CN104459500A - Control circuit of transformer winding and testing device and testing system of transformer - Google Patents
Control circuit of transformer winding and testing device and testing system of transformer Download PDFInfo
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Abstract
The invention discloses a control circuit of a transformer winding, a testing device and a testing system of a transformer. Wherein, this transformer winding's control circuit includes: the relay is provided with an input end and an output end, the output end is used for being connected with a winding of the transformer to be tested, and the relay comprises a contact, a first contact and a second contact, wherein when the contact is positioned on the first contact, the relay is in an attraction state, and when the contact is positioned on the second contact, the relay is in a disconnection state; and the controller is connected with the input end and used for sending a control command, and the control command is used for controlling the relay to be closed or opened. By the aid of the method and the device, the problem of low efficiency of manual testing of the electrical safety of the transformer in the related art is solved.
Description
Technical field
The present invention relates to transformer testing field, in particular to proving installation and the test macro of a kind of control circuit of Transformer Winding and transformer.
Background technology
High-frequency transformer is power converter conventional in switching power circuit, and play the effect of strong and weak electricity isolation and ability transmission in circuit, it has the advantages such as power consumption is little, efficiency is high, voltage stabilized range is wide, volume is little, lightweight.And exactly due to the advantage that volume is little, efficiency is high, cause the electrical safety performance promoting high-frequency transformer to be limited.In addition, due to high-frequency transformer turn-to-turn or the withstand voltage deficiency of interlayer, cause power loss serious.
At present, in the related, in order to test the electrical security of high-frequency transformer, often need by voltage resistant instrument, to the mode adopting manual test one by one between winding and winding, between winding and magnetic core, or adopt only to the mode of wherein a pair winding test, this technical scheme testing efficiency is low, not comprehensive, the demand of large-scale manufacturing enterprise can not be met.
For the inefficient problem of the electrical security of manual testing's transformer in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of control circuit of Transformer Winding and the proving installation of transformer and test macro, to solve inefficient problem when whether qualified manual testing's transformer is in correlation technique.
To achieve these goals, according to an aspect of the present invention, a kind of control circuit of Transformer Winding is provided.This control circuit comprises: relay, there is input end and output terminal, described output terminal is used for being connected with the winding of transformer to be measured, described relay comprises contact, the first contact and the second contact, wherein, when described contact is on described first contact, described relay is attracting state, when described contact is on described second contact, described relay is off state; And controller, be connected with described input end, for sending control command, described control command is for controlling described relay adhesive or disconnection.
Further, described control command comprises serial data control command, described relay comprises multiple, described control circuit also comprises: shift register, described shift register is connected between described controller and multiple described relay, for described serial data control command is converted to parallel data control command, described parallel data control command is for controlling multiple described relay adhesive or disconnection.
Further, described control circuit also comprises: relay drive circuit, is connected with described relay, for driving described relay adhesive or disconnection; And optocoupler change-over circuit, be connected between described controller and described relay drive circuit, for being high level by low transition corresponding for described control command, obtain high level control command, described high level control command performs drive actions for controlling described relay drive circuit.
Further, described relay is low-vacuum load-tripping device or high-voltage relay.
To achieve these goals, according to a further aspect in the invention, a kind of proving installation of transformer is provided.This device comprises: storer, and for storing test program, described test procedure is used for performing test processes to transformer to be tested; Program chooser, for selecting target program from described test procedure; And the control circuit of arbitrary described Transformer Winding, be connected with described storer, and be connected with described program chooser, for the target program selected by described program chooser to described transformer performance objective test processes to be tested.
Further, the proving installation of described transformer also comprises: for pressure part, have first end and the second end, described first end is used for being connected with the winding of described transformer to be tested, and the described pressure part that supplies is used for providing test voltage for the described winding of described transformer to be tested; And telecommunication circuit, be connected to controller in the control circuit of described Transformer Winding and described between pressure part, for transmitting described controller and described for the communication data between pressure part.
Further, described telecommunication circuit comprises: switch, is that data send state or data receiving state for controlling the state of described controller.
Further, the described pressure part that supplies comprises voltage resistant instrument.
