Taehwatrans Revenue Grade CTs are designed for applications which require maximum accuracy & precision for tenant billing purpose. The best in class performance and robust design make them ideal for field installation in applications such as energy & demand metering, billing metering, tenant submetering, and load surveys.
Taehwatrans provides an extensive line of solid(toroidal) current transformers for a variety of applications. Our revenue metering class CTs are premium graded units intended for power metering applications where high accuracy and minimum phase angle error are prerequisite. Our CTs have 0.1% linearity at 5% to 120% of rated current, which is in compliance with 0.1, 0.2 and 0.2S class accuracy of IEC61869-2 and 0.15 and 0.15S of ANSI standard.
Our products are UL Recognized for both US and Canada and some lines of CTs are Measurement Canada certified. Our products has excellent reading sensitivity at very low current levels and stable performance over different temperature ranges from -40 to 80 degrees.
Our commercial metering CTs are widely used in 0.2 and 0.2S class industrial and commercial smart meters by global top-tier electrical meter manufacturers around the globe. For example, our TZ31L model is applied to a 0.2 class meter that requires 0.1% linearity from 1mA to 10A current ranges.
We are very proud of being capable of offering extensive selections of CTs with different sizes, different mounting styles along with numerous secondary ratios to meet most applications.
Application
- 0.1/0.2 class revenue grade metering (1A or 5A current rated CT connected meters)
- Industrial meters
- Substation MV/ LV feeder monitoring
- Data Logger in Digital Fault Recorders
- Inverter controlling
- Power quality analyzer
- HEMS(Home Energy Management System) / BEMS(Building Energy Management System)/ FEMS(Factory Energy Management System)
- EV charge stand / cable
General Features
- 0.1/0.2 class accuracy compliant to IEC61869-2 and ANSI C12.20
- Linearity: 0.1%
- Frequency: 50 to 400 Hz
- High potential voltage : 2,500 Vac/min
- Best low current sensitivity & stability
- Operating Temperature: -35°C to +65°C
- Consistent performance over temperature changes
- UL Recognized
- RoHS compliant
F : 50Hz / 60Hz
| Model NO | Current Ratio | Amplitude Error(%) | Phase Shift (min) | DCR(Ω) | Imax | Dimensions(mm) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.25A | 5A | 0.25A | 5A | (±6%) | Window | Width | Height | Thickness | |||
| TC158V | 5A / 2mA | -0.03±0.05 | -0.03±0.03 | 1'±2' | 1'±1' | 37.5 | 450A | 17.5 | 55.7 | 64.5 | 24 |
| TS76V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.05 | 3'±2' | 3'±2' | 51 | 180A | 12.9 | 41.3 | 37.5 | 14 |
| TS77V/L | 5A / 2mA | -0.03±0,07 | -0.03±0.07 | 7'±2' | 5'±3' | 130 | 80A | 6.9 | 26.8 | 23.6 | 11 |
| TLS65V/L | 5A / 5mA | -0.05±0.15 | -0.05±0.15 | 16'±6' | 14'±6' | 43 | 22A | 5.7 | 19.2 | 19.5 | 8.6 |
| TLS68V/L | 5A / 3.125mA | -0.05±0.15 | -0.05±0.15 | 16'±6' | 10'±6' | 97 | 23A | 5.7 | 19.2 | 19.5 | 8.6 |
| TLS77V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.07 | 6'±3' | 5'±3' | 130 | 80A | 6.8 | 23.5 | 25 | 11.0 |
| TLS71V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.07 | 5'±5' | 4'±3' | 187 | 100A | 8.9 | 25.3 | 27.5 | 17.0 |
| TLS84V/L | 5A / 5mA | -0.03±0.07 | -0.03±0.07 | 9'±2' | 6'±2' | 20 | 120A | 12.9 | 38.0 | 39.3 | 14.0 |
| TLS85V/L | 5A / 2.5mA | -0.03±0.07 | -0.03±0.07 | 5'±4' | 5'±3' | 39 | 150A | 12.9 | 38.0 | 39.3 | 14.0 |
| TLS76V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.07 | 4'±4' | 3.5'±3' | 51 | 180A | 12.9 | 38.0 | 39.3 | 14.0 |
| TLS31L | 10A / 2mA | -0.03±0.07 | -0.03±0.07 | 8'±4' | 6'±4' | 395 | 110A | 13.0 | 35.7 | 31.5 | 16.5 |
| TLS110L | 100A / 25mA | -0.03±0.07 | -0.03±0.07 | 7'±4' | 5'±3' | 280 | 140A | 32.3 | 63.2 | 59.6 | 18.0 |
| TLS104L | 100A/100mA | -0.03±0.07 | -0.03±0.07 | 7'±4' | 6'±4' | 12 | 140A | 19.6 | 52.0 | 48.2 | 19.2 |
| TLS105L | 200A/100mA | -0.03±0.07 | -0.03±0.07 | 4'±2.5' | 3'±2.5' | 26 | 240A | 19.6 | 52.0 | 48.2 | 19.2 |
| TLS106L | 200A/80mA | -0.03±0.07 | -0.03±0.07 | 4'±2' | 3'±2' | 33 | 280A | 19.6 | 52.0 | 48.2 | 19.2 |
| TLS79L | 200A/80mA | -0.03±0.07 | -0.03±0.07 | 4'±2' | 3'±2' | 33 | 360A | 19.5 | 51.2 | 48.2 | 19.3 |
| TLS96L | 200A/40mA | -0.03±0.07 | -0.03±0.07 | 7'±4' | 5'±4' | 246 | 180A | 19.6 | 52.0 | 48.2 | 19.2 |
| TZ76V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.07 | 4'±5' | 0±5' | 51 | 180A | 12.9 | 38.0 | 39.3 | 14.0 |
| TZ71V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.07 | 5'±5' | 4'±3' | 187 | 100A | 8.9 | 25.3 | 27.5 | 17.0 |
| TZ77V/L | 5A / 2mA | -0.03±0.07 | -0.03±0.07 | 7'±5' | 5'±5' | 130 | 80A | 6.8 | 23.5 | 25.0 | 11.0 |
| TZ73V/L | 5A / 2mA | -0.25±0.25 | -0.25±0.25 | 15'±8' | 11'±6' | 103 | 45A | 6.8 | 23.5 | 25.0 | 11.0 |
| TZ31L | 10A / 2mA | -0.03±0.07 | -0.03±0.07 | 8'±4' | 6'±4' | 395 | 110A | 13.0 | 35.7 | 31.5 | 16.5 |
| TZ87V/L | 5A / 1.25mA | -0.03±0.07 | -0.03±0.07 | 7'±4' | 5'±4' | 160 | 100A | 12.9 | 41.3 | 37.5 | 14.0 |
* V : PCB Mountable
* L : Lead Wire
