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ZGF series DC high voltage generator is new modern technology product and is new researched, designed, manufactured and required of China industry standard ZBF 24003-90 (generaltechnical requirement of portable DC high voltage generator). It is suitable for electric departments, power departments of factory and mining enterprise, R&D institution,railway, chemical, power generator factory etc to do DC high voltage test of zinc oxide arrester, magnetic blow-out arrester, electric cable, power generator, transformer,switch equipment and so on, and is best and new generation upgrade product.

ZGF series DC high voltage generator adopt high frequency multi-voltage circuit. First leading to adopt newest PWM high-frequency pulse-width modulation technology, closed-loopregulation, and voltage big feedback, it increases stability of voltage. Use excellent performance of big power IGBT device and its technology, moreover adopt special shielding,quarantine and grounding measures and so on according to electromagnetic compatibility theory. So DC high voltage generator has high quality、portable so as to bear ratedvoltage discharge but without damage.

Main parts of ZGF series DC high voltage generator are selected from America, German, Japan foreigner countries etc. advanced technology, it makes instrument to be more stableand reliable. Multi-voltage cylinder body is manufactured by German technologies; high frequency transformer is special designed by experts. It is small size, big capacity andstrong overloading capacity so as to for onsite operation test. Looking forward to the further, enterprises will continue to expand the market actively. Take the quality andprestige as live; continuously improve high-tech level to design with the most up-to-date and high quality product for meet users demand. Develops diligently, recasts the new century magnificence.
 

(1)．Small size、light weight、attractive、reliable、easy operation、full function，suitable for field use and is ideal and reliable product of new generation.

(2)．Adopt the most advanced technology and manufacturing process, first leading apply the newest PWM high-frequency pulse-width modulation technology、pulse train cascaded array modulation; adopt high power IGBT device and use high frequency technology to raise frequency high to 100kHz，so as to output high voltage to be much reliable and smaller ripple factor .

(3)．For unrepairable design, main parts are all selected from America 、German、Japan foreigner countries etc. advanced technology, durable and bear to continuously discharge to ground.

(4)．High precise、accurate in measurement. Current and voltage meter all are digital display, voltage resolution is 0.1kV, current resolution is 0.1uA. Voltmeter which is on control box directly displays the voltage value added at loading of being tested device. No need to add external voltage divider and simple wiring. Device has high and low voltage terminal measure leakage current. Adopt round shielding digital meter display at high voltage terminal to avoid surge of discharge; better anti-interference performance and for onsite use.

(5)．High stability of voltage tune, smooth voltage tune at entire range, adopt import singe multiturn potentiometer for output voltage tune, voltage raising process is smooth and high precise of tune with rough and fine adjustment function. Voltage adjustment precise is better than 0.1%, measure deviation of current and voltage is lower than 1.0%, pulsating factor is better than 0.5%.

(6)．Negative polarity output, zero startup, continuous tune, overvoltage, overcurrent, zero reset, grounding protection, special wire cut off protection function and so on. Strong auto protection circuit, perfect and reliable protection, safe operation, all technical index are better than industrial standard and same category product.

(7)．Adding high precise 75%VDC-1mA function is bring big convenience for zinc oxide arrester measurement. No need to calculate just a press.  75% voltage functional key is on instrument control box, when current raise to 1000uA during arrester test, switch on 0.75 knob and voltmeter and ampere meter show 75% value. Reset the knob of voltage raise to zero position immediately after test finish, and quick press green button to cut off high voltage and shut down power, and do other tests.

(8)．Convenient over voltage setting function, adopt digital driving plate switch, can set voltage value as clear display, easily operate as you choose, displayed value unit is kV.

(9)．Multi-voltage cylinder can be divided into sections, convenient use onsite, multi-functional use and economically.

(10)．3 internal-mounted supporting legs to increase the stability of Multi-voltage cylinder.