Brief introduction
As the development of the electric system, the capacity of the equipment more and more larger, for example, the capacity of single machine of the thermoelectric generator group is more than 1000MW, the capacity of single machine of the hydroelectric generator group is more than 800MW, if use traditional equipment (frequency test transformer) , need large capacity, test transformer, voltage regulator are very heavy, it is not convenient for field test. Serial resonant system is better than traditional equipment in power capacity, device weight, measured waveform and cost. It is special designed for the AC voltage withstand test for hydroelectric generator which its single machine capacity ≤250MW.
Products features
1.Because the resonant system is reactive power full compensated, the power of the equipment and power is only less than 1/10 of measured equipment; with smaller volume and lighter compared with the equipment in same capacity. The device with large output capacity and small power capacity, low cost, easy to operate and safe.
2.Serial resonant system actually is current filter circuit, make the current which through it be fundamental current, the output voltage distortion (THD) is very small, and better than all the AC voltage withstand equipment.
3.The short circuit current after flashover or breakdown is only less than 1/10 (1/Q) of the measured current, can effectively prevent the damage to fault point after breakdown.
4.Auto blowout the arc after flashover, it is a long and stable process to recover the serial resonant voltage, safe.
Technique parameters
| Rated output voltage |
≤0~60kV(AC effective value) |
| Output frequency |
50Hz |
| Resonate voltage waveform |
Sine wave, distortion ≤1% |
| Working mode |
Full power continuous working time: 1min |
| Quality factor |
10~40 |
| Maximum measured capacity |
≤3000kVA |
| Power supply |
380V±15%, frequency:50Hz |
Serial product and application:
| Model |
Application (AC voltage withstand test for generator which voltage ≤20kV,measured frequency: 50Hz) |
| Control cabinet |
Regulator |
Reactor(dry type) |
Excitation transformer (dry type) |
Divider |
Application |
HTXZ-L-
200/25 |
30kW |
30kVA
(electric) |
200kVA/25kV
adjustable 1 set |
30kVA
(dry type) |
30kV |
Hydroelectric generator
0.4-1.0μF
(10kV/40MW) |
HTXZ-L-
300/50 |
60kW |
60kVA
(electric) |
300kVA/50kV
adjustable 1 set |
60kVA
(oil immersed) |
50kV |
Thermoelectric generator
0.27-0.33μF
(20kV/300MW) |
HTXZ-L-
600/50 |
60kW |
60kVA
(electric) |
200kVA/50kV
adjustable 1 set
400kVA/50kV
adjustable 1 set |
60kVA
(oil immersed) |
50kV |
Thermoelectric generator
0.113-0.45μF
(20kV/600MW) |
HTXZ-L-
1200/50 |
120kW |
120kVA
(inductive) |
200kVA/50kV
fixed 2 sets
800kVA/50kV
adjustable 1 set |
120kVA
(oil immersed) |
50kV |
Thermoelectric generator
0.6-1.8μF
(20kV/250MW) |
HTXZ-L-
2750/55 |
300kW |
300kVA
(inductive) |
750kVA/55kV
fixed 2 sets
1250kVA/55kV
adjustable 1 set |
300kVA
(oil immersed) |
60kV |
Thermoelectric generator
1.6-3.3μF
(20kV/770MW) |
Note: make the solution according the measured equipment.
Reference table for capacitance of common hydroelectric generator:
| Category |
Parameters of the generator |
| Rated capacity (MW) |
Rated voltage (kV) |
Phase capacitance (μF) |
| Hydroelectric generator |
72.5~85 |
10.5 |
0.694 |
| 125~150 |
|
1.8~1.9 |
| 300 |
15.75 |
1.7~2.5 |
| 400 |
18.0 |
2~2.5 |
| 600 |
|
2.1~2.5 |
Common problem
1. Is your company a sales company or a manufacturer?
Wuhan Huatian Electric Power Automation CO., LTD.is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2004 and have fifteen years of production experience. Our company has reliable production lines, test rooms and R&D centers.
2. Whether the goods are in stock, whether they can be customized, and how long the delivery time is.
After the goods have been ordered, we can be made to order according to the special requirements of customers by using the latest technology. The delivery time is usually within 10 working days if there are no accidents.
3. Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.
4. What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.
5. What are the cooperative countries or regions?
Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.
Contact us
Wuhan Huatian Electric Power Automation CO., LTD
Address: T4, No. 1, High-tech 2 Road,East Lake High-tech Development Zone,Wuhan
Zip code: 430074
Tel:(+86)-27-8745 7960 / (+86)027-87993136 / 13808601259
Fax: (+86)-27-8799 3136
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