Grewin Electrical Supply Toroidal Transformer

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

Transformers,Distribution and Power Transformer,Varivolt
Safety Transformers
Diesel Generators
Industrial Panels
Stabilizers
Energy Saver
Industrial Panels

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