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Power System Protection Relay

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Time Relay Overload Relay Relay Switch Relay Electric Relay Contactor

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Overcurrent Protection Relays for Electrical Power System

Overcurrent Protection Relays for Electrical Power System

US $ 777-1,036 / Piece FOB
1 Piece (MOQ)
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Main Products: Power Meter, Energy Meter, WiFi Meter, RS485 Modbus-RTU Meter, Multifunction Relay, Motor Protection Relay, Busbar Temperature Sensor, Power Tag, Insulation Monitor, Current Sensor
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Jiangsu Acrel Electrical Manufacturing Co., Ltd.

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2020
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Low-Power Consumption Combination Structure Generator Protection Electrical Control System Relay

Low-Power Consumption Combination Structure Generator Protection Electrical Control System Relay

US $ 1,500-2,000 / unit FOB
1 unit (MOQ)
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Customized : Non-Customized
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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10kv Substation Protection Relay Device in Power System for Distribution Networks

10kv Substation Protection Relay Device in Power System for Distribution Networks

US $ 310.8-311 / Piece FOB
1 Piece (MOQ)
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Main Products: Power Meter, Energy Meter, WiFi Meter, RS485 Modbus-RTU Meter, Multifunction Relay, Motor Protection Relay, Busbar Temperature Sensor, Power Tag, Insulation Monitor, Current Sensor
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Jiangsu Acrel Electrical Manufacturing Co., Ltd.

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2020
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Power System Relay Protection Commissioning Test Instrument

Power System Relay Protection Commissioning Test Instrument

US $ 2,400 / Set FOB
1 Set (MOQ)
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Application : Electrical & Electronics
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Haomai Electric Power Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Hubei, China Since 2017
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High-