ZGF Series Intelligent DC Hipot Test Set

ZGF Series Intelligent DC Hipot Test Set is widely used in DC high voltage test of electrical equipment such as zinc oxide surge arresters magnetic blow arresters power cables generators transformers and circuit breakers.

Product characteristics and function
● It adopts large-screen dot matrix LCD with man-machine interaction function;
● Fully automatic measurement function for zinc oxide surge arresters with good repeatability and high precision;
● Automatic test function: the test voltage can be preset and the output voltage can be maintained at a constant voltage;
● Automatic timing function: It can preset the boost time of the standard test voltage and automatically timing after the voltage rises to the standard test voltage after finishing timing it automatically drops voltage.
● The high voltage over-voltage setting is adopted with a microprocessor which has high precision and good reliability;
● Retain the manual test mode;
● Data storage function: Instantly capture test parameters and automatically save test results
● According to the theory of electromagnetic compatibility it is combined special shielding multi-stage isolation and grounding protection measures to prevent damage during discharge;
● With print function can print the test result in-time.

1 Technical Data for the voltage lower than 400kV

Type Parameter	60/2	60/3	60/10	100/4	120/5	200/2	200/5	250/3	250/5	300/3	300/5
Output voltage (KV)	60	60	60	100	120	200	200	250	250	300	300
Output current (mA)	2	3	10	4	5	2	5	3	5	3	5
Output power (W)	120	180	600	400	600	400	1000	750	1250	900	1500
Charging current (mA)	3	4.5	15	6	7.5	3	7.5	4.5	7.5	4.5	7.5
Voltage measure accuracy	± 1.0% (full scale) ±2digit
Current measure accuracy	± 1.0% (full scale) ±2digit
Overvoltage setting error	≤ 1%
0.75 switching error	≤ 1%
Ripple factor	≤ 1.0%
Voltage stability	Random fluctuation, it is no more than 1% when power voltage change ±10%
Way of working	Intermittent use 30 minutes for rated load 10 minutes for 1.1 times rated voltage
Temperature	-15 ~ 50℃
Relative humidity	when the temperature is 25℃ the relative humidity should be less than 90% (non-condensing)
Altitude	less than 2000m

2 Technical Data for the voltage higher than 400kV

Type Parameter	400/10	400/12	400/15	400/20	500/10	600/3	600/5
Rated output voltage (KV)	200/400	200/400	200/400	200/400	250/500	200/400/600	200/400/600
Rated output voltage (KV)	300/400	300/400	300/400	300/400	300/500	300/600	300/600
Rated current (mA)	10	12	15	20	10	3	5
Rated power (W)	4000	4800	6000	8000	5000	1800	3000
Max charging current (mA)	15	18	23	30	15	4.5	7.5
Voltage measure accuracy	± 1.0% (full scale) ±2digit
Current measure accuracy	± 1.0% (full scale) ±2digit
Overvoltage setting error	≤ 1%
0.75 switching error	≤ 1%
Ripple factor	Ripple factor ≤ 2.0% when I_o≤10mA; Ripple factor ≤ 3.0% when I_o≤20mA
Voltage stability	Random fluctuation, it is no more than 1% when power voltage change ±10%
Way of working	Intermittent use 30 minutes for rated load 10 minutes for 1.1 times rated voltage
Temperature	-10 ~ 40℃
Relative humidity	when the temperature is 25℃ the relative humidity should be less than 85% (non-condensing)
Altitude	less than 1500m