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Revenue Grade Metering CTs

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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.

Revenue Grade Metering CTs Features Image

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


Drawing

Pin type for PCD mount and leadwire type are available. Different leadwire length is customizable.

Smart-Metering-Sensors-Drawing

Electrical Property & Dimension

F : 50Hz

Specification Spec
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 90A / 22.5mA -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

Secondary Burden & Output Voltage Graph

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Revenue Grade Metering CTs