Jiangsu Acrel Electrical Manufacturing Co., LTD.
Jiangsu Acrel Electrical Manufacturing Co., LTD.

Application of Acrel Wireless Temperature Measuring Product in Substation in the Netherlands

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 devices. This technology is to install the temperature sensor with a 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 the electrical temperature monitoring of a regional system.

This article introduces a wireless monitoring system used in substations in the Netherlands.


1. Current Status

For many years, due to the limitations of the technical level, although infrared thermometer, infrared imager, temperature sensing cable, traditional point-type temperature measurement system have been used to solve the above problems, can not achieve the switch cabinet such as circuit breaker, the connection point and contact temperature measurement. At present, domestic electric temperature measurement mainly uses infrared point measuring instruments and optical fiber temperature measuring instruments. However, the online method cannot solve the problem of high-voltage insulation, so the electrical equipment with limited space, such as the contact of high-voltage switch, basically operates in a completely unmonitored state, with major safety hazards.


2. Project Overview

DigIoT is an electric IoT company, providing electrical IoT services for local substations. Customer consults  Acrel wireless temperature measurement products, attending through Acrel ATE wireless temperature sensor and ATC receiver, the cable in the switchgear temperature detection, And through RS485 communication data transmission to the back platform for real-time monitoring, can effectively prevent overheating failure, affect the normal operation of equipment, avoid safety risks.


3. Wireless temperature monitoring device 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.

3.1  Wireless temperature measurement scheme

1. Temperature measuring instrument

1)Temperature sensor

a. Battery-powered wireless temperature sensor

sensor installed in a heating area that collects temperature and transmits it wirelessly.

There are currently four type wireless temperature sensors:

Name

Shape

Parameter instruction

Installation

ATE100M

ATE100M Energy Management Solutions

32.4*32.4*16mm( length*width*high, aperture);-50℃~+125℃, Accuracy Class ±1℃, battery-powered, life ≥5 years; 470MHz, open distance 150m.

Magnetic absorption fixation

ATE100

ATE100 Energy Management System

62.4*32.4*16mm,φ13.5mm( length*width*high, aperture);-50℃~+125℃, Accuracy class ±1℃, battery-powered, life ≥5 years; 470MHz, open distance 150m.

Bolt fixing

ATE200

ATE200 Energy Management

35*35*17mm, L=330mm ( length*width*high, belt);-50℃~+125℃, Accuracy Class ±1℃, battery-powered, life ≥5 years; 470MHz, open distance 150m.

strap binding


ATE100P

ATE100P Power Quality Monitoring Devices

62.4*32.4*16mm,φ13.5mm( length*width*high, aperture);-50℃~+125℃, Accuracy class ±0.5℃, battery-powered, life ≥5 years; 470MHz, open distance 150m. IP68

Outdoor bolt fixing

ATE200P

ATE200P Power Monitoring Unit

35*35*17mm, L=330mm ( length*width*high, belt);-50℃~+125℃, Accuracy Class ±0.5℃, battery-powered, life ≥5 years; 470MHz, open distance 150m.IP68

Outdoor strap binding



b. CT induction radio wireless temperature sensor

sensor installed at a high current such as a circuit breaker contact, a bus bar, a cable lap contact, to collect temperature and transmit it wirelessly.

There are currently two wireless temperature sensors:

Name

Shape

Parameter Instruction

Installation

ATE300

ATE300 Power Quality Monitoring Devices

73*33.5*16 mm( length*width*high); CT induction of electricity, starting current ≥5 A;470MHz, open distance 150 m.

Tie-band fixed alloy sheet and powered

ATE400

ATE400 Energy Management

25.82*20.42*12.8mm( length*width*high);-50℃~+125℃, Accuracy class ±1℃, CT induction of electricity powered, starting current ≥5 A;470MHz, open distance 150 m.

Alloy sheet fixed and Powered

2) Receiving /displaying unit

a.  Receiving unit

Name

Shape

Parameter Instruction

Installation

ATC450-C

ATC450-C Power Monitor

65*45*28mm( length*width*high); DC24V power supply; RS485 interface along the way to receive 60 ATE400 wireless temperature sensor temperatures; Modbus protocol.

35mm DIN rail

screws fixed

(φ4,36mm)

ATC600

ATC600 Power Monitoring Device

90*90*38mm( length*width*high);AC/DC 85~265V Power;1 channel uplink RS485,Can receive 240 ATE wireless temperature sensor include ATE100/ATE100M/ATE200/ATE400/ATE100P/ATE200P;

Modbus protocol。

35mm DIN rail


b. Displaying Unit

Name

Shape

Parameter Instruction

Installation

ARTM-Pn

ARTM-PN Power Sensor

Panel 96*96*17 mm, depth 65 mm, opening 92*92 mm, AC85-265V or DC100-300V power supply; along with the way line RS485 interface; can receive 60 ATE wireless temperature sensors includeATE100M/100/200/400/ATE100P/ATE200P (matching ATC450); Modbus protocol.

Embedded panel installation

ASD300/320

ASD300/320 Power Monitoring Device

Panel 237.5*177.5*15.3 mm, depth 67 mm, opening 220*165 mm; AC85-265V or DC100-300V power supply; line RS485 interface along the way; can receive 12 wireless temperature sensors including ATE100M/100/200/400(matching ATC450); Modbus protocol.

Embedded panel installation

ATP007

ATP007 Power Monitor

Panel 226.5*163*6 mm, depth 70 mm; hole 215*152 mm; DC24V power supply; 1 channel uplink RS485 interface, 1 channel downlink RS485; can receive 4 ATC450-C or 1 ATC600.


Embedded panel installation

ARTM-8

Artm-8 Power Monitoring Unit

Panel 96*96*12.5 mm, depth 70 mm, hole 88*88 mm; along the way RS485 interface, can be connected to 8 channels of a temperature sensor;

Modbus Agreement

Embedded panel installation

Acrel-2000T/A

ACREL-2000T/A Power Quality Monitoring Devices

The size of the cabinet is 480/420/200mm; DC220V power supply; 1 channel uplink RS485, the downlink is one Ethernet port, and 4 sets ATC450-C or 1 set ATC600 can be received

Wall-mounted

Acrel-2000T/B

ACREL-2000T/B Energy Management.jpg

The size of the cabinet is 480/420/200mm; Hardware: memory 4G, hard disk 128G, Ethernet port; displayer:12 inches, resolution 800/600; operating system: Windows 7; database system: Microsoft SQL Server 2008 R2;

I/O interfaces: GLAN×2, USB×4, COM×6;

Optional Web platform/ APP server

Wall-mounted


3.2 Structure

Application of Acrel Wireless Temperature Measuring Product in Substation in Netherlands


3.3 Typical Solution

Application of Acrel Wireless Temperature Measuring Product in Substation in Netherlands


4. Typical Application

Application of Acrel Wireless Temperature Measuring Product in Substation in Netherlands

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