In 2024, Guangzhou Geny Electric Ltd successfully delivered a 32-position, 160A, Class 0.02 three-phase smart meter test system to CLP Power Hong Kong Limited (“CLP”), one of Hong Kong’s leading power utility companies.   This project marks the first successful deployment of GENY’s classic 160A meter test bench at CLP, representing an important breakthrough for GENY in the Hong Kong utility market. It also demonstrates our capability to provide high-precision, utility-grade meter testing solutions for demanding international applications.   As a major power company in Hong Kong, CLP maintains strict requirements for accuracy, safety, compatibility, reliability, and compliance with local standards. The successful implementation of this project reflects GENY’s strong expertise in smart meter testing systems, isolated current solutions for closed-link meters, automated testing, and customer-oriented engineering customization.   Project Background With the ongoing development of smart grid infrastructure, utility companies require more from meter test equipment than conventional accuracy verification. Modern test systems must also support:   l Smart meter communication and function testing l High-efficiency multi-position parallel testing l Compatibility with different meter structures l Testing of closed current link / IP-link smart meters l Harmonic and influence quantity testing l High-accuracy calibration in accordance with IEC standards l Compliance with local safety and wiring requirements For CLP, the solution needed to combine high measurement accuracy, practical operation, smart meter communication capability, and adaptation to Hong Kong standards. Based on GENY’s mature platform and engineering experience, we delivered a tailored configuration of the YC1893D-32-0.02-F three-phase smart meter test system.   The Solution The delivered system includes the following core modules:   l Three-phase static power source l Three-phase reference standard meter l 32-position meter test rack l Smart meter function test system l Optical probes and scanning heads l Quick Connector Devices (QCDs) l Isolation Current Transformers (ICTs) l PC software and system control platform l Serial communication expansion system The system supports single-phase and three-phase meter testing in automatic, semi-automatic, and manual modes, and is suitable for:   l Electronic energy meters l Electro-mechanical meters l Smart meters l Closed-link / IP-link meters l Different terminal layouts and meter designs     Key Highlight 1: 32 Positions for Efficient Parallel Testing The project includes two test racks with a total of 32 meter positions, enabling efficient parallel testing for batch inspection and calibration.   Each rack is constructed with aluminum alloy structures, combining strength, corrosion resistance, and mobility. The rack design also supports easier installation, maintenance, and layout adjustment in the customer’s working environment.   Each meter position is equipped with:   l QCD quick connection device l Scanning head and optical probe l Error LED display with inputs l Meter communication readout (dlms/kingfisher) This configuration allows the system to perform not only conventional accuracy tests, but also smart meter communication and function verification.   Key Highlight 2: 160A Output with ICTs for Closed-Link Meter Testing One of the major technical requirements of this project was support for high-current testing up to 160A, while also ensuring compatibility with closed current link smart meters.   To meet this requirement, GENY integrated high-precision Isolation Current Transformers (ICTs) into the system. These ICTs provide isolated and potential-free current signals, allowing reliable testing of meter types that are difficult or impossible to test on conventional benches.   Main ICT features include:   l Current range: 3 × (10mA – 160A) l Accuracy class: 0.01 l Ratio: 1:1 l Frequency range: 45Hz – 65Hz l Output power: 3 × 70VA max This solution significantly extends the test bench’s compatibility with modern smart meter designs and enhances its long-term application value.     Key Highlight 3: High Accuracy and Stable Performance The system delivered to CLP provides Class 0.02 performance, enabled by GENY’s stable three-phase power source and high-accuracy reference standard meter.   Power Source Performance l Voltage output: 3 × (5V – 456V) l Current output: 3 × (1mA – 160A) l Setting accuracy: better than 0.05% l Stability: better than 0.005% / hour l Distortion factor: < 0.3% l Harmonic output: 2nd to 51st programmable l Phase angle range: 0° – 360° l Frequency range: 45Hz – 65Hz Reference Standard Meter Performance l Voltage measurement range: 5V – 480V l Current measurement range: 10mA – 160A l Voltage, current, power, and energy error: ≤ ±0.02% l Multiple wiring modes supported l Harmonic measurement and waveform display supported This configuration ensures the system can meet demanding utility and laboratory requirements while maintaining reliable long-term performance.   Key Highlight 4: Flexible Operation for Real-World Utility Applications To support different working scenarios, the system is designed for:   l Fully automatic operation l Semi-automatic operation l Manual operation The power source cabinet is equipped with a touch panel / VFD keyboard for convenient local control. At the same time, RS232 and Lan communication interfaces allow automated control through PC software.   The system supports a wide range of test items, including:   l Basic error test l Accuracy test l Repeatability test

EDMI Brisbane Laboratory Fully Automated Robotically Operated Three-Phase Energy Meter Calibration System   Model: YC1893D   Accuracy class: 0.05% Fully automated test line energy meter calibration system for state-owned power companies in China   This is a fully automated calibration of an energy meter using a standard source (model: YCSS101/YCSS103) with an error accuracy of 0.05 class.   Automated test bench project at Saudi meters company (SMC) , 80 positions three-phase meter test bench.   Model : YC1893D Fully automated production workshop project for Chongqing Electric Power Company with robotic operation of three-phase energy meter calibration system.   Model: YC1893D  

  Customer: Guangdong Electric Power Research Institute (EPRI) Product: 3-phase energy meter test system with 0.005% accuracy class Model: YC1893R       High Accuracy class three-phase energy meter test system for substandard meter verification at the Beijing Metrology Centre. Model : YC1893R Overall accuracy: 0.01% / Reference standard: Zera Com 3003       0.01 class high accuracy three-phase meter test system supports IR46 standards, with Radian RX33 standard meter for testing of substandard meters. Model: YC1893R             0.005% accuracy class three-phase energy meter test system for SOUTH CHINA NATIONAL CENTER OF METROLOGY (SCM) Model: YC1893R Reference standard: Zera COM5003              

Manufacturing projects in famous meter factories a glance of Landis+Gyr plant at Melbourne, Australia     EDMI's customised calibration racks support two different calibration methods, pulsing method / gating method Model: YC1893D Accuracy class: 0.05% / 0.02% Reference standard: Radian RD3x / RX3         High current 200A three-phase energy meter test bench project for JNC, Korea Model: YC1893D, 200A / 0.05% Anacle 's three phase meter test bench with ICTs, 24-position with accuracy of 0.02% Model: YC1893D