Manufacturer 400VA Control Transformer ,Isolation Good Quality Transformer

Manufacturer 400VA Control Transformer ,Isolation Good Quality Transformer

USD $38.84 - $39.2 /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:
RBK-400
Usage:
Power
Phase:
Single
Coil Structure:
Other, E type

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

400VA Control Transformer      Model: RBK-400 

 Manufacturer 400VA Control Transformer ,Isolation Good Quality Transformer

Product Overview

Selection of Toroidal Transformer

Toroidal 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 400VA Control Transformer ,Isolation Good Quality Transformer

Advantages of Toroidal Transformer:

 

1. A toroidal 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 toroidal transformer fits into a smaller space, which allows chassis plates and enclosures to be smaller with less material used.

 

How to find VA for Transformers

 

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

 

3. Add the separate VA ratings for a 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

 

  • Capacity.............................................................................400VA
  • Frequency..........................................................................50/60Hz
  • Voltage Combination........................................................Pls. see selection form.
  • Winding Material...............................................................100% Copper
  • Terminal Block Connection..............................................Provided
  • Metallic Bracket Mounting................................................Provided
  • Standards...................................................VDE0550, IEC204-1, IEC61588, EC439
  • Sample Service..................................................................Pay to Provide
  • Quality Assurance.............................................................24 months
  • Item Condition....................................................................Brand-New
Selection Form

 

ItemCapacityVoltage Combination

Case

Qty.

Model(VA)Primary (V)/Secondary (V)(Pcs)
RBK-5050

440/220;240/24;220/24;

220-380/110-60-48-24,

380/220-110

24
RBK-10010024
RBK-15015016
RBK-20020012
RBK-2502506
RBK-3003006
RBK-4004004
RBK-5005004
RBK-7007001
RBK-100010001
RBK-150015001
RBK-200025001

 Note: 

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

Dimension

 Manufacturer 400VA Control Transformer ,Isolation Good Quality Transformer

 

Manufacturer 400VA Control Transformer ,Isolation Good Quality Transformer

Company Information

 Manufacturer 400VA Control Transformer ,Isolation Good Quality TransformerManufacturer 400VA Control Transformer ,Isolation Good Quality TransformerManufacturer 400VA Control Transformer ,Isolation Good Quality TransformerManufacturer 400VA Control Transformer ,Isolation Good Quality TransformerManufacturer 400VA Control Transformer ,Isolation Good Quality TransformerManufacturer 400VA Control Transformer ,Isolation Good Quality 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

You May Like

New Products

Recommended Products

View More View Less

Find Similar Products By Category

Electrical Equipment & Supplies > Transformers
Categories
Hi~