Basic Info
Model NO.: GWEFD12 EFD15 EFD20etc GWRM4, RM5, RM6, RM8etc Usage: Single-phase Transformer Frequency Characteristics: High Frequency Shape of Core: Etd,RM Brand: Grewin Type: High Frequency Transformer Coil Number: High Magnetic Flux and Low Loss Magnetic Materials Indicative Power Capacity: UL Insulation System for Class B (130), F (155), H Trademark: Grewin High Frequency Transformer Transport Package: Export Standard Carton with Strong Pallet Specification: VDE, CE Origin: Tianjin HS Code: 85043190
Product Description
We have passed ISO9001:2015,CE,SGS approval and IEC report
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
About us:
1). Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ".
Grewin Mission: Growing together side by side,Mutual success hand in hand.
Production:
Ferrite Core High Frequency Current Transformer
2).Terms of Shipment:
Within 10 working days after received related prepayment or L/C.
3).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.
4).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
Basic Info
Model NO.: GWEI-28, EI-35, EI-41, EI-48, EI-57, EI-66 etc. Usage: Single-phase Transformer Frequency Characteristics: Low Frequency Shape of Core: EI Brand: Grewin Ei Low Frequency Transformer Type: Encapsulated Transformer Color: Yellow, White, Black, Brown, Red Primary: 115V Single or Dual Ui: Ui20, Ui39 Trademark: Grewin Ei Low Frequency Transformer Transport Package: Export Standard Carton with Strong Pallet Specification: VDE, ISO9001 Origin: China HS Code: 85043190
Product Description
1.Product Specification:
1). Models:
EI28, EI30, EI35, EI48, EI57, EI66, EI86, EI96, EI105, EI114, EI133, EI152, EI162 etc.
2). Maximum output: 1.2W, 2W, 12W, 20W, 35W, 40W, 50W, 90W, 180W, 200W, 400W, 600W, 850W, 1500W, 2400W, 2700W etc.
3). Input:100Vac, 110Vac, 115Vac, 120Vac, 220Vac, 230Vac, 240Vac etc.
4). Output:AC(0--380V); DC(0--50V)
2.Product Feature :
1). Easy to install.
2). Lower power consumption.
3). Little temperature rising.
4). High accuracy of output voltage.
5). Diemension and output leads can be customized.
6). Dielectronic Strength is high.
3.Application
1). Measuring instruments.
2).Communication prducts.
3). Medical instruments.
4). Audio & Video
5). Elevator
4.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
About us:
1.Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ".
Ei Low Frequency Power Inverter Transformer for Measuring Instruments
2.Terms of Shipment:
Within 10 working days after received related prepayment or L/C.
3.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.
4.Production
The following picture showed you about all finished transformer production line and package with export standard carton and strong pallets:
Ei Low Frequency Power Inverter Transformer for Measuring Instruments
Basic Info
Model NO.: GWCTT Usage: Single-phase Transformer Frequency Characteristics: 50-400Hz Shape of Core: PCB or Wire Brand: Grewin Shell Material: PBT or ABS Frequency: 50-400 Hz Operating Temperature: -25 to +55c Operating Voltage: 600VAC Isolation: 600V, Bil 10kv Full Wave Accuracy Class: Compliant ANSI Rated Input: 60-4000 Model Name: Instrument Current Transformer Dimension: 12-72mm Company Nature: Manufactory Trademark: grewin Transport Package: Export Standard Cartons with Strong Pallets Specification: CE ROHS Origin: China HS Code: 850450000
Shipping:
1. Products are shipped via UPS / DHL / EMS / HK EMS / FedEx / TNT and so on expresses (door to door).
2. We Provide Drop shipping Service.
3. 20 days around delivery upon receiving payment if the qty is lower than 1000PCS and it is not customized products.
4. In order to ensure you receive your order tax free upon
import, we declare lower value.
5. Shipping via EMS. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.
Payment:
1. We accept Western Union and T/T
2. 30% deposit and 70% before shipping
3. No payment collection. We only can deliver goods after
geting full payment.
Warranty:
1. We provide 1 year warranty.
2. If the product is defective, please notify us within 3 days of delivery.
3. All products must be returned on their original condition, in order to qualify for a refund or exchange of goods
Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard
technical parameter
Temperature -5 40
Relative humidity 80%
Rated Primary Current 5-5000A 5A,1A
Rated secondary current 5A 1A
Accuracy Class 0.05S
Allow long-term work under the rated current; More than120A across the core.
Precautions
The current of standard CT and tested CT must be the same in CT calibration.
Follow the given wiring diagram strictly.
Test whether the load box is accurate or not before calibrating the transformer.
Forbid secondary winding opening during the calibration.
Select demagnetization before calibration.The wiring diagram is shown in figure 5.
Short out the secondary winding before cutting off the power when the demagnetization is finished.
Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
We are one of the leading manufacturer of all types cts of any ratio. We manufacture both outdoor and indoor types. We manufacture both resin cast & oil cooled cts
