Application DC voltage test system is widely applied in the DC withstanding voltage test and polarity change-over test of high voltage apparatus, such as high voltage transformers, surge arresters....
Founded in 2004 Shanghai GrandTop Lightning Technology Co., Ltd aims to provide power impulse equipments and test solutions. We can provide SPD test equipments, high voltage test equipments, control....
GTJZF-9 calibration generator is a small and cheap partial discharge corrector, which is powered by batteries. It is easy to carry and use with high accuracy. It can be on-demand with a range of four....
Application This equipment is mainly used for SPD TOV test caused by the failure in low-voltage system. It can be also used in other scientific research. Standard IEC61643.1-2005, GB18802.1-2011, ....
Application Thermal stability test equipment is mainly used to apply DC supply between constant current 2mA~ 20A for SPD and varistors through continuously monitoring the current and surface....
Application GVD series weak damped-capacitive impulse voltage divider are used to measure high voltage full and tail chopped lightning and full switching impulses. Provided with an adequate....
Application Steep waveform generator units are used to generate the steep wave front waveform. They comprises of one steep waveform generator gap unit and resistive voltage divider. The gap unit....
Application The GCQ5 type test system for SPD according to IEC61643 is sophisticated designed to finish the type test and the routine test. The test system includes the high impulse generator for....
The impulse voltage test systems are sophisticated designed to generate the lightning impulse, the chopped impulse, the steep impulse, the switching impulse and other specified impulse voltage. The....
H Type of the Equipment H Type of the Equipment can generate different types lightning impulse current shapes such as 1/ < 20 s, 4/ 10 s, 8/ 20 s, 18/ 40 s and 2ms shapes according the....
Application The C type impulse current test systems with crowbar are sophisticatedly designed to generate impulse current of exponential shapes. The system can be designed in various ways for....
The combination wave generator can output different kinds of waveforms, such as 1.2/ 50us, 8/ 20us, 10/ 700us, 4/ 10us, etc. It is applicable for the class III test of SPD, Varistors and TVSS. ....
The voltage divider consists of several stages of impulse capacitors connected in series. The weak damped resistors adopt the multi-stage layout, impulse capacitors are of no inductance, low voltage....
GTIVG series impulse test systems can be used to generate impulse voltages simulating lightning strokes 1.2 30% / 50 20% s , switching surges ( 250 10% / 2500 10% s) and chopped....
The AC resonant test systems are suitable for testing of equipment with large internal capacitance, such as high voltage cable in several miles, SF6 switchgear, power capacitor, GIS apparatus and....