I. Overview
1.1 Introduction
Turn to Turn Surge Impulse Tester(i.e. Digital interturn test instrument ) can efficiently carry out non-destructive electrical test on the component with some coil windings. Its principle is to apply the same pulse voltage on both coil winding under test and standard one, and then compare their transient waveforms, so as to test the quality of coil winding under test. Transient waveform (i.e. waveform of the damped oscillation occurring in the coil) can judge this winding’s inductance, quality factor, coil turn difference and interturn short circuit; if the winding is equipped with a core, it also can judge its material difference and so on. In the case of applying high-voltage pulse, the occurrence of corona discharge can also judge its poor insulation. In a word, for various elements to indicate the coil quality, their inspection can be completed within a short period of time.
HZ211S-10/HZ212S-10 series Turn to Turn Surge Impulse Tester, which is manufactured by our company, adopts micro computer technology to quantize various parameters of waveform, and then use the intuitive waveform for display and judgment. Its operation is simple, its judgment is accurate, and its degree of automation is high. The instrument is small in size, and light in weight, which is easy to carry.
1.2 Model selection of Turn to Turn Surge Impulse Tester
Due to different products to be tested, user needs to select an appropriate Turn to Turn Surge Impulse Tester according to the actual situation. The following table lists the features of some Turn to Turn Surge Impulse Testers for user selection.
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Instrument model |
Description of main features |
New style |
HZ212S-10 series |
LCD, multi-winding , saving the standard waveform, having the functions of storage, sorting, communication, and multi-channel comparison |
HZ211S-10 series |
LCD, single-winding , saving the standard waveform, having the functions of storage, sorting, and communication |
|
Old style |
HZ212-05 series |
LCD, multi- winding, saving the standard waveform, having the functions of storage, and multi-channel comparison(sorting and communication need to be customized) |
HZ211A-05 series |
LCD, single winding, saving the standard waveform, having the functions of storage, and dual-channel comparison (sorting and communication need to be customized) |
|
HZ211-05 series |
LCD, single winding, saving the standard waveform, having the function of storage (sorting and communication need to be customized) |
|
HZ201A-05 series |
LCD, dual-channel comparison, having no function of storage, sorting, and communication |
1.3 Main technical indexes
Model |
HZ211S-03 |
HZ212S-03 |
HZ211S-05 |
HZ212S-10 |
HZ211S-10 |
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Number of channels |
1 channel |
3 channel |
1 channel |
3 channel |
1 channel |
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Range of pulse voltage |
300V-3KV |
500V~5KV |
1KV-10KV |
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Accuracy of pulse voltage |
±5%±15V |
±5%±25V |
±5%±50V |
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Step of pulse voltage |
50V |
100V |
200V |
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Measurement speed |
Approx. 5 times/s |
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High-voltage power supply control |
Switching power supply is controlled by MCU |
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Numbers of impulses |
Single EXT (1-29 times); continuous INT |
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Trigger mode |
Manual, Foot control, PC |
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Detection and judgment mode |
Area; differential area; corona discharge quantity; phase |
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Sound mode |
"Up to standard” sound; ”Not up to standard” sound; mute |
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Storage capacity of waveform |
100 waveforms and their parameters |
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Waveform resolution |
A/D： 8 bit； sampling speed： 25nS （40MHz）； point number of waveform： 250 |
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LCD |
Resolution: 320 x 240; 5.1 inches; white letters on a blue background |
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Power |
40W |
50W |
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Power input |
220VAC±10% 50Hz±5% |
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Dimension |
400(W)×132(H)×430(D) |
Weight |
Approx. 10Kg |
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Environment condition |
Operating temperature:10℃—30℃; Operating humidity: 20%—80% RH |
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Storage temperature: 5℃—40℃; storage humidity: 5%—90%RH |
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Special functions and parameters |
Customized according to user requirements |
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