CN201259531Y

CN201259531Y - Magnetic characteristic detection and test apparatus for circuit breaker

Info

Publication number: CN201259531Y
Application number: CNU2008200759229U
Authority: CN
Inventors: 吴永亮; 王铁镰; 徐卫生; 陈军; 高艳
Original assignee: Tianjin Baili Electronic Co Ltd
Current assignee: Tianjin Baili Electronic Co Ltd
Priority date: 2008-08-11
Filing date: 2008-08-11
Publication date: 2009-06-17
Anticipated expiration: 2018-08-11

Abstract

The utility model relates to a circuit breaker magnetic characteristic detection experiment device, which comprises a transformer, a current transformer nested on the output end of the transformer and an ammeter meter connected with the current transformer; the transformer is a multiple magnetic circuit transformer with 2-8 magnetic circuits on the primary end; one of the magnetic circuits is an adjustable magnetic circuit; a high-power voltage regulator and a low-power voltage regulator are connected with the adjustable magnetic circuit in parallel; the detection experiment device also comprises a button used for controlling the on-off state of the high-power and low-power voltage regulators, a change-over switch used for selecting magnetic circuits for operation, and a contactor used for controlling the on-off operation of the magnetic circuits in the detection circuit. As the utility model adopts double channels to respectively process adjustment control on the multiple magnetic circuit transformer through two voltage regulators, adopts two universal change-over switches to process multiple-tap position control adjustment on the low power and high power; the operation procedure is simple, convenient and rapid, in particular to circuit breakers for batch detection, the detected circuit breakers are replaced to avoid the repeated low-power and high-power adjustments, so the labor intensity is greatly reduced, the detection accuracy is guaranteed, and the production efficiency is improved.

Description

The isolating switch magnetic characteristic detects test unit

Technical field

The utility model belongs to a kind of circuit breaker characteristic detection and test device, particularly relates to a kind of isolating switch magnetic characteristic and detects test unit.

Background technology

Use breaker of plastic casing in the present known production and need carry out the detection of magnetic characteristic, in the actual detected process, regulate operate as normal low power lowest high-current value owing to will detect, also to detect simultaneously and regulate high power action current value, and the former experiments checkout equipment is dull economize on electricity path control system, like this when same model breaker of plastic casing being detected adjusting, at each isolating switch, all want earlier to calibrate by voltage adjusting device at the low power current value device current value that experimentizes, carrying out low power regulates, and then calibrate by voltage adjusting device at the high power current value device current value that experimentizes, like this when the equipment of same specification is regulated, because every equipment all will carry out low power, the pressure regulator of high power current value is regulated, like this in detecting adjustment process, prolonged greatly to detect and used the time, and also more complicated of practical operation greatly reduces detection efficiency and can not guarantee accuracy of detection well.Thereby the batch that has had influence on product puts into production fast.

Summary of the invention

The utility model provides a kind of same specification product can carry out the isolating switch magnetic characteristic detection test unit that magnetic characteristic detects to many isolating switchs after once to high and low times of current value adjustment for solving the technical matters that exists in the known technology.

The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: it includes transformer and at transformer output terminal current transformer that is with and the reometer that links to each other with the current transformer two ends, described transformer is the multiple magnetic circuit transformer that former end has 2-8 magnetic circuit; An adjustable magnetic circuit is arranged in a multiple magnetic circuit transformer 2-8 magnetic circuit, on described adjustable magnetic circuit, be parallel with high power pressure regulator and low power pressure regulator; Also include the button of the high low power pressure regulator break-make of control, select the contactor of magnetic circuit break-make work in the switch of which magnetic circuit work and the control detection circuit.

The utility model can also adopt following technical scheme:

Described transformer is the multiple magnetic circuit transformer that former end has 4 magnetic circuits; In 4 magnetic circuits of multiple magnetic circuit transformer, an adjustable magnetic circuit is arranged, on described adjustable magnetic circuit, be parallel with high power pressure regulator and low power pressure regulator; Also include 2 buttons of the high low power pressure regulator break-make of control, select 8 contactors of magnetic circuit break-make work in 2 universal seclectors of which magnetic circuit work and the control detection circuit.

Advantage and the good effect that the utlity model has are: owing to adopt binary channels that multiple magnetic circuit transformer is carried out stable regulation control respectively by two pressure regulators, adopt two universal seclectors, come respectively to low power by 2 pressure regulators, high power is carried out many gears regulating and controlling, operation steps is simple, convenient, fast, and for the isolating switch of batch detection, high power, after low power is regulated, two transformers just are in a metastable output adjusting position, when changing detected isolating switch, just needn't repeat low power more like this, high power is regulated, alleviate amount of operation labor greatly and guaranteed accuracy of detection, save separate unit and detected the running time of regulating, thereby improved labour productivity greatly.

