CN2443382Y - DC High voltage tester - Google Patents
DC High voltage tester Download PDFInfo
- Publication number
- CN2443382Y CN2443382Y CN 00241481 CN00241481U CN2443382Y CN 2443382 Y CN2443382 Y CN 2443382Y CN 00241481 CN00241481 CN 00241481 CN 00241481 U CN00241481 U CN 00241481U CN 2443382 Y CN2443382 Y CN 2443382Y
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- circuit
- voltage
- coil
- current
- direct voltage
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Abstract
The utility model discloses a DC high voltage tester, comprising a commutation filtering circuit, a voltage regulating loop, a high-frequency inverter circuit, a current and voltage display circuit, an overvoltage and over current breakdown circuit, a pulse width modulation circuit, a zero position control circuit, an overcurrent protective circuit, a high voltage transformer, a voltage doubler rectifier circuit, a measuring resistance, and a direct current high voltage output element. A coil frame of the high voltage transformer is in a cylinder shape. 7-10 winding grooves are evenly distributed on the external surface of the coil frame. The turn ratio of a primary coil and a secondary coil is 3: 1450-3: 1500. A polytetrafluoroethylene film insulating layer is arranged between the primary coil and the secondary coil. The utility model has the advantages of integration and miniaturization.
Description
The utility model relates to a kind of high voltage direct current generator, belongs to a kind of high direct voltage tester that power equipment DC high potential test, research and teaching or factory make high-potting that is used for.At present domestic high voltage direct current generator also has the minority power frequency supply substantially based on intermediate frequency, and DC high-voltage power supply all is a split-type structural, bulky heaviness, not portable transportation brings difficulty for the field condition operation, and must external 220V AC power when using.
A purpose of the present utility model provides that a kind of volume is little, in light weight, integrated, the high direct voltage tester of miniaturization.
Another purpose of the present utility model provides a kind of high direct voltage tester of AC/DC.
A purpose of the present utility model is achieved in that and comprises that current rectifying and wave filtering circuit, pressure-control circuit, high-frequency inverter circuit, current/voltage display circuit, over-voltage and over-current puncture circuit, pulse-width modulation circuit, zero-bit, control, overcurrent, holding circuit, high-tension transformer, voltage doubling rectifing circuit, measuring resistance, high direct voltage output device.The coil rack of high-tension transformer is a cylindrical shape, and the outside surface of coil rack is all laid 7-10 winding slot, and the turn ratio of primary coil and secondary coil is 3: 1450～3: 1500; Establish the poly tetrafluoroethylene insulation course between primary coil, the secondary coil.
Another purpose of the present utility model is to realize like this; described current rectifying and wave filtering circuit is leaded up to automatic charger and is connected by lead with the 12V storage battery; the 12V storage battery is connected with pressure-control circuit by lead, and one the tunnel is connected with control circuit, current foldback circuit, and the work of this machine is given in power supply.
The push-pull type DC-DC inversion principle of the utility model application of advanced, by improvement to the high-tension transformer structure, the power density and the degree of stability of high-tension transformer have been improved greatly, can under lower voltage, realize the conversion of energy efficient rate, make machine volume and weight significantly reduce, realized integrated, the miniaturization of instrument.Compare with medium frequency equipment, high-tension transformer can be depressed at identical base and obtain more high voltage.Because the utility model is provided with the 12V storage battery, therefore do not need the external application power supply can work yet, reduced the expense of acquiring generator (car), extremely be fit to rural power equipment and detect usefulness.
Below in conjunction with drawings and Examples structure of the present utility model is elaborated.
Fig. 1 is the theory diagram of the utility model tester embodiment.
Fig. 2 is the structural representation of the high-voltage power supply of the utility model tester embodiment.
Fig. 3 is the theory diagram of another embodiment of the utility model tester.
Embodiment
With reference to Fig. 1, present embodiment is that the 220V power supply is reduced to 12V through step-down transformer and inputed to current rectifying and wave filtering circuit, current rectifying and wave filtering circuit one tunnel is connected with pressure-control circuit, one the tunnel with control circuit, cross current circuit and be connected, pressure-control circuit is connected with voltage doubling rectifing circuit through high-frequency inverter circuit, high-tension transformer, voltage doubling rectifing circuit one tunnel is connected with the high direct voltage output device, and one the tunnel punctures circuit through measuring resistance, current/voltage display circuit, over-voltage and over-current connects; High-tension transformer punctures circuit with over-voltage and over-current and is connected; Over-voltage and over-current punctures the circuit via pulse width modulation and is connected with high-frequency inverter circuit, and over-voltage and over-current punctures circuit and is connected with holding circuit; Holding circuit is connected with control circuit, and the zero-bit circuit is connected with control circuit; Crossing current circuit is connected with holding circuit.With reference to Fig. 2, the utility model is high-tension transformer 10, voltage doubling rectifing circuit 8, measuring resistance 9, high direct voltage output device to be placed on form high-frequency and high-voltage power supply in the casing 7.High-tension transformer 10 is made up of FERRITE CORE, coil rack, coil.FERRITE CORE is a C sections core, and specification is 73 * 43 * 13mm.Coil rack adopts nylon 101 or polytetrafluoroethylmaterial material to make.Coil rack is a cylindrical shape, its length 39-41mm, thickness 3.5～4.5mm, outside surface 7-10 the winding slot 11 that evenly distribute, and coil rack closely is sleeved on the FERRITE