The single-phase pole-mounted distribution transformers are specifically designed for the decentralization distribution network of servicing residential overhead distribution loads ot town ana countryside.
They are also suitable for light and diversified power applications. These transformers are designed for the application conditions normally encountered on electric utility power distribution systems.
Offers 2 basic transformer types and two kinds of metal core types Conventional type and Complete Self Protect type, and for the transformer core
Two types of materials are available: C.R.G.O. wound core and amorphous metal core.
Transformer working for medium frequency induction furnace, electric arc furnace, continuous casting machine, rolling mill steel plant.
The S9, S10, S11 series of 20kV and 35kV three-phase oil-immersed rectifier transformers produced by our company meet the requirements of CE, UL, CSA, ROUSH, GB1094 "Power Transformer" and GB / T6451-2008 "Three-Phase Oil Immersed Power Transformer technical parameters and requirements "standard. The core is made of high-quality cold-rolled silicon steel sheet, and the coil is made of high-quality oxygen-free copper, which is beautiful in appearance and safe in operation. Widely used in steel mills, urban and rural industrial and agricultural power grids.
Main functions and features:
High reliability, advanced performance level and reasonable economic indicators.
The iron core adopts step-shaped three-level joints, and the surface is painted with cured paint to reduce loss and noise.
New winding structure, reasonable oil channel design, and new insulation structure to improve mechanical strength and short circuit resistance.
The fuel tank has various forms, beautiful and generous.
220kV, 110kV and 66kV low loss series transformers; products with reliable performance, low partial discharge, low loss, low noise, high reliability, and strong resistance to sudden short circuit, its excellent performance has won the majority of users and related Experts highly praise.
Partial discharge: at 1.5 times the rated voltage, the apparent discharge of the product is less than 80pC;
Noise: Product noise of 63MVA and below is below 58dB (AN);
Loss: No-load loss is about 30% lower than the IEC standard;
Reliability: All in-service products have no damage accidents and oil leakage;
Short-circuit resistance: SFZ11-50000 / 132 has passed the short-term ability test of the Netherlands KEMA and the National Transformer Quality Supervision and Inspection Center laboratory. Passed CE, UL, CSA, ROSH certification
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Transformer working for medium frequency induction furnace, electric arc furnace, continuous casting machine, rolling mill steel plant.
220kV, 110kV and 66kV low loss series transformers; products with reliable performance, low partial discharge, low loss, low noise, high reliability, and strong resistance to sudden short circuit, its excellent performance has won the majority of users and related Experts highly praise.
Partial discharge: at 1.5 times the rated voltage, the apparent discharge of the product is less than 80pC;
Noise: Product noise of 63MVA and below is below 58dB (AN);
Loss: No-load loss is about 30% lower than the IEC standard;
Reliability: All in-service products have no damage accidents and oil leakage;
Short-circuit resistance: SFZ11-50000 / 132 has passed the short-term ability test of the Netherlands KEMA and the National Transformer Quality Supervision and Inspection Center laboratory. Passed CE, UL, CSA, ROSH certification
Coil:
A
All coils are made of 100% oxygen-free copper, and high-voltage coils are tangled. Continuous structure, in order to improve the distribution characteristics under impulse voltage, to obtain a more uniform electric field distribution, the bracing pads are rounded to improve the high reliability of insulation. A
Iron core:
The core material is high-quality cold-rolled silicon steel sheet with high magnetic grain orientation, and adopts advanced German Georg automatic shearing line to control the burr of the cutting mouth to be less than 0.02 mm.
The silicon steel sheet adopts the technology of not stacking the iron yoke. The joint of the silicon steel sheet is a 45 �° full oblique stepped joint. After the iron chip is stacked, the overall pressure and epoxy glue are used to make the iron core three-pillar two yoke become a strong , Flat, high vertical accuracy, effectively improve the no-load performance, while reducing noise.
Between the iron core column and the inner coil, the iron core column is supported by a brace plate, the iron yoke is tensioned by a glass ribbon impregnated with epoxy resin, and the lower iron yoke and the lower fuel tank are topped by a back pressure nail bolt. In addition, the upper iron yoke and the upper fuel tank are fixed in three places, so the body can withstand the bumps during transportation without displacement in the fuel tank.
