Prod Model: |
GWTA 21A11 |
Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
Accuracy Class: |
Class 0.1,0.2 |
Operating Temperature:-25 To +55 Degree: |
Retardant Rating 94-V0 |
Frequency:50 To 400 Hz: |
Accuracy Class:as Defined in IEC 60044-1 |
Color: |
Blue,Black,Yellow,White |
Applications: |
Precision Watt-Hour Meter |
Use For: |
Electric Energy Measurement |
Application: |
Audio |
Phase: |
Single |
Coil: |
Amorphous Alloy Transformer |
Cooling Method: |
Dry-type Transformer |
Winding Type: |
Separated Winding Transformer |
Certification: |
SGS,Ce |
Brand: |
Grewin |
Product Description



The GREWIN AC series of miniature current transformers for electronic watthour meters are designed for applications where high-precision and minimal phase angle error watt-hour metre ect. electric energy measur -ment device .
A new TA model can be designed and manufactured to meet the specific design challenges of the client's specific application. The following models are only a small sampling of the many different products which have been and are currently being manufactured.

Miniature Current Transformers \ For Electronic Watthour Meter \ Without DC ImmunityFeatures:
Low cost
More than 30 standard sizes
Small size
High accuracy, wide linear range, good
Consistency
Terminal: PCB Mounted or Lead
Toroidal Nanocrystalline and Nickel Alloy cores available
Applications:
For applications that required high precision
And minimal phase angle error watt-hour
Metre ect. Electric energy measurement
Device
Specifications:
Exterior Material: PBT Resin UL flame
Retardant rating 94-V0
Interior Insulation: Epoxy Encapsulated
Isolation Current: 2500 Vrms for 1 minute
Dielectric Resistance: 1000 M Ohms @ 500 Vdc
Surge Withstand: 5000V(1.2/50μ S standard
Shock wave)
Operating Temperature: -25 to +55 Degree, -40 to
+85 degree optional
Frequency: 50 to 400 Hz
Accuracy Class: As defined in IEC 60044-1 Part 1 Current Transformers Class 0.1, 0.2
RoHS Compliant
GREWIN'S For Electronic Watthour Meter \ Without DC Immunity Typical Products : |
Photograph | Part Number | Rated (max) input current (A) | Ratio | Frequency (Hz) | Secondary Burden Resistance (Ohms) | Accuracy Class | Outline Dimensions (mm) | Output Mold | pdf |
| TGW2011 | 5(20) 5(50) 10(40) 15(60) | 1000:1 1500:1 2000:1 | 50-400 | ≤40 | 0.1 0.2 | ID-L-W-H 8.0 26.0-13.5-28.6 | lead | |
| TGW21A11 | 5(20) 5(50) 10(40) 15(60) | 1000:1 2000:1 2500:1 | 50-400 | ≤40 | 0.1 0.2 | ID-L-W-H 6.7 23.5-11.5-25.0 | lead/ pin |
| TGW21B11 | 5(20) 5(50) 10(40) 15(60) | 1000:1 2000:1 2500:1 | 50-400 | ≤40 | 0.1 0.2 | ID-L-W-H 6.7 23.5-11.5-25.0 |
| TGW22B11 | 5(20) 5(50) 10(40) 20(80) | 1000:1 2000:1 2500:1 | 50-400 | ≤50 | 0.1 0.2 | ID-L-W-H 8.7 26.0-17.5-27.5 |
| TGW22D11 | 5(50) 10(40) 10(60) 20(80) | 1000:1 2000:1 2500:1 | 50-400 | ≤50 | 0.1 0.2 | ID-L-W-H 8.0 19.5-18.5-30.0 |
| TGW22E11 | 5(50) 10(60) 10(100) 20(120) | 1000:1 2000:1 2500:1 | 50-400 | ≤50 | 0.1 0.2 | ID-L-W-H 12.8 36.7-14.2-38.5 |
| TGW2411 | 5(50) 10(40) 20(80) 20(100) | 1000:1 2000:1 2500:1 | 50-400 | ≤50 | 0.1 0.2 | ID-L-W-H 9.0 41.0-18.5-30.0 |
| TGW24B11 | 5(20) 5(50) 10(40) 15(60) | 1000:1 1500:1 2000:1 | 50-400 | ≤40 | 0.1 0.2 | ID-L-W-H 6.0 41.0-15.0-28.0 | lead |
| TGW3611 | 10(60) 15(60) 10(100) 20(80) | 500:1 1000:1 2000:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 32.0-30.0-30.0 |
| TGW36A11 | 1.5(6) | 150:1 250:1 300:1 1000:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 32.0-30.0-34.0 |
| TGW36B11 | 1.5(6) | 150:1 250:1 300:1 1000:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 28.0-30.0-32.0 |
| TGW20DA11 | 5(20) 5(50) 10(40) 15(60) | 1000:1 1500:1 2000:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 38.0-15.0-29.0 |
| TGW20EA11 | 5(20) 5(50) 10(40) 15(60) | 1000:1 1500:1 2000:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 45.0-28.0-29.0 |
| TGW3711 | 1.5(6) | 150:1 250:1 300:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 85.0-31.0-33.0 | lead | |
| TGW3811 | 1.5(6) | 150:1 250:1 300:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 98.0-23.0-33.0 |
| TGW38C11 | 1.5(6) | 150:1 250:1 300:1 | 50-400 | ≤40 | 0.1 0.2 | L-W-H 96.0-23.0-28.0 |
Contact info :Tianjin Grewin Technology Co., Ltd
Contact:Victor Dong
M: 86-13820617229
T:86-22-84943756
F:86-22-85909471
Website: http://www.grewin-tech.com/
GREWIN as manufacture for Toroidal Transformer, current transformer, high frequency magnetics transformer, split core current sensor, clamp on CT, EI power Transformer etc. We have abtained ISO9001: 2015, IEC, CE, VDE, approval.
Our company have many advantages which can be your honesty and reliable supplier:
WHY CHOOSE US?
A. Business philosophy "Quality and Honesty First“
B. Over 40 years experience of transformer designing and producing.
C. Transformer 100% test before the shipment;
D. UL, CE, ISO9001: 2008
E. We offer custom-made transformers, OEM and ODM are welcome
F. We expect at consistently competitive prices
G. Transformer quality lifetime: 10 Years.
H. Professional experiences of the sales and engineers: 5 -10 Years
Grewin Mission: Growing together side by side, Mutual success hand in hand.
We sincerely invite you to join us to create a bright future.
Contact Information:
Tianjin Grewin Technology Co., Ltd.
TEL: +86 22 84943756
Web: www.grewin-tech.com