CN203673039U

CN203673039U - Portable relay protection verifying unit

Info

Publication number: CN203673039U
Application number: CN201320815627.3U
Authority: CN
Inventors: 袁军芳; 吴勇; 杨国祥; 李来宏
Original assignee: Magang Group Holding Co Ltd; Maanshan Iron and Steel Co Ltd
Current assignee: Magang Group Holding Co Ltd; Maanshan Iron and Steel Co Ltd
Priority date: 2013-12-12
Filing date: 2013-12-12
Publication date: 2014-06-25
Anticipated expiration: 2023-12-12

Abstract

The utility model provides a portable relay protection verifying unit belonging to relay protection equipment and especially relates to an auxiliary device used for relay protection verification. The portable relay protection verifying unit is characterized in that a static contact end 31 and a static contact end 33 of a power switch are connected with a wiring terminal 1.2 and a wiring terminal 1.3 respectively; a movable contact end 32 is connected with a negative electrode wiring terminal 1.4 of a power source and a static contact end 45 and a static contact end 46 of a double-throw switch; a movable contact end 34 is connected with a wiring terminal 1.10 and a fuse device; a converting switch includes a contact arm SW1,a contact arm SW2, a common point COM1, a common point COM2 and ten contacts; five taps of a primary coil of a voltage regulator are connected with a first contact to a fifth contact of the converting switch successively; a secondary coil is connected with a six contact to a tenth contact of the converting switch; a movable contact end 43, a static contact end 41 and a static contact end 42 of the double-throw switch are connected with a wiring terminal 1.6, a wiring terminal 1.7 and a wiring terminal 1.5 respectively; and a movable contact terminal 44 is connected with a wiring terminal 1.8. The portable relay protection verifying unit has advantages that wiring faults are reduced; operation is convenient and quick; field working efficiency is improved; and time for restoring operation of a to-be-protected device can be reduced effectively.

Description

Portable relay protection check device

Technical field

The utility model belongs to relay protection device, relates in particular to relay protection check servicing unit.

Background technology

At present, in electric substation's switch board, there is a fairly large number of all kinds of relay, need to regularly carry out verification, whether meet production requirement with the characteristic of determining relay.The relay protection of current middle pressure and following transformer and distribution station is in the time of verification relay, need patch to test, if relay quantity is many, needing to expend a large amount of time is used in wiring, field wiring complexity, and not only easily there is wiring faults in field personnel, and longevity of service, inefficiency, the time of resuming operation of protected equipment increases, and impacts to normal production; In addition because test process is complicated and there is no the equipment of test automatically, cause some relays to can not get for a long time verification, just can be found until break down.

Utility model content

The defect existing in order to overcome prior art; the purpose of this utility model is to provide a kind of portable relay protection check device; in solution, press and following relay checking wiring challenge, complete at short notice field wiring work, realize verification relay rapidly.

Portable relay protection check device, comprise casing, on cabinet panel, establish power switch, safety apparatus, connection terminal, double throw switch, switch, pressure regulator is set in casing, the stationary contact end 31, the stationary contact end 33 that are characterized in described power switch connect respectively connection terminal 1.2, connection terminal 1.3, movable contact end 32 connects the negative terminals son 1.4 of power supply and the

stationary contact end

45,46 of double throw switch, movable contact end 34 connects connection terminal 1.10 and safety apparatus, connects positive terminal 1.1 of power supply by serial connection protective device; Described switch comprises two contact arm SW1, SW2, two common point COM1, COM2, and ten contacts, wherein a common point COM1 connects connection terminal 1.11, and another common point COM2 connects connection terminal 1.9; Described pressure regulator primary winding one end is provided with five taps, connects successively the first to the 5th contact of switch, and inferior coil one end connects the 6th to the tenth contact of switch, and the other end of two coils connects the movable contact end 44 of double throw switch; The movable contact end 43 of described double throw switch, stationary contact end 41, stationary contact end 42 connect respectively connection terminal 1.6,1.7,1.5, and movable contact end 44 connects connection terminal 1.8.

The utility model further improves, primary winding one end of described pressure regulator is provided with five taps, connect successively the first to the 5th contact of switch, be respectively 10A, 20A, 40A, 50A and 100A, switch is changing of transformation output current between contact, reaches the sampling of 0-100A electric current is shown.

When work, connection terminal 1.1,1.4 incoming transport power supplys, connection terminal 1.10,1.11 access variable resistor R, connection terminal 1.8,1.9 access reometers, the power end of connection terminal 1.2,1.3 access electrical secondmeteres, the trigger end of connection terminal 1.6,1.7 access electrical secondmeteres, connection terminal 1.5 accesses measured relay, then turns on the power switch, in the time that double throw switch is placed in I position, trigger electrical secondmeter timing simultaneously, complete the motion time measurement to relay tip; In the time that double throw switch is placed in II position, can complete size adjustment and control to output current, keep variable-resistance resistance, can be in the time that double throw switch transforms to I position, complete by the rush of current verification of verification relay, trigger electrical secondmeter timing simultaneously, complete the motion time measurement to relay tip.

