CN2413966Y - Excitation regulator test instrument - Google Patents
Excitation regulator test instrument Download PDFInfo
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- CN2413966Y CN2413966Y CN 00231187 CN00231187U CN2413966Y CN 2413966 Y CN2413966 Y CN 2413966Y CN 00231187 CN00231187 CN 00231187 CN 00231187 U CN00231187 U CN 00231187U CN 2413966 Y CN2413966 Y CN 2413966Y
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Abstract
The utility model relates to an excitation regulator test instrument which is an electronic device for dynamic detection for an excitation regulator of a diesel-electric set. The utility model is characterized in that the utility model is provided with three-phase variable power supply of a simulated generator and a control circuit thereof, and a simulated generator excitation circuit and a control circuit thereof. The output of the simulated circuit is used by the excitation regulator to be measured, and the excitation regulator is in a working state and replaces the motor test stand to carry out dynamic detection. The utility model has the advantage of convenient operation, low cost and convenient generalization, and the utility model solves the problem that the dynamic detection to the excitation regulator in the past can only be conducted on the motor test stand.
Description
The utility model relates to a kind of electrical analyzer, is to be applicable to the electronic machine that the excitation regulator of diesel powerplant is carried out detection of dynamic.
Diesel powerplant is the important construction equipment of railway, engineering department, and its excitation regulator is to keep alternating-voltage stabilization, guarantees the critical component of mechanical normal operation.At present the fault of this excitation regulator is carried out detection of dynamic, can only on motor experimental bench, carry out, but motor experimental bench equipment is numerous and diverse, the expense costliness, generally unit in charge of construction is unable purchases.
The purpose of this utility model will address the above problem exactly, provides a kind of simple in structure, and cost is lower, can be applicable to the detector of detection of dynamic different model adjustment of field excitation.
The purpose of this utility model can realize in the following manner.
Design simulation electrical generator three-phase variable current part I in this excitation regulator detector, simulation excitation circuit part II, test conversion part III, oscillography display part (IV), and power circuit.
The formation of simulation electrical generator three-phase variable power supply part I is: voltage doubling rectifying circuit 1, DC chopped-wave voltage-regulating circuit 2, three-phase inverting circuit 3 connect step by step, and DC chopped-wave voltage-regulating circuit 2 also connects its control circuit 4, and three-phase inverting circuit 3 also connects its control circuit 5; In simulation excitation circuit part II, constitute the excitation curve circuit by transformation and rectifying circuit, also be provided with the light beam display circuit, test conversion part III connects the excitation curve circuit.By simulation electrical generator three-phase variable power supply part I and the operation of simulation excitation circuit part II simulation three phase alternator, and supply with excitation regulator and use, make excitation regulator in running order, be convenient to its fault is carried out detection of dynamic.
Good effect of the present utility model is:
(1) circuit with the operation of simulation three phase alternator makes tested excitation regulator in running order, substitutes motor experimental bench its fault is carried out detection of dynamic, not only reaches the maintenance purpose but also economize on the use of funds, and is easy to utilize;
(2) this detector also is provided with the test conversion device, can be applicable to that the excitation regulator of T2S type and KLT-5 type different models uses;
(3) simple in structure, intuitive display is convenient to execute-in-place.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model circuit structure block diagram;
Fig. 2 is voltage doubling rectifying circuit, DC chopped-wave voltage-regulating circuit and control circuit schematic diagram thereof;
Fig. 3 is three-phase inverting circuit figure;
Fig. 4 is that the three-phase inversion control circuit constitutes block diagram, and 14 is oscillators among the figure, and 15 is eight frequency dividing circuits, 16 is six bat producers, the 17th, pwm pulse forms circuit, and 18-1～18-6 is optical coupling isolation circuits, and 19-1～19-6 is shaping pulse and amplifying circuit (more than be current techique);
Fig. 5 is excitation curve circuit, light beam display circuit, test conversion schematic circuit diagram.