Further, the proving installation of described transformer also comprises: display, be connected with described controller, for show in following information any one or multiple: the magnitude of voltage of the target program selected by current test, described test voltage and voltage kind, test result.
To achieve these goals, according to a further aspect in the invention, a kind of test macro of transformer is provided.This system comprises: one or more transformer to be measured; The proving installation of transformer, is connected with one or more transformer to be measured described, for performing test processes to one or more transformer to be measured described; And power supply, be connected with the proving installation of described transformer, for providing testing power supply for the proving installation of described transformer.
Pass through the present invention, adopt relay, there is input end and output terminal, output terminal is connected with the winding of transformer to be measured, and relay comprises contact, the first contact and the second contact, wherein, when contact is on the first contact, relay is attracting state, and when contact is on the second contact, relay is off state; And controller, be connected with input end, for sending control command, control command is used for pilot relay adhesive or disconnection, solve inefficient problem when whether qualified manual testing's transformer is in correlation technique, and then reach the whether qualified and effect that efficiency is high of automatically test transformer.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the control circuit of Transformer Winding according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of controller according to the embodiment of the present invention and peripheral circuit thereof;
Fig. 3 is the schematic diagram of the control circuit of optional Transformer Winding according to the embodiment of the present invention;
Fig. 4 is the schematic diagram of the proving installation of transformer according to the embodiment of the present invention;
Fig. 5 is the schematic diagram of storer according to the embodiment of the present invention and peripheral circuit thereof;
Fig. 6 is the schematic diagram of keyboard according to the embodiment of the present invention and peripheral circuit thereof;
Fig. 7 is the schematic diagram of the telecommunication circuit according to the embodiment of the present invention;
Fig. 8 is the schematic diagram of the display interface of display according to the embodiment of the present invention; And
Fig. 9 is the schematic diagram of the test macro of transformer according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Better the present invention program is understood in order to make those skilled in the art, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment obtained under those of ordinary skill in the art do not make creative work prerequisite, all should belong to protection scope of the present invention.
It should be noted that, term " first ", " second " etc. in instructions of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.
It should be noted that, in the present invention, can test high-frequency transformer, but, improper restriction is not caused to transformer.
According to embodiments of the invention, provide a kind of control circuit of Transformer Winding, the control circuit of this Transformer Winding is used for automatically controlling each winding of transformer to be measured and connects or disconnects proving installation or test macro.
Fig. 1 is the schematic diagram of the control circuit of Transformer Winding according to the embodiment of the present invention.As shown in Figure 1, this control circuit comprises: relay 102 and controller 104.
Relay 102 has input end and output terminal, and in use, its output terminal is connected with the winding of transformer to be measured, and its input end is connected with controller 104.Relay 102 can be double-contact relay.This double-contact relay can comprise a contact and two contacts, and two contacts are respectively the first contact and the second contact.Wherein, when contact is on the first contact, relay is attracting state; When contact is on the second contact, relay is off state.When relay is attracting state, the winding access proving installation of transformer to be measured or test macro; When relay is off state, the winding of transformer to be measured disconnects proving installation or test macro.Relay 102 can comprise one or more.
Controller 104 is connected with the input end of relay 102, and this controller 104 is for sending control command to relay 102, and this control command is used for pilot relay adhesive or disconnection.Such as, control command can comprise the first control command and the second control command, and wherein, the first control command may be used for pilot relay adhesive, and the second control command may be used for pilot relay and disconnects.Above-mentioned control command can comprise serial data control command.
Controller 104 can be central processor CPU module, be made up of master chip and peripheral circuit, for pilot relay 102 switch come indirect control transformer winding with for pressure part (as, voltage resistant instrument) connection status, and then control controller 104 and for the data communication between pressure part.Such as, CPU and peripheral circuit thereof can as shown in Figure 2, and CPU adopts 89C52 family chip, and reset circuit is used for the effect of mainboard electrification reset, and crystal oscillating circuit is for providing the sequential of master chip work.The I/O port (data input/output port) of master chip can be defined as follows: P0 port is used for driving display work, while being connected with each port of display, need the pull-up resistor adding a 10K Ω; P1 port is used as keyboard signal scanning port; P2 port is used as the Read-write Catrol port of RS485 Signal transmissions and display module; P3 port is used as the control port of relay and the acousto-optic hint port of light emitting diode and hummer.
