CN206132941U - Experimental collection system of high voltage circuit breaker composite characteristic - Google Patents

Abstract

Kind of experimental collection system of high voltage circuit breaker composite characteristic aims at providing a work efficiency height, work load is little, the risk is low experimental collection system of high voltage circuit breaker composite characteristic. It includes back and hinders binding post, circuit breaker binding post, the binding post of measurement in the same term, quadriversal band switch, back panel wiring ac contactor, earthing rod, pilot lamp and power source, the utility model discloses the good reliability, convenient to use has effectively reduced the safe risk of testing, has improved test efficiency, reduces high -voltage testing's human cost, effectively prevents to measure the interference that earthing knife -switch imperfect earth brought when the circuit breaker divide -shut brake is in the same term to be tested.

Description

A kind of primary cut-out overall characteristic tests harvester

Technical field

This utility model is related to high-tension testing apparatus technical field, tries more particularly, to a kind of primary cut-out overall characteristic Test harvester.

Background technology

It is also one of most important power equipment that primary cut-out is most common as transformer station.SF6 chopper conventional electricals Prerun project mainly includes point, the operation voltage of making electromagnet, and galvanic circle resistance, the time-parameters of chopper measure three Pilot project.Wherein, galvanic circle resistance, the time-parameters measurement process of chopper are needed using insulating bar or work high above the ground Car.Due to the restriction of testing equipment, loop resistance can only adopt wiring, measurement, line taking, commutation by phase measurement method, Hui Zushi Line taking after testing end carries out contemporary trials again, and contemporary trials need to connect same period measurement line, this whole mistake respectively in chopper three-phase Journey needs Reusability insulating bar or high-altitude operation vehicle, and repeats wiring, had both increased the workload of testing crew, and increased absolutely The usage frequency of edge bar or high-altitude operation vehicle, wastes the plenty of time, less efficient, also increases the risk of process of the test.

The content of the invention

The purpose of this utility model is precisely in order to overcome above-mentioned shortcoming of the prior art, there is provided one kind effectively reduces examination The security risk tested, the primary cut-out overall characteristic test of human cost that improve test efficiency, reduce high-potting are adopted Acquisition means.

This utility model is achieved through the following technical solutions：

A kind of primary cut-out overall characteristic tests harvester, including returning resistance binding post, breaker connecting terminal, same Phase measurement binding post, four-way band switch, back panel wiring A.C. contactor, earthing rod, display lamp and power interface；It is described Resistance binding post (two voltage terminals are same model banana plug, and two current terminals are the U-shaped inserted sheet of same model) is returned including two Individual voltage wiring terminal, respectively V+, V-, respectively two current wiring terminals, I+, I-；The breaker connecting terminal (six Individual voltage terminal is same model banana plug, and six current terminals are the U-shaped inserted sheet of same model) including six voltage wiring terminals, Respectively A phases V+, A phase V-, B phase V+, B phase V-, C phase V+, C phase V-, six current wiring terminals, respectively A phases I+, A phase I-, B phase I+, B phase I-, C phase I+, C phases I-；The same period measurement binding post (three terminals are same model banana plug) includes three Individual voltage wiring terminal, respectively VA+, VB+, VC+；The four-way band switch includes A phase, B phase, C phase and same period etc. four Individual option；The back panel wiring A.C. contactor (five same models) includes that five 220V being connected with four-way band switch are handed over Stream catalyst；The earthing rod includes a ground terminal；The display lamp includes three display lamps, respectively yellowish green red；Institute Stating power interface includes 220V commercial power interfaces and fuse wire.All test cables are connected, and ensures that instrument can be abutted against Behind ground, band switch is pushed centre position, by primary cut-out overall characteristic test harvester same circuit resistance tester It is connected with circuit breaker characteristic analyser, and opens power switch device, makes instrument be in holding state.Chopper is in combined floodgate Under state, select A phases, the catalyst action being connected to change the open and-shut mode of each contact band switch, make A phases return resistance and survey The conducting of amount loop, other loops disconnect, and just can test A phases and return resistance.The measurement of B phases, C phases and the same period is consistent with A.

Preferably described back panel wiring A.C. contactor, energy automatic control loop opening and closing node state are safe and reliable, and Major loop can bear high current load.

Compared with prior art, this utility model has the advantage that：

This utility model is by accessing automatic high pressure open circuit by the pressure-wire of measurement primary cut-out loop resistance, electric current line On the breaker connection panel of device overall characteristic test harvester, by selection function key, secondary circuit controls each contact Opening and closing, different signals are gathered according to test requirements document.When breaker loop resistor test is carried out, catalyst makes difference respectively The voltage of phase, the contact switch of electric current line are normally closed, complete the loop resistance measurement of each phase；When time parameter measurement is carried out, connect Tentaculum makes the contact switch of voltage VA+, VB+, VC+ signal of each phase normally closed, and signal is accessed circuit breaker characteristic tester Signal acquisition terminal, makes the contact switch of voltage VA-, VB-, VC- signal of each phase normally closed, and their short circuits are grounded, and prevents from connecing The interference that ground disconnecting link imperfect earth is brought.

