1.We have abtained IEC,VDE,UL,CE,ISO9000 approval .we guarantee quality is the first. 2.waterproof Transformer's Dimension Sheet: (Note:Rated 105VA-1000VA for devices 105VA-1000VA watts or less, GWET-105 means 105VA size ) 3.Waterproof outdoor toroidal Transformer's Spcification: 1).WORKING AND SAFETY PROTEETION Eiectrostatic Shield Magnetic Shield TemperatureProtection OverCurrent Protection 2).INSULATION Insulation resistance test(type test):Pri.~sec. 500V DC 100 MΩMIN. HI-POT TEST(100% test):Pass ourdielectric strength test, without any breakdown Pri.~sec. AC 3.8kV for 5 seconds (leakage current 5mAMAX) 3).TEMPERATURE RISE Ta=25ºCTest by resistance method At rated load PRI.& SEC. WINDINGS'TEMPERATURE RISE 75ºCMAX. 4).MAJOR MEASUREMENT FACILITIES: HI-POT TESTER: CJ2670 INSULATION-RESISTANCE METER: ZC-7 VOL TMETER: T19-V DC-RESISTANCE METER: QJ44 AMPEREMETER: T19/1-A 5). MAIN PARAMETERS: Input Voltage:AC 220V 230v 110v (Define the voltage) Output voltage:AC 12V / 24V (Define the voltage) Power range:105VA-1KVA 6) Waterproof toroidal Transformer's materials: * Annular core: Cold rolling directional silicon steel * Insulation protection: Mylar * Core Insulation: Polyester 7C * Primary/Secondary Winding: Enamelled copper wire * Terminal cannula: PVC canula * Termial uderlay: Polyester 19C * Temperature Protection: Thermal Switch * Pri.Insulation: Polyester 7C * Insulation protection: Mylar * Coating insulation: Polyester 5C * Lead: UL WIRE * Potted resin: Potted resin * Body: PP+GFRP 7)Standard conditions and components: * Transformer should meet "Short-circuit-proof safety isolating transformer (inherently or non-inherently) IEC 61558-2-6:09" * Thermal Switch 17AM 211 120 °C Sensata Technologies or equivalent (UL E15962) * Thermal Fuse A7-5A-F 5A/138 °C Aupo Electronics or equivalent (UL E140847) * Transformer is double insulated (Class II) with Insulation Class B 120°C * Insulation tests 500VDC 100M ohm min and 4kV for 5 seconds at 5mA max leakage current 4.Application: Grewin Toroidal Waterproof Transformer with IEC Garden light LED underwater lamp LED Ground light Outdoor power Supply Humidifier Swimming pool Round Enapsulated Transformer with wire leads ,power range: 25VA-6000VA Waterproof Encapsulated transformer Application: 1. Garden light 2. LED underwater lamp 3.LED Ground light 4.Outdoor power Supply 5.Audio sound field 6.Stage lighting 7.Outdoor lighting 8.Christmas Lights
We have passed ISO9001:2015,CE,SGS approval and IEC report 1.Technical parameters Power Input Voltage(V) Output Voltage(V) Dimension OD*H(mm) Weight (kg) GWB50VA 220V (230V) 12V 80*38 0.74 GWB100VA 220V (230V) 12V 95*45 1.25 GWB200VA 220V (230V) 12V 112*52 2.05 GWB250VA 220V (230V) 12V 118*54 3.36 GWB500VA 220V (230V) 12V 140*65 4.2 GWB1000VA 220V (230V) 12V 170*75 7.2 GWB1500VA 220V (230V) 12V 180*85 9.75 GWB2000VA 220V (230V) 12V 185*105 12 GWB3000VA 220V (230V) 12V 200*120 16.6 GWB5000VA 220V (230V) 12V 230*135 24 2. We have abtained 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 indutance test 8).DC resistance test 9).Surface inspection. 3.customized audio toroidal transformer and solar energy transformer Application: Grewin Electrical Supply Toroidal Transformer with ISO9001: 2015 1). Application: 1. audio equipment 2. electric control 3. computer 4.instrument 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 induatry 5.our company have cooperated with many customers around the world and gained good reputation at home and abroad. 3).Note The above-mentioned toroidal transformer is frequently-used, we can also manufacture the products by customer design. And the specification is for reference, if has the change further, please take the material object as the standard. 4).GREWIN'S Dimension : External diameter: 40mm-300mm, height :13mm-130mm, Efficiency: 75-98% we can design the appropriate products according to customers' requirments such as installation dimension, input and output voltage,power...etc.) 4.product procedure The following picture showed you about all finished toroidal transformer production line and package with export standard carton and strong pallets: Grewin Electrical Supply Toroidal Transformer with ISO9001: 2015
Basic Info Model NO.: 105VA 150VA 180VA 200VA 250VA 300VA 350VA 400VA Usage: LED Underwater Lamp, LED Ground Light Frequency Characteristics: Low Frequency Shape of Core: Ring Brand: Grewin Toroidal Transformer 100% Copper Wire Made: Toroidal Style ABS Fire Material: Plastic Cover High Performance Insulation: Epoxy Resin Anti-Corrosion: Waterproof Performance Outdoor Waterproof Transformer with Plug: Highly Energy Efficient Water-Safe Making IP Rating: IP64 IP66 IP67 Rating for Outdoor Use Application 1: LED Ground Light, Outdoor Power Supply Application 2: Humidifier, Swimming Pool, Garden Light Short-Circuit-Proof Safety: Isolating Transformer Primary/Secondary Winding: Enamelled Copper Wire Trademark: Grewin outdoor waterproof toroidal transformer Transport Package: Export Standard Carton or Customize Strong Pallet Specification: CE Origin: China 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
Used for television, electrical control system, charger inverter, electric apparatus, audio equipment etc.
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
Toroidal transformer 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. According to products
Toroidal transformer Customized
ranging from 30VA to 25KVA,used in lighting,audio and power
Toroidal transformer Ranging from 30VA to 25KVA,used in lighting,audio and power supply.Custom design welcomed.
Toroidal transformer Used for various electronic applications
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 weight:1.5kg height:48mm
Advantages of toroidal transformers 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. YW-1500E winding machine features: YW-1500E Large- sized toroidal shape coil CNC circular winding machine 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
toroidal transformer from 20va to 25KVA IN carton
Power range:1000va-6000va Phase:single/three phase Input/output:customized Insulation class:class e, b, f, h (optional) Isolation:3.75kv(hi-pot) Operating frequency:50/60hz Approval:ul.Ce.Rohs.Cqc According to the request by our customers
Power range:1000va-6000va 4.Low noise 5.Low loss 6.Light weight 7.High reliability 8.Flexible connection 9.Good insulation 10.Small size 11.Easy mounting 12. Approval:ul/ce/rohs/cqc