Present embodiment is in simulation electrical generator three-phase variable power supply part II, and the power supply of voltage doubling rectifying circuit 1 output offers three-phase inverting circuit 3 after the adjusting of DC chopped-wave voltage-regulating circuit 2; DC chopped-wave voltage-regulating circuit 2 is controlled by its control circuit 4, specifically be constructed as follows: the control circuit 4 of DC chopped-wave voltage-regulating circuit is provided with sampling and regulating circuit 20 connects light-coupled isolation and amplifying circuit 21, the output termination comparator circuit 8 of circuit 21, comparator circuit 8 is established comparator A1, the mouth OA1 of comparator A1 meets gate circuit 10 and input end e door A2,1: 4 dutycycle square wave of dutycycle formation circuit 9 is exported another input end f of termination and door A2, the input end d of 1: 8 dutycycle square wave output termination door A3 of circuit 9, with door A2, the door A3 mouth connect respectively or the door A4 input end, or light-coupled isolation of output termination and the pulse amplifying circuit 11 of door A4, in DC chopped-wave voltage-regulating circuit 2, be provided with switch transistor T
0, switch transistor T
0Base stage connect the mouth of light-coupled isolation and pulse amplifying circuit 11, sampling and regulating circuit 6 are connected on the mouth of DC chopped-wave voltage-regulating circuit 2.
Output voltage U when DC chopped-wave voltage-regulating circuit 2
0During reduction, sampling voltage UR then
11Reduce, through optocoupler and amplifying circuit 21 transistor T 1 collector voltage is reduced, thereby make the end OA1 output high level of comparator A1, then open with door A2, make 1: 4 dutycycle square wave by gate circuit 10 (this moment, 1: 8 dutycycle square wave by door A3 output was capped), process light-coupled isolation and pulse amplifying circuit 11 are delivered to the switch transistor T of circuit 2 again
0Base stage, the just output voltage U of circuit 2
0Rise; Otherwise work as output voltage U
0During rising, the end OA1 output low level of comparator A1 is not then opened with door A2, and the dutycycle square wave can't pass in 1: 4, and have only an A3 to open this moment, so finally deliver to switch transistor T by gate circuit 10
0Be 1: 8 dutycycle square wave, so by master cock pipe T
0The shutoff of opening recently realize output voltage U
0Control (pressure regulation or voltage stabilizing, pressure regulation can realize by regulating electricity group R12).More than referring to Fig. 2, dutycycle forms the incoming signal of circuit 9 among Fig. 2, is to produce the 1200Hz frequency signal that the signal of 2400Hz frequency forms by oscillator behind the frequency-halving circuit frequency division.Each integrated model is: comparator A1 adopts 14574 types, and door A2, door A3 adopt 4073 types, or door A4 adopts 4071 types.
In the three-phase inversion control circuit,, be the 300Hz signal, clap producer 16 frequency divisions through six again and send pwm pulse to form circuit 17 that forming frequency is F1～F6 six road pwm pulses of 50Hz through eight frequency dividing circuits, 15 frequency divisions by the 2400Hz oscillation frequency signal that oscillator 14 produces.This 6 tunnel pulse F11～F16 six tunnel pulses that output amplitude reduces behind optical coupling isolation circuit 18-1～18-6 respectively, shaping pulse and amplifying circuit 19-1～19-6 are delivered in this 6 tunnel pulse more respectively, the base stage that the T1～T6 switching valve of three-phase inverting circuit 3 is delivered in its output respectively controls its conducting or ends, thereby is used for excitation regulator by A, B, C end output three-phase PWM modulation alternating voltage.(referring to Fig. 3,4)
The excitation curve circuit is made of voltage transformer B and full-wave rectifying circuit 12, is connected to test conversion part III between voltage transformer B and rectifier bridge 12, and this test conversion part III is established one 5 and connected single pole double throw switch K '; Light beam display circuit 13 is connected in series the series arm formation in parallel again of luminotron LED1-LED7 respectively by comparator A5～A11.The light beam display circuit is used for detecting the magnitude of voltage on the load R26, and how much shows with the shinny number of light-emitting diode.Be connected on K switch between voltage transformer B and the rectifier bridge ', beat and when 1 or 2 sides, can respectively the excitation curve circuit be connected into T2S type or the KLT-5 type excitation regulator form of detecting, realize the conversion (this circuit is connected with excitation regulator by terminal 6,7, E1, E2) of two kinds of test circuits, more than referring to Fig. 5.
