Brief Introduction
Due to the influence of coil wire material, magnetic material, framework and manufacture technics etc., coil products (such as transformers, motors, etc.) may have defects of low insulation between coil layers, circles and leads. TH2882A series impulse winding tester, adopting high-speed sampling technique, is a new generation analysis test instrument for insulation performance of coil products.
When testing, TH2882A compares the standard waveform stored in the instrument with current measuring waveform. TH2882A gives the PASS or FAIL comparison result according to Area, Differential Area, Corona Discharge, Differential Phase etc. With strong function, precision test method, flexible operation and various interfaces, TH2882A can provide test solution for most coil winding products.
The impulse winding tester tests the electrical characteristics of coil winding without damaging the DUT. The prerequisite conditions for quality of a coil can be detected at just a glance. The detection is carried out when the same electric impulse by capacitor discharge is applied to the standard and the DUT. The voltage decay waveform is generated in response to the impulse, related to the Q-factor and inductance of the coil. In this sense, the tester can detect turn & layer short, the differences in the number of turns and the material of the core. If high impulse voltage is applied, the poor insulation will appear as a corona or layer discharge.
Technical ParameterModel | TH2882A-3 | TH2882A-5 | TH2882AS-5 | |
Output Impulse Voltage | 300V-3000V, 50V Steps ± 5% of set value ± 15V | 500V-5000V, 100V Steps ± 5% of set value± 25V | ||
Voltage Control Mode | Normal | Voltage programmable at the measurement terminals when terminals opened | ||
Constant | Maintaining selected voltage across the winding independent of changes of the winding impedance | |||
Impulse Energy (1K ohm Resistive Load) | ≤ Max. 90 milli-Joules | ≤ Max. 250 milli-Joules | ||
Type of Coil | Single-phase | Three-phase three-wire system Three-phase four-wire system | ||
Inductance Range | ≥ 10μH | ≥ 20μH | ≥ 200μH | |
Display | Screen Mode | 320x240 dots LCD | ||
Waveform Display Dots | 240x200 dots | |||
Display Information | Setting parameter, Standard & measuring waveform, Measurement & comparison result | |||
Waveform Sampling | Sampling Rate | 40MSPS/25ns, 20MSPS/50ns, 10MSPS/100ns, 5MSPS/200ns, 2.5MSPS/400ns, 1.25MSPS/800ns, 625kSPS/1.6μs, 312kSPS/3.2μs | ||
Resolution | digits | |||
Sampling Length | Bytes | |||
Input Impedance | 10MΩ (Resistive voltage divider) | |||
Measuring Speed | 5.5 times/sec (Waveform display OFF, PASS/FAIL ON) | |||
3.3 times/sec (Waveform display ON, PASS/FAIL ON) | ||||
Average Rate | 1-99, Programmable | |||
Waveform Measurement | Voltage, Time, Frequency | |||
Trigger Mode | Internal/Manual (Foot)/External/ BUS | |||
Comparison Mode | Area size comparison, Differential area comparison, Corona discharge differential phase comparison | |||
Area Size Repetition Accuracy | ±1% | |||
Differential Area Repetition Accuracy | ±1% | |||
Detection Output | PASS/FAIL display, Alarm | |||
Alarm Volume | Long high, Long low, Single low, Double low, Off | |||
Memory | groups of standard waveform data can be stored in internal non-volatile memory 500 groups in USB flash memory (optional) | |||
Interface | HANDLER (Start, Stop, Pass NG, Busy, EOC, etc.), RS232C, GPIB(optional) | |||
Chuangkai Electronic Co., Ltd is leading company specialized in producing, developing & selling various types of measuring instruments and testing equipment, such as temperature data logger, LCR meter, DC resistance tester (micro ohm meter), digital power meter, power supply, transformer tester, battery tester, programmable DC electronic load, charger, temperature controller, tachometer, high voltage signal-amplifier, power amplifier, etc.
FAQ:
Q. How is your company's product after-sales service system?
A. The product warranty period is 12 months, we can provide lifetime maintenance. We have professional pre-sales and after-sales teams that can respond to you within 24 hours to resolve technical issues. We provide one-to-one after-sales service.
Q: Can you customize it?
A: Yes, we accept customization according to customer's specific requirements.
Q. How long is your lead time? If I want to customize instruments, how long will it take?
A. When order quantity is 1-10 units, we have ready stock goods, we can ship out within 3-5 working days after receipt of deposit; products required new production of common materials, usually the lead time is about 10-15 days; products requiring new production of special and rare materials, usually the lead time is about 20-30 days.
Q. What payment method do you accept?
A. Our company accept payment method of T/T (bank transfer), Western Union, PayPal and so on.
Q. What package do you use for your products? What shipping method do you use?
A.1. Our company use standard exporting carton for packing. 2. We ship via express courier (door to door service), by air, and by sea according to customers' requirements.
For more questions, please feel free to send inquiries to us.