Condition New
Frequency 0-50Hz, 100-200Hz, 200-400Hz
Tensile Strength 125-150Mpa, 175-200Mpa, 75-100Mpa
Features Easy To Install, Four Times Stronger, Superior Finish
Warrenty 5yrs
Automation Grade Automatic
Production Power 100-250kw, 250-500kw, 50-100kw, 500-750kw
Application Industrial Use
Condition New
Frequency 50hz, 60hz
Tensile Strength 0-25Mpa, 125-150Mpa, 175-200Mpa
Features Easy To Install, Four Times Stronger, Superior Finish
-SMD IFT coils for TV receivers and AM and FM radios
-Variable inductor and coils with wide range of inductance
-Designed for application in different types of circuits
-IFT coils with internal capacitors
-SMD IFT coils for radio receivers and AM and FM radios
-IFT variable coils for wireless communication system and remotecontrol toy/equipment
-IFT adjustable coils with wide range of inductance
-Designed for application in different types of circuits
-IFT coils with internal capacitors
-EC, EE.EI and PQ type high frequency switch transformer EP type magnet shielding switch transformer
-RM type communication filter, aux power transformer
-ET, FT type linearity G (jar shape) switch transformer
-DR (I) type transformer T (ring) iron power core, DC filter inductorRM series: RM-4, 5, 6, 8, 10, 12, 14
ISO UL Certification,
Welcome Custom
Common mode choke
Electric choke coil
Two ring core spider web coil
Features:
Vertical base-mounted
Low cost and high current
Closed magnetic circuit for lowest EMI
Original manufacturer
ISO 9001:2008
With UL qualification
Keeps 4â?° disqualification rate
3-5pcs free samples
Short lead time
100% test before shipping
International standard specification
Professional packing
300K per month
Conform to CE, RoHS, FCC
OEM/ODM accepted
Applications:
Copying machine, display monitor, ADSL modem, gaming machine, color TV, video camera, air conditioner, refrigerator, laundry machine, microwave oven and car electronics
Ef type high frequency transformer
-smd ift coils for tv receivers and am and fm radios
-variable inductor and coils with wide range of inductance
-designed for application in different types of circuits
-ift coils with internal capacitors
-smd ift coils for radio receivers and am and fm radios
-ift variable coils for wireless communication system and remotecontrol toy/equipment
-ift adjustable coils with wide range of inductance
-designed for application in different types of circuits
-ift coils with internal capacitors
-ec, ee.Ei and pq type high frequency switch transformer ep type magnet shielding switch transformer
-rm type communication filter, aux power transformer
-et, ft type linearity g (jar shape) switch transformer
-dr (i) type transformer t (ring) iron power core, dc filter inductorrm series: rm-4, 5, 6, 8, 10, 12, 14
Iso ul certification,
Welcome custom
Company with ul qualification
Original manufacturer
Iso 9001:2008
3-5pcs free samples
Short lead time
100% test before shipping
International standard specification
Professional packing
300k per month
Conform to ce, rohs, fcc
Oem/odm accepted
Our capability:
-we can design, manufacture, testing various kinds of transformers up to 5000kva according to iec standards, ansi standards, bs standards, en61558 standards and technical specifications from client.
-we have exported our transformers to usa over $700, 000 every year.
Our major products:
-oil immersed distribution transformers up to 5000kva.
-dry type transformers up to 5000kva.
-isolation transformers: three phase from 100va to 5000kva and single phase from 25va to 500kva.
-auto transformers: three phase from 100va to 5000kva and single phase from 25va to 500kva.
-medical transformers up to 1600kva.
-toroidal transformers up to 100kva.
-auto voltage regulator(voltage stabilizer) up to 5000kva.
-eps, ups transformers.
-rectifier transformers.
-control transformers.
-reactor is included:
Parallel, serial reactor. Filter reactor. Starting reactor. Dc reactor. High frequency resonant inductance.
The insulation non-encapsulated dry-type power transformer is approved by America technology. With the advantages of safety, reliability, environmental friendliness, energy saving, fire and explosion protection, humidity and pollution resistance, strong overload capability, small volume and simple maintenance, and main performance indexes superior to domestic standards such as advanced design, reasonable structure and beautiful appearance, the product is a brand new transformer value-added scheme and is a new-generation energy-saving, safe, green and environmentally-friendly high-tech product!
Tianjin Grewin Technology Co.,ltd. Clamp-on Flexible Rogowski coil current transformer' are designed for easy installed in tight spaces and without the need for dismantling the primary busbar or cables.
1. Features:
Flexible and light weights_
Easy & quick installation in tight spaces
No danger from open-circuited secondary
No core saturation or damage if overloaded
excellent linearity
Multi- size are available
2. Applications:
Power quality monitoring
Power meters
Smart logger
Energy sub-meters
Distributed measurement systems
3.Note: we-Grewin Manufacture can produce current transformer,split core CT,clamp on sensors, toroidal CT, minature CT, Flexible Rogowski coil with excellent performance. We have recieved IEC,ROHS,CE standard.
