CN2510873Y - Relay-protection tester - Google Patents
Relay-protection tester Download PDFInfo
- Publication number
- CN2510873Y CN2510873Y CN 01257883 CN01257883U CN2510873Y CN 2510873 Y CN2510873 Y CN 2510873Y CN 01257883 CN01257883 CN 01257883 CN 01257883 U CN01257883 U CN 01257883U CN 2510873 Y CN2510873 Y CN 2510873Y
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- CN
- China
- Prior art keywords
- circuit
- power amplifier
- utility
- logic control
- converter
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a delay protection and measuring instrument, including shell body, a mouse, and a circuit in the shell body. The utility model is characterized in that the shell body board is provided with a display screen and plurality of connection jack, and the circuit in the shell body includes a micro-machine main board, a logic control, a D/A converter, a power amplifier, an A/D converter, a storage circuit. The micro-machine main board is connected with the logical control circuit and the storage circuit, and the logic control circuit is connected with the data storage circuit and the D/A converter circuit. The power amplifier circuit is connected with the A/A converter circuit, and the A/D converter circuit is connected with the logical control circuit. The utility model uses a system one body design and makes a real time closed loop control for the pressure and electricity current power amplifier; the utility model uses the colorful crystal display with whole Chinese view image, real time display and output vector and wave shape picture, small keyboard, convenient mouse operation, high reliability and extensive suiting range.
Description
Technical field
The utility model relates to technical field of electric appliances, specifically a kind of relay-protection tester.
Background technology
Relay is widely used in industries such as automatic control, power circuit detection and protection loop; professional test instrument as relay protection; " testing tool+external computer mode; this mode is because by parallel port Data transmission between computing machine and testing tool; limited the travelling speed of computing machine has also brought inconvenience to operation simultaneously in generally employing at present.
Summary of the invention
Problem to be solved in the utility model is a kind of intelligent relay-protection tester that designs at the deficiencies in the prior art; it combines computing machine and testing tool; operate with the single mouse device; can realize real-time collection to voltage, current signal amplitude phase place is gathered, follows the tracks of and realized to output data in real time, improve the precision and the degree of stability of voltage, current signal output.
Concrete technical scheme of the present utility model is:
Relay-protection tester, comprise housing, Genius mouse and be arranged on the interior circuit of housing, characteristics are that case panel is provided with display screen and several patch jacks, circuit in the housing comprises computer motherboard, logic control, D/A conversion, power amplifier, A/D conversion, memory circuit, the computer motherboard circuit connects logic control circuit and memory circuit, logic control circuit connects data storage circuitry and D/A change-over circuit, and power amplifier connects the A/D change-over circuit, and the A/D change-over circuit connects logic control circuit; Power amplifier comprises current amplification circuit and voltage amplifier circuit.
The utility model adopts the system integration design, and voltage, electric current power amplifier are carried out real-time closed-loop control, the electrical parameter values of monitoring output in real time; Adopt Color Liquid Crystal Display, complete Chinese man-machine interface shows output vector figure, oscillogram in real time, and keypad, mouse action are very convenient, and test report is accurate in detail, and discerns hardware fault automatically, and the reliability height is applied widely.
Description of drawings
Fig. 1 is the utility model front view
Fig. 2 is the utility model circuit block diagram
Fig. 3 is the utility model current amplification circuit figure
Fig. 4 is the utility model voltage amplifier circuit figure
Embodiment
Consult Fig. 1, the utility model comprises housing, Genius mouse and is arranged on the interior circuit of housing, the 1 nonpolarity switching value input end of five couples for setting on the case panel; 2 is three-phase current output terminal and the every low side of electric current; 3 is two pairs of idle contact switching value output terminals; 4 is three-phase voltage output terminal and the public low side of three-phase voltage; 5 is the residual voltage output terminal, the 220V DC voltage exports high and low end and the 110V DC voltage is exported high and low end; 6 is the Genius mouse socket; 7 is power switch; 8 is LCDs.
