Hangzhi Precision

Hangzhi RIT series AC / DC Leakage Current Transducer

Hangzhi Leakage Current Transducer, developed on the basis of Multi-Point Zero Flux Gate technology is a measuring module that uses the principle of electromagnetic induction to convert the measured current into a DC/AC voltage (or DC/AC current) signal proportional to the primary current. The primary and secondary sides are highly insulated. It has the characteristics of high accuracy, high linearity, high integration, small size, simple structure, stable long-term work and adapting to various working environments.

RIT series current transducer is designed for measuring the small DC/AC current from 0.01A to 10A, and output with voltage. It has been used for vacuum coating and data center power supply systems (Trusted by Vertiv Technology Co., Ltd).

Key Features of Hangzhi leakage Current Transducer

High Accuracy

1% accuracy @ range of 0.05A; 0.2% accuracy @ 0.1A to 10A

Micro Current Measurement

Measurement range down to 0.01A with 1% accuracy

AC / DC Measurement

Can measure both AC & DC currents.

Insulated Measurement

Non-contact and insulated measurement

Typical Applications of Hangzhi leakage Current Transducer

leakage current transducer application - bullet train
Rail Applications

• Measure instantaneous current and voltage values in isolation.

• Hangzhi Residual Current Transducer Products are available with range from 0.01A to 10A with non-contact method to measure current

• Highly flexible installation, and modular design to meet the different market demands of railway systems.

• Achieve high performance indicators (accuracy from 1% to 0.1%)

• Wide temperature range, high insulation withstand voltage and electromagnetic compatibility design to meet the railway standards of different countries.

The maximum allowable input leakage current of UPS products is up to 5% of the UPS rated load current, which  is much higher than common 30mA configuration. Therefore, the operating current level must be increased when selecting the anti-leakage protector to prevent frequent misoperation. According to the regulations of the power department, UPS leakage protection It should be classified as a first-level general protection and belongs to leakage protection.

When there are multiple leakage protectors in the power distribution system, the selectivity of grading actions should be met. The rated leakage current of the upper-level leakage protector should be at least three times the rated leakage current of the lower-level leakage protector, and the minimum non-operation time of the upper-level leakage protector should be greater than the maximum cut-off time. The closing time of the lower level protector. Otherwise, due to the matching problem of the upper and lower actions, a large area power failure will occur.

Hangzhi residual current transducer products are designed to meet the requirements of multi-level residual current protections, with range from 0.01A to 10A, high accuracy & linearity, low zero offset voltage, high bandwidth and short dynamic response time. 

 

residual current transducer application - ups
Data Center UPS

Hangzhi Leakage Current Transducer Catalog

hangzhi RIT leakage current transducer

RIT001 Residual Current Transducer, AC / DC

Primary Nominal Current: DC0.01;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±1V

Accuracy: 1%;

Linearity: 0.2%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT001 Datasheet

hangzhi RIT leakage current transducer

RIT002 leakage Current Transducer, AC / DC

Primary Nominal Current: DC0.02;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±1V

Accuracy: 1%;

Linearity: 0.2%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT002 Datasheet

hangzhi RIT leakage current transducer

RIT005 Residual Current Transducer, AC / DC

Primary Nominal Current: DC0.05;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±1V

Accuracy: 1%;

Linearity: 0.2%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT005 Datasheet

hangzhi RIT leakage current transducer

RIT01 Residual Current Transducer, AC / DC

Primary Nominal Current: DC0.1A;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±2V

Accuracy: 0.2%;

Linearity: 0.1%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT01 Datasheet

hangzhi RIT leakage current transducer

RIT05 Residual Current Transducer, AC / DC

Primary Nominal Current: DC0.5A;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±2V

Accuracy: 0.2%;

Linearity: 0.1%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT05 Datasheet

hangzhi RIT leakage current transducer

RIT1 Residual Current Transducer, AC / DC

Primary Nominal Current: DC1A;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±2V

Accuracy: 0.2%;

Linearity: 0.1%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT1 Datasheet

hangzhi RIT leakage current transducer

RIT2 Residual Current Transducer, AC / DC

Primary Nominal Current: DC2A;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±2V

Accuracy: 0.2%;

Linearity: 0.1%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT2 Datasheet

hangzhi RIT leakage current transducer

RIT5 Residual Current Transducer, AC / DC

Primary Nominal Current: DC5A;

Overload Capacity: 200% for 1 minute

Power Supply: DC14.2V to 15.8V

Output Voltage: ±5V

Accuracy: 0.2%;

Linearity: 0.1%;

Zero Offset Voltage: ±10mV

Dynamic Response Time: 2ms

Frequency bandwidth
(-3dB): up to 100KHz

Insulation Voltage (Between primary and secondary): 5KV

Operation Temperature Range: -40 ~ 85℃

RIT5 Datasheet

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