Acrel Meter Projects in Africa

Project Sample #1 - Power Monitoring System in Ndola Stadium, Zambia

Abstract: The stadium weak electricity system consists of 11 subsystems. Among them, as one of the stadium's weak electricity system, the function of the power monitoring system is to operate usually as a stand-alone machine, which is linked with the fire protection system and the smart lighting system to ensure the stability and safety of the stadium during the event.

Keywords: System integration；Intelligent power meter；Power monitoring system；Electrical safety

(1) Project Overview

Aid Zambia’s Ndola Stadium is a national stadium that can accommodate 40,000 people. The stadium is located next to the A3 highway in the suburbs of Ndola. It covers a total area of 203,300 square meters, with a total construction area of 452,080 square meters, 4 floors above the ground, and a building height of 55.80 meters. It has a total of 27 low-voltage power distribution cabinets and 116 power distribution circuits.

(2) Main Uses of Residual Current Relay

The Acrel-2000 power monitoring system was used to aid the Ndola Stadium in Zambia. The system involves a total of 112 circuits, and the meters installed on the power distribution cabinet are ACR series and PZ series multifunctional power meters.

According to the design intent and actual situation, the power monitoring system has a three-layer structure. The field equipment layer is composed of multi-function meters installed on the low-voltage power distribution cabinet, and data is uploaded via the RS485 bus. The communication management layer is composed of communication servers, photoelectric converters, and industrial Ethernet switches in the communication cabinet, and its function is to connect the field device layer and the station control management layer. The station control management layer equipment (monitoring host, UPS power supply, display, etc.) are installed in the communication collection box of the monitoring room.

The electrical parameter collection of the incoming loop of the low-voltage power distribution system adopts the ACR330ELH power meter, which can measure all conventional power parameters, such as three-phase voltage, current, active power, reactive power, power factor, frequency, active energy, and it can monitor various power grid quality parameters such as voltage and current 2-31 harmonic components, current and voltage unbalance degree.This instrument has 4 photoelectric isolation switch input contacts, these contacts can cooperate with the intelligent circuit breaker to realize the remote signal switch monitoring of the circuit.This series of network power meters are mainly used in substation automation, distribution network automation, residential power monitoring, industrial automation, energy management systems, and intelligent buildings.

The output circuit adopts the PZ80L series power meter, which mainly completes the measurement of the three-phase current and the detection of the switch signal. The circuit design for performances and shops uses the ACR120EL series of meters, based on the detection of three-phase current and switching signals, plus all conventional power parameter measurement and energy metering functions.

(3) Related Products

(4) Photos on Site

(5) Summary

In the application of today's power distribution facilities, power distribution safety is of paramount importance. The Acrel-2000 power monitoring system described in this article is used in Ndola Stadium. It can realize the real-time monitoring of the power consumption of the power supply and distribution circuit of the power distribution station, not only can display the power consumption of the circuit, but also has the network communication function, and can form a power monitoring system with the communication management machine and computer.

The system analyzes and processes the collected data and displays the operating status of each power distribution loop in real time.It has a pop-up alarm dialog box, voice prompt, SMS alarm light, and generates various electric energy reports, analysis curves, graphics, etc. It is convenient for remote meter reading, analysis and research of electric energy. The system is safe, reliable and stable in operation, and provides a true and reliable basis for large-scale public buildings to solve electricity problems.

Project Sample #2 - Wireless Temperature Sensor in South Africa

Abstract: With the development power industry,the requirements for the safety and reliability of equipment are getting higher and higher. In this situation, ACREL wireless temperature monitoring system is designed for high voltage device. This technology is to install the temperature sensor with built-in battery or temperature sensor by current sensing and wireless transmitter module at each temperature measurement point.

The sensor periodically sends the temperature measurement data wireless to the receiving unit, and the receiving unit can be connected to the network to send the data to the master station, thereby realizing electrical temperature monitoring of a regional system.

Keywords: Wireless temperature sensor; wireless temperature monitoring system; 470Mhz wireless temperature sensor.

(1) Project Overview

Chauvin is located in ANTONY Cedex，France. The project is mainly used in substation in the substation in South Africa. The related products models are 2 PCS ATC450-C, dozens of wireless temperature sensors including model ATE400 and ATE100.

(2) Product Introduction

Acrel on-line temperature measurement device is suitable for the temperature detection of high and low voltage switches, circuit breaker contacts, high voltage cable middle heads, low voltage and high current equipment, to prevent contact caused by oxidation, loosening and other factors during operation Excessive contact resistance and heat generation become a safety hazard, timely, continuous and accurate reflection of equipment operating status, and equipment safety.

(3) Wireless Temperature Monitoring Solution