Product Introduction
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
Application
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
Selection Reference
Zinc Oxide Surge Arrester DC Reference Voltage and Leakage Current Test
|
Rated voltage of arrester (kV) |
10 |
35 |
66 |
110 |
220 |
|
DC reference voltage ( kV) |
28 |
90 |
135 |
168 |
314 |
|
Model ( kV / mA) |
ZGS - 60 / 2 |
ZGS - 120 / 2 |
ZGS - 200 / 2 |
ZGS - 200 / 2 |
ZGS - 400 / 3 |
Select according to substation voltage level
|
Substation voltage level kV |
10 |
35 |
66 |
110 |
220 |
330 |
|
Max test voltage kV |
47 |
105 |
135 |
192 |
305 |
More than 400 |
|
Model kV / mA |
ZGS - 60 / 2 |
ZGS - 120 / 2 |
ZGS - 200 / 2 |
ZGS - 200 / 2 |
ZGS - 400 / 3 |
ZGS - 800 / 10 |
DC withstand voltage and leakage current test for paper insulated cables
|
Cable rated voltage Uo / U kV |
3.6 / 6 |
6 / 6 |
6 / 10 |
8.7 / 10 |
21 / 35 |
26 / 35 |
|
DC test voltage kV |
17 |
30 |
40 |
47 |
105 |
130 |
|
Model kV / mA |
ZGS - 60 / 2 |
ZGS - 60 / 2 |
ZGS - 60 / 2 |
ZGS - 60 / 2 |
ZGS - 120 / 3 |
ZGS - 200 / 5 |
DC voltage withstand and leakage current test for rubber and plastic insulated cables
|
Cable rated voltage Uo / U kV |
6 / 10 |
8.7 / 10 |
21 / 35 |
26 / 35 |
48 / 66 |
64 / 110 |
127 / 220 |
|
DC test voltage kV |
26 |
37 |
63 |
78 |
144 |
192 |
305 |
|
Model kV / mA |
ZGS - 60 / 2 |
ZGS - 60 / 2 |
ZGS - 120 / 5 |
ZGS - 120 / 5 |
ZGS - 200 / 5 |
ZGS - 200 / 10 |
ZGS - 400 / 5 |
DC withstand voltage and leakage current test of main insulation of self-contained oil-filled cable
|
Cable rated voltag Uo / U kV |
48 / 66 |
64 / 110 |
127 / 220 |
190 / 330 |
290 / 500 |
|
DC test voltage kV |
175 |
275 |
475 |
585 |
775 |
|
Model kV / mA |
ZGS - 200 / 3 |
ZGS - 300 / 3 |
ZGS - 500 / 5 |
ZGS - 600 / 5 |
ZGS - 800 / 10 |
Product Parameter
|
Model |
300/2 |
300/3 |
|
Rated voltage(kV) |
300 |
300 |
|
Rated current(mA) |
2 |
3 |
|
Rated power(W) |
600 |
900 |
|
HV control unit(kg) |
6.5 |
6.5 |
|
HV Cylinder weight(kg) |
11 |
11 |
|
Cylinder height(mm) |
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 |
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 |
||
Product Feature And Application
1. High precision and accurate measurement. Voltmeter on control cabinet display the voltage applied to load tested equipment. No need to add voltage divider, easy to wire. Equipped with high and low voltage end to measure leakage current. High voltage end adopts round shield digital indication displaying, not worrying discharge shock. It has excellent anti-jam function, which suitable for field operation.
2. With stable voltage regulation, the regulation is smooth at 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, special break-line protection functions. It can protect circuit 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 make 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 digital dial switch, displaying data directly and visually (unit KV).
7. The sampling adopts 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 new material, light and stable. With 3 support feet at bottom, increase the stability. The outer surface of the cylinder is coated with special insulation materials, good electrical performance, strong moisture capacity, 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.
Customer Visit
On Site Service
Packing detail
Our service
01
Pre-sale service
Conduct product consultation, product promotion, and marketing activities, and technical support for customer needs.
02
Delivery service
Packing with wooden cases, provide different solutions of shipping way, accept different payment way. Save shipping cost and make sure the products arrive well.
03
After-sales service
Installation and commissioning of specific products; Respond to consumer questions, answer consumer inquiries, and deal with consumer comments.
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