Description of drawings

Fig. 1 is one of power circuit principle figure of the present utility model;

Fig. 2 is two of power circuit principle figure of the present utility model.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

As shown in Figure 1, in main circuit, civil power AC220V is connected to isolating switch TM40 end of incoming cables, and isolating switch TM40 outlet meets contactor KM0, and back contactor KM0 is connected to respectively on the main contacts of contactor KM11, KM21, KM22, KM31, KM41; Wherein meet the primary magnetic circuit B1 of multiple magnetic circuit transformer T1 behind the KM11, KM10 is attempted by magnetic circuit B1 two ends once; Equally, contactor KM31 and KM30 connect the two ends once of magnetic circuit B3, and contactor KM41 and KM40 connect the two ends once of magnetic circuit B4.Connect the elementary of high power pressure regulator TV1 as middle contactor KM21 one main contacts of being electrically connected of adjustable magnetic circuit B2, after connect another main contacts of contactor KM21, contactor KM22 connects the elementary of low power pressure regulator TV2, after connect another main contacts of contactor KM22, connect secondary contactor KM21 of high low power pressure regulator and KM22 two main contactss and connect after be connected to the once end of magnetic circuit B2, high low power pressure regulator TV1, TV2 are connected to a magnetic circuit B2 end once after being total to the N end.Be with a tap current transformer TA in multiple magnetic circuit transformer T1 time level, current transformer TA two taps connect a normally opened contact and the normally closed contact of rotary switch KMS respectively, after be connected to pointer reometer A0.

As shown in Figure 2, in control circuit, civil power AC220V connects respectively: beginning testing button SB0, connect debugging button SB10 normally closed contact after the branch, after meet time relay KT, another branch connects KT one normally closed contact, meets contactor KM0 again; Connect the SB10 normally opened contact, be connected to contactor KM0; Connect " high power electric current " button SB21 normally opened contact after " high low power disconnected " button SB20 normally closed contact one branch, after succeed electrical equipment KA22 normally closed contact, after succeed electrical equipment KA21 coil; Relay K A21 one normally opened contact and on button SB21 normally opened contact, equally, meet " low power electric current " button SB22 after another branch, after succeed electrical equipment KA21 normally closed contact, after succeed electrical equipment KA22 coil, relay K A22 one normally opened contact and on button SB22 normally opened contact; Relay K A21 normally opened contact meets contactor KM21; Relay K A22 normally opened contact meets contactor KM22; Universal seclector SW8 connects three groups of auxiliary normally opened contacts of contactor KM21, universal seclector SW12 is connected to respectively on contactor KM11, KM31, the KM41 coil after three groups of normally opened contacts of contactor KM21 and KM22 are in parallel in twos after connecing three groups of auxiliary normally opened contacts of contactor KM22; And contactor KM11 normally closed contact connects the KM10 coil; Contactor KM31 normally closed contact connects contactor KM30 coil; Contactor KM41 normally closed contact connects contactor KM40 coil; Contactor KM21, KM22, KM11, KM31, each one group of normally opened contact of KM41 meet a pilot lamp L21, L22, L1, L3, L4 respectively.

The concrete operations regulating step of this control circuit is as follows: when beginning the check adjusting, earlier by low power electric current selector button SB21, this moment, pilot lamp L21 was bright, the selected low power adjustment state of expression, pin then to eletric button SB10, having electric current in the testing circuit this moment passes through, pointer reometer A0 meeting display circuit current value, regulate low power control pressure regulator TV1 according to reometer A0 indicated value then and carry out Current Regulation, if required electric current is greater than pressure regulator maximal regulated value, can select different magnetic circuits by the different gears of regulating low power universal switch SW8, and then carry out output current and regulate, after reometer A0 is indicated to desired value, release button SB10, disconnecting low power by high low power cut-off push button SB20 then selects, the SB22 that touches the button again selectes the high power transition status, this moment, pilot lamp L22 was bright, select the suitable gear of high power universal switch SW12 according to detecting input current value then, pin again to eletric button SB10 adjusting high power control pressure regulator TV2 and carry out Current Regulation, indication according to reometer A0 is adjusted to desired value, release button SB10 then, the SB20 that touches the button disconnects high power to be regulated, the adjusting stage finishes, if wherein want given current value ratio less, can select mutual inductor TA low power value to detect adjusting by adjusting knob KMS, reometer A0 shows that the testing circuit current value of coming can be more accurate like this.Be exactly given testing process then, only need in the testing process to select high power, low power button SB22, SB21, the SB0 that touches the button then carries out the given current detecting of high low power respectively, the detected switch of same model, need not re-adjustments, only need to regulate once high low power output current value, can be general.

Claims

1. an isolating switch magnetic characteristic detects test unit, it includes transformer and at transformer output terminal current transformer that is with and the reometer that links to each other with the current transformer two ends, it is characterized in that: described transformer is the multiple magnetic circuit transformer that former end has 2-8 magnetic circuit; An adjustable magnetic circuit is arranged in a multiple magnetic circuit transformer 2-8 magnetic circuit, on described adjustable magnetic circuit, be parallel with high power pressure regulator and low power pressure regulator; Also include the button of the high low power pressure regulator break-make of control, select the contactor of magnetic circuit break-make work in the switch of which magnetic circuit work and the control detection circuit.

2. isolating switch magnetic characteristic according to claim 1 detects test unit, and it is characterized in that: described transformer is the multiple magnetic circuit transformer that former end has 4 magnetic circuits; In 4 magnetic circuits of multiple magnetic circuit transformer, an adjustable magnetic circuit is arranged, on described adjustable magnetic circuit, be parallel with high power pressure regulator and low power pressure regulator; Also include 2 buttons of the high low power pressure regulator break-make of control, select 8 contactors of magnetic circuit break-make work in 2 universal seclectors of which magnetic circuit work and the control detection circuit.