Why Monitor Switchgear?
- Overheating
Loose Connections Can Become Critical Failures
Cable terminals, breaker contacts and busbar joints can develop abnormal temperatures that are difficult to identify through periodic inspection.
Monitor temperature continuously and receive early warnings before overheating causes outages or equipment damage. - Partial Discharge
Insulation Degradation Can Develop Before Failure
Partial discharge may occur inside MV switchgear long before a visible fault or outage.
Detect AE / TEV / UHF partial discharge signals to identify insulation deterioration at an early stage. - Humidity
Humidity Accelerates Insulation Aging
High humidity and condensation inside switchgear can accelerate insulation degradation and increase flashover risk.
Monitor temperature and humidity continuously to identify abnormal cabinet conditions early.
What Can You Monitor? & Acrel Value
01. Switchgear Temperature
Real time temperature monitoring
Monitor:
- Busbar joints
- Circuit breaker contacts
- Cable terminals
- Transformer connections
Value:
→ Detect abnormal temperature before failure
Prevent Overheating
Detect overheating at critical electrical connections
ATE400 monitors critical connection points including busbars, breaker contacts and cable joints.
→ Early warning
→ Reduced overheating risk
→ Predictive maintenance
CE RED
470/433/868-923MHz
Frequency 15s
CT-powered
-50~125℃
02. Partial Discharge
Detect insulation degradation before breakdown
Monitor:
- AE Acoustic Emission
- TEV Transient Earth Voltage
- UHF Ultra High Frequency
Value:
→ Identify partial discharge at an early stage
Detect Insulation Degradation
Partial Discharge Monitoring
APD300 detects AE / TEV / UHF signals to identify abnormal insulation conditions.
→ Early fault detection
→ Insulation health assessment
→ Condition-based maintenance
Power Supply：DC12-36V / Battery
AE TEV UHF
Noise Temperature Humidity
Modbus-RTU / Lora
03. Temperature & Humidity Sensor
Monitor the internal environment of switchgear
Monitor:
- Temperature
- Relative humidity
- Abnormal environmental conditions
Value:
→ Reduce insulation aging and flashover risks
Control Cabinet Environment
Temperature & Humidity Monitoring
AHE100 monitors the internal environment of switchgear and distribution rooms.
→ Detect abnormal humidity
→ Reduce insulation aging
→ Improve equipment reliability
Temperature
Humidity
Power Supply: DC12-36V / Battery
04. Local HMI & Alarm
See critical switchgear conditions in real time
- Real-time data display
- Alarm management
- Data logging
- Trend analysis
- Modbus RTU/TCP integration
Value:
→ Detect abnormal conditions early and support faster response
Centralize & Integrate
Local HMI + Modbus Communication
Collect monitoring data in one place and integrate with existing SCADA / EMS / automation systems.
→ Real-time monitoring
→ Alarm management
→ Historical data
→ Modbus RTU/TCP
up to 240 Sensors
Alarm
Data Logging
Modbus-RTU, Modbus-TCP
Built to Fit Your Switchgear
Switchgear Condition Monitoring System
The system is designed to integrate with existing electrical infrastructure and provide real-time monitoring of critical switchgear conditions — from field sensing to centralized monitoring.
Compatible with
Your Existing Electrical Infrastructure
Designed to work with common MV/HV switchgear systems and existing communication infrastructure, making it easier to integrate condition monitoring into new or existing electrical installations.
- MV / HV Switchgear
- 3.3–110 kV*
- Existing Protection Systems
- SCADA / EMS
- Modbus RTU / TCP
- Wired / Wireless Networks
→ Integrate monitoring without replacing your existing electrical infrastructure.
Suitable for
Critical Electrical Assets
Monitor the electrical connections and equipment where abnormal temperature, insulation deterioration or environmental conditions can lead to equipment failure.
- Indoor Switchgear
- RMU
- Distribution Panels
- Substations
- Transformer Connections
- Cable & Busbar Connections
- Circuit Breaker Contaction
→ Focus monitoring on the critical points that matter most to equipment reliability.
Monitoring Capabilities
Real-Time Condition Monitoring
Monitor multiple switchgear conditions through sensors, communication devices and centralized HMI solutions. Configure the system according to the parameters and monitoring points required for your project.
- Temperature
- Partial Discharge
- Humidity
- Alarm & Event Detection
- Data Logging & Trending
- Centralized Monitoring
→ Detect abnormal conditions earlier and support predictive maintenance.
How the Switchgear Monitoring System Works
Monitor critical switchgear conditions from field sensors to centralized monitoring systems.
Project Case Study
Online Condition Monitoring for Critical Switchgear
Project Location: [Saudi Arabia]
Industry: [Oil & Gas]
Equipment: [7 MV Substation = 42 Switchgear]
Monitoring Points: [1104 Temperature + 184 PD + 7 HMI]
Monitoring Parameters: Temperature / Partial Discharge
Acrel Solution: ATE400 + APD300 + ATU
Customer Challenge
The customer required continuous visibility into critical switchgear conditions and wanted to reduce dependence on periodic manual inspection.
Acrel Solution
Acrel deployed multi-dimensional condition monitoring covering critical connection temperature, partial discharge, and cabinet environmental conditions.
Result
The system provides centralized monitoring and alarm information, helping the maintenance team identify abnormal conditions earlier and make maintenance decisions based on actual equipment condition.
Why Choose Acrel?
- Complete Monitoring Solution
Temperature + Partial Discharge + Humidity + HMI in one system. - Hardware + System Integration
Sensors, gateways, HMI and monitoring platform from one solution provider. - Retrofit-Friendly
Wireless sensing options reduce wiring and installation complexity for existing switchgear. - Project-Based Engineering
We support customized system architecture according to switchgear type, voltage level, monitoring points and communication requirements. - Global Project Experience
Solutions deployed across industrial plants, substations, data centers, infrastructure and utilities.
Frequently Asked Questions
Yes. Wireless temperature monitoring allows retrofit installation with minimal wiring modifications.
The system can monitor switchgear temperature, partial discharge, humidity and other equipment conditions depending on the selected configuration.
Yes. The monitoring system supports communication interfaces such as RS485 / Modbus RTU and Modbus TCP depending on the selected devices.
Yes. We can recommend sensors, communication devices and monitoring architecture according to your switchgear type, voltage level, number of cabinets and monitoring points.
Yes. The solution is suitable for MV switchgear, RMUs, substations and industrial distribution systems.
Yes. Send us your switchgear quantity, voltage level and monitoring requirements for a recommended configuration and quotation.
Get Your Switchgear Monitoring Solution
Tell us your switchgear voltage, cabinet quantity and monitoring requirements. Our engineers will recommend a suitable system configuration for your project.
What We Can Provide
✓ System architecture
✓ Product selection
✓ Technical specifications
✓ Communication solution
✓ Project quotation