CORE.Coil winding coil rack around in groove 11, primary coil is with the 2.36mm enameled wire and around forming, secondary coil is with 0.08mm enameled wire single line coiled, primary coil and secondary coil turn ratio are between 3: 1450～3: 1500.Between the primary and secondary coil with poly tetrafluoroethylene insulation, layering coiling.The high direct voltage output device is drawn inserted link 2 by buried electrode 12 and high pressure and is formed.Buried electrode 12 adopts nylon 101 or polytetrafluoroethylmaterial material to make, its inner hollow, and one end configured electrodes copperhead 6 is connected with voltage doubling rectifing circuit 8, and voltage doubling rectifing circuit 8 is connected with measuring resistance 9 leads.Buried electrode 12 other end peripheral hardware 3-4 utmost point full skirts 5, full skirt 5 stretches out outside the casing 7, its end configuration securing member 1, securing member 1 adopts turnbuckle.High pressure is drawn inserted link 2 and is also adopted nylon 101 or poly-tetrem alkene material to make.High pressure is drawn inserted link 2 and is inserted in the buried electrode 12.High pressure is drawn in the inserted link copperhead 3 intercalation electrode copperheads 6 of inserted link 12 1 ends configuration.High pressure is drawn and is installed with the high-tension shielding cable in the inserted link 12.High-tension shielding cable one end is connected with inserted link copperhead 3, and its other end is drawn high pressure and drawn inserted link 2 outsides.Principle of work of the present utility model: when using the alternating current 220V power supply,, reduce to 12V through current rectifying and wave filtering circuit through step-down transformer again, supply with complete machine work by instrument power source line input 220V alternating current.If the pressure regulation potentiometer makes zero and protects normally,, connect the machine inner control circuit, pulse-width modulation circuit, holding circuit, display circuit by the start key control loop action of control.Pressure-control circuit is regulated square wave amplitude; through high-frequency inversion; the 12V direct supply is become the high frequency exchange current supply with high transformer; boost to 10000V; pass through voltage multiplying rectifier again; produce dc high-voltage, route high direct voltage output device output, the one tunnel through measuring resistance to show circuit, protection loop.
Another embodiment, identical with reference to Fig. 3 with example structure, just on this tester, disposed the 12V storage battery.The 12V storage battery is leaded up to automatic charger by lead and is connected with current rectifying and wave filtering circuit, and one the tunnel is connected with regulating loop, and another road is connected with control circuit, overcurrent, holding circuit, and power supply is to complete machine work.Each circuit described in the utility model is conventional design.
Claims (3)
1, high direct voltage tester is to comprise that current rectifying and wave filtering circuit, pressure-control circuit, high-frequency inverter circuit, current/voltage display circuit, over-voltage and over-current puncture circuit, pulse-width modulation circuit, control, zero-bit, overcurrent, holding circuit, high-tension transformer, voltage doubling rectifing circuit, measuring resistance, high direct voltage output device; It is characterized in that: the coil rack of described high-tension transformer (10) is a cylindrical shape, and the outside surface of coil rack is all laid 7-10 winding slot (11), and the turn ratio of primary coil and secondary coil is 3: 1450～3: 1500; Establish the poly tetrafluoroethylene insulation course between primary coil, the secondary coil.
2, high direct voltage tester according to claim 1; it is characterized in that: described current rectifying and wave filtering circuit is leaded up to automatic charger and is connected by lead with the 12V storage battery; the 12V storage battery is connected with pressure-control circuit by lead; one the tunnel is connected with control circuit, overcurrent, holding circuit, and the work of this machine is given in power supply.
3, high direct voltage tester according to claim 1, it is characterized in that: described high direct voltage output device is to insert high pressure in the buried electrode (12) to draw inserted link (2), buried electrode (12) inner hollow, one end configured electrodes copperhead (6) is connected with voltage doubling rectifing circuit (8), buried electrode (12) other end peripheral hardware 3-4 utmost point full skirt, its end configuration securing member (1); High pressure is drawn in inserted link copperhead (3) the intercalation electrode copperhead (6) of inserted link (2) one ends configuration; Establish high-tension shielding cable one end in the high pressure leading-off rods (2) and be connected with inserted link copperhead (3), its other end places the outside of high pressure leading-off rods (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241481 CN2443382Y (en) | 2000-07-23 | 2000-07-23 | DC High voltage tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241481 CN2443382Y (en) | 2000-07-23 | 2000-07-23 | DC High voltage tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2443382Y true CN2443382Y (en) | 2001-08-15 |
Family
ID=33601914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00241481 Expired - Fee Related CN2443382Y (en) | 2000-07-23 | 2000-07-23 | DC High voltage tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2443382Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592718B (en) * | 2009-07-13 | 2011-06-01 | 河北安电电力器材有限公司 | High-pressure electroscope field detector |
| CN102662098A (en) * | 2012-06-04 | 2012-09-12 | 内蒙古自治区计量测试研究院 | Method for measuring high voltage and high resistance by means of ratio overlaying |
-
2000
- 2000-07-23 CN CN 00241481 patent/CN2443382Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592718B (en) * | 2009-07-13 | 2011-06-01 | 河北安电电力器材有限公司 | High-pressure electroscope field detector |
| CN102662098A (en) * | 2012-06-04 | 2012-09-12 | 内蒙古自治区计量测试研究院 | Method for measuring high voltage and high resistance by means of ratio overlaying |
| CN102662098B (en) * | 2012-06-04 | 2015-09-23 | 内蒙古自治区计量测试研究院 | High voltage, high-resistance method is measured with ratio stacked system |
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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 |