Motor Drive Unit Type Cma9 of on-Load Tap Changer Transformer on Load Switch

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: CMA9
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Max Rated Current: 3AC/N
• Connection Method: Y, D
• Rated Voltage: 380V
• Original Nameplate: Oltc and Motor Drive Unit
• Transport Package: Wooden Cases
• Specification: IEC CE, ISO
• Trademark: VILLE
• Origin: Ningbo
• HS Code: 85
• Production Capacity: 50000 Sets

Product Description

MOTOR DRIVE UNIT TYPE CMA9 of 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.

 

Our Best Service For You

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 For You

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.

Thanks for choosing VILLE as your reliable partner and
please trust both of us will create a brilliant future!