Motor Drive Unit Type CMA9 of on load tap changer for transformer
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- Supplier: Ningbo Ville Electric Co. Ltd.
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Product Overview
Description
MOTOR DRIVE UNIT TYPE CMA9 of Transformer on-load tap changer
General
The motor drive CMA9 (fig.1, 2) serves for driving the tap changer type CV to selected operating position. It also can be used for some off-load tap changers. The motor drive housing contains all mechanical and electrical parts necessary for operating the tap changer from one operating position to an adjacent one, the motor drive action is initiated by a single control signal and completed without any possible interruption. Overrunning the end positions is prevented by double limits devices. Safety and monitoring devices are availble with easy operation. Auxiliary devices can be provided for various application requirement and retrofit project.
Note: The installation of motor drive, electrical connection and operation must be carried out by the trained personnel according to the operating instructions. To replace or change the motor drive without permission of our company is not recommended. Failing to do so may cause severe damage to tap changer and transformer.
During the period of installation of motor drive, electrical connection and operation, improper
operation may have influence on the operation of motor drive, on-load tap changer and transformer.
Main technical data
Note: The listed technical data only applies to standard design, there might be some differences with actual device, we reserve the right to make modification.
Working condition of motor drive unit:
1) Applied altitude shall not exceed 2000 meters.
2) The ambient temperature shall be 25~ 40 .
3) Vertical inclination of installation shall not exceed 2%.
4) Operation site should be free of dust,explosive or corrosive gases.
NOTICE TO USE AND ORDER
Customer and end-user should record the operation and inspection of the tap changer. In case of special
condition, please contact with us and give us your report for data collecting purposes that we can give you
possibly further recommendations for your next inspection.
After the OLTC sold out from the factory within 18 months, in case of any damage or malfunction of the
OLTC due to the manufacturing quality encountered by the customer or end-user under the regulations of
storage and application, we can give you inspection and repair work without charges.
Generally the provided cable lead for the indicator is 30M. Please specify your special requirement when
you give your order.
WARMLY WELCOME YOU TO GIVE US COMMENT AND SUGGESTION FOR OUR
PRODUCTS. THANK YOU FOR YOUR SUPPORT AND COORDINATION.
WE WOULD LIKE TO PROVIDE OUR CUSTOMER WITH HIGH QUALITY PRODUCT,
EXCELLENT SERVICE AND PREFERENTIAL PRICE. 
Company Information
Main product line: Tap changer and HV switchgear
Tap changer manufacturing with fullest vertical integration
Tap Changer Products Range On-Load Tap Changer:
* Conventional OLTC for transformer with voltage up to 765kV
* Vacuum OLTC for oil transformer with voltage up to 765kV
* Vacuum OLTC for dry transformer with voltage of 72.5kV
* Off-Circuit Tap Changer
* Application for the transformer with voltage up to 765kV
Reference Transformer: 375MVA/157kV OLTC: 3×CMDI 2400/72.5C-10193W
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 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. |
FAQ
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 |
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. |
Pls contact with us ,if you have any question:
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