Audited Supplier
LW24-72.5/2000A-31.5kA
High Voltage Circuit Breakers
Electric Type
High-Speed Circuit Breaker
Sf6
Fixed
3
Circuit Breaker
VDE, ISO9001-2000, CE, CB, CCC
Conventional Circuit Breaker
Overcurrent Protection, Circuit-Breaker Failure P
Dead Tank
VILLE
Wooden Cases
IEC standard
Ningbo China
33
Product Description
High Voltage Dead Tank 40.5~252KV SF6 Circuit Breaker1.
Brief Introduction
Type LW24- /T outdoor H.V. A.C. dead tank SF6 gas circuit breaker is a new kind of circuit breaker with self-blast
interrupter and spring operating mechanism,on the basis of technology of product imported from Mitsubishi, Japan.The
latest achieve-arc extinguishing principle of gas-blast pressure adapting with breaking-current is employed,by which most
of energy required for breaking rated short-circuit current are acquired from arc itself.Therefore, the demand for operating
power is reduced significantly. The three pole interrupters are placed inside three metal enclosures respectively. The circuit
breaker can be mechanically three-phase gang-operated. Both remote electrical control and local manual control can be
realized. Type CT20-II spring operating mechanism, provided with the product, is a kind of mechanism with low operating
power, minimum maintenance work needed and high reliability. The product reaches international advanced level in the
respect of main technical performance.
LW24-72.5 product passed back-to-back capacitor bank switching test and shunt reactor switching test at High-Power
Laboratory of KEMA,and obtained successfully test certificates of KEMA in November 2004.
2.Normal Service Condition
2.1.Altitude:≤3000m
2.2.Humidity monthly:≤90%2.3.Max .wind velocity:≤35m/s
2.4.Pollution class:IV class
2.5.Ambient air temperature:-35ºC~40ºC(It's satisfied under condition of -40ºC in heavy cold area)
2.6.Max .temperature difference daily: 25K
2.7.Earthquake withstand density:9 degree
2.8.Ice coating: ≤10mm
2.9.Max. radiance from sun: 1000 W/m2
Note: When product is used under the condition out of above range, user and manufacturer shall consult to confirm.
| No. | Name | Unit | Parameters | Parameters | |
| 1 | Product Type | / | LW24-72.5 | LW24-72.5 | |
| 2 | Number of breaks | set | 1 | 1 | |
| 3 | Rated voltage | kV | 72.5 | 72.5 | |
| 4 | Rated frequency | Hz | 50 | 50 | |
| 5 | Rated current | A | 4000 | 2500 | |
| 6 | Main circuit resistance | μΩ | <=150 | <=150 | |
| 7 | Temperature rise test current | A | 1.1Ir | 1.1Ir | |
| 8 | 1minRated power frequency 1min withstand voltage | Across open breaks | kV | 160+42 | 160+42 |
| To earth | kV | 160 | 160 | ||
| 9 | Rated lightning impulse withstand voltage (1.2/50μs) | Across open breaks | kV | 350+59 | 350+59 |
| To earth | kV | 350 | 350 | ||
| 10 | Rated short circuit breaking current | AC component effective value | kA | 31.5 | 31.5 |
| Time constant | ms | 45 | 45 | ||
| Breaking times | Times | >=12 | >=12 | ||
| Prime Minister's breaking coefficient | / | 1.5 | 1.5 | ||
Our Services
| 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 testing. |
| 3. | After sale service |
| a. | installation and commissioning, training the workers |
| b. | quick response within 12 hours any time |
| c. | provide 12 months guarantee period normally. |
FAQ
| 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 standard 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 warranty period? |
| A: | 12 months after transformer operation. |
| 6. Q: | Can u do installation and commission in 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. |
Our advantages:
Quality Assurance
--From the very beginning, VILLE ensures quality in every step to achieve the best quality.
Experience Sharing
--With more than 30 years' experience in power industry, VILLE brings you an optimized solution.
Global Service
--Wherever you are, VILLE global network will support and provide you with value.
Quick Response
--In response to your needs without delay, VILLE knows the value of your time.
Ville Electric Company will keep up with the century, the epoch,Sincerely look forward to your
cooperation and win-win!
Create brilliant!