Pass through the present invention, adopt relay, there is input end and output terminal, output terminal is connected with the winding of transformer to be measured, and relay comprises contact, the first contact and the second contact, wherein, when contact is on the first contact, relay is attracting state, and when contact is on the second contact, relay is off state; And controller, be connected with input end, for sending control command, control command is used for pilot relay adhesive or disconnection, because each winding that automatically can control transformer to be measured connects or disconnects the annexation with proving installation or test macro, thus avoid artificial selection and each winding connected or disconnected the time consumed with proving installation or test macro, and then reach the whether qualified and effect that efficiency is high of automatically test transformer.
Preferably, in embodiments of the present invention, above-mentioned serial data control command can be converted to parallel data control command, now, the control circuit of this Transformer Winding can disposable control one or more relay adhesive or disconnection.Particularly, as shown in Figure 1, this control circuit can also comprise: shift register 106.
Shift register 106 is connected between controller 104 and multiple relay 102 (in figure with one for exemplifying).Shift register 106 is for receiving the serial data control command of self-controller 104, and the serial data control command received is converted to parallel data control command, this parallel data control command is for controlling one or more relay adhesive or disconnection.
Pass through the embodiment of the present invention, owing to serial data control command can be converted to parallel data control command, achieve the object of one or more relay adhesive of disposable control or disconnection, reach the disposable effect one or more transformer to be measured being performed to test, with carry out compared with test to transformer to be measured one by one, testing efficiency is higher.
Preferably, in embodiments of the present invention, as shown in Figure 1, this control circuit can also comprise: relay drive circuit 108 and optocoupler change-over circuit 110.Relay drive circuit 108 is connected with relay 102, for driving relay 102 adhesive or breaking.Optocoupler change-over circuit 110, be connected between controller 104 and relay drive circuit 108, for being high level by low transition corresponding for control command, obtain high level control command, high level control command is used for pilot relay driving circuit and performs drive actions.Level corresponding to the controller 104 that controller 104 directly exports is often low level, and low level is not enough to pilot relay driving circuit 108 works, therefore by optocoupler change-over circuit 110, low level control order can be converted to high level control command, thus can prevent relay drive circuit 108 from cannot perform drive actions.
In the above embodiment of the present invention, relay 102 can be low-vacuum load-tripping device or high-voltage relay, does not limit at this.
The partial circuit of above-mentioned control circuit (does not comprise controller 104, also be master chip) as shown in Figure 3, the shift register, optocoupler signaling conversion circuit, the relay drive circuit adopting ULN2003 chip and the relay that adopt 74HC164 chip can be figure 3 illustrates.Wherein:
Master chip (not shown) is for realizing the transmission of pilot relay adhesive or open command.74HC164 chip is for realizing the function of data serial input, parallel output, its SER1 zone bit pin (namely, 1st pin and the 2nd pin) be data-in port, K1-K7 zone bit pin is data out pin, CLK1 zone bit pin is time clock input pin, realize the displacement of data when CLK1 pin level becomes high level, GND is power ground, and VCC is power supply+5V;
The input end of optocoupler signaling conversion circuit is connected with the output terminal of 74HC164 chip, and the signal of the 74HC164 chip received is converted to output signal, and output signal is sent to the input end of the ULN2003 relay drive circuit of next stage.ULN2003 chip is big current Darlington transistor, and for driving relay work, its input end is the control signal after the conversion of optocoupler change-over circuit, and its output terminal is connected with relay.L and N zone bit is connected with high input voltage terminal with the high voltage output terminal for pressure part (e.g., voltage resistant instrument).After relay work, the 1st pin (that is, PIN1 zone bit) of HV Terminal and transformer to be measured is connected;
Its workflow of control circuit shown in Fig. 3 is as follows: the input port that the 1st pin of 74HC164 chip and the 2nd pin (that is, SER1 zone bit) are data, is all connected with the 21st pin (that is, SER1 zone bit) of master chip.When needs perform the actuating of relay, data can be sent to 74HC164 chip by SER1 zone bit pin by master chip, after 74HC164 chip receives data, by K1-K7 zone bit pin, the data received are exported together to the crus secunda of coupled optocoupler change-over circuit, wherein, the signal transmitted at this is low and high level.If the signal that optocoupler JP1 or JP2 receives is high level signal, then do not perform steering order, also, keep standing state; If the signal that optocoupler JP1 or JP2 receives is low level, then optocoupler enters duty, now the output terminal of optocoupler is opened, optocoupler the 3rd pin (namely, KK1, KK2 zone bit) can high level be produced, the ULN2003 transistor be connected with KK1, KK2 zone bit (namely, 1st pin, the 2nd pin) input end be high level, when the input end of ULN2003 is high level its correspondence output terminal (, B1, B2) be then low level, so relay coil is energized and enters duty, L or N be connected with voltage resistant instrument holds and be communicated with transformer.
