Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Electric Type |
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NO | Name | Unit | Data | ||||
1 | Rated voltage | KV | 40.5 | ||||
2 | Rated insulating level | Rated 1min power frequency withstand voltage | Dry test (fracture,phase-to-phase,phase-to-earth) | 95* | |||
Wet test (to earth, external insulation) | 80* | ||||||
Lightning impulse withstand voltage (crest) | 185* | ||||||
3 | Rated current | A | 2000 | ||||
4 | Rated short-circuit breaking current | KA | 31.5 | ||||
5 | Rated short-circuit making current( crest) | 80 | |||||
6 | Rated operative sequence | 0-0.3sCO**-180s-CO** | |||||
7 | Rated out-of-phase breaking current | KA | 8 | ||||
8 | The rated single condenser group breaking current | A | 630 | ||||
9 | Rated short-circuit lasting time | S | 4 | ||||
10 | Rated short-circuit breaking times | Times | 20 | ||||
11 | Arcing time | Ms | <20 | ||||
12 | Fully breaking time | Ms | <=85 | ||||
13 | Mechanical endurance( CO) | Times | 10000 | ||||
14 | Rated charge pressure | Apply TD-40.5W/2000-31.5( K) Vacuum arc-chute filled with SF6 | Mpa | 0.02( 20ºC) | |||
Apply TD-40.5W/2000-31.5( K) Vacuum arc-chute filled with dry air and pure nitrogen | |||||||
15 | Annual leakage rate | % | <=1 | ||||
16 | The degree of vacuum arc-chute |
Arc-chute newly produced | Pa | <=1.33X10 -3 | |||
Storage period for 20 years | < 6.6X10 -2 |
1. | Pre sale service |
a. | make technical solution |
b. | send quotation, technical data sheet and drawing |
c. | prepare power transmission plan, testing plan,and shipment plan |
2. | In sale service |
a. | supervise the manufacturing schedule totally in accordance with the plan |
b. | send photos to customer during every manufacturing process(hold point) |
c. | inform the customer one week before testinng. |
3. | After sale service |
a. | installation and commissioning, training the workers |
b. | quick response within 12 hours any time |
c. | provide 12 months gurantee period normally. |
1. Q: | What is your delivery time ? |
A: | Depend on the type of transformer. |
2. Q: | What is your payment term? |
A: | 30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it. |
3. Q: | What kind of starndard you follow? |
A: | IEC, ANSI, CSA, GB, etc |
4. Q: | What kind of supporting documentation you can provide normally |
A: | Quotation,outline drawing,manufacturing plan, quality control plan testing plan, financial report, type test report(KEMA, CESI),reference list,etc |
5. Q: | What is your normal wanrranty period? |
A: | 12 months after transformer operation. |
6. Q: | Can u do installation and commissioningin user's site? |
A: | Yes, we can send our installation team to user's country for service. |
7. Q: | Do you have any experience in this kind of transformer? |
A: | Yes, we can provide reference list for check. |