Q144-RBC Q96-RBC Q72-RBC Q48-RBC Ammeter AC

Q144-RBC Q96-RBC Q72-RBC Q48-RBC Ammeter AC

Overview of Q144-RBC Q96-RBC Q72-RBC Q48-RBC Ammeter AC

AC ammeter is an instrument for measuring the current of AC circuit. Wiring method: it can be directly connected to the circuit to measure the current. The second wiring method: the ammeter indirectly measures the current through current transformer. It is used to measure large current with small range ammeter. It is often used in power transformation and distribution system to measure the current value of three phases of power supply with three AC ammeters through transformer. Whether the three-phase power consumption is balanced is determined by measuring the current value and voltage value of each phase of three phases. Another method is to use three ammeters to measure the current value of each phase through two current transformers。

It is applicable to places with high requirements and harsh environment, such as ship power distribution cabinet, railway train, power system, petrochemical industry, mining, nuclear power station, mobile power station and so on. The instrument adopts * * * movement structure. The measuring mechanism of this series of electric meter is supported by magnetoelectric system (hairspring and tension wire). The rotating part has no friction, reliable operation and high mechanical impact resistance. It can also replace the imported meter

The instrument is applicable to single-phase lines, three-phase three wire and three-phase four wire balanced lines. For different lines, only the wiring mode can be changed, that is, the same transmitter can be used to measure line power factor, current, voltage, active power meter, frequency and other parameters.

This series of marine electric meter is applicable to power grid, automatic control system, ship distribution cabinet, railway train, power system, petrochemical industry, mining, nuclear power station and mobile power station. It can be used together with mutual inductor, voltage divider, shunt and electric quantity transmitter. It can measure the current, voltage, frequency, active power, reactive power, power factor and other electrical parameters in the power of each equipment, and adopt pointer panel display, The measuring mechanism of this series of electric meters is the tension wire support of magnetoelectric system. The rotating part has no friction, reliable operation and high mechanical impact resistance.

The meter has high measurement accuracy, large rotation angle (rotation angle 240 degrees or 270 degrees), good linear scale and exquisite printed dial (can be used as color dial and night light dial)

Technical indicators (executive standard: GB / t7676-1998)

Accuracy grade: measurement accuracy: grade 1.5, 1.0 and 0.5; Display mode: 240 degree wide angle display

Input: voltage: AC100V, AC220V, AC380, dc75mv, etc. / current: ac5a, 1a, dc20ma, etc

Over range: duration: 1.2 times, instantaneous: 10 times current / 5 seconds, 2 times voltage / 10 seconds,

Withstand voltage: circuit and enclosure ac2200v / 1 minute

Frequency: 50 ± 10%

High resistance to mechanical shock and satisfactory operation under the condition of acceleration less than or equal to 0.7G

Insulation resistance: ≥ 100m Ω

Mean time between failures: ≥ 50000h