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Winding Component tester
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5KV
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TH2882A-5

Economic Impluse Winding Tester
Pulse Voltage output: 500V-5KV
Waveform sampling rate: 40Msps
The min test inductance 20uH
Pass/Fail sound/light alarm output
Single Phase
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Product description

Features

■ Low inductance impulse test: down to 10μH

■ Low energy test without damaging the coil

■ Fast detection of winding insulation at a speed of 5.5 meas/sec

■ 4 kinds of waveform comparison methods

■ Up to 40 MSPS sampling rate

■ 320×240 dot-matrix graphic LCD display

■ Chinese and English operation languages

■ Fridndly user's interface and easy operation

■ Multi-trigger mode programmable

■ Voltage, Time and Frequency measuring function

■ Direct display of comparison result

■ Keyboard lock and password protection function

■ Handler, RS-232C, and GPIB(optional) interfaces

■ 500 groups of waveforms can be stored in USB disk(optional)

■ Multi-channel scan control interface: SCANNER (optional)

 

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 highspeed sampling technique, is a new generation analysis test instrument for insulation performace 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

 

Theory of Impulse Test of Coil-winding

■ 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.

 

Specifications

Model

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

(1KΩ Resistive Load)

≤ Max. 90 milli-Joules

≤ Max. 250 milli-Joules

Type of Coil

Single-phase

Three-phase three-wire

Three-phase four-wire

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)

 

Accessary

Standard
Accessories name Model  
High Voltage Test Cable TH2883-01
Foot wtich TH2881-001

 

Optional
Accessories name Model  
GPIB Interface Board TH10001
TH2818-USB Main Control Board TH26025
Keyword:
Economic Impluse Winding Tester
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