Name:
Grewin 12v 24v Toroidal Transformer Ring type Transformer 100va 200va
1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first:
The dimension of the toroidal transformers:
The Partial List of GW-B Series Toroidal Transformers with Cable and Mounting Holes:
A.
1. Installation:
Horizontal (non-conventional-type base plate), sunk, side type, and bridge.
2.Application:
Especially low-hum and low-dispersing construction
Low-level of induction
High-grade design casing possible
Statically shield winding and magnetical shield winding optional .
Be used widely such as audio equipment,communication,new energy areas,Electrical control,Cable TV network etc.
3.Equipment:
Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment as below:
. Automatic Winding Machine . Semi-automatic Winding Machine
. Toroidal Winding Machine . Insert Lamination Machine
. Wave Soldering Machine . Plastic Termal Ultraviolet Machine
. Domino Ink Jet Printing Machine Transformer Multitester for High & Low Frequency
Layer Insulation Withstand Voltage Tester
4.Certificate
The certificate of our transformer has CE CQC RoHs UL
B.Dual 110V Power Transformer:
For the international market request, these types of the GREWIN Transformers are designed into dual primaries for 110V. No matter what about your local voltage is 110V or 220V, you should use them. Below are the methods for using:
1. If you are using 110VAC(such as Taiwan, US), Please parallel the two primaries 110V. Please pay attention to the terminals of 110V must be short circuit, and the terminals of 0V must be short circuit.
2.If you are using 220VAC(such as Hongkong, China Mainland, Europe), Please series the two primaries. Please pay attention to one terminals of 0V must be short circuit with another terminals of 110V.
24v 12v Power Toroidal Transformer
(Click here for Customized Design And Interactive Design Service)
Single-phase toroidal transformers, power range
from 20VA to 5000VA. Designed and tested
according to EN61558. Suitable for installation
in electronically equipment.
Designed as a safety isolating transformer with
separate insulated windings and prepared for
class II equipment.
Short circuit and overload protected with
thermal fuse on primary side. Up to 50% less
weight than a similar conventional transformer.
Low magnetisation currents and no-load losses.
Applications:
Suitable as safety isolating transformer in
constructions where low weight, flexible
dimensions and optimum conditions between
dimensions are preferable.
Technical specifications
Input voltage: Customized
Frequency: 50-60Hz
Output voltage: Customized
According to: EN61558
Test/insulating voltage: 4kV AC RMS
Construction class: II
? Round shape with no air gaps
? Uniform primary and secondary windings locked in the magnetic field makes these transformers very quiet and efficient.
? Compact designing, efficiency, quiet and safer
? Smaller dimensions, lighter weight, and low stray magnetic fields
We specialize in manufacturing of above products as per customer specifications.
