Centre break disconnector 72.5KV
1. Simple Structure, reliable property, wide usage, economical and long-time life.
2. Complete specification and satisfy user's different parameters requirements.
3. Connecting terminal and the electric pole is made by casting aluminum-alloy and section bar, having the good property of high-intensity, good flowing and anti-corrosion
4. In the galvanic circle, the section is the combination structure made by screw fix linking, having the good property of stable flowing, high reliability, simple change way and convenient adding volume way.
5. In the galvanic circle, the contact and finger is made by T2Y pure copper tap whose connecting part is coated by 30μ M silver.
6. Finger spring is made by the stainless steel and its design is the inside hiding and outside press structure which is convenient for testing and changing.
7. Bearing block is made by high-intensity casting steel (disposed by hot zinc coating), the height can be adjusted and have the function of damping.
8. All the operating rod and linking rod are supplied by manufacturer, which is convenient for loading, adjusting and testing.
9. Can be supplied as a whole above the ground according to user's requirement.
|
No |
Item |
Technical parameter |
|
1 |
Rated Voltage kV |
72.5 |
123 |
145 |
245 |
|
2 |
Rated Current A |
1250 1600 2000 2500 3150 4000 |
|
3 |
Rated Short Time withstand current and Time kA/s |
25~50/4 |
|
4 |
Rated Peak withstand current kA |
63~125 |
|
5 |
1min power frequency withstand voltage (effective value) kV |
To earth |
140 |
230 |
275 |
460 |
|
To phase |
140 |
230 |
275 |
460 |
|
Across Isolating DS |
180 |
300 |
315 |
605 |
|
6 |
Lightning Impulse wishstand voltage
(peak value) kV |
To earth |
325 |
550 |
650 |
1050 |
|
To phase |
325 |
550 |
650 |
1050 |
|
Across Isolating DS |
405 |
650 |
750 |
1200 |
|
7 |
Rated mechanical terminal load N |
Level of lateral load |
750 |
1500 |
1500 |
2000 |
|
Level of vertical load |
500 |
1000 |
1000 |
1500 |
|
Vertical |
750 |
1000 |
1000 |
1250 |
|
8 |
|
|
|
|
|
|
|
9 |
Max Man Operative Moment N. m |
200 |
|
10 |
Motor Drive operating mechanism control voltage V |
AC220; DC110, 220 |
|
11 |
Motor Drive operating mechanism motor voltage V |
AC220, 380; DC110, 220 |
Hangzhou Yongde Electric Appliances Ltd Company was founded in 1993. As a high-new-tech enterprise in Zhejiang province, it is about 15 kilometers from downtown area.
Our Company is one of the recommended model companies for national power grid construction and transformation. We specialized in manufacturing of 0.22-500kV metal oxide arrester of all types and applications and 10-220kV outdoor high-voltage disconnecting switch.
Currently, our company employs 150 Staffs, with 23 technically-titled and 15 senior technical title holders, who organize a high standard scientific research and development team. Every year we invest many research funds for new product development and acquiring advanced production and testing equipment each month.
Through developing new generations of high-tech products, the technology and production level maintains a leading position in the national level.
The newly developed GW37, GW38 series outdoor high-voltage disconnecting switch have been proved by authorities, which has achieved ideal operating results and won high praise from users.
Our company has a variety of CNC equipments of over a hundred units. In 2001, our company passed the ISO9001 quality inspection, and in August 2010 adopted itself to the ISO9001-2008 version of reinspection.
The annual production capacity of the company is about 6, 000, with well equipped means of inspection for raw materials and purchased spare parts. Each procedure in the manufacturing process is under strict control and supervision. The inspection equipments and instruments are advanced and reliable which effectively guaranteed our product quality.
Yongde holds the quality policy of being 'the technical forerunner, supreme in quality, supremacy of customers, and innovative progressing', so that our products and services successfully satisfied our users. We warmly welcome friends and customers from home and abroad to contact for exchanges and corporations. We also welcome feedbacks from our user communities.