According to embodiments of the invention, provide a kind of proving installation of transformer, the proving installation of this transformer is used for automatically selecting test procedure to perform test processes to each winding of transformer to be measured.
Fig. 4 is the schematic diagram of the proving installation of transformer according to the embodiment of the present invention.As shown in Figure 4, this proving installation comprises: the control circuit 10 of Transformer Winding, storer 20 and program chooser 30.
Storer 20 is for storing the test procedure pre-set, and this test procedure is used for performing test processes to transformer to be tested.Wherein, owing to performing a test processes, can test one or more transformer to be tested, and for same transformer to be tested, can also one by one or disposablely to test each winding, therefore, in order to meet above-mentioned testing requirement, test procedure can comprise one or more.
Wherein, as shown in Figure 5, storer 20 can be 24C64 storage chip.24C64 chip the 6th pin as serial synchronization clock signal (namely, SCL zone bit) pin, with controller master chip the 15th pin (namely, SCL zone bit) be connected (not shown), serial synchronization clock signal is produced for the demand according to master chip test procedure, and control bus access data; Its 5th pin as serial data pin (namely, SDA zone bit), be connected with controller master chip the 14th pin (that is, SCL zone bit), for inputing or outputing data, address etc. when chip is read and write, this pin is bi-directional pin and open-drain; In order to ensure the stability that data are transmitted, 24C64 chip the 5th, 6 pin are respectively connected to the pull-up resistor that a resistance is 10K Ω.
Program chooser 30 for selecting target program from test procedure, and this target program is the test procedure required for current test, and it can comprise one or more.In embodiments of the present invention program chooser 30 is not limited.
Such as, program chooser 30 can be keyboard, and user can by input through keyboard instruction to select corresponding test procedure as target program.
As shown in Figure 6, can adopt matrix form (as, 4 row 3 arrange) keyboard, now, the button of keyboard comprises: ten key and acknowledgement key, cancel key totally 12 buttons, as shown in the figure, this keyboard circuit structure is simple for the connected mode of it and controller CPU, uses the position processing instruction of single-chip microcomputer more for convenience.In keyboard lines, every a line is not identical with each row infall, and each infall is communicated with by a button.When to recognition by pressing keys, employing is lined by line scan query method, send low level to successively every a line, also be, P10, P11, P12, P13 port of single-chip microcomputer is set to low level successively, then all alignment states are inquired about, also namely, the level state of P14, P15, P16 port be connected with alignment is read, if be all high level, then pressed key is not at this journey, if be not entirely high level, then pressed key must at this journey, and be that key on the intersection point crossing with low level alignment, after judging corresponding button, and then perform corresponding instruction.
The control circuit 10 of Transformer Winding can be the control circuit of the arbitrary Transformer Winding in previous embodiment, does not repeat them here.The control circuit 10 of Transformer Winding is connected with storer 20, and is connected with program chooser 30, for the target program selected by program chooser 30 to transformer performance objective test processes to be tested.
