ST2883 Series Operation Manual
1-1
Chapter 1 Overview
Thank you for your use of our products. Before the use of it, please locate the items listed in this manual to
ensure nothing is missing. If in the case that any item is missing, please contact us immediately.
It is necessary to read this manual carefully before your proper use of ST2883 series impulse winding tester.
Warning!
1)
Operation
Do not put heavy objects on the tester.
There is a cooling fan on the rear side of this instrument, so any block of the air inlet is prohibited.
2)
Rigid power input
The stability of high voltage depends on stable power input. Be sure to provide rated AC power or corrected
power.
3)
Grounding
For the safety of personnel and instrument, ensure the grounding terminal, designed in power cord, be
grounded correctly.
4)
Test cable
To avoid electrical shock hazard, do not touch test terminals and test samples. The reason is that a high
voltage test cable is connected to the rear panel of this instrument, thus when testing, the cable and test
samples connected will carry a high voltage.
5)
DO NOT open case unauthorized!
To avoid the injury to personnel and damage to the instrument, do not open the case unauthorized due to the
existence of high voltage in instrument.
6)
Carry or move
Before moving the instrument, unplug the AC power sockets and remove high voltage test line or external
control line.
7)
Maintenance
In non-use state, the instrument should be covered with a plastic or cloth cover. To clean the tester, wipe the
dirty parts with a soft cloth socked with diluted neutral detergent. Do not use the following chemicals to
clean the instrument: diluent, benzene or organic solvent with similar chemical property with above
materials.
8)
Location
Do not locate the instrument in the environment of high temperature, direct sunlight or poor ventilation. In
addition, the instrument will generate high voltage, so it must be used at room temperature and in the
absence of much dust.
1.1 Production introduction
Due to the influence of wire material, magnetic material, framework and manufacture technics, winding products
such as transformers, motor windings may have defects of low insulation between winding layers, circles and
leads. ST2883 series impulse winding tester, adopting high-speed sampling techniques, is a new test instrument
for insulation performance of winding products.
ST2883 series compares the standard waveform stored in the non-volatile memory with the current tested
waveform. ST883 series provides the PASS or FAIL comparison result according to AREA SIZE,
DIFFERENTIAL AREA, CORONA DISCHARGE or DIFFERENTIAL PHASE. With its strong functions,
