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SZ9-35 series Oil immersed non-excitation tap-changing transformer
Description of products

This kind of product is applied to power system of three-phase, 50Hz as well as 35kV and below, 
it is the main transformer equipment of medium and small-sized transformer substation, supplies power 
distribution, power and illumination for the industry and agriculture.
The company introduces in domestic and overseas advanced technique, adopts the latest material 
and optimizes design, which enables the product structure more reasonable, and greatly improves the 
product electric strength, mechanical strength and heat-sinking capability. S9 series product has 
passed the short-circuit test prepared by Wuhan High Voltage Research Institute and also the test 
prepared by National Center for Quality Supervision & Test of Transformer.
 

Structural Features

■ Core 
    Laminations of high quality cold-rolled silicon steel sheet orientation, multi-core all-helical ladder seams, no punching type, fastened with stainless steel pull plate 
And clamping epoxy glass strands belt. 
■ Coil 
    Manufacture of high quality oxygen-free copper wire or wrapped flat copper wire, using cylindrical coil, spiral, spiral improvement, continuous 
Style, type and other types tangled. 
■ Tank 
   Tank using a bucket or a hood type, cooling components using corrugated sheet or piece radiator and other components. 
    Transformers generally do not supply the car, but the bottom line with the national standard gauge welded base, user-friendly installation. 
■ Safety devices 
    In accordance with national standards and user requirements, the transformer can be configured: pressure release valve, gas relay, fast numbers thermometer, oil purifier, reservoir 
Oil tanks, oil sample valve and other safety devices.

Add:No. 310 Wei 17th Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China hotline: 0086-577-61673333  
? Zhejiang COTTOH Electric Co.,Ltd. All rights reserved.