40MVA/110KV generator startup/standby transformer

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Place of Origin: HeBeiBrand Name:


Model Number:




Phase: Coil Structure:


Coil Number:

3 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 40MVA/110KV generator startup/standby transformer, 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 200-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of the 40MVA/110KV generator startup/standby transformer. 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 OLTC transformer 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 OLTCTransformer’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 40MVA/110KV generator startup/standby transformer, 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 UHV construction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.


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Q:what feeds a transformer?
Hi pal! A transformer is a device which converts electrical energy. just remember that. now we know energy is E VI.t right? Now a transformer has two ends. one is the primary winding and the other is the secondary winding. winding means wound wires ;ole am inductance wire. the two of them are connected by a metallic core through which magnetic flux flows linking the two windings. Since energy is constant Voltage of primary x Current in primary Voltage in secondary x Current is secondary Now, since the number of turns of the 2 winding are different, thus the flux linkages are different i.e. N x phi so induced emf by faraday's law is different. so if secondary number of turns is suppose 10 and primary is 1000 then if voltage in primary is 1000V secondary is 10V this is how it steps down. so the transformer is FED by a high or low voltage source via busbars. this is as briefly as i can explain without boring ya!! :)
Q:Two Transformers Parallel Operation
The total capacity of the two transformers in parallel is not a simple addition of the capacity of the two transformers. Even if the rated capacity of the two transformers is exactly the same, the impedance of the two transformers can not be exactly the same due to the existence of design / manufacturing errors. Based on the principle of the parallel circuit, the transformer with a small impedance will share a larger current, A transformer has been overloaded and another transformer is not yet fully loaded. Can be based on the measured value of two transformer impedance (on the nameplate). Calculate the transformer with a small impedance to reach full load, the load of another transformer, the sum of the two is the total capacity of the two transformers in parallel. In fact, the transformer capacity selection is usually about 25% greater than the actual load, so the reality is usually not a full load, while the other has been a serious overload situation.
Q:transformer electronic question?
You can tell roughly how much power it can handle by the size and weight. Old style power adapters (transformer types heavy), like you plug into the wall, provide 5-10 watts or so and weigh 4-10 ounces. If it is really small it would be a signal level transformer and be in the milliwatt range. The voltage is somewhat irrelevant except to the output. Most transformers will take hundreds of volts before the insulation breaks down. What you can do is find a current limited 10VAC (or so) power source and place it on one side of the transformer. Measure the other side and you will discover the ratio. 30VAC would be a 1:3, 3.3VAC would also be 1:3 but your source would be hooked to the large winding. If you don't know much about electronics, stay away from hooking anything to a wall outlet, the current there is a couple hundred times a lethal dose. Keep your mistakes to letting the smoke out a a few low cost devices. A small wall outlet transformer is a safe way to experiment as the line voltage is isolated and all the shock you can get is limited to the secondary or output of the transformer.
Q:Can someone give me a pinout for an Audio Transformer?
give pinout audio transformer
Q:What is transformer saturation?
The flux density in a transformer core is limited in the case of iron alloys to an absolute maximum at about 1.5tesla(15000gauss).(for most small transformers 10,000 gauss is the norm) So the design criterion is based on the formula:- V(rms) (4.44*B*N*F*A)/ 10^8 Where B is the peak flux density(in gauss), N is the total of conductor turns on the core,f is frequency,A is core cross section in square cm. If this is adhered to the no load current in the primary coil will be limited to about 0.5 amperes per Kg of core.If the core peak flux exceeds this only slightly the no load current climbs very rapidly because the iron reluctance cannot grow and so the air flux must grow hugely(meaning that the primary current rises rapidly until it melts or the fuse melts)
Q:315KVA transformer high-voltage side need to use the specifications of the high-voltage cable
You are not very specific, according to the general distribution transformer, then the high side of 10kV, low voltage side of the 400V; high voltage side of the actual current is small, the voltage is high, so the main choice of cable attention to insulation, pressure and other properties, specifications suggest that you choose YJV-1 * 25 (10KV) cable, 25 mm square cable. (High-voltage cable diameter is not too small)
Q:Three-phase three-winding transformer high-pressure medium-pressure low pressure is what it means
Three-phase three-winding transformer high voltage, medium pressure, low voltage that the three sets of winding (rated) voltage level. Three windings have three windings per phase. When one winding is connected to AC power, the other two windings induce different potentials, which are used for loads of 2 different voltage levels. Power plants and substations are usually three different levels of voltage, so the three-winding transformer in the power system is widely used. Each phase of the high and low voltage winding are set on the same core column. In order to use a reasonable insulation, usually the high-voltage winding on the outermost layer, the pressure and low-voltage winding on the inner layer.
Q:Tube power transformer help?
Get get right of entry to to an impedence meter and degree what the transformer relatively is (impedience clever). you will discover small transformers with an identical turns ratio and not additionally be near to what you like. If there's a marking on the transformer , you're waiting to seem it up. the different element is that utilising tubes at very low voltages would positioned you into very non linear tiers of operation. the entire thought of utilising a triode or a tetrode amp is for a tube sound and to get low distortion or controled distortion. beginning at 5 to ten% distortion isn't great. i assume you're speaking approximately utilising something like a 3V4 or in all possibility between the tubes designed for listening to aids. Neither replace into designed for finished constancy. Microphonics are a controversy. there are a number of integrated amplifiers that are very low distortion and could no longer require an output transformer.
Q:Transformer is the transmission of electrical equipment
Transformer is the power of the transmission of electrical equipment, it is the primary energy transformer through the electromagnetic coupling, to the secondary side, we need to become the voltage and current, the frequency does not change the power supply.
Q:Does anyone know what the movie was without a name on the transformer previews?
Yes. okorder

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