As shown in Figure 4, in embodiments of the present invention, the test circuit of this transformer can also comprise: for pressure part 40 and telecommunication circuit 50.Have first end and the second end for pressure part 40, its first end is used for being connected with the winding of transformer to be tested, for pressure part 40 for providing test voltage for the winding of transformer to be tested.Telecommunication circuit 50 is connected to the controller 104 in the control circuit 10 of Transformer Winding and supplies between pressure part 40, for transmission control unit (TCU) 104 with for the communication data between pressure part 40.
As shown in Figure 7, telecommunication circuit 50 adopts RS485, wherein, 1st pin of RS485 chip (that is, JP15) is Signal reception pin, by the transformation of JPJ11 optocoupler by the RS485 signal that receives from the 4th pin of JPJ11 optocoupler (namely, RXD flag) be sent to the master chip of controller 104, wherein, the 4th pin of JPJ11 optocoupler and the 10th pin (that is, RXD flag) of master chip are connected.4th pin of RS485 chip (JP15) is that signal sends pin, be connected with the 4th pin of JPJ12 optocoupler, 11st pin of the 2nd pin of JPJ12 optocoupler and the master chip of controller 104 (namely, TXD flag) be connected, when carrying out data and sending, the data of master chip deliver to JPJ12 optocoupler by the 11st human hair combing waste, then pass through the transformation of JPJ12 optocoupler, and the signal after conversion is sent to RS485 chip (that is, JP15) by the 4th pin of optocoupler JPJ12.RS485 chip (namely, JP15) the 2nd pin and the 3rd pin play and play transformation to for the reception data of pressure part 40 and the transmission data of master chip, two pins are shorted together by this circuit, and by R39 resistance, its level is drawn high, make RS485 chip be in data and send state, and just the data information transfer of master chip, to RS485 chip, is converted into bus data (A+, B-) by the process of RS485 chip and sends to for pressure part 40.Transmission for pressure part 40 data is as follows: (namely the RS485 data-signal exported for pressure part 40 is sent to RS485 chip by circuit, JP15) the 6th pin (A+) and the 7th pin (B-), again by RS485 chip (namely, information is sent to the master chip of controller 104 by transformation JP15), now, master chip receives for pressure part 40 signal.Otherwise the data of master chip, by sending to for pressure part 40 by circuit after RS485 chip (that is, JP15) conversion, now, perform the steering order of master chip transmission for pressure part 40.In figure, R33, R30, R34, R32, R31, R40, R35, R36, R39 is resistance, it act as current limliting, Q1 is NPN type triode, play on-off action, for the switching of indirect control data accepting state with the state of transmission, R37 is pull down resistor, object is dragged down low level, this resistance is 10K Ω, its one end connects the 7th pin of RS485 chip, the other end connects power ground, R38 is pull-up resistor, its objective is and high level is raised, this resistance is 10K Ω, its one end connects the 6th pin of RS485 chip, the other end connects power supply+5V, RS485 signaling interface connects the RS485 communication interface for pressure part 40.D91, D92 are light emitting diode, use, can glimmer when Signal transmissions as signal lamp.
In embodiments of the present invention, telecommunication circuit can comprise: switch.This switch is that data send state or data receiving state for controlling the state of controller, and in like manner, it also may be used for controlling for the state of pressure part 40 is that data send state or data receiving state.As shown in Figure 7, NPN type triode is switch.By adopting construction of switch, controller and the communications status for pressure part 40 can be controlled in real time.
In embodiments of the present invention, voltage resistant instrument can be comprised for pressure part 40.Like this, the test voltage that can directly adopt voltage resistant instrument to provide, saves production cost.
As shown in Figure 4, in embodiments of the present invention, the test circuit of this transformer can also comprise: display 60.Display 60 is connected with controller 104, for show in following information any one or multiple: the target program selected by current test, the magnitude of voltage of test voltage and voltage kind, test result.Like this, make test process and test result more directly perceived, be convenient to monitoring and be convenient to analytical test result.
