MC-YJZ3 Three-Phase AC/DC Standard Source

MC-YJZ3 Three-Phase AC/DC Standard Source

Model: MC-YJZ3 Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

Category: Metrological verification device

Keywords: MC-YJZ3 Three-Phase AC/DC Standard Source

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Product Overview

The MC-YJZ3 three-phase standard source features an integrated meter-source design and employs fully digital closed-loop standard-source technology. It incorporates an embedded system, a large-screen TFT color LCD display, CPLD chips, and high-precision A/D and D/A converters, among other advanced components. With its compact size and light weight, it is widely applicable in the electric energy metering industry, electrical laboratories, and other relevant departments, and is conveniently portable for field use.

Product Features

  1. It features a touch-screen control panel with dedicated mask-setting buttons, offering extensive display information and simple, convenient operation.
  2. An high-grade standard power meter is embedded, serving as the reference for digital closed-loop feedback; voltage, current, frequency, phase, active power, reactive power, apparent power, power factor, and other parameters can all be used as reference standards.
  3. Features multiple protection functions, including current-limiting protection, power amplifier protection, voltage short-circuit protection, current open-circuit protection, and power amplifier thermal protection.
  4. The three-phase voltage and current loops are independently controlled, with the output parameters for each phase voltage and current adjustable separately.
  5. Intelligent Range Setting: Within the instrument’s allowable output range, users can freely set the rated voltage and current ranges for each of the three-phase voltage and current channels. The test points and adjustment resolution for voltage and current are both based on the user-defined rated range settings, making operation more convenient.
  6. Abundant voltage, current, and phase test points for convenient operation.

 

Technical Specifications

  1. Power Output
    1. Voltage: 10–456 V (internal voltage settings: 57.7 V, 100 V, 220 V, 380 V); maximum output power: 20 VA.
    2. Current: 0.001–12 A (24 A) (internal current ranges: 1, 2.5, 5, and 10 A (20 A)); maximum output power: 20 VA.
    3. Output frequency: 45–65 Hz.
    4. Output phase: 0–359.99°.
    5. Stability: For classes 0.1 and below, the stability of voltage, current, and power shall not exceed 0.02%; for class 0.05, the stability of voltage, current, and power shall not exceed 0.01%.
    6. Distortion: At the internal rated output level, voltage and current distortion shall not exceed 0.5% (non-capacitive load).
    7. Harmonics: 2nd to 31st orders, with the total harmonic content not exceeding 40% of the fundamental, and multiple harmonics may be superimposed.
      1. Output and display accuracy:
Output accuracy Level 0.1 Class 0.05
Voltage 0.1% 0.05%
Electric current 0.1% 0.05%
Frequency 0.02Hz0.005Hz
Phase 0.05° 0.02°
Power factor 0.1% 0.05%
Active power 0.1% 0.05%
Reactive power 0.2% 0.1%
Apparent power 0.1% 0.05%
Display Items Resolution
Voltage 6 significant figures
Electric current 6 significant figures
Frequency 0.001Hz
Phase 0.001°
Power factor 0.00001
Active power 6 significant figures
Reactive power 6 significant figures
  1. Common Output Regulation Test Points
  1. Voltage test points: 80%, 90%, 100%, 110%, 120%.
  2. Current test points: 1%, 5%, 10%, 20%, 50%, 100%, 200%, and 400%.
  3. Phase test points: 0.5L, 0.8L, 1.0, 0.8C, and 0.5C.
  4. The amplitudes of the three-phase voltage and current can be adjusted independently, with adjustment resolutions of 10%, 1%, 0.1%, and 0.01%; the maximum adjustment range is up to 125%.
  5. The phase angles of the three-phase voltage and current, as well as the power factor, can also be adjusted on a per-phase basis, with adjustment resolutions of 10°, 1°, 0.1°, and 0.01°, respectively.
  6. The phases of UB and UC relative to UA can also be adjusted independently.
  7. Frequency regulation is performed simultaneously for the three-phase voltage and current, with adjustment resolutions of 5 Hz, 1 Hz, 0.1 Hz, and 0.01 Hz, respectively.
  1. Power supply: Single-phase AC 180–265 V, 50/60 Hz.
  2. External dimensions: 440×400×133 mm
  3. Weight: 18 kg.
MC-YJZ3 Three-Phase AC/DC Standard Source

MC-YJZ3 Three-Phase AC/DC Standard Source

Model: MC-YJZ3 Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

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Tel： 86-13307164232

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