Product Description
1.Product pictures
2.Features:
| Low cost |
| More than 50 standard sizes |
| Non-symmetrical mounting pattern |
| Toroidal Silicon steel and Nickel Alloy available |
3.Applications
| For applications that require exceptional accuracy with minimal phase angle error |
| Applications would include Voltage,power and energy monitoring devices |
4.Specifications
| Exterior Material | PBT Resin UL flame retardant rating 94-V0 |
| Interior Insulation | Epoxy Encapsulated |
| Isolation Voltage | 2500 Vrms for 1 minute |
| Dielectric Resistance | 1000 M Ohms @ 500 Vdc |
| Surge Withstand | 5000V(1.2/50μs standard shock wave)optional |
| Rated Load Resistance | 100K Ohms |
| Operating Temperature | -25 to +55ºC,-40 to +85ºCoptional |
| Frequency | 50 to 400 Hz |
| Accuracy Class | defined in IEC 60044-1 Part 1 Voltage Transformers Class 0.1 0.2 |
| Certification | RoHS Compliant CE Approved |
5.Typical Impedance Dependence of Phase and Amplitude Errors (Test temperature 25º C)
6.outline drawings
7.Performances
| Part Number | Rated Input Current (A) | Turn Ratio | Frequency ( Hz ) | Secondary Burden Resistance (Ohms) | Accuracy Class | Outline Dimensions (mm) |
| GWTA1111 | 5~30 | 1000:1 2000:1 2500:1 | 50 to 400 | ≤200 | 0.1 0.2 0.5 | ID-L-W-H 7.0-22.0-18.0-23.0 |
| GWTA1311 | 5~80 | ≤800 | 0.1 0.2 0.5 | ID-L-W-H 8.0-25.3-18.0-30.0 | ||
| GWTA1411 | 5~80 | ≤800 | 0.1 0.2 0.5 | ID-L-W-H 9.0-31.5-20.5-33.5 | ||
| GWTA21A11 | 5~50 | 1000:1 2000:1 2500:1 3000:1 | 50 to 400 | ≤200 | 0.1 0.2 0.5 | ID-L-W-H 6.9-25.0-11.6-26.5 |
| GWTA21B11 | 5~50 | ≤200 | 0.1 0.2 0.5 | ID-L-W-H 6.7-23.5-11.5-25.0 | ||
| GWTA21CB11 | 5~15 | 1000:1 2000:1 | 50 to 400 | ≤50 | 0.2 0.5 | ID-L-W-H 3.6-18.0-10.0-19.0 |
| GWTA21CE11 | ≤50 | ID-L-W-H 5.0-17.0-9.2-16.7 | ||||
| GWTA21CD11 | ≤50 | ID-L-W-H 5.0-18.0-10.0-19.0 | ||||
| GWTA21C11 | 1000:1 2000:1 2500:1 | ≤50 | ID-L-W-H 4.5-18.0-10.0-20.0 | |||
| GWTA21CA11 | ≤300 | ID-L-W-H 4.5-19.0-12.5-19.0 | ||||
| GWTA21E11 | 5~20 | ≤200 | 0.1 0.2 0.5 | ID-L-W-H 5-21-13.5-21.5 | ||
| GWTA21F11 | 5~30 | 1000:1 2000:1 2500:1 3000:1 | ≤200 | 0.2 0.5 | ID-L-W-H 6.7-23.9-12-25 | |
| GWTA22B11 | 5~80 | 1000:1 1500:1 2000:1 2500:1 3000:1 | 50 to 400 | ≤800 | 0.1 0.2 0.5 | ID-L-W-H 8.7-26-17.5-27.5 |
| GWTA22D11 | 5~100 | ≤1000 | 0.1 0.2 0.5 | ID-L-W-H 9.0-29.5-19.0-30 | ||
| GWTA22E11 | 5~100 | ≤1000 | 0.1 0.2 0.5 | ID-L-W-H 12.8-36.7-14.2-38.5 | ||
| GWTA2311 | 5~20 | 1000:1 2000:1 2500:1 | 50 to 400 | ≤200 | 0.1 0.2 | ID-L-W-H 5.0-18.8-17.8-19.5 |
| GWTA23B11 | 5~80 | 1000:1 2000:1 2500:1 3000:1 5000:1 | ≤100 | 0.1 0.2 0.5 | ID-L-W-H 6.0-25.0-21.5-26.0 | |
| GWTA23A11 | 5~100 | ≤1000 | 0.1 0.2 0.5 | ID-L-W-H 6.0-34.0-22.0-36.0 | ||
| GWTA32B11 | 5~20 | 1000:1 2000:1 2500:1 | 50 to 400 | ≤100 | 0.1 0.2 | ID-L-W-H 5-17.6-19.3-17.6 |
| GWTA3311 | 5~80 | 1000:1 1500:1 2000:1 2500:1 3000:1 | ≤500 | 0.1 0.2 0.5 | ID-L-W-H 6.0-28.0-28.0-22.0 | |
| GWTA34B11 | 5~100 | ≤1000 | 0.1 0.2 0.5 | ID-L-W-H 5.5-34.0-34.0-23.0 |
8.outline dimensions
Company introduction
1.certification
We have passed ISO9001:2015,CE,SGS approval and IEC report
2.Company profile
Tianjin Grewin is concentrating on transformers for 20 Years and complianted by ISO9001:2015,CB,IEC CB,CE etc.We're always pay great attention to its business philosophy "Quality and Honesty First".Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc .windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.We sincerely invite you to join us to create a bright future.
3.Terms of Shipment:
(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.
4.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.
5.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
6.Production
The following picture showed you about all finished transformer production line and package with export standard carton and strong pallets:
7.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 |
9 | Paying and receiving the balance | 4 days |
10 | Delivery of goods | 1 days |
8.Why choose us?
Quality and honest first!
A. Flexible service for diffierent transformers with high efficiency performance.
B. Over 40 years experience of transformer designing and producing.
C.100% test of every single product we produce from incoming material checking.
D. UL, CE, ISO9001:2008
E. We offer custom-made transformers, OEM and ODM are welcome
F. We deliver the quality you expect at consistently competitive prices
G.Transformer quality lifetime:10 Years.
H.Specialty Sales service:5 -10 Years
9.Contact
Tianjin Grewin Technology Co.,Ltd.
Tel: 86-22-84943756
Address: 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China.