Single phase energy meter calibration test bench

Product Overview

Description

 1. Introduction

KP-S1000 single phase energy auto-calibration system is a new
generation, high precision energy meter calibration equipment. It uses the advanced technology and electronic components available in 90 decade . The test bench can be operated from embedded keyboard or operated from PC software.

 

2. Feature and function
1) Equipped with electronic phantom load power source, assuring high stability,security and large output capacity.
2)Automatic adjustment of current measurement range. Fault self-detection in voltage amplifier and current amplifier.
3) Equipped with RS-232C interface, can be operated from software.
4) Test results be saved to database, can be inquired from database and can be printed out.

 

3. Technical specification
Power supply: 220V+10%, 50Hz/60Hz
Maximum power consumption: 1000VA (for 24 positions)

 

4.Power source Technical specification:
Voltage output: 1x 30V (AC) – 1 x 300V (AC);
Resolving power: 0.01% of current range
•Current output: 0.001A (AC) – 100A (AC)
Resolving power: 0.01% of current range (min 0.0001A)
•  Phase shift range: 0-360°
Resolving power: 0.1°
• Frequency output: 45Hz – 65Hz
Resolving power: 0.01Hz

• Waveform distortion (sine wave output):

voltage < 0.5%
current < 0.5%
• Stability of power source (sine wave output):
< 0.1% (180s)
• Load can be resistance / inductor or capacitance(<4uF)
• Output waveform: sine waveform
• Output capacity:
Voltage source: 300VA-1500VA(dependent on meter positions)
Current source: 300VA-2500VA(dependent on meter positions)

 

5.Reference meter Technical specification
• Type: KP-1100 reference meter (compatible HY5101or HDS122-02 )
•  Power supply: 220V +10%, 50Hz/60Hz
•  Maximum power consumption: 20VA
•  Measurement range:
Voltage: 60V (AC) - 280V (AC)
Current: 0A (AC) - 100.0 (AC)
• Accuracy: 0.1
•  Warming up: 1 mins
•  Working environment:
Temperature: + 5℃~ + 40℃
Relative humidity<85%
•  Dimensions: 480mm X 420mm X 140mm

• Weight: 2.0kg

 

6.Error Calculator Technical specification
•  Impulse of tested meter could be: TTL / OC / Optical head
•  Max. frequency of impulse could be: 200Hz
•  Error display range: 0.001%-99.99%

 

7. Working principle and frame

Introduction:
1.Signal generator
The “YELLOW COLOR" marked frame is included in signal generator box. Signal
generator is equipped with DDS waveform technology (digital frequency
modulation, amplitude modulation and phase modulation). Embedded MCU is
the brain of signal generator, also it is the brain of testbench, signal generator
generate high stability sine waveform which is send to voltage amplifier and
current amplifier.
2. Power amplifier
Power amplifier features stability and reliability with the PWM amplify
technology and well-designed protection when output voltage shortcut and
output current circuit open.
3.Measurement
Error of tested meter is achieved by comparison with the reference meter.