Toroidal Transformer I
Power Thermal Fuse Current Fuse Dimension (mm) Approval Mark
GWB25VA 135 ºC 250V 2A 250V T 2A 80*35 CE UL TUV CQC
GWB30VA 135 ºC 250V 2A 250V T 2A 83*35 CE UL TUV CQC
GWB40VA 135 ºC 250V 2A 250V T 2A 87*35 CE UL TUV CQC
GWB50VA 135 ºC 250V 2A 250V T 2A 93*34 CE UL TUV CQC
GWB60VA 135 ºC 250V 2A 250V T 2A 93*35 CE UL TUV CQC
GWB80VA 135 ºC 250V 2A 250V T 2A 102*35 CE UL TUV CQC
GWB105VA 135 ºC 250V 2A 250V T 2A 114*38 CE UL TUV CQC
GWB120VA 135 ºC 250V 2A 250V T 2A 113*41 CE UL TUV CQC
GWB140VA 135 ºC 250V 2A 250V T 2A 114*42 CE UL TUV CQC
GWB150VA 135 ºC 250V 2A 250V T 2A 117*43 CE UL TUV CQC
GWB160VA 135 ºC 250V 5A 250V T 5A 120*43 CE UL TUV CQC
GWB180VA 135 ºC 250V 5A 250V T 5A 125*42 CE UL TUV CQC
GWB200VA 135 ºC 250V 5A 250V T 5A 124*49 CE UL TUV CQC
GWB220VA 135 ºC 250V 5A 250V T 5A 127*50 CE UL TUV CQC
GWB240VA 135 ºC 250V 5A 250V T 5A 129*48 CE UL TUV CQC
GWB250VA 135 ºC 250V 5A 250V T 5A 130*52 CE UL TUV CQC
GWB260VA 135 ºC 250V 5A 250V T 5A 130*53 CE UL TUV CQC
GWB280VA 135 ºC 250V 5A 250V T 5A 138*45 CE UL TUV CQC
GWB300VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC
GWB320VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC
GWB340VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC
GWB360VA 135 ºC 250V 5A 250V T 10A 142*55 CE UL TUV CQC
GWB380VA 135 ºC 250V 5A 250V T 10A 146*54 CE UL TUV CQC
GWB400VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC
GWB420VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC
GWB440VA 135 ºC 250V 5A 250V T 10A 148*60 CE UL TUV CQC
GWB460VA 135 ºC 250V 5A 250V T 10A 149*64 CE UL TUV CQC
GWB480VA 135 ºC 250V 5A 250V T 10A 153*59 CE UL TUV CQC
GWB500VA 135 ºC 250V 5A 250V T 10A 155*62 CE UL TUV CQC
2. We have attained VDE,UL,CE,ISO9000 approval .we guarantee quality is the first.
Test process
1 .No-load test (included no-load voltage,no load current and no load loss)
2.iInductive voltage test
3. Load test (load voltage and temperature rise
4. Temperature rise test .
5.Insulated resistance
6.Hi-pot test
7.Leakage inductance test
8.DC resistance test
9.Surface inspection.
3.customized audio toroidal transformer and solar energy transformer Application:
220V 24V Toroidal Power Transformer
1). Application:
1. audio equipment
2. electric control
3. computer
4. solar device
5.telecommunications
6.high-end and middle-end vedio etc
2). Advantages:
1.High quality 100% copper core
2.a full range of toroidal transformer
3.Specially sales and technical services:5-10Years
4.With 14 years' producing history in transformer industry
5.our company have cooperated with many customers around the world and gained good reputation at home and abroad.
Model NO.: 50VA-5000VA GWB140321 Usage: Single-phase Transformer Frequency Characteristics: Power Frequency Shape of Core: Ring Brand: Grewin Toroidal Transformer Power: 50va-5000va: Universal Purpose Low No-Load Losses: Low Mechanical Hum Low Magnetic Leakage: High Efficiency Power Factor: 0.9 to 0.98: Encapsulated by Iron Shell: CE, RoHS, SGS, Cesi a Horizontal: Sunk, Side Type, and Bridge: Phase: Single Brand Name: Gw: Place of Origin: Tianjin, China (Mainland) Trademark: Grewin Toroidal Transformer Transport Package: Carton Specification: CE, RoHS, SGS, CESI and ISO9001 Origin: Tianjin HS Code: 85043190
Toroidal Transformers, by meeting today's requirements for smaller, more efficient, quieter and safer products, are being accepted in an increasing range of electronic and electrical equipment With toroidal transformer smaller dimensions, lighter weight and low stray magnetic fields , you can build more compact, lower cost quality products without sacrificing performance.
Toroidal has a round shape with no air gaps, and with the primary and secondary windings uniformly distributed around the core, locks in\" the magnetic field and makes the toroidal transformer very quiet and efficient. Toroidal transformers are built around a ring-shaped core, which, depending on operating frequency, is made from a long strip of silicon steel or permalloy wound into a coil, powdered iron, or ferrite core.
We make wide range of Toroids based on customer specifications. We provide center potted, plate mounted, clamp mounted and many other types of Toroids on customer specifications.
Features
High precision winding with Jovil and Ruff machines.
High quality M4 27 CRGO core used
Class H+ 200 Deg C Dual coat Enameled copper wires used
UL approved
Center potting provided for better cooling and fixing
Tailor made according to customer specs
TYCO, PANDUIT and MOLEX connectors and crimps used for UL approved models
Custom made parts are designed and developed to meet specific requirements.
Standards
We follow Indian and UL standards.
We can provide UL 5085-1 and 5085-2
We can make our product compatible with all international standards
Applications
Used medical and audio equipment
Used in voltage stabilizers
Used in electronics circuits
Used in power supply units
Used in variacs
Used in high precision equipment
Core: wound by high quality cold grain silicon, annealed by advanced vacuum annealing furnaces to improve electronic data, any dimension from customer are available
Wire: copper and aluminum are available weld aluminum enamel wire well to save your cost 15 to 35%, based on our know-how technology
Thermal protector: cutoff and switch are both available
Applications:
Electronic meter and apparatus
Cable tv and digital network
Electronic control
Medical equipment
New electric power supply
Decorative illumination system
Monitoring and control equipment
Installation: horizontal (non-conventional-type base plate), sunk, side type and bridge
Label info: certificate logo, basic electronic data, manufacturer's information also can be printed according to customer's request bar code is available based on customer's request
Capacity: 5va to 5kva
Phase: single
Input voltage: ac power with voltages of various countries
Output voltage: ac or customized
Frequency: 50 to 60hz
Power factor: 0.9 to 0.98
Efficiency: 75 to 98%
Voltage regulation: 12 to 3%
Output no-load loss: 0.5 to 10.0w
Temperature-rise: ¡¨¹85¡ãc
Insulation class: b: 130¡ãc e: 120¡ãc
Testing items: no-load test (no-load current, voltage and loss) load test (load voltage, temperature-rise) inductive voltage test dc resistance test safety test
With high efficiency, low inrush current and low noise characteristics which are popular in the market. We also make reactor inductor for inverter of solar power with low loss and low noise.
