ND3020 Series Multifunctional Electrical Meter Calibration Bench-Wuhan Nanxing Electric Power Technology Co., Ltd.

Phone: 400-027-8938

Mobile: 133 9714 9829

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ND3020 Series Multifunctional Electrical Meter Calibration Bench

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Power Quality and Safety Tools Testing Series

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ND3020系列电能表多功能校验台

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II. Main Technical Specifications and Performance:

1. Instrument class: Class 0.05

2. Computer communication port: RS-232 serial port

3. Technical parameters of the three-phase source:

3.1 Output Voltage:

3 * 57.7V Y 3*100V ∆

3 * 220V Y 3*380V ∆

Adjustable amplitude, continuously variable from 0% to 120%

Fineness adjustment: better than 0.01%

3.2 Output Current: 25 mA, 0.1 A, 1 A, 5 A, 25 A, 100 A

Adjustment range: continuously adjustable from 0% to 120%; adjustment resolution better than 0.01%.

Minimum output current: 5 mA (accuracy: <5%)

3.3 Output Power: (Voltage Circuit) 3 × 100 VA

(Current circuit) 3 × 150 VA

3.4 Output voltage, current, and power stability;

≤0.05%/120S

3.5 Output voltage and current waveform distortion: ≤ 0.5%

3.6. Three-phase symmetry: better than 120° ^o Soil 0.2 ^o

3.7 Frequency range: 45 Hz to 65 Hz; Adjustment resolution: 0.01 Hz

3.8 Phase shift range: -180.0 ^o ~180.0 ^o Fineness adjustment: 0.01 ^o

3.9 Indicating instrument class: The accuracy of voltmeters and ammeters is ±0.01%.

The phase meter has an accuracy of ±0.01. ^o

The frequency meter has an accuracy of ±0.01 Hz.

4. Technical parameters of the built-in three-phase standard meter:

4.1 Voltage Input

Input range (V): 40–480

Input range (V): 60, 120, 240, 480

Overload Capacity (V): 600

Input load ≤ 0.5 mA (480 V)

4.2 Current Input

Input range (A): 0.01–100

Input range (A): 100, 50, 25, 10, 5, 2.5, 1, 0.5, 0.25, 0.1, 0.05, 0.025, 0.01, 0.005

Overload Capacity (A): 150

4.3 Accuracy

4.3.1 Accuracy Class: 0.05 class (0.025 A to 100 A)

4.3.2 Power Measurement Accuracy

Active power measurement accuracy: 0.05% (PF ≥ 0.5)

Reactive power measurement accuracy: 0.1% (PF ≥ 0.5)

4.3.3 Accuracy of Electrical Energy Measurement

Active energy measurement accuracy: 0.05% (PF ≥ 0.5)

Reactive energy measurement accuracy: 0.1% (PF ≥ 0.5)

5. The device features comprehensive protection functions: voltage short-circuit protection, current open-circuit protection, and overload protection for the load.

Monitor overvoltage protection.

6. Supports harmonic tests from the 2nd to the 21st order, as well as voltage interruption and sag tests; harmonic amplitude is adjustable.

7. Power supply: 230 V ±10% ~ 50 Hz

8. Maximum power consumption: 300 VA

9. Operating environment: Temperature 20°C ± 5°C, relative humidity ≤ 85%

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ND3020 Series Multifunctional Electrical Meter Calibration Bench

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