or phase fault, earth leakage protective device action tripping air switch, thus deenergization, prevent from burning out test apparatus; Telescopic lever and movable pulley can move easily, and power cord wrap storage is saved space and do not tied a knot, without the need to extra circumscripted power line.

Description

Multi-function power panel

technical field

The utility model belongs to the technical field of power supply boards, and in particular relates to a multifunctional power supply board with long-distance addition of test quantity/AC power output and leakage point protection function in substation relay protection tests.

Background technique

The structure of the relay protection test line in the prior art is composed of a 2-3m four-core cable and a test plug at both ends. Although this method is widely used, it has many disadvantages, because the test line is often wound together for collection after use. It takes a lot of time to straighten out the knotted part of the cable when it is used again, and it is inconvenient to carry; moreover, the current and voltage of the intelligent station protection device are digital quantities, which are respectively taken from the protected interval and the PT interval. Merging unit, when the protected interval is far away from the merging unit of the PT interval, the existing experimental line will not meet the requirements, and it needs to be realized by connecting multiple experimental lines end-to-end, and the way of connecting multiple experimental lines end-to-end gives It brings a lot of inconvenience to the staff, and it takes a lot of time and physical strength to do the preparatory work, which affects the work efficiency; and if the existing test line has an insulation failure, it will often burn out the relay protection test device and cause serious leakage problems. Will cause property damage, security is also very poor. the

Invention content

The purpose of the utility model is to solve the technical problems of inconvenient storage, no leakage protection, low work efficiency and poor safety in the prior art, and provide a multifunctional power supply panel to overcome the deficiencies of the prior art. the

In order to achieve the above purpose, the utility model is a multifunctional power supply panel, which includes a power cord wound on the power supply panel; The side and the bottom are respectively equipped with telescopic pull rods and moving wheels; one end of the power cord is fixedly arranged on the terminal block inside the power supply panel, and a leakage protector is connected in series through a wire; the other end of the power cord is provided with a relay Electrical protection connector; the leakage protector is respectively connected to the relay protection interface and the AC output socket through wires; the relay protection interface and the AC output socket are respectively arranged at both ends of the power supply panel. the

The utility model is simple in structure and easy to use. Since the power cord is wound and placed on the power supply plate, and one end is respectively connected to the relay protection interface and the AC output socket through the leakage protector, the leakage protector will act when a grounding or phase-to-phase short circuit fault occurs. Jump off the air switch to disconnect the power supply and prevent the test instrument from being burned out, with high safety; the telescopic pull rod and the moving wheel can be moved conveniently, and the power cord is wrapped and stored to save space and not knotted; the length of the power cord is increased without additional external connections power cable. The utility model solves the technical problems of inconvenient storage, no leakage protection, low work efficiency and poor safety in the prior art. the

Description of drawings

Figure 1 is a schematic left view of the structure of the utility model;

Fig. 2 is a schematic right view of the structure of the utility model.

In the figure 1. Telescopic pull rod 2. Bracket 3. Moving wheel 4. Relay protection interface 5. Power panel 6. Leakage protector 7. AC output socket

Detailed ways

Referring to Fig. 1 and Fig. 2, the utility model includes a power cord wound on the power supply disk 5; the two ends of the power supply disk 5 are movably connected with the support 2 through bearing seats; one side and the bottom of the support 2 are respectively provided with There are telescopic pull rods 1 and moving wheels 3; one end of the power cord is fixed on the terminal block inside the power supply panel 5, and a leakage protector is connected in series through wires; the other end of the power cord is provided with relay protection connector; the leakage protector is respectively connected to the relay protection interface 4 and the AC output socket 7 through wires;

The power cord in the utility model uses four-core 4mm 2 high-quality multi-strand soft copper core wire, with a maximum withstand voltage of 1000V and a length of up to 50 meters, which can fully meet the requirements of the experimental voltage and interval distance for working in a substation; relay protection The terminal block of the test instrument and the protective device all use special sockets to ensure reliable transmission of the voltage of the standardized terminal block; the relay protection connector at the other end of the power line is connected to the object device under test, which prolongs the test amount. The transmission length realizes the remote output of the test analog quantity; at the same time, the relay protection connector and relay protection interface are marked with different phase colors to facilitate distinction (yellow-A phase, green-B phase, red-C phase, black -N phase), and corresponds to the phase color of the power line; this device also has a leakage protection function, when a grounding or phase-to-phase short circuit fault occurs, after reaching the set current of the leakage protector on the device, the leakage protector will trip the switch to isolate The leaking part was eliminated, and the problem of short-circuit and burning out of the test instrument occurred in a single long test line when the amount was added was solved. the

The beneficial effect of the utility model is that long-distance test simulation can be added, and the leakage protection function can avoid the phenomenon that the test instrument is burned out or the phenomenon of personal electric shock occurs, and the traditional power supply board is integrated so that it has the function of providing AC power; in addition, The utility model has a simple structure and is easy to carry and transport; one end of the power panel is provided with two AC output sockets, which can be used by test instruments. the

Claims (1)

1. a multifunction electric source tray, it comprises the power line be wrapped on power supply disks (5); It is characterized in that: the two ends of described power supply disks (5) are flexibly connected with support (2) by bearing pedestal; The side of described support (2) and bottom are respectively equipped with telescopic lever (1) and movable pulley (3); One end of described power line is fixedly installed on the inner connecting terminal block of power supply disks (5), and to be contacted an earth leakage protective device by wire; The other end of described power line is provided with relaying protection joint; Described earth leakage protective device is connected with relaying protection interface (4) and alternating current accessory power outlet (7) respectively by wire; Described relaying protection interface (4) and alternating current accessory power outlet (7) are separately positioned on the two ends of power supply disks (5).