A, AB930D-30 type winding impulse voltage withstand test instrument (cabinet) overview
AB930D-30 type winding interturn impulse withstand voltage tester is suitable for rated voltage 10500V The following small and medium-sized winding AC and DC motor insulation test, can also be used for transformer windings, electrical coil winding interturn insulation detection. A part of electric motor, electric tools, etc. are the main transformer coil winding, because the coil insulation material is not the same, especially the difference operator process level, making all kinds of coil products in production and handling will cause insulation damage in different degree, there are various forms of insulation failure between coil and winding in turn, these weak links and before breakdown or failure in not meet certain conditions, the inherent inductance of the coil or winding L The quality factor Q The value of distributed capacitance and resistance and basically had no obvious change, using conventional means usually could not be identified, which planted a hidden trouble to the coil. Therefore, the inter turn insulation performance is the key parameters of motor, transformer etc.. Our country GB755-87 "Basic technical requirements of rotating machine", GB14711-93 In the "general safety requirements" and other small rotary motor of the motor must be finished and semi-finished products for impregnation before and after interturn insulation withstand voltage test.
At present, both at home and abroad for the detection of motor, transformer, electric winding quality of the commonly used method of pulse comparison method. Between the coil and applying a high voltage pulse is very short, used to simulate the impact of switching lightning wave, due to the high voltage pulse of short time energy is small, is a kind of nondestructive test, through the sampling analysis, can directly, quickly and correctly determine winding inter turn short circuit of various abnormal fault.
Interturn instrument can detect the following fault:
1) interturn insulation breakdown (interturn short circuit)
2) corona discharge
3) winding
4) the number of turns of difference
5) winding is connected to the wrong line, line fault block
6) the breakdown, short
Two, AB930D-30 type winding impulse voltage withstand test instrument (cabinet) main technical parameters:
1. power supply voltage: 220V . 5% , 50/60HZ
The 2. shock wave frequency: the frequency of 50HZ When 6.25HZ The frequency of power supply. 60HZ When 7.5HZ
The 3. shock wave voltage: 3~30KV The range can be adjusted continuously
4. digital peak voltage display: 1~30KV . 5%
5. storage capacitor: Zero point one Mu F (or according to user requirements)
6. humidity: 0~40 C
Relative humidity: less than 7. 80%
8. dimensions: L * B * H650mm * 650mm * 1750mm (including roller)
Weight: about 9. 150kg
10. sampling oscilloscope technical parameters refer to attachment (manual)
Three, AB930D-30 type winding impulse voltage withstand test instrument (cabinet) working principle
AB930D-30 type winding interturn impulse withstand voltage tester circuit structure as shown in the block diagram. The machine is composed of high voltage generating circuit, discharge device, high speed A/D Sampling and PC etc.. The working process is: 220V After the power supply way of PC, another way for the host, thyratron ( One million two thousand and twelve The filament preheating start). Preheat Ten Minutes later, the host can enter the test condition. High pressure device starts working, high voltage power supply charging of a storage capacitor with high voltage rectifier. At this time, to accept the thyratron trigger unit PC signal, energy storage capacitor power through the thyratron, a current limiting resistor to test output terminals, a high voltage pulse applied to the measured coil, generating shock wave attenuation in the test coil and signal processing by the sampling circuit and high-speed sampling system by the host computer is clear and stable display attenuation waveform, and by a shock wave and no discrimination coincidence of the interturn insulation quality.
Fourth, cabinet renderings
Five, operation method
AB930D-30 type winding interturn impulse withstand voltage tester at work will produce high voltage, especially when using Caution!, please read the manual carefully before use. The operating personnel must be trained. In addition to operating personnel, other personnel should not stay in the test site.
1. the first cabinet must be reliable grounding (under the rear panel has a ground terminal), then access 220V Power Supply。
2. through the power switch, the PC boot, then PC LCD screen display.
3. then you want to test the load (please press this manual wiring "six. Wiring method).
4. the interface in "impulse voltage", "impact times", "poor" area of the line, the parameters of the phase difference of the upper set on the basis of the measurement requirements. Press the "impulse voltage adjustment" button to observe the impulse voltage value displayed "whether the" impulse voltage settings ". If you reach the accuracy in 5% Within the line, otherwise click "impulse voltage adjustment" button.
In the "5. model" input storage product model bar. Then enter the corresponding content at the interface of the upper left "product number" and "inspector" in this column.
6. fertile.
Two parameters control the waveform changes 7. interface must be preset before the test. Such as digital oscilloscope, waveform amplitude control," V : XX "There are five. Respectively " 0.1V "," 0.2V "," 0.5V "," 1.0V "," 2.5V ". If you want to 2900V Voltage test, please click on the size or the amplitude by long. Temporarily set" 1.0V "The files. Waveform frequency control" M : XXX S "The frequency of ten files" 0.8 S " , " 1.6 S "," 3.2 S "," 6.4 S "," 12.8 S "...... If it is a single coil high voltage coil of the play, or you can click "set to temporarily adjust the frequency" 6.4 S "The files. The above temporary data to adjust according to the actual load waveform.
8. after completion of the above settings, you can test. Click the test button, you can enter the load test. This interface is a normal waveform, click "save" button, which is stored in the switch waveform interface. The load waveform and save the test with the same type of automatic waveform comparison, determine the failure if the overrun. When the light turns red, and send an alarm. Click the "reset" button for standby. If you decide not to exceed the limit of qualified, the light turns green. You must click the "reset" button to standby for the same type of load to enter the next test.
9. during the test, if it is found that the shock times did not reach the set number, click on the "reset" button, then click the "test" button to complete the test.
10. cursor adjustment:
All the preset work done, click on the "left", drag the cursor between the second lattice and third lattice.
The right to calculate the section drag the cursor.
11. storage method is compared with a standard waveform storage and loading with the same model test conditions test waveform. In order to determine the potential difference between turns.
Six, AB930D-30 type winding impulse voltage withstand test instrument (cabinet) wiring method
Seven, AB930D-30 type winding impulse voltage withstand test instrument (cabinet) sets
Impulse withstand voltage tester winding One platform
An instruction manual One share
Foot switch One only
Power cord .1 root
Test line One set
Product certificate One share
Eight.AB930D-30 type winding interturn impulse withstand voltage tester (cabinet) other
1. the instrument should be to keep the temperature in the room Zero C ~ Forty C, the relative humidity is less than 80%, and in the air does not contain harmful substances to cause corrosion.
2. warranty period: from the delivery date, for a period of one year.
In 3. the company product life-long maintenance.
4. the warranty period, due to improper operation of the user caused by damage to the instrument, maintenance fee.
5. manufacturing plants have the right to change without notice of the instrument.
L EFUP
Poisonous and harmful substances or elements contained in the instrument is not used in the normal conditions, leakage or mutation, users use the instrument will not cause serious pollution to the environment or causing serious damage to the person and property of the period Ten Year.
The poisonous and harmful substances or elements of the name and content identification
Part name of toxic and hazardous substances or elements
Lead (Pb) and mercury (Hg) and cadmium (Cd)
Six hexavalent chromium (Cr (VI))
Polybrominated biphenyls (PBB)
Two polybrominated diphenyl ether (PBDE)
A body of XXX, XXX
Shell plating XXX X Eighty
LCD screen X Eighty X Eighty
Circuit board X XXX, eighty
Contactor X XXX, eighty
Transformer (pressure regulator ) X XXX eighty
switch X XXX, eighty
Ten: the concentration of the hazardous substance in all homogeneous materials in the parts are in SJ/T11363-2006 The standard limits for the following.
X said: this hazardous substance contained in at least one of the homogeneous materials. SJ/T11363-2006 Limit standard requirements.
Note: This product 80% Manufacture of components using non-toxic environmentally friendly materials, instead of containing toxic and hazardous substances or elements of parts because of global technical level limit and cannot achieve the toxic and hazardous substances or elements.