Consult Fig. 2, the computer motherboard circuit in the utility model adopts PC104, and it connects logic control circuit and memory circuit, and effect is sending and receiving instruction, connection display screen, Genius mouse; Logic control circuit adopts FPGA, and it connects data storage circuitry and D/A change-over circuit, and effect is that data memory circuit, D/A change-over circuit are controlled, and decoding action is arranged; Data storage circuitry adopts 64KSRAM, store sample point; The effect of D/A change-over circuit is to convert the sampled point in the data storage circuitry to sine wave signal; Memory circuit is used for storing test program solid-state electronic dish; Power amplifier is that electric current, voltage signal are amplified; The A/D change-over circuit is to provide the sine wave signal that comes to convert digital signal to power amplifier.
Consult Fig. 3, it is current amplification circuit figure, signal VREF is through D/A converter U3 and U4A, U4B amplifier, the voltage signal that becomes controllable 0-3V enters into 1 pin of two-way switch U1 through 7 pin of U4B, and the 2 pin SF (automatic control signal) that switch to U1 advance logic control circuit, switch to 2 pin of 8 pin of U1 to two-way switch U2 simultaneously, signal switches to U2 again behind 2 pin 1 pin amplifies IC11 through voltage follower TLC, TLD, electric current, the signal of 0-3V is zoomed into the big electric current of 030A; After instrument amplification IL5AD622 and resistance IR8 become the voltage of 0-3V to the electric current of 0-30A, send logic control circuit.
Consult Fig. 4, it is voltage amplifier circuit figure, voltage signal VIN through VL2B filtering, VL1A signal amplify, VL1B follows, N1, P1 boost, P2, N2 electric current amplify, the voltage signal of 0-5V is amplified to 0-75V, switch output through relay J V, 0-75V voltage obtains signal A through VR9, VR12 sampling and send logic control circuit through the VL2A second-order filter.
The utility model is work like this: at first connect the equipment that needs detection, the project that the start back selects corresponding testing apparatus to test with Genius mouse on display screen, click test, the data that the computer motherboard circuit transmits according to display panel (these data are from memory circuit), relevant electrical quantity is passed to logic control circuit, after logic control circuit is handled the data of sending here, the test data of examined equipment is sent into power amplifier by connecting contact, data after power amplifier will be handled are sent into logic control circuit, send the computer motherboard circuit and show through logic control circuit then.
Claims (2)
1, a kind of relay-protection tester; comprise housing, Genius mouse and be arranged on the interior circuit of housing; it is characterized in that case panel is provided with display screen and several patch jacks; circuit in the housing comprises computer motherboard, logic control, D/A conversion, power amplifier, A/D conversion, memory circuit; the computer motherboard circuit connects logic control circuit and memory circuit; logic control circuit connects data storage circuitry and D/A change-over circuit; power amplifier connects the A/D change-over circuit, and the A/D change-over circuit connects logic control circuit.
2, tester according to claim 1 is characterized in that power amplifier comprises current amplification circuit and voltage amplifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257883 CN2510873Y (en) | 2001-11-06 | 2001-11-06 | Relay-protection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257883 CN2510873Y (en) | 2001-11-06 | 2001-11-06 | Relay-protection tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2510873Y true CN2510873Y (en) | 2002-09-11 |
Family
ID=33666561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01257883 Expired - Fee Related CN2510873Y (en) | 2001-11-06 | 2001-11-06 | Relay-protection tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2510873Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435799A (en) * | 2011-04-15 | 2012-05-02 | 北京博电新力电气股份有限公司 | Precise large current generation device and generation method thereof |
| CN110763934A (en) * | 2019-10-14 | 2020-02-07 | 许继电气股份有限公司 | Relay protection testing arrangement |
-
2001
- 2001-11-06 CN CN 01257883 patent/CN2510873Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435799A (en) * | 2011-04-15 | 2012-05-02 | 北京博电新力电气股份有限公司 | Precise large current generation device and generation method thereof |
| CN102435799B (en) * | 2011-04-15 | 2014-01-22 | 北京博电新力电气股份有限公司 | Precise large current generation device |
| CN110763934A (en) * | 2019-10-14 | 2020-02-07 | 许继电气股份有限公司 | Relay protection testing arrangement |
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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 |