370MVA/535kV main transformer power plant

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
1 pc
Supply Capability:
1 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:


Quick Details

Place of Origin: HeBeiBrand Name:


Model Number:






Coil Structure:


Coil Number:

2 Winding

Capacity: Rated Voltage:


Connection Symbol:

YNd11 Dyn11 YNyn0d11


Cover type or Bell type


MR or ABB or SMS

Packaging & Delivery

Packaging Detail:Mainbody --naked Disassembled parts -- crate
Delivery Detail:3 months



1. CESI certificate
2. High short-circuit withstand
3. Low loss, PD and noise
4. CTQC certificate
5. No leakage




The application of the 370MVA/535kV main transformer power plant.can significantly improve the economy of the OLTC substation, and matches well with the transmission capacity of OLTC lines, which has wide prospect of application. Because of its large capacity and large volume, the whole transportation weight with nitrogen is about 470-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for the 370MVA/535kV main transformer power plant. In order to make the products applicable to any OLTC substation in our country, the state grid of corporation of China set the "A study of easy-transport large capacity OLTC Transformer” as a key scientific research projects, and entrusted BTW to carry out the research.

During the process of research and development, BTW adopted the advanced design technology and modular design, the transformer can be transported disassembly and with advantages of compact core and winding body, less transportation weight and low transportation cost, effectively solves the need of OLTC construction in the transportation restricted areas. By using the most advanced 3D magnetic field calculation software, BTW performed detailed analysis and calculation for the magnetic flux leakage and eddy current loss of the transformer coil, iron core and oil tank steel structures. Besides, by using of the advanced electric field calculation software, BTW performed detailed analysis and calculation of main longitudinal insulation, and mastered the arrangement of the main longitudinal insulation of large capacity OLTCtransformer and the control of distribution of winding magnetic flux leakage. All of which make the products with low loss, low noise, small volume, strong anti short circuit ability, no local overheating and other significant advantages, and guarantee the long-term safe and stable operation.

The world's first on-site assembled large capacity OLTC Transformer’s right at the first time once again filled the gap in the field of OLTC transformer research after Chinese transformer industry overcame the difficulty of integral transport of the 370MVA/535kV main transformer power plant, which marks BTW has fully occupied the world transformer industry technical peak. The successful development of the product filled the gaps in the domestic technology and met the urgent need of OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:transformer windings?
Assuming that the transformer is designed for a primary voltage of 35 or more, then you can simply multiply the applied primary voltage (up to the design limit) by the turns ratio and this will give you the output voltage. In this case: output voltage 35 x 4500/355 444.
Q:Will the 250KVA, 500KVA, 630KVA Van transformer size,
Box transformer inside the configuration is not the same, the size will be different, which factory production size is not the same
Q:What is the principle of the conversion of the transformer? How to restore the secondary side to the primary side?
1. The principle of the return is the balance of the magnetic potential before and after the countdown. The various energy relations should remain unchanged. 2. Potential and voltage of the count: the transformer once the number of turns W1, the number of turns on the secondary side W2, W1 / W2 = k     There is a return after: E2 '= k * E2                               U2 '= k * U2
Q:How much excess power do transformers draw?
No-load losses are primarily due to the so-called iron losses, i.e, hysterisis and eddy-current losses, and to a smaller extent, I-square-R losses. They vary quite a bit, but you can use a ballpark estimate of 5% to 15% of your transformer rating. Estimate between 5W to 10W of losses for your 65W transformer.
Q:What does an isolated transformer output on a microphone splitter do?
Microphone Splitter Box
Q:Does the production transformer require 3C certification? Does the country have any specific requirements?
The so-called 3C certification "China Compulsory Certification" Is China's mandatory product certification referred to. If your company's products can be sold publicly, without the need for 3C certification, it does not require mandatory certification.
Q:1.Transformers are normally used to step up or step down alternating voltage or current. May dc also be used t?
1.strictly NO.DC cannot be used at all to step up and step down using transformer if you read the working of transformer,it works on the principle of electromagnetic induction. i.e. it depends on change of flux with time. it can only happen in ac voltages not in dc ones because in dc the volatge is fixed but in ac it changes with time and flux and current are directly proportional. 2. 2.1)it is step down transformer. so number of turns in primaryno. of turns in secondary NpNs 4.8/12000/Ns Ns2000/4.8 Ns416.6777 but no of turns needs to be an integer so Ns417 (round off) 2.2)Ip/IsNs/Np IpIs*Ns/Np 15*2000/417 71.94A 3) 415/Vs36/1 Vs11.53V 4) Yes. such transfomers are called pulse transformers.
Q:who loves transformers??????
I love transformers
Q:Does anyone know what the movie was without a name on the transformer previews?
Yes. okorder
Q:What is the difference between transformers and inverters?
The inverter is a DC power supply into AC power, and the transformer is a kind of electromagnetic induction principle to achieve the electrical conversion of electrical equipment, it can be a voltage, current AC power into the same frequency of another voltage, current Of AC power. Simply put, the inverter is an electronic device that converts low voltage (12 or 24 volts) of DC into 220 volts. Because we are usually 220 volts AC rectifier into DC to use, and the role of the inverter in contrast, hence the name. We are in a "mobile" era, mobile office, mobile communications, mobile leisure and entertainment. In the mobile state, people not only need to be supplied by the battery or battery low-voltage direct current, but also need our daily environment indispensable 220 volts AC, the inverter can meet our needs. Transformer is a kind of application of electromagnetic induction principle to achieve electrical energy conversion equipment, it can put a voltage, current AC power into the same frequency of another voltage, current AC power. The role of the transformer is to change the voltage. Can be issued by the power station to rise to high voltage, in order to reduce the loss in the transmission, to facilitate long-distance transmission of electricity, you can also place the electricity, the high voltage will be reduced to the voltage, to the user. Therefore, the transformer in the grid is in a very important position, is to ensure safe, reliable, economic operation and people's production and life of the key equipment.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range