As shown in Figure 8, display 60 can be LCD12864 liquid crystal, and it may be used for the code of the above-mentioned information shown, and can recall the test procedure corresponding to this code by this code of input through keyboard; Voltage refers to the magnitude of voltage tested, and AC/DC refers to the kind of test voltage, and AC represents alternating voltage, and DC represents DC voltage; Leakage Current refers to the current value under corresponding test voltage, all can return this current value by voltage resistant instrument after each winding is completed, then show after system process after tested, result judgement be carried out to these data simultaneously, meet the requirements, display result is OK, undesirable, and display result is NG.Such as, when Leakage Current value is less than or equal to pre-set current value, the winding OK tested; When Leakage Current value is greater than pre-set current value, the winding NG tested.
According to embodiments of the invention, provide a kind of test macro of transformer, the test macro of this transformer is used for automatically selecting test procedure to perform test processes to each winding of one or more transformer to be measured.
Fig. 9 is the schematic diagram of the test macro of transformer according to the embodiment of the present invention.As shown in Figure 9, this test macro comprises: the proving installation 1 of transformer, one or more transformer 2 (for 1 in Fig. 9) and power supply 3 to be measured.
It should be noted that, the proving installation 1 of transformer can be the proving installation of the arbitrary transformer in previous embodiment, does not repeat them here.The proving installation 1 of this transformer is connected with one or more transformer to be measured, for performing test processes to one or more transformer to be measured in once testing.Power supply 3 is connected with the proving installation 1 of transformer, provides testing power supply for the proving installation 1 for transformer.
Such as, power supply 3 can be the power supply of direct current 12V, be the ceramic disc capacitor of 0.1 μ F and 1PCS capacity by 1PCS capacity be that 470 μ F decomposition voltages carry out filtering, wherein, one end of ceramic disc capacitor connects the positive pole of direct supply 12V, its other end connects the negative pole of direct supply 12V, the positive pole of electrochemical capacitor connects the positive pole of 12V direct supply, the other end of electrochemical capacitor connects the negative pole of direct supply, and the positive pole of 12V direct supply connects 7805 regulator blocks, + 5V voltage is exported after 7805 regulator block voltage stabilizings, wherein the ground wire of 7805 regulator blocks is connected with the negative pole of 12V direct supply, the output voltage (+5V) of 7805 regulator blocks equally also carries out filtering by the ceramic disc capacitor of 0.1 μ F and 470 μ F decomposition voltages, wherein one end of ceramic disc capacitor is just connecting+5V, the other end connects the negative of+5V, the positive pole of electrochemical capacitor is just connecting+5V voltage, the other end of electrochemical capacitor connects the negative of+5V, finally+5V output terminal connects a light emitting diode, this light emitting diode is used as power light.
By the embodiment of the present invention, automatically can select test procedure, and in once testing, test processes be performed to each winding of one or more transformer to be measured.Due to the automatic conversion that progressively can realize between different winding, between winding and magnetic core by Automatic control of single chip microcomputer, eliminate the instability of manual test, switching time between winding can complete in 0.5s, transformer does not need after installing to dismantle again, the disposable test completing all windings, increases work efficiency greatly.
As can be seen from the above description, present invention achieves following technique effect:
1, can the electrical security of Aulomatizeted Detect high-frequency transformer, there is the advantage that efficiency is high, reliability is high, stability is high.As long as high-frequency transformer is arranged in the testing base of proving installation or test macro by user, and select corresponding test procedure by keyboard, click TEST button and can carry out continuity test to coil, magnetic core, and automatic-prompting detects the test result judged;
2, the control principle of single-chip microcomputer can be utilized, progressively realize the automatic conversion between different winding, and then perform test processes;
3, can prestore many test procedures, user, when testing, can directly transfer corresponding test procedure as target program by keyboard, performs test processes to transformer to be tested;
4, adopt independent relay to control to the pin of each transformer to be measured, the test processes of the winding of any mode can be met;
5, sound and light alarm prompting effect is realized.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a control circuit for Transformer Winding, is characterized in that, comprising:
Relay, there is input end and output terminal, described output terminal is used for being connected with the winding of transformer to be measured, described relay comprises contact, the first contact and the second contact, wherein, when described contact is on described first contact, described relay is attracting state, when described contact is on described second contact, described relay is off state; And
Controller, is connected with described input end, and for sending control command, described control command is for controlling described relay adhesive or disconnection.
