S9-35kV Series Transformers

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1.Production introduction
The product conforms to the technical parameters and requirements of IEC60076 and China Standard GB1094 & GB/T6451, and a series of significant innovation is applied in aspects of material,design and structure.It has the features of high efficiency and low loss.It can save a lot of operation cost,and the social benefits are very significant.In conclusion,it is a nationally promoted new product and it is deeply favored by customers. Installation type:indoor/outdoor type Altitude:≤1000m Installation site:in places without corrosive gases and obvious dusts.

2.Applicable standards
IEC 60076 -1-2-3 2000 Power Transformer GB1094.1-2-1996 Power Transformer GB1094.3-5-2003 Power Transformer GB/T6451-1999 Technical parameters and requirements for three-phase oil-immersed power transformer.

3.Performance characteristics
1.The features of this product are high efficiency and low loss.It can save a lot of operation cost,and the social benefits are very significant.
2.The iron cores are made of the imported high-conduction magnetism,cold-roll,and grain-oriented silicon-steel sheets.The iron cores and windings adopt the vacuum drying and vacuum oil-filling processes,which make the internal moisture down to the very low level.
3.The conservator is hermetically sealed,which make the internal running oil to insolate with oxygen and moisture efficiently.
4.The above features guarantee the transformer does not need do replace the oil during the normal operation,greatly decrease the maintenance cost,and prolong the service life.

4.Main technical parameters of S9-M-50~2500/35 series of transformers

Rated capacity (kVA)Voltage combination(kV)Connecting group idNo-load lossess (W)Load-loss (W)(75˚C)Short circuit impedance (%)No-load current (%)Weight(kg)Overal dimension (mm)Gauge (mm)
High voltage (kV)Tapping (%)Low voltage (kV)
BodyOilGross weightLength x width x h

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Q:What are the specifications of the transformer capacity?
The optimum load rate of the transformer (ie, the load rate at the highest efficiency) is not in the rated state, but between 40% and 70%. The load factor is too high and the loss increases obviously. On the other hand, Margin is small, a slight increase in load, you need to replace the large capacity box change, frequent capacity is bound to increase investment, affecting power supply.
Q:What do I need to consider or what formula I can use to calculate Z (Impedance) in a Transformer?
It's pretty difficult to calculate the impedances (there's more than one) entirely from the transformer's design data. It's easier and more usual to decide on an equivalent circuit (there are plenty available depending on how well you want to model the transformer) and then to determine the parameters by a mix of calculation and measurement. A pretty basic equivalent circuit which refers all impedances to the primary side, has the primary terminals connected first by Xm and Rc in parallel (the magnetising reactance and core loss resistance) and then by a third parallel branch containg a series connection of leakage reactance Xl, winding resistance Rw and an ideal transformer of turns ratio Np/Ns. Xm is best obtained from an open circuit test but could be calculated as the inductance of the primary winding. For the latter you'd need to know core dimensions, number of winding turns and the magnetising characteristic of the core iron. If you have conductor sizes and conductivities you can calculate the winding resistance Rw, referring the secondary part to the primary by multiplying it by (Np/Ns)². You can deduce Rc from the losses measured on open circuit at nominal voltage and Rw from dc resistance measurements on the windings. If you know the specific hysteresis and eddy current losses of the core material, you can also have a good stab at calculating Rc. The leakage reactance is quite difficult to calculate from first principles - even designers usually resort to some empirical factors. Basically it's determined from the short circiut test which is at nominal secondary current. The ratio of primary volts to secondary surrent (referred of course) on secondary short circuit will get you close to Xl - you can adjust for Rw which can be determined from the losses on short circuit (core losses are absent here!) or by the two methods indicated above. It's normally Xl that's referred to as the transformer reactance and together with Rc and Rw, the impedance.
Q:Transformer voltage ratio and current ratio.
High voltage side voltage / low voltage = low voltage current / high side current = variable ratio
Q:doesn't the working of a transformer violate the ohm's law ?
Transformers don't need electricity to run!
Q:Which transformers belong to special transformers
Transformers are generally used for AC voltage conversion if used for other purposes such as changing the frequency of the power supply, rectifying the power supply of the equipment, the power supply of the welding equipment, the electric power of the furnace or the voltage transformer, the current transformer.
Q:transformer - install in electrical box only?
your line voltage leads should be inside and connections to low volt outside,but neither side needs to be exposed to the weather or an open area,if someone touches the leads evern though its 24 volts it still hurts,and it doesnt need to get wet
Q:Step Down Voltage Transformer / Regulator?
a regulator
Q:How long does it take to restart the transformer?
(4) power failure operation, the first load side of the switch, after the power side of the switch (multi-side power from low to high stop); first pull the transformer side of the knife, after pulling the bus side of the switch. Power supply operation is reversed. (5) into the backup transformer, the device should be based on the actual location and instructions to determine the load has been taken in order to make the operation of the transformer power failure. Diagonal and 3/2 wires on the transformer, although the transformer has been out of power, but the transformer's heavy gas and differential protection action can still cause its ring side of the switch trip. Should be based on the actual situation and the site of the gas protection to change the signal location or retreat gas out. (6) station transformer does not allow long-term side by side. Can be used to cut low-pressure low-pressure side of the cutting machine, with high-pressure knife cut off the station with a transformer.
Q:about the Transformers Movie?
i'm really not surebut i love watching the preview over and overi can't wait for this movie!!!
Q:How the transformers arcs work and end?
I don't know

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