Test connection number of times, primary connection can be reduced using the primary cut-out overall characteristic test harvester When completing two tests, and wiring is not error-prone, and effectively can prevent from measuring circuit-breaker switching on-off contemporary trials, grounding switch connects The bad interference for bringing in ground.Closed test circuit automatically controls catalyst opening and closing by relay circuit, safe and reliable.Contact simultaneously Device has arc-control device, can in emergency circumstances cut off high current.

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is breaker connecting terminal structural representation；

Fig. 3 is back panel wiring A.C. contactor structural representation；

Fig. 4 is flow chart when this utility model is used.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is paid The every other embodiment for being obtained, belongs to the scope of this utility model protection.

Primary cut-out overall characteristic test harvester shown in Fig. 1～3, connects including resistance binding post 1, chopper is returned The line terminals 2, same period measurement binding post 3, four-way band switch 4, back panel wiring A.C. contactor 5, earthing rod 6, display lamp 7 with And power interface 8.

Described time resistance binding post 1, breaker connecting terminal 2, same period measurement binding post 3, the connection in series-parallel of earthing rod 6 connect Line mode as shown in Fig. 2 and an A.C. contactor 5 is concatenated in each phase of breaker connecting terminal 2, the measurement in the same period connects Concatenate an A.C. contactor 5 in line terminals 3 and earthing rod 6 respectively.A.C. contactor 5 is parallel with one another, with power interface 8, four Control loop is formed to the concatenation of band switch 4, the mode of connection is as shown in Figure 3.In four-way band switch 4, A phase, B phase, C phase is returned Concatenate in road into correspondence display lamp 7, respectively yellow, green, redness.All test cables are connected, and ensures instrument reliability After ground connection, band switch is pushed centre position, primary cut-out overall characteristic test harvester is tested with loop resistance Instrument is connected with circuit breaker characteristic analyser, and opens power switch device, makes instrument be in holding state.Chopper is in conjunction Under lock state, band switch is selected to A phases, the catalyst action being connected, change the open and-shut mode of each contact, return A phases Resistance measuring loop conducting, other loops disconnect, and just can test A phases and return resistance.B phases, C phases and same period metering system are consistent with A.

Wherein, the back panel wiring A.C. contactor 5 is preferably heavy duty, coil rating voltage 220V ac contactors Device, automatic control loop opening and closing node state are safe and reliable, and major loop can bear high current load.

Flow process during use as shown in figure 4, using when connect all test cables, and after ensureing instrument reliable ground, Band switch is pushed centre position, primary cut-out overall characteristic is tested into harvester with circuit resistance tester and open circuit Device specificity analysises instrument is connected, and opens power switch device, makes instrument be in holding state, it is ensured that chopper is in combined floodgate shape State.Determine that all preparations are complete, just can start measurement data.Content and the number of phases are measured as needed, adjust four-way ripple Duan Kaiguan starts correspondence measuring instrument, just can start measurement to relevant position.After showing measurement result, according to actual measurement item Mesh determines whether to continue measurement sundry item.If it is desired, sundry item can be measured with adjusting band switch to correspondence position. Determine a need for remeasuring according to measurement data.If it is desired, then remeasuring from beginning step.

Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model Protection domain within.

Claims (1)

1. a kind of primary cut-out overall characteristic tests harvester, it is characterised in that hinder binding post (1), open circuit including returning Device binding post (2), same period measurement binding post (3), four-way band switch (4), back panel wiring A.C. contactor (5), ground connection Post (6), display lamp (7) and power interface (8)；Described time resistance binding post (1) includes two voltage wiring terminals, respectively V+, V-, respectively two current wiring terminals, I+, I-；The breaker connecting terminal (2) including six voltage wiring terminals, Respectively A phases V+, A phase V-, B phase V+, B phase V-, C phase V+, C phase V-, six current wiring terminals, respectively A phases I+, A phase I-, B phase I+, B phase I-, C phase I+, C phases I-；Same period measurement binding post (3) is including three voltage wiring terminals, respectively VA +、VB+、VC+；The four-way band switch (4) includes four options such as A phase, B phase, C phase and same period；The back panel wiring is handed over Stream catalyst (5) includes five 220V A.C. contactors being connected with four-way band switch；The earthing rod (6) is including one Ground terminal；The display lamp (7) is including three display lamps, respectively yellowish green red；The power interface (8) is including 220V civil powers Interface and fuse wire.