2. the control circuit of Transformer Winding according to claim 1, is characterized in that, described control command comprises serial data control command, and described relay comprises multiple, and described control circuit also comprises:
Shift register, described shift register is connected between described controller and multiple described relay, for described serial data control command is converted to parallel data control command, described parallel data control command is for controlling multiple described relay adhesive or disconnection.
3. the control circuit of Transformer Winding according to claim 1, is characterized in that, described control circuit also comprises:
Relay drive circuit, is connected with described relay, for driving described relay adhesive or disconnection; And
Optocoupler change-over circuit, be connected between described controller and described relay drive circuit, for being high level by low transition corresponding for described control command, obtain high level control command, described high level control command performs drive actions for controlling described relay drive circuit.
4. the control circuit of Transformer Winding according to claim 1, is characterized in that, described relay is low-vacuum load-tripping device or high-voltage relay.
5. a proving installation for transformer, is characterized in that, comprising:
Storer, for storing test program, described test procedure is used for performing test processes to transformer to be tested;
Program chooser, for selecting target program from described test procedure; And
The control circuit of the Transformer Winding according to any one of Claims 1-4, be connected with described storer, and be connected with described program chooser, for the target program selected by described program chooser to described transformer performance objective test processes to be tested.
6. the proving installation of transformer according to claim 5, is characterized in that, also comprises:
For pressure part, have first end and the second end, described first end is used for being connected with the winding of described transformer to be tested, and the described pressure part that supplies is used for providing test voltage for the described winding of described transformer to be tested; And
Telecommunication circuit, is connected to controller in the control circuit of described Transformer Winding and described between pressure part, for transmitting described controller and described for the communication data between pressure part.
7. the proving installation of transformer according to claim 6, is characterized in that, described telecommunication circuit comprises: switch, is that data send state or data receiving state for controlling the state of described controller.
8. the proving installation of transformer according to claim 6, is characterized in that, the described pressure part that supplies comprises voltage resistant instrument.
9. the proving installation of transformer according to claim 6, it is characterized in that, also comprise: display, be connected with described controller, for show in following information any one or multiple: the magnitude of voltage of the target program selected by current test, described test voltage and voltage kind, test result.
10. a test macro for transformer, is characterized in that, comprising:
One or more transformer to be measured;
The proving installation of transformer according to claim 5, is connected with one or more transformer to be measured described, for performing test processes to one or more transformer to be measured described; And
Power supply, is connected with the proving installation of described transformer, for providing testing power supply for the proving installation of described transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709296.4A CN104459500A (en) | 2014-11-26 | 2014-11-26 | Control circuit of transformer winding and testing device and testing system of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709296.4A CN104459500A (en) | 2014-11-26 | 2014-11-26 | Control circuit of transformer winding and testing device and testing system of transformer |
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| Publication Number | Publication Date |
|---|---|
| CN104459500A true CN104459500A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410709296.4A Pending CN104459500A (en) | 2014-11-26 | 2014-11-26 | Control circuit of transformer winding and testing device and testing system of transformer |
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| Country | Link |
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| CN (1) | CN104459500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772117A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of integrated testing instrument for transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091722A (en) * | 2014-07-22 | 2014-10-08 | 无锡中微爱芯电子有限公司 | Relay drive circuit |
| CN203870176U (en) * | 2014-04-22 | 2014-10-08 | 北京航天光华电子技术有限公司 | Transformer test system |
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2014
- 2014-11-26 CN CN201410709296.4A patent/CN104459500A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203870176U (en) * | 2014-04-22 | 2014-10-08 | 北京航天光华电子技术有限公司 | Transformer test system |
| CN104091722A (en) * | 2014-07-22 | 2014-10-08 | 无锡中微爱芯电子有限公司 | Relay drive circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772117A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of integrated testing instrument for transformer |
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Application publication date: 20150325 |