12 transformer

JBK5 transformer customized transformer
JBK5 transformer customized transformer
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Min Order Qty: 1 pc
Supply Capability: 3000 pc/month
servo  transformer   electric transformer
servo transformer electric transformer
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Min Order Qty: 1 pc
Supply Capability: 3000 pc/month
JBK1 transformer   high voltage transformer
JBK1 transformer high voltage transformer
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Min Order Qty: 1 pc
Supply Capability: 5000 pc/month
JBK3 transformer   high voltage transformer
JBK3 transformer high voltage transformer
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Min Order Qty: 1 pc
Supply Capability: 5000 pc/month
Prefabricated (American) Compact Transformer Substation(Double Transformer)
Dry-Type Power Transformer
Dry-Type Power Transformer
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Supply Capability: 1000sets set/month
S9 Series Distribution Transformer
S9 Series Distribution Transformer
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Min Order Qty: -
Supply Capability: 1000sets set/month
Switch  Power  Supply  Transformer
Switch Power Supply Transformer
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Min Order Qty: 1000 unit
Supply Capability: 50000 unit/month
jbk high voltage transformer power transformer
jbk high voltage transformer power transformer
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Min Order Qty: 1 unit
Supply Capability: 500 unit/month
JBK5 power transformer high voltage transformer manufacture
JBK5 power transformer high voltage transformer manufacture
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Min Order Qty: 10 pc
Supply Capability: 10000 pc/month
Oil immersed transformer
Oil immersed transformer
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Supply Capability: -
Aluminum  Strip for Transformer
Aluminum Strip for Transformer
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Min Order Qty: -
Supply Capability: 500 Tons kg/month
DKS Series Grounding Transformer
DKS Series Grounding Transformer
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Supply Capability: -
Dry Transformer 31500-180000kVA
Dry Transformer 31500-180000kVA
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Combined type transformer substation
Combined type transformer substation
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Supply Capability: -
JDCF-110,132,220,230 Voltage Transformer
JDCF-110,132,220,230 Voltage Transformer
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Supply Capability: 1000sets set/month
CNBM Ductile iron BS5163 gate valve 12‘’
CNBM Ductile iron BS5163 gate valve 12‘’
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Supply Capability: -
25MVA/20kV auxiliary transformer for Iran
25MVA/20kV auxiliary transformer for Iran
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
Prefabricated Transformer Substation
Prefabricated Transformer Substation
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Supply Capability: -
Oil immersed Power Transformer 110kV
Oil immersed Power Transformer 110kV
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Supply Capability: -
Walkie Stacker- CDDRD10/12
Walkie Stacker- CDDRD10/12
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Supply Capability: -
370MVA/236kV main transformer power plant
370MVA/236kV main transformer power plant
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
FANGYUAN spiral conveyor LSY273-12
FANGYUAN spiral conveyor LSY273-12
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Min Order Qty: -
Supply Capability: 10 unit/month
Knapsack Sprayer   NS-12
Knapsack Sprayer NS-12
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Min Order Qty: 210 unit
Supply Capability: 50000 unit/month
63MVA/220KV startup/standby transformer for factory
63MVA/220KV startup/standby transformer for factory
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
Aluminum honeycomb panel-12
Aluminum honeycomb panel-12
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Min Order Qty: -
Supply Capability: -
Toroidal transformer   Electronics Companent
Toroidal transformer Electronics Companent
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Min Order Qty: 1 pc
Supply Capability: 3000 pc/month
Aluminium Edging Strip for Transformer Winding
Aluminium Edging Strip for Transformer Winding
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Min Order Qty: 2.5
Supply Capability: 5000 m.t./month
300MVA/ 230kV export America phase-shifting transformer
300MVA/ 230kV export America phase-shifting transformer
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
40MVA/20kV split auxiliary transformer for factory
40MVA/20kV split auxiliary transformer for factory
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
Low Frequency Electronic Transformer
Low Frequency Electronic Transformer
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Min Order Qty: 800 Pieces pc
Supply Capability: 10000 Pieces per Month pc/month
Low  Frequency  EI  In-line  Transformer
Low Frequency EI In-line Transformer
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Min Order Qty: 1000 unit
Supply Capability: 50000 unit/month
270MVA/525kV single phase transformer power plant
270MVA/525kV single phase transformer power plant
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
KPH-12 Electrode Holder
KPH-12 Electrode Holder
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Min Order Qty: 500 Pieces pc
Supply Capability: 100000 Pieces per Month pc/month
250MVA/220kV standby transformer for factory
250MVA/220kV standby transformer for factory
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Min Order Qty: 1 pc
Supply Capability: 1 pc/month
Aluminum Strip for Transformer or Ceiling
Aluminum Strip for Transformer or Ceiling
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Min Order Qty: 5 m.t.
Supply Capability: 5000 m.t./month

