This kind of switch applies to the single-phase combination oil-immersed transformer electrical power with rated voltage of 10KV-24KV, rated current of 30A-63A; the voltage-regulating mode are: central part, terminal point ncutral point, which canbe dircctly fixed on the tank cover of the transformer, exchange under the off-circuit condition.


Type WDTII Single phase-tap changer (delta connection)

- Used in mineral oil or silicon oil

- Rated voltage 10KV-24KV

- Rated current from 30A- 63A

- Tapping position:3-7

- Regulation 2.5% per position

2600 KVA Pad mounted Transformer
High Voltage: 24940 Delta,125kV BIL
Low Voltage: 415 Y/ 240,30 kVBIL
Taps: 2 Above,2 Below @2.5%
HVBushings:(6)25kV 200A Wells & Inserts (dead front loop fe
LV Bushings: (4)10-Hole Spades wl Supports

ZGS13-H American pre-installed box-type substation

31500-180000/230 combined type transformer technical parameter

Power Transformer 230-242kV on-load-tap-changing power transformer is made of high-quality silicon-steel sheets, and laminated by steps.
t is advantageous in low loss, low noise, low voltage partial discharge and high anti short-circuit capacity. The dynamical and thermal stability
of this transformer, of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets
processes and interior and exterior structure. The transformer tank used wave form shell, has very nice appearance, the core is with D shape
yoke and 45 angle seaming. The core and oil box are well fixed and well protected on moving.

Adopting advanced and strictly technology, the 110kV's transformer that we develops to produce index all
achieves the advanced standard of international by way of constantly exploring and make perfect. The product
possesses characteristics such as the low loss, low noise and low power in part and the resisted short circuit
ability is strong etc. The product breed is diversified and the model specifications complete.
The transformer product can be installed and use in outdoor or indoor, and it is very ideal equipment in the
distribution network in factory, rural area and city.

Application: Power
Phase: Three
Core: Core-type Transformer
Cooling Method: Oil-immersed Type Transformer
Winding Type: Multi-winding Transformer

Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
Phase: Three
Core: Core-type Transformer
Cooling Method: Oil-immersed Type Transformer
Winding Type: Two-winding Transformer
Usage: Power Transformer

Base on the advanced technology, 110kV transformer has been experienced and developed by Our company both on design and
manufacture. Combined with our rich experience, the reliability and performance of 110kV product is up to the international level, which
comes to "TIANAN feature" series product: Low losses, noise and partial discharge, stronger capability of withstanding short-circuit, high
impedance and so on. We have all kinds of products in different specification. 110kV voltage regulating transformer (three-phase three-
winding)has been approved by State Transformer Inspection and Measurement Center after passing all the tests (including abrupt short-
circuit test), which is first one in the same field in China.

The product can be mounted outdoor (or indoor), particularly for operation in humidity. It is ideal equipment in the large transmission and
distribution network at factory, urban and rural area.