Power range 1000va to 30kva
Phase single/three phase
Input/output customized
Insulation class ul class b, f, h, n (optional
Isolation 4kv hi-pot
With high efficiency low inrush current and low temperature rise characteristics which are popular in the market. The transformer efficiency is up to 98%.
Power range:1000va to 30kva
Phase: single/three phase
Input/output:customized
Insulation class:ul class B, F, H, N
Isolation:4KV
Customized sizes are accept
Small, medium, and high quantity available
Wide frequency range
Please send universal purpose
Low no-load losses
Low mechanical hum
Low stray magnetic field
Low operating temperature
Low height
Easy to mount
Ranges from 10 to 12,000VA
Mainly designed for: Audio equipment ;Medical use ;Power sources ;Lighting purpose ;General purpose applications and security ;custom-made according to customer's specifications
We have various torodial power transformers available, from 5va to 20kva. We accept both oem and odm business, with no minimum order quantity required. Delivery schedule is 7-28 days, depending on quantity, and design time is included. The size (outer diameter) of our power transformers range from 50mm to 360mm, with height from 40mm to 215mm. Our products have obtained the certificates including iso9001, cesi, ce and rohs. And we are trying to get the certification of ul. Please don't hesitate to contact us for further information. We always welcome you at any time.
Low magnetic noise
High-efficiency
Excellent loading regulation
Easy assembly
Very low no load losses and magnetizing current
Half size and weight compared to EI transformer
Various input options: 100/110/117/120/220/230/240V, 50/60Hz
Dielectric strength: 3kV/1 minute
100% electric parameters test
Power range from 18 to 5,000VA available
According to customers' requirement
Class B insulation system
Optional single dual-primary
1. High efficiency and high performance price ratio
Toroidal core has good electromagnetic performance, like high saturation magnetic flux density, high primary inductance and large unit magnetizing power capacity, which improve the utilization ratio of the core and the winding window area, and reduce the number of turns and the direct current resistance, and also greatly improve the overload capacity and load efficiency of the toroidal transformer. Based on these conditions, the product design does not need to consider more power margin and heat dissipation conditions, and also effectively control the cost.
2. Excellent no-load characteristics
Toroidal core is wound with high permeability silicon steels, no gap on magnetic circuit, low magnetic resistance. Under the same power and magnetic field density, the no-load loss and exciting current of toroidal transformer are only 50%~70% of other transformers, which reduce the standby loss and improve the equipment operation reliability.
3. Low noise
There is no gap of toroidal core, the silicon steels are tightly winded, and after the vacuum impregnation with pressure it becomes a whole. Even in the middle, high magnetic frequency, it will not cause noise due to magnetic expansion. This is what the EI, dry-type and other lamination cores cannot match.
4. Low magnetic flux leakage, low leakage inductance
Toroidal core has a high saturation flux density, and the coil is uniformly distributed on the core, magnetic potential difference can effectively reduce the magnetic leakage. Normally, with the same transformer specifications, the magnetic flux leakage of toroidal transformer is only 1/10 of the EI one. The main coil is tightly and rationally layered winded, and then the leakage inductance of the primary and secondary coils can be better coupled to reduce the primary and secondary leakage inductance.
5. Safety of electrical structure
There is a certain thickness of stacked dielectric film between the core and primary coils, primary coil and electrostatic shielding, electrostatic shielding and secondary coil, secondary coil and the installation plate, which completely isolates the electrical gap and is safe without maintenance. Therefore, isolated toroidal transformers have been widely used in medical equipment transformers.
VOL-1500E auto ct winding machine is used for winding large sized toroidal shape Coils,is a new generation of winding equipment according to the power industry requirement.
Japan Mitsubishi PLC control High productive,human-computer interaction.
Stepping motor speed control for accurate winding,Winding speed can be specified using the front panel keys.
User friendly control console with touch screen.
High-tech shuttle for highest efficiency.
Microprocessor based controls, easy for program-setting and handling for operator.
Large memory capacity for storing steps of winding.
Password protection for administrative settings as well as operators setting.
Easy programming of multi-step, multi-speed settings.
Heavy machine weight design to avoid machine shaking while winding.
Automatically laying wire, change winding direction.
Realize dual-wire, multi-wire winding, forward and backward winding, preset 100 different kinds of wire data in machine.
Main technical parameters
Model VOL-1500E
Diameter rang of windable electromagnetic wire �?1.0~3.5mm
Min inner diameter of winded coils �?200mm
Max outer diameter of winded coils �?1500mm
Max height of winded coils 250mm
Max winding rotation speed 100rpm
Machine tool power 2.2kW
Max outline size of machine tool 1300*1000*1500mm
Color Blue,Calx,Customizable
