Part Ⅰ: 330kV Power Transformer Overview

330kV series oil-immersed power transformers adopt advanced calculation software to accurately calculate the ampere-turn balance, various stresses, temperature rise, and insulation distance; accurately analyze the electromagnetic field, magnetic flux leakage, and wave processes; use plane and three-dimensional dynamic model simulation design to ensure reliable product performance, The structure is reasonable.

330kV power transformers are mainly made of iron core and windings, which are placed in the oil tank that filled with insulating oil. It is mainly used for power plant, power transmission and distribution station as the equipment of power transmission.

330kV 3-phase 2-winding Power Transformer
Product Attributes
Model No.
Application	Power
Coil	Core-type Transformer
Frequency	50/60Hz
Phase	Three
Cooling Method	Oil-immersed Type Transformer
Capacity range:	150000kVA-400000kVA
Operating Ambient Temperature	+40 °C--30 °C
Operating Altitude	≤1000m
Operating Max Wind Speed	≤35m/s
Earthquake acceleration	horizontal acceleration ≤0.3g
	vertica I acceleration ≤0.15g
Standard	IEC 60076-1:2000, IEC 60076-2:1993, IEC 60076-3:2000, IEC 60076-5:2006, IEC 60137:2003; ANSI, IEEE, AS, etc.
Supply Ability & Additional Information
Packaging	Seaworthy Packing
Transportation	Ocean
Supply Ability	High
HS Code	85042100
Payment Type	L/C,T/T
Delivery Time	60 Days
Place of Origin	China
Port	China Sea Port
Incoterm	FOB, CFR, CIF
Packaging & Delivery
Selling Units:	Set/Sets
Package Type:	Seaworthy Packing

Part Ⅱ: Product Features

1. High Reliability:

Short circuit strength: through the analysis of leakage magnetic field of transformer, the electromagnetic force can be well controlled in the structure design, and together with equipment and suitable materials, the requirement of short circuit strength can be sufficiently satisfied. Our design method has been testified through short circuit test on products at different voltage levels, which also testifies that our products have enough strength against short circuit.

2. Low power loss and low operation cost

The transformer has relatively low losses through the optimized design, the detailed analysis of leakage magnetic field and the losses distribution. The maintenance cost has been lowered through the Customer-oriented design.

3. Customer-oriented Design

Based on the 3D design method to simulate feeders, operation filed and terminal box arrangement are in full consideration of operating conveniences, which meets the requirements on cost lowering and customization, as well.

Part Ⅲ: Structural Feature

1. Iron Core

Iron core with fixed clamps optimizes the design so as to ensure mechanical strength and to reduce leakage losses.

2. Winding

① HV winding adopts entanglement or inner screened continuous type with phase insulation structure to ensure insulating strength.

② MV/LV windings adopt high strength or adhibit-transpostion conductor, reinforced cooling to reduce the temperature rise and enhance capability of short circuit withstand.

3. Active-parts Assembly

① Cold pressing ensures cleanness of the body active parts and the reliability of leads.

② Adoption of whole assembled phase insulation so as to reduce the assembly time and effectively guarantee the dimension and shape of the insulation structure.

③ HV lead adopts specially molded insulation parts for protection which effectively guarantees its insulating strength and reduces partial discharge.

4. Oil Tank

Adopting of welding automatic submerged arc-welding and ultrasonic of fluorescence leakage test to guarantee leakage -free The surface coating is strictly controlled.

5. Assembly and Routine Test

After assembly, strict pre-delivery test according to standard, with exquisite testing technique and equipments to provide high quality and reliable product.

Part Ⅳ: Product Main Parameter

330kV Two-winding Oil-immersed Transformer
Rated Capacity (kVA)	Rated Voltage and Tapping Range		Vector Group	Impedance Voltage %	No Load Current %	No Load Losses kW	On Load Losses kW
	HV	LV
150000	363±2×2.5%	10.5~20	YNd11	14~15	0.3	90	400
400000					0.15	185	820

330kV Three-winding Oil-immersed Transformer
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	Setp-up set			Impedance Voltage (%)
	HV	MV	LV		No Load Current %	No Load Losses kW	On Load Losses kW	HV-MV	HV-LV	MV-LV
150000	330±8×1.25%	110~121	10.5~35	YNyn0d11	0.3	95	440	14~15	24~26	7~9
240000					0.25	135	625
360000					0.15	185	850
150000				YNa0d11	0.3	50	335	11~12	34~36	22~24
240000					0.25	70	480
360000					0.15	95	645

Part Ⅳ: Structural Diagram

Part Ⅴ: Quality Warranty

Part Ⅵ: Application

Part Ⅶ: Packaging and Transportation

Before packing the transformer, make a packing plan, and carry out packing according to the design scheme and plan when packing. The packing list corresponds to the materials in the box one to one. Pack the box in two copies, one in the packing box and the other nailed outside the packing box. Important parts and spare parts are packed in wooden boxes, and the box numbers are set in order.

The transformer is transported in bare installation, and the fuel tank is emptied before transport. It is tied to a transport vehicle by a wire rope, and the transport speed does not exceed 15km/h.

The terminal is guaranteed to have large-scale transformer lifting equipment, and the lashing is firm after loading to ensure safe and reliable transportation.

Part Ⅷ: Factory Tour

Part Ⅸ: Service Guarantee

1. To provide all technical information and drawings as per contract promptly. QRE is oblidged to invite client, if neccessory, technical design review.

2. To carry out spot technical service as per client’s schedule, offer guideness for installation and commis-sioning according to technical information and drawings.

3. For relevant auxiliary equipment procured by customers, QRE will provide related technical information to meet requirement of equipment interface.

4. To execute stipulations in MOU or agreemaent signed by seller and buyer strictly.

5. To train staff from client for equipment installation, commissioning, application, maintenance as stipulated in the contract.

6. To reinforce pre-sales, mid-sales, after-sales service, to carry out "24-hour service", "service in advance", "overall process service", "lifelong service" in our manufacturing, installation, commissioining and main-tance.

7. To meet spare parts’ requirement by customers at any time.

Part Ⅹ: Contact Us

Looking for ideal 330kV 3-phase 2-winding Power Transformer Manufacturer & supplier ? We have a wide selection at goods prices to help you get creative. All the330kV 3-phase 2-winding Power Transformer are quality guaranteed. If you have any question, please feel free to contact us.

http://www.hydgetpower.com/