DC Generator High Voltage Tester

 

ZGS series DC high voltage generator adopts high-frequency voltage doubler circuit, advanced PWM high-frequency pulse width modulation technology, closed-loop adjustment, and large voltage feedback, which greatly improves voltage stability. Use high-power IGBT devices and drive technology with excellent performance, and use special screen leakage, isolation and grounding measurements according to the theory of electromagnetic inclusiveness. The DC high-voltage generator has a high-quality, convenient and portable manner, and can withstand rated voltage discharge without damage. It has the characteristics of large output rate and small size, reliable overvoltage, overcurrent and zero closing protection functions, and 0.75 times voltage switching function. Using new technologies, new materials and new tools, it has the characteristics of large output power, small size and light weight, reliable overvoltage, overcurrent and zero position closing protection functions, with 0.75 times voltage latch function, and equipped with There is a timing relay, which can set a timing sound alarm during the test. The whole instrument is portable, easy to operate, safe and reliable.

 

It is mainly suitable for DC withstand voltage test or DC leakage current test for zinc oxide arresters, power cables, transformers, circuit breakers, generators and other high-voltage electrical equipment in power departments, industrial and mining, metallurgy, steel and other enterprise power departments.

 

1. Conductivity current test for valve arrester

2. DC withstand voltage test and leakage current measurement for power transformer

3. DC withstand voltage test and leakage current measurement for high voltage cable (35~500kV and below)

4. U1mA DC reference voltage test and 0.75U1mA leakage current test for zinc oxide arrester

 

 

Model	200/2	200/3	200/5	300/2	300/3	400/5
Rated voltage(kV)	200	200	200	300	300	400
Rated current(mA)	2	3	5	2	3	5
Rated power(W)	400	600	1000	600	900	2000
HV control unit(kg)	5.5	6	6.5	6.5	6.5	7.5
HV Cylinder weight(kg)	8.7	9	9	11	11	11.5
Cylinder height(mm)	970	970	970	1250	1250	1250
Voltage Accuracy	±(1.0%read＋2b)
Accuracy Of Current	±(1.0%read＋2b)
Ripple Factor	≤0.5%
Voltage Stability	When voltage change±10% stability≤1%
Overload Capacity	The no-load voltage can exceed the rated voltage by 10% for 10 minutes
	Max charging current is 1.25 times rated current
Power Supply	Single phase current 50Hz 220V±10%
  Working Way	Intermittent use: rated load for 30 minutes
	1.1 times rated voltage: 10 minutes
Work Condition	temperature:-10℃～+40℃
	relative humidity:less than 85% under 25℃, without moisture
	altitude:1500M below
Capacitive Load Capacity	The capacity of the test object is unlimited
	It can be charged at 1.5 times rated current
Structure	Electrical insulation voltage cylinder
	Air insulation, no leakage
High Voltage Control Unit Feature Â	High accuracy 0.75UDC1mA One touch button(accuracy≤1.0%),Suitable for zinc oxide arrester test
	Overvoltage protection using digital dialing switch, clear at a glance
	Portable case, more convenient on site
Protection Function	Internal over voltage protection, internal over current protection
	External overvoltage protection (protection voltage can be set), external overcurrent protection or breakdown protection
	Internal power protection
	Non-zero start protection
	Timed sound alarm

1. High precision and accurate measurement. The voltmeter on the control cabinet displays the voltage applied to load-tested equipment. No need to add a voltage divider, easy to wire. Equipped with high and low voltage ends to measure leakage current. High voltage end adopts round shield digital indication displaying, not worrying discharge shock. It has an excellent anti-jam function, which is suitable for field operation.

2. With stable voltage regulation, the regulation is smooth at  the whole range. The output voltage regulation adopts imported single multiturn potentiometer. Stable boost process and high accurate adjustment.

3. With negative polarity output, zero start, continuous adjustment, over-voltage, over-current, zero position, grounding protection, and special break-line protection functions. It can protect circuits automatic, perfect and reliable protection make safe operation.

4. Adopt advanced technology, medium frequency circuit and latest PWM pulse width modulation

technology and high power IGBT, which makes more stable high voltage output and smaller ripple factor.

5. With 0.75 times voltage conversion, convenient to test Zinc Oxide arrester.

6. Over-voltage setting use a digital dial switch, displaying data directly and visually (unit KV).

7. The sampling adopts a special nanosecond sensor and nanosecond optical isolation element, which can quickly and completely shut off the DC main circuit to protect the instrument from damage.

8. The cylinder adopts a new material, light and stable. With 3 support feet at the bottom, increase the stability. The outer surface of the cylinder is coated with special insulation materials, good electrical performance, strong moisture capacity, and no leakage.

9. Case is made of aluminum alloy with small volume, light weight, good appearance, more stable, easy to operate, full function, convenient to use on site.

 

 

 

Number	Name	Amount	Number	Name	Amount
1	Control cabinet	one	7	Fuse	two
2	High voltage doubler	one	8	Ground lead	one
3	High voltage cable	two	9	Micro-ampere meter	one
4	Discharging rod	one	10	Specification	one
5	Water resistance	one	11	Inspection Report	one
6	Power line	one	12	Certification	one

 

 

1. Delivery： Fast delivery and Flexible mode of transportation

2. Payment: Choose payment terms and payment way you convenient

3. Sale service: 24-hour online contact, Choose the right model of equipment according to your request, give the best offer, support customization

4. Warranty period: All machine quality guarantees for one year and life-time technical support for you. Online response to customers' technical problems.

 

 

 

 

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