We have passed ISO9001:2015,CE,SGS approval and IEC report
PQ type Transformer Parameters
Brand Name; GREWIN Transformer Core structure;
Laminated
Coil number; Autotransformer
Place of Origin; China Coil Material; ferrite Coil structure; toroidal
Usage; High Frequency Model : PQ Phase; single
Application; High-frequency switching power supply and High-frequency inverter power transformer. PBX
Deliver time; Within 15 working days Package; Customized standard cartons or export standard carton with strong pallets
ATTENTION; YOU CAN CUSTOMIZED ALL SERIERS ACCORDING TO YOUR REQUERMENT
1).Features:
Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm
structure,can fine-tune the inductance, etc., are widely used in fax
machines, PBX.
2). Applicable frequency range: 20 to 100kHz :
Operating frequency: higher than 200kHz
High magnetic flux and low loss magnetic materials
With low leakage inductance and high efficiency .
3).Applications:
PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments.
UL insulation system for Class B (130), F (155), H (180)
4). Can make other customized Ferrite transformers:
Power range: core type using N67 grade material
500: ETD54, ETD59 and E65
5)Advantage:
1.UL, CUL, CE, ISO9001:2015
2.We offer custom-made transformers, OEM and ODM are welcome
3.We deliver the quality you expect at consistently competitive prices
4.Transformer quality lifetime:10 Years.
5.Specialty Sales service:5 -10 Years
6.Transformers Test: 100% test before the shipment
1).Features:
Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm
structure,can fine-tune the inductance, etc., are widely used in fax
machines, PBX.
2). Applicable frequency range: 20 to 100kHz :
Operating frequency: higher than 200kHz
High magnetic flux and low loss magnetic materials
With low leakage inductance and high efficiency .
3).Applications:
PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments.
UL insulation system for Class B (130), F (155), H (180)
4). Can make other customized Ferrite transformers:
Power range: core type using N67 grade material
500: ETD54, ETD59 and E65
5)Advantage:
1.UL, CUL, CE, ISO9001:2008
2.We offer custom-made transformers, OEM and ODM are welcome
3.We deliver the quality you expect at consistently competitive prices
4.Transformer quality lifetime:10 Years.
5.Specialty Sales service:5 -10 Years
6.Transformers Test: 100% test before the shipment
1).Terms of Shipment:
Within 10 working days after received related prepayment or L/C.
2).Payment terms:
(1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before
delivery.
(2). By irrevocable L/C at sight, to be issued immediately against confirmed order.
(3). Payment by T/T, if order amount is less than USD 20,000.
3).Flow chart of trading activities:
NO
Step
Days need
1
Request for quotation
1 day
2
Making quotations
1 day
3
Offer and counter offer
3 days
4
Sending and receiving samples
3-10 days
5
Sample confirmation
3 days
6
Placing a firm order
1 day
7
Paying and receiving the down payment
1-4 day
8
Factory production & Quality inspection
15-20 days
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
Tianjin Grewin Technology Co.,ltd. Clamp-on Flexible Rogowski coil current transformer' are designed for easy installed in tight spaces and without the need for dismantling the primary busbar or cables.
1. Features:
Flexible and light weights_
Easy & quick installation in tight spaces
No danger from open-circuited secondary
No core saturation or damage if overloaded
excellent linearity
Multi- size are available
2. Applications:
Power quality monitoring
Power meters
Smart logger
Energy sub-meters
Distributed measurement systems
3.Note: we-Grewin Manufacture can produce current transformer,split core CT,clamp on sensors, toroidal CT, minature CT, Flexible Rogowski coil with excellent performance. We have recieved IEC,ROHS,CE standard.
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
We have passed ISO9001:2015,CE,SGS approval and IEC report
Remark:
A. D refers to the volume of a corresponding transformer, which will be replaced with a digit. For the transformer with a single winding, the corresponding max. volume can be reached; for the transformer with two or more windings, the corresponding volume will be reduced properly.
B. Being a tendency of future pin transformer, it is applide with our best self-made toroidal core (Poâ?¤0.9W/Kg) in the result of High Efficiency, Low Power Loss and Low Temperature-rise to be Green, Energy-saving & Environment-friendly.
C. Attributed to our Patent Technology, excluding the pins distribution mentioned above, the pins distribution can be freely adjusted by following customer's advice.
D. Nice Appearance, Small Size, Moisture Proof & Mould Prevention.
E. Pins Quantity can be reduced or increased based on your requirement.
Minature Transformers:
The dimension of the Control Transformer Usage &Toroidal Coil Structure step-up auto-transformator 380V to 200V
The Partial List of GW-B Series Toroidal Transformers with Cable and Mounting Holes:
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.Warning
Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially dangerous 'shorted-turn'.
5.Certificate
We have abtained CE CQC RoHs UL ISO9001:2015,SGS and IEC 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.
Application:
1). audio equipment
2). electric control
3). computer
4).instrument
5).telecommunications
6).high-end and middle-end vedio etc
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