Hangzhi Current Transducer, Power : Electric

The high-precision open-loop current sensor utilises fluxgate technology to address the issue of low current detection accuracy found in existing open-loop current sensors within the industrial sector. By applying a multi-point zero-flux technology system to the current high-precision open-loop sensors, it combines excitation flux closed-loop control, self-excitation fluxgate technology, and multi-closed-loop control technology to achieve zero-flux closed-loop control of excitation flux, DC flux, and AC flux. A high-frequency ripple sensing channel is constructed to detect high-frequency ripples, enabling the sensor to maintain high gain and measurement accuracy across the full bandwidth range.

The sensor is designed for electronic current measurement: DC, AC, and pulse, providing current isolation between the primary and secondary circuits. It complies with EMC standards (EN61000-3-2:2014, EN 61000-6-4:2007+A1 (2011), EN61000-3-3:2013, EN61000-6-2:2005) and safety standards (EN 61010-1:2010+A1 (2016), IEC61010-2-030:2017).

Application Fields:

New Energy: Power analyzers and power meters supporting on-site calibration

Power Distribution System Upgrades: Applications such as DC power system upgrades in power plants, substation DC system upgrades, communication room upgrades, and railway locomotive retrofitting

Live Operation in Power Distribution Networks

Other Applications Where Equipment Operation Cannot Be Interrupted

The temperature-compensated (closed-loop) current sensor employs an extremely precise zero-flux detector fluxgate technology (HANGZHI patents: ZL201820961112.7/ZL201820371736.3/ZL201820383681.8/ZL201922233758.0/ZL201820962443.2/ZL201820373225.5/2021SR0931672).

IPN: ±400

Connection: Phoenix terminal

Mounting: Plane or vertical panel installation

Features:

Electrostatic shielding between primary and secondary circuits

Optical isolation output (optocoupler) indicating sensor status

LED indicator confirming normal operation

Outstanding linearity across the entire temperature range

Best-in-class accuracy with excellent linearity

Ultra-low temperature drift

350kHz wide frequency bandwidth

High immunity to external fields

Power supply: ±15V (Min: 14.25V, Max: 15.75V)

Temperature range: -30°C to +75°C

DC current measurement range: -480A to +480A

AC current measurement range: 283A

Response time: 2μs

Accuracy: 0.05%

Product Series: CIT series

Brand: HANGZHI

Part Number: CIT 400

Specifications: EN

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