Manufacturer 800VA Toroidal Transformer ,Power Transformer .                        
                                                Quality Choice

Manufacturer 800VA Toroidal Transformer ,Power Transformer . Quality Choice

USD $28.64 - $30.8 /Piece

Min.Order:1 Piece

Supply Ability:
100000 Piece / Pieces per Month
Port:
Ningbo or Shanghai
Payment Terms:
T/T Credit Card

Quick Details View All >

Place of Origin:
Zhejiang, China
Brand Name:
YOMIN
Model Number:
DH-800
Usage:
Power
Phase:
Single
Coil Structure:
Toroidal

Yueqing Yomin Electric Co., Ltd.

Business Type: Manufacturer,Trading Company
Wenzhou Zhejiang China
Main Products: High and low voltage electrical appliance ,Energy meter ,Switching power supply ,Cam Switch ,Fuse

Product Details

Manufacturer 800VA isolating transformer power transformer

Model: DH-800

Manufacturer 800VA Toroidal Transformer ,Power Transformer .

 

Product Overview

Selection of Isolating Transformer

Isolating Transformers offer many advantages over standard laminated power

 

transformers. Toroidals provide quiet, efficient operation with very low stray magnetic

 

fields. Their small size and weight support a package that is easy to design into any

 

application.

 

Manufacturer 800VA Toroidal Transformer ,Power Transformer .

 

Advantages of Isolating Transformer:

1.     A isolating transformer weighs about half as much as conventional transformer with the

 

same capacity and heat rise. The main materials used in transformer are copper and steel,

 

both of which are getting scarcer with cost increases as a consequence.

 

2.     No impregnation is needed to keep the laminates quiet so this potential environmental

 

hazard is avoided.

 

3.     The isolating transformer fits into a smaller space, which allows chassis plates and

 

enclosures to be smaller with less material used.

 

How to find VA for Isolating Transformers

Volt amps (VA) is the effective power rating for a transformer. In the perfect isolating

 

transformer, the voltage and current (combined) applied at the primary will exactly equal the

 

voltage and current (combined) on the secondary(s).

 

Efficiency is measure of a isolating transformer’s ability to delivery the input power to the

 

load. Efficiency is expressed as a percent by:

 

% = ( PO / PI ) X 100           (Where: PO = Output power, PI = Input power, % = Efficiency)

 

VA Calculation

1.Read the isolating transformer’s secondary winding rating (printed or tagged on the

 

transformer case). This should give a rating such as 5V, 500mA.

 

Multiply the voltage times the current to receive the VA.

 

Example: 5V times 500mA (or 0.5A) equals 2.5VA

 

2.Convert the secondary winding VA value to the primary winding VA rating as the equation

 

VA (Primary) equals VA (Secondary) or VA (p) = VA(s)

 

For example of a 2.5VA secondary, if the primary voltage is 120V the current will be A (p) =

 

VA(s) / V(p). Giving A(p) = 2.5 / 120 = 0.020833 (roughly 21mA).

 

This is the calculation for a single input winding/single output winding isolating transformer.

 

3.Add the separate VA ratings for a isolating transformer with multiple secondary windings.

 

For secondary winding 1 = 5VA at 500mA

 

Secondary winding 2 = 24V at 100mA

 

Total Secondary VA = ( 5 X 0.5 ) + ( 24 X 0.1 ) = 4.9VA

 

Primary VA will still equal the total secondary VA.

Specifications

Manufacturer 800VA Toroidal Transformer ,Power Transformer .

 

  • Capacity..............................................................................800VA
  • Frequency...........................................................................50/60Hz
  • Max. Temperature.............................................................60℃
  • Temperature Class...........................................................Class B (130℃)
  • Voltage Combination........................................................Pls. see selection form.
  • Winding Material................................................................100% Copper
  • Mounting Metal Disk.........................................................Provided
  • Rubber Gasket...................................................................Provided
  • Standards.................................................VDE0550, IEC204-1, IEC61588, EC439
  • Sample Service..................................................................Pay to Provide
  • Quality Assurance.............................................................24 months
  • Item Condition....................................................................Brand-New
Selection Form
ItemCapacityStatic CurrentEfficiencyVoltage Combination

Case

Qty.

Model(VA)(mA)(%)Primary (V)/Secondary (V)(Pcs)
DH-50501090230/24;220/24;230/36; 220/36;440/230;230/12; 130-240/15-240;115/2424
DH-100100159224
DH-150150209324
DH-200200309424
DH-250250359418
DH-300300409418
DH-350350459518
DH-400400509518
DH-450450559518
DH-500500559518
DH-550550559518
DH-600600559518
DH-700700609512
DH-800800659512
DH-10001000759512

Note: 

Please mention the voltage Combination when ordering. Other else multiple volage combination upon request.

Dimension

 Manufacturer 800VA Toroidal Transformer ,Power Transformer .

 

Manufacturer 800VA Toroidal Transformer ,Power Transformer .

Company Information

 Manufacturer 800VA Toroidal Transformer ,Power Transformer .Manufacturer 800VA Toroidal Transformer ,Power Transformer .Manufacturer 800VA Toroidal Transformer ,Power Transformer .Manufacturer 800VA Toroidal Transformer ,Power Transformer .Manufacturer 800VA Toroidal Transformer ,Power Transformer .Manufacturer 800VA Toroidal Transformer ,Power Transformer .

Contact Supplier

Ms. Linda General Manager Chat Now
Telephone
0086-577-61616259
Mobile
0086-13968745210
Fax
0086-577-61616256
Address
Qiaoqian Industrial Area, Liushi Town, Yueqing City Zhejiang

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