Oscillography display part IV adopts universal oscp, can detect the waveform of each point on the excitation regulator intuitively.Comparator A5～A11 adopts LM324 model (each comparator accounts for the 1/4LM324 chip).Each optocoupler 6N138 chip.
Claims (3)
1, a kind of excitation regulator detector is characterized in that: be provided with simulation electrical generator three-phase variable power supply part (I), simulation excitation circuit part (II), test conversion part (III), oscillography display part (IV), and power circuit;
The formation of simulation electrical generator three-phase variable power supply part (I) is: voltage doubling rectifying circuit (1), DC chopped-wave voltage-regulating circuit (2), three-phase inverting circuit (3) connect step by step, DC chopped-wave voltage-regulating circuit (2) also connects its control circuit (4), and three-phase inverting circuit (3) also connects its control circuit (5);
In simulation excitation circuit part (II), constitute the excitation curve circuit by transformation and rectifying circuit, also be provided with the light beam display circuit, test conversion part (III) connects the excitation curve circuit.
2, excitation regulator detector according to claim 1, it is characterized in that: in simulation electrical generator three-phase variable power supply part (I), the power supply of voltage doubling rectifying circuit (1) output offers three-phase inverting circuit (3) after the adjusting of DC chopped-wave voltage-regulating circuit (2); DC chopped-wave voltage-regulating circuit (2) is controlled by its control circuit (4), specifically be constructed as follows: the control circuit of DC chopped-wave voltage-regulating circuit (4) is provided with sampling and regulating circuit (20) connects light-coupled isolation and amplifying circuit (21), the output termination comparator circuit (8) of circuit (21), comparator circuit (8) is established comparator (A1), the mouth (OA1) of comparator (A1) connects gate circuit (10) and an input end (e) door (A2), 1: 4 dutycycle square wave of dutycycle formation circuit (9) is exported another input end (f) of termination and door (A2), 1: 8 dutycycle square wave of circuit (9) is exported the input end (d) of termination door (A3), with door (A2), the door (A3) mouth connect respectively or the door (A4) input end, or the light-coupled isolation of output termination and the pulse amplifying circuit (11) of door (A4), in DC chopped-wave voltage-regulating circuit (2), be provided with switching valve (T
0), switching valve (T
0) base stage connect the mouth of light-coupled isolation and pulse amplifying circuit (11), sampling and regulating circuit (6) are connected on the mouth of DC chopped-wave voltage-regulating circuit (2).
3, excitation regulator detector according to claim 1, it is characterized in that: described excitation curve circuit is made of voltage transformer (B) and full-wave rectifier current circuit (12), be connected to test conversion part (III) between voltage transformer (B) and rectifier bridge (12), this test conversion part (III) is established one 5 and is connected single pole double throw switch (K '); (A5-A11) is connected in series luminotron respectively, and (series arm of LED1-LED7) is in parallel again to be constituted light beam display circuit (13) by comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231187 CN2413966Y (en) | 2000-04-07 | 2000-04-07 | Excitation regulator test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231187 CN2413966Y (en) | 2000-04-07 | 2000-04-07 | Excitation regulator test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2413966Y true CN2413966Y (en) | 2001-01-10 |
Family
ID=33594133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231187 Expired - Fee Related CN2413966Y (en) | 2000-04-07 | 2000-04-07 | Excitation regulator test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2413966Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969269A (en) * | 2010-10-26 | 2011-02-09 | 重庆全能电器有限公司 | Analog storage battery direct-current power supply |
-
2000
- 2000-04-07 CN CN 00231187 patent/CN2413966Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969269A (en) * | 2010-10-26 | 2011-02-09 | 重庆全能电器有限公司 | Analog storage battery direct-current power supply |
| CN101969269B (en) * | 2010-10-26 | 2012-08-01 | 重庆全能电器有限公司 | Analog storage battery direct-current power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |