The YN3030A three-phase AC and DC standard source adopts a meter-source integrated structure, all-digital closed-loop standard source technology, using embedded systems, large-screen TFT color liquid crystal displays and touch screens, CPLD chips, and a series of devices such as high-precision A/D, D/A, etc. , Small size and light weight, can be widely used in the electric energy measurement industry, electrical laboratories and other related departments, and it is easy to carry to the scene.

1. The touch screen control panel and mask buttons are used to display a large amount of information and easy to use.

2. Built-in high-level standard electric energy meter, and use it as a standard for digital closed-loop feedback, voltage, current, frequency, phase, active power, reactive power, apparent power, power factor and other parameters can be used as standards.

3. With multiple protection functions: current limiting protection, power amplifier protection, voltage short circuit protection, current open circuit protection, power amplifier thermal protection and other functions.

4. Intelligent gear position: within the allowable output range of the instrument, the user can arbitrarily set the respective rated voltage and current gear positions of the three-phase voltage and current. The test points and adjustment fineness of voltage and current refer to the rated gear position set by the user Value, convenient for user operation. ▫ ▫ ▫ ▫ ▫ ▫

5. Abundant test points for current and power factor, easy to configure various calibration schemes.

6. The data storage capacity is large, and the verification data can be easily inquired.

7. With RS232 serial port, it is convenient for computer control and software upgrade.

1.1 Power output:

1.1.1 AC voltage output

Adjustment fineness: 0.01%RG

Resolution: 6 significant digits

Accuracy: better than ±0.05%RG

Stability: better than ±0.01%RG/1min

Distortion: better than 0.3% (non-capacitive load)

Output power: rated 20VA per phase

Full load adjustment rate: less than ±0.01%RG

Output range: 10V～460V

Gear setting: 57.7V, 100 V, 220V, 380V, internal automatic gear switching.

1.1.2 AC current output

Adjustment fineness: 0.01%RG

Accuracy: better than ±0.05%RG

Resolution: 6 significant digits

Stability: better than ±0.01% RG /1min

Distortion: better than 0.3%

Output power: rated output 20VA per phase gear.

Full load adjustment rate: less than ±0.01%RG

Output range: 1mA～24A

Gear setting: 0.2A, 1A, 5A, 20A, automatic gear switching

1.1.3 Power output

Accuracy: Better than 0.05%RG

Stability: Better than 0.01%/1min. To

Resolution: 6 significant figures (active power, reactive power, apparent power)

1.1.4 Power factor

Adjustment range: -1～0～+1;

Resolution: 0.00001;

Accuracy: 0.0005.

1.1.5 Phase

Adjustment range: 0～359.99°

Resolution: 0.001 °

Accuracy: ±0.02°

1.1.6 Frequency

Adjustment range: 40Hz～70Hz

Resolution: 0.001Hz

Accuracy: ±0.002Hz

1.1.7 Harmonics

The YN3030A three-phase AC/DC standard source can accurately output the 2~51th harmonics. The harmonics can be combined and output at the same time at the same time, but the total harmonic content rate when outputting the harmonics should not exceed the limit listed in the table below. . Harmonic content display accuracy is 0.1%, and harmonic content display resolution is 4 significant digits. The adjustment range of harmonic phase (relative to the fundamental wave) is 0-359.99°.

Harmonic order Voltage harmonic content rate (relative to fundamental wave)
2-8 40%
9-15 30%
16-31 20%
32-51 5%
1.2 Technical indicators for calibration of electric meters

Device output power pulse constant: 18000000×5/In

(Note: In is the current gear value in the standard source 60 (100), 20, 5, 1, 0.2)

Output pulse level: 5V

Number of input pulse channels of watt-hour meter: 1 channel

Watt-hour meter input pulse level: within 5V or passive

Error display range of watt-hour meter: ±0.000%--±99.99%

Error display resolution of watt-hour meter: 0.001%

Watt-hour meter constant input range: 6 significant digits, decimals are allowed.

The test points for meter calibration include: Imax, 0.5 Imax, 1.2Ib, 1Ib, 0.5 Ib, 0.2 Ib, 0.1 Ib, 0.05 Ib, 0.02 Ib, 0.01 Ib.

The power factor test points that can be set for meter calibration are 1.0, 0.5L, 0.8C, and 0.5C.

The setting range of the calibration circle of the electric meter is 1-9999.

1.3 Commonly used output adjustment test points provided when the instrument is used as a standard source

Voltage test points: 10%, 20%, 50%, 80%, 100%, 110%, 120%.

Current test points: 5%, 10%, 20%, 30%, 50%, 70%, 100%, 120%.

Phase test points: 0.5L, 0.8L, 1.0, 0.8C, 0.5C.

The amplitude of the three-phase voltage and current can be adjusted separately, the adjustment fineness: 10%, 1%, 0.1%, 0.01%; the adjustment range is 125%.

The phase and power factor of the three-phase voltage and current can also be adjusted in phases, with adjustment finenesses of 10°, 1°, 0.1°, and 0.01° respectively.

The phases of UB and UC can also be adjusted separately for UA.

The frequency adjustment is adjusted by the three-phase voltage and current together, and the adjustment fineness is 5Hz,

1 Hz, 0.1 Hz, 0.01 Hz.

1.4 Power supply

Single-phase AC 220V, 50/60Hz.

1.5 External dimensions

480*600*178mm

1.6 weight

Weight 27Kg.