Compared with prior art, advantage is that this device has solved the following relay checking wiring of middle pressure challenge, and field wiring is simple; reduce wiring faults, convenient and swift, improve work on the spot efficiency; effectively reduce the working time of recovering protected equipment, save production cost.

Brief description of the drawings

Fig. 1 is portable relay protection check device appearance structural representation;

Fig. 2 is the circuit connection diagram of the utility model embodiment.

In figure: 1-casing, 1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,1.10,1.11-connection terminal, 2-safety apparatus, 3-power switch, 4-double throw switch, 5-switch, 6-pressure regulator.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model will be further described.

Can be found out by Fig. 1,2, portable relay protection check device, comprise casing 1, on cabinet panel, establish power switch 3, safety apparatus 2, connection terminal, double throw switch 4, switch 5, pressure regulator 6 is set in casing, the stationary contact end 31 of described power switch, stationary contact end 33 connect respectively connection terminal 1.2, connection terminal 1.3, movable contact end 32 connects the negative terminals son 1.4 of power supply and the

stationary contact end

45,46 of double throw switch, movable contact end 34 connects respectively connection terminal 1.10 and safety apparatus, connects positive terminal 1.1 of power supply by serial connection protective device; Described switch comprises two contact arm SW1, SW2, two common point COM1, COM2, and ten contacts, wherein a common point COM1 connects connection terminal 1.11, and another common point COM2 connects connection terminal 1.9; Described pressure regulator primary winding one end is provided with five taps, connects successively the first to the 5th contact of switch, and inferior coil one end connects the 6th to the tenth contact of switch, and the other end of two coils connects the movable contact end 44 of double throw switch; The movable contact end 43 of described double throw switch, stationary contact end 41, stationary contact end 42 connect respectively connection terminal 1.6,1.7,1.5, and movable contact end 44 connects connection terminal 1.8.

Primary winding one end of described pressure regulator 6 is provided with five taps, connect successively the first to the 5th contact of switch 5, be respectively 10A, 20A, 40A, 50A and 100A, switch is changing of transformation output current between contact, reaches the sampling of 0-100A electric current is shown.

When work, connection terminal 1.1,1.4 incoming transport power supplys, connection terminal 1.10,1.11 access variable resistors, connection terminal 1.8,1.9 access reometers, the power end of connection terminal 1.2,1.3 access electrical secondmeteres, the trigger end of connection terminal 1.6,1.7 access electrical secondmeteres, connection terminal 1.5 accesses measured relay, then turns on the power switch, in the time that double throw switch is placed in I position, trigger electrical secondmeter timing simultaneously, complete the motion time measurement to relay tip; In the time that double throw switch is placed in II position, can complete size adjustment and control to output current, keep variable-resistance resistance, can be in the time that double throw switch transforms to I position, complete by the rush of current verification of verification relay, trigger electrical secondmeter timing simultaneously, complete the motion time measurement to relay tip.

Claims

1. portable relay protection check device, comprise casing (1), on cabinet panel, establish power switch (3), safety apparatus (2), connection terminal, double throw switch (4), switch (5), pressure regulator (6) is set in casing, it is characterized in that: the stationary contact end 31 of described power switch, stationary contact end 33 connects respectively connection terminal 1.2, connection terminal 1.3, movable contact end 32 connects the negative terminals son 1.4 of power supply and the stationary contact end 45 of double throw switch, 46, movable contact end 34 connects respectively connection terminal 1.10 and safety apparatus, connect positive terminal 1.1 of power supply by serial connection protective device, described switch comprises two contact arm SW1, SW2, two common point COM1, COM2, and ten contacts, wherein a common point COM1 connects connection terminal 1.11, and another common point COM2 connects connection terminal 1.9, described pressure regulator primary winding one end is provided with five taps, connects successively the first to the 5th contact of switch, and inferior coil one end connects the 6th to the tenth contact of switch, and the other end of two coils connects the movable contact end 44 of double throw switch, the movable contact end 43 of described double throw switch, stationary contact end 41, stationary contact end 42 connect respectively connection terminal 1.6,1.7,1.5, and movable contact end 44 connects connection terminal 1.8.

2. relay protection check device according to claim 1; it is characterized in that: primary winding one end of described pressure regulator (6) is provided with five taps; the first to the 5th contact that connects successively switch (5), is respectively 10A, 20A, 40A, 50A and 100A.