Transformer for Amplifier Transformer for Amplifier

POWER: 1300W
SIZE: 172 (OD) x 52 (ID) x 76(H) mm
Primary and Secondary voltage: customized
Insulation systems: 105/130/155/180 degree are available.
Design to meet UL/CSA/TUV/VDE/CE and other safety requirements.
ROHS 2.0 Directive and (SVHC/REACH) are conformity.
Application field: PA Amplifier,Guita Amplifier, Stage Amplifier, Tube Amplifier, Karaoke Amplifier

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Key Specifications

The transformer is widely use in the Stage amplifier, KTV, PA and other home theater amplifier. Amplifier requests the transformer is with high efficiency, small loss, Low interference resistance, small magnetic leakage, No static current sound, sufficient power for subwoofer, low temperature rise and other requirements. Toroidal transformer is the good choose for Amplifier. For Toroidal, the magnetic circuit closure is good and it can take full advantage of the magnetic properties of silicon steel, to reduce the magnetic leakage of the core.



Power Range: 50VA to 3000VA

Phase: Single or 3 Phase

Input/Output: Customized

Insulation: up to 4kV (Hi-pot)

Sample Lead Time: 3~5 days
 Production Lead Time:3 Weeks  (Urgent order can be negotiated)
 Quantity:No MOQ Require

 

Specification Table

Power Regulation Temperature
Rise
Efficiency Size(mm)   Power Regulation Temperature
Rise
Efficiency Size(mm)
(VA) (%) (℃) (%) OD H   (VA) (%) (℃) (%) OD H
50VA 12.5% 45 88% 89 36   900VA 4.6% 65 95% 152 75
75VA 12.5% 55 88% 89 42   950VA 4.5% 65 95% 162 71
100VA 11.0% 55 89% 100 38   1000VA 4.5% 65 95% 162 72
150VA 9.0% 55 90.5% 106 43   1100VA 4.4% 70 95.0% 162 75
200VA 8.0% 55 92.0% 114 50   1200VA 4.3% 70 95.2% 163 78
250VA 7.6% 55 92.5% 116 50   1300VA 4.2% 70 95.3% 172 76
300VA 7.0% 55 93.0% 122 56   1400VA 4.1% 70 95.4% 172 79
350VA 6.5% 60 93.3% 123 57   1500VA 4.0% 70 95.5% 172 84
400VA 5.8% 60 93.5% 131 57   1600VA 4.0% 75 95.5% 180 88
450VA 5.6% 60 93.7% 121 58   1700VA 4.0% 75 95.5% 180 90
500VA 5.5% 60 94.0% 132 63   1800VA 3.9% 75 95.5% 180 93
550VA 5.4% 60 94.0% 132 68   1900VA 3.9% 75 95.5% 181 94
600VA 5.2% 65 94.2% 142 64   2000VA 3.8% 75 95.5% 181 100
650VA 5.0% 65 94.3% 142 69   2300VA 3.5% 75 96.0% 195 93
700VA 4.8% 65 94.5% 142 72   2500VA 3.5% 75 96.2% 196 94
750VA 4.7% 65 94.5% 142 75   2600VA 3.4% 75 96.3% 196 99
800VA 4.7% 65 94.5% 152 70   2900VA 3.3% 75 96.4% 206 105
850VA 4.6% 65 94.6% 152 72   3000VA 3.2% 75 96.4% 206 106

 

NFC Transformer provides both standard and custom designs with following features.

  • 105/130/155/180 degree insulation systems are available.
  • Design to meet UL/CSA/TUV/VDE/CE and other appointed safety agency requirements.
  • Auto transformer and insulated transformer can be design according to requirements.
  • 100/110/115/120/208/220/230/240/277/380/415/440V or specified primaries are optional.
  • Secondary voltage: 3.6V/6.3V/12V/24V/36V/100V/110V/120V/200V/220V/240V/380V or customer specified.
  • Terminations and mounting means can be customized.
  • ROHS 2.0 Directive (EU) 2015/863 amending Annex II to Directive 2011/65/EU and Substance of very high concern (SVHC) under Regulation (EC) NO.1907/2006 of REACH are conformity.  

Process

Toroidal Transformer Main Materials (IQC process)

All the material is inspected strictly with ISO9001:2015 quality program.

Core: appearance inspection and core loss test.

Copper wire: pinhole test and coat of adhesion test

Toroidal Transformer Process

  • Core is from 0.23mm thick silicon steel Japanese material 23Z100.
  • Core is protected from 4 layer polyester films with 0.075mm thick (50% overlap 2 layers). The brand of polyester films is DUPONT.
  • Primary winding wire is polyesterimid enameled, have 130/155/180degress for choice.
  • Primary lead wire from type UL1617 double insulation for 600V voltage and 105 degree
  • Insulation between primary and secondary is overlap 67% 2 layers , 4 layers polyester films or 50% 4 layers, , 8 layers polyester films. It is subjects to different safety agency requirements. The brand of polyester films is DUPONT.
  • Secondary winding wire is polyesterimid enameled, have 130/155/180degress for choice.
  • Secondary lead wire from type UL1015 for 600V voltage and 105 degree
  • Outer insulation is overlap 50% 1 layers, 2 layers polyester films. The brand of polyester films is DUPONT.

 

Transformer Testing Items

  • Exciting current & core loss: 100% test
  • DC Resistance: 100% test
  • Layer insulation: 100% test
  • Loading test: 100% test
  • Hi-pot test: 100% test, but the time is only approx 10seconds for the production-run.
  • Aging test: Spot check, 10% of product quantity
 

 

 

 

 

Assembly Means

Two mounting way for choice.

         1. Rubber + Metal disk  Assembly

 


       2. Epoxy in the centre
 

 

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