LS3303 Portable Three Phase Energy Meter Test Bench

1. General
LS3303 portable three phase energy testing bench configures with three phase high stability program controlled power source, HY5303C-22 three phase multi-function standard meter. It can be operated by keypad for the simple functional test, and managed by personal computer also.
The portable testing bench is suitable for single phase/three phase electronic electro-mechanical meter. It can also calibrate multi-function meters.
It can provide abundant information such as: AC voltage, AC current, phase angle, power factor, active power, reactive power, apparent power, and frequency etc. The meter frame is suitable for 1~3 meters. The error process unit can be internal or external configures.
The bench is suitable for the calibration during product development, maintenance, debugging in manufacture line etc.
Reference standard
LS3303 portable three phase testing bench is according to GB/T11150-2001, JJG 597-2005, JJG596-1999, JJG 307-2006, DL/T 614-1997 standard in China.

2. Technical parameters
1)Device Accuracy Class: 0.05, 0.1
2)Output parameters
3)Voltage & Current output range
Voltage switch value: 57.7V/63.5V, 220V/240V(Optional 480V)
Current switch value: 0.1A, 1A, 5A, 20A, 100A
4)Output load capacity
Voltage circuit: Maximum 50VA
Current circuit: Maximum 100VA
5)Adjustment of output
6)Voltage adjustment
Adjustment range: 0%~125% of the switch value
Adjustment accuracy: 10%, 1%, 0.1%, 0.01%
Maximum output voltage: 300V or 600V
7)Current adjustment
Adjustment range: 0%~125% of the switch value
Adjustment accuracy: 10%, 1%, 0.1%, 0.01%
Maximum output current: 120 A
8)Phase angle adjustment
Adjustment range: 0° ~359.99°
Adjustment accuracy: 10%, 1%, 0.1%, 0.01%
9)Distortion of output voltage and current
Less than 0.5%(Reference testing condition is line load)
10)Stability of output power
The default setting of the power accuracy: The default setting of the output power accuracy: Less than 0.02% of the maximum range in 180s
11)three phase symmetrical
Difference between any phase voltage/ line voltage/ current and its average value is less than 0.2% between, phase angle between voltage and current is less than 0.2° .
12)harmonic wave setting
Harmonic number: 2~21
Harmonic percentage: Less than 40% compare to the base
Harmonic angle: 0° ~359.99°
13)Monitor
The parameters of the meter be test can be read from reference meter
14)Impulse output
Impulse output by reference meter 1) error process unit is used to calculate the meter be tested. 2) When the reference meter is sent to the reference institute for testing.
15)Device Structure:
Portable Source, Standard Meter and Meter shelf of 3 positions.
16)Power supply
Single phase AC voltage 220~240V, 50/60Hz, maximum input power consumption 500W

3. Basic Configuration
1)The testing bench adopts distributed error processing system. Each meter position has its respective error processor: HS-6000.
2)Each meter position has optical sampling/electrical pulse (OC or TTL) import, 485 communication port.
3)Each meter position could use connecting wire or meter holder.
4)Can simultaneously tests all kinds of three phase energy meters of the same specification and different constants (electronic and four-quadrant reactive energy meter)
5)Omit.
6)According to requirements, the device can test automatically the following items: Creeping, starting, basic error, standard deviation, 24h variation, etc. It also can choose the items to determine the test program.
7)Omit
8)When the output voltage and current is overloaded, the device can make automatic protection and sound and light alarm.
9)485 communication: Through the 485 communication port can test the memory capacity and set parameters of multi-function energy meters which have communication port.