AB930-6, a winding impulse voltage withstand test instrument (desktop) overview
AB930-6 interturn impulse withstand voltage tester is suitable for rated voltage 1140V Small winding motor, DC motor of the following insulation detection, 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
Second, the impact of AB930-6 winding interturn voltage withstand test instrument (desktop) main technical parameters:
1. power supply voltage: 220V . 5% , 50/60HZ
The 2. shock wave frequency: the frequency of 50HZ When 25HZ The frequency of power supply. 60HZ When 30HZ
The 3. shock wave voltage: 0.3~6KV The range can be adjusted continuously
4. digital peak voltage display: 0~6KV . 5%
5. storage capacitor: Zero point one Mu F (or according to user requirements)
The maximum output energy of 6: 1.8J
7. humidity: 0~40 C
Relative humidity: less than 8. 80%
9. host dimension: Four hundred and forty * Four hundred and fifty * Two hundred and thirty
10. sampling oscilloscope technical parameters refer to attachment (manual)
Three, AB930-6 winding impact resistance voltage tester (desktop) working principle
AB930 series windings withstand voltage tester circuit structure as shown in the block diagram. The machine is composed of digital sampling oscilloscope and mainframe.
The working process is: 220V After the power supply a sampling oscilloscope, another way for the host, the thyratron filament preheating. 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, the thyratron trigger unit receives signals, the energy storage capacitor of power limiting resistor to switch to switch through a thyratron" U~V "," V~W "," U~W ". Through the "positive" selection switch. To test the output terminals, forming a high voltage alternating pulse is applied to two different tested coil, attenuation of shock wave generated at the same time at both ends of the two test coils, the sampling circuit to the sampling oscilloscope, synchronous tracking by the oscilloscope, and clear and stable display attenuation wave shape, by coincidence of two shock waves and observation no discrimination of interturn insulation.
Fourth, the impact of AB930-6 winding interturn voltage withstand test instrument (desktop) and rear panel, control key
Impulse withstand voltage tester AB930-6 type winding
The low pressure indicator, the indicator lights the test indicator lamp preheating
The oscilloscope interface will power switch, switch button, forward and reverse U - V key
90 V - W I have the key U - W The key, test key voltage adjustment knob
The fuse holder the "storage,. - Two "switch
The pedal switch socket the grounding end of the cooling fan
These. W 30, head and tail coil V The coil ends
Therefore, U The power socket end coil oscilloscope
Let the power socket plate
Five, AB930-6 winding impact resistance voltage tester (desktop) operation method
One AB930 A series of test instrument produces high voltage at work, especially when using Caution!, the frame must be reliable grounding (rear panel with a grounding terminal) please read the manual carefully before use. The operating personnel must be trained.
2. access 220V The voltage of power line, oscillograph is inserted into the host power socket plate oscilloscope. The oscilloscope interface with the oscilloscope CH1 (or CH2 ) through the interface connected to the good, the foot switch access
3. boot, power indicator light, voltage adjusting knob counterclockwise to Zero Connect the sample to the rear. U , V , W Six terminal connection method (reference seven. Wiring method)
4. adjusting parameters and oscilloscope menu (specific operation instructions refer to the oscilloscope)
5. to preheat indicator light. First select the positive measure, in press U - V The corresponding button, indicator light, tread down pedal switch, press the test button, and clockwise adjust the voltage knob to make value for the test indicators of high voltage value, observe the oscilloscope waveform to distinguish whether the interturn hidden phenomenon, and then press the V - W Button and U - W At the same time, the other two inter turn button discrimination phenomenon, and this is the end of the three-phase motor test. If is the detection of semi-finished products, six lead to reverse the test again, press the test button is reverse, the other.
6. if only the rear single-phase motor U , W Two measurement group terminal, method U , W Two single-phase motor main winding are respectively connected with the same type or two pay winding test.
Six, remote control box description
AB930 type test instrument for internal control (host control) control (control box) of the other. If the implementation of the internal control, please put on the rear panel toggle switch to control, but control all the buttons must bounce, then can the normal operation in internal control. If the implementation of external control the toggle switch on the rear panel dial to control all the seats, but the control button of the internal control must also play up, then you can control the operation of the external control.
Seven, the connection method of UuWw DC motor.
winding One winding Two
winding One winding Two Is the same type of winding
Schematic diagram of stator winding (Note: press the front panel" U-W "Key) WUu
Schematic diagram of the rotor and the connection piece (Note: the top plate press" U-W "Key)
Eight, complete
Impulse withstand voltage tester winding One platform
An instruction manual One share
Foot switch One only
Power cord .1 root
Test line One set
DS-5000 series digital storage oscilloscope One platform
Remote control box One only
Product certificate One share
The other nine.
1. the instrument should be to keep the temperature in the room Zero C ~ Forty C, relative humidity of not more 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.
DS5022ME digital oscilloscope operating instructions
Connect the power (1. AC220V Press the power switch, etc.) 6S After the emergence of the surface at the top right hand corner AUTO Key to the display in the upper left corner AUTO
2. click on the right TRIGGER Box MENU The right button, the menu will appear, as shown below. If the menu is not correct please click the corresponding button, reset menu to the right now
If you use 3. CH1 According to the passage, please OFF Clear menu button, and graphics in each scan line, then click the CH1 button, then the following menu, if the menu is not correct please click the corresponding button, reset menu to the right now
More than 4. menus are correct, down to determine the parameters in the chart below CH1 All 500mVTime20.000us, adopt SCALE/ Turn knob, regulation CH1 All 5V - 2.00mv, adopt SCALE Turn knob adjustment Time50.00S- 20.00nS The following parameters shall prevail
5. then you can press the instrument operation method of interturn began operation, the surface oscillation wave oscilloscope, then the oscillation wave size (amplitude), length (Pin Kuan) by up and down SCALE About. SCALE Turn the knob to change
6. if you want to make the waveform and moving through, please POSITION Turn the knob to change
7. if the waveform is not stable, please LEVEL Turn the knob to change
8. note that the other button can not move as much as possible not to move
9. if the storage method, in determining a good waveform on the oscilloscope, press" REF "Key, then press" save "corresponding keys on the waveform storage oscilloscope.
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
The poisonous and harmful substances or elements
lead (Pb) mercury (Hg) 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.