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FAQ

Transformer alone as an audio amplifier ?
Technically No. The transformer will not amplify a signal, however it can be used to make sure you use any signal you actually do have to your best advantage. A transformer is generally used to achieve an impedance match between the signal source and load. For instance if you were to connect an 8 ohm speaker directly to a 1 kilohm signal source, most of the available signal would be dissipated in the source resistance and less than 1% of the signal would produce movement in the speaker. If however a 1k to 8 ohm transformer is used to match the source to the load,up to just under 50% of the signal will make it into useful energy in the speaker. This is a substantial gain in performance of the overall system but is not actually amplification.s
why are power transformers rated by KVA(kilovolt- ampere) instead of kilowatts?
well from what my teacher told us kilowatts is reserved for real average power. As you know inductors and capacitors have no average power which means that the power in those elements are just being recycled over and over again. for sinusoidal steady state this power is imaginary (mathematically) and is giving the kVA. It's just terminology.s
doorbell transformer problems?
Yes it could be a dangerous situation. A better arrangement would be to mount the transformer on the outside of the panel box through a knockout. Better yet, mount it on a separate octagon box on the wall near the panel. Most doorbell transformers have an option to mount through a knockout on a box so that the 110 volt wires are inside the box, which is then covered with a blank plate. The doorbell wires then connect to the transformer outside of the box so there is no danger of high voltage getting into the low voltage circuit.s
Can the transformer be replaced with a component?
If you say the transformer is a small power frequency transformer, then you can use switching power supply instead. If the substation with high-power transformers, there is no thing to replace.s
why we need to know VARS and pf of transformer?
Power Factor is very important , u know (apparent power)^2(active power)^2+(reactive power)^2 and also Iactive powerIIapparent powerI*cos(phi) phi is the angle between the voltage and current in transformer , and power factor is cos(phi) active power can transfer through the transformer(and also can transfer to mechanical power and torque in motors) but the transformer get the reactive power and send it back to the input power line,reactive power get back to heat of wires and voltage drop in power lines. so we like that reactive power be minimum (reactive powerapparent power*sin(phi)) or pho----0 then the cos(phi)----1 most of motors have power factor about 0.8-0.95 that is very good the value pf0.182 means the angle between the voltage and current vector is acos(0.182)79.5 at open test u have a very bad transformer it just transfer %18.2 of the apparent powers
why cant a transformer work in dc?
Because the voltage induced in the secondary winding depends on the *rate of change* of current in the primary winding: E M * di/dt. induced voltage mutual inductance * rate of change of current in other winding.s
The difference between the reflection impedance of the ideal transformer and the hollow core transformer is different.
The ideal transformer reflection impedance is the equivalent impedance of the load resistance equivalent to both ends of the primary coil, directly across the primary coil at both ends, in parallel with the primary circuit, and the nature of the reflection impedance and load impedance of the same nature.s
440 primary 220 secondary transformer question clarification?
The only real problem you have to worry about is the capacity of the primary winding to supply enough current for your needs without burning up. That information should be on the transformer. Otherwise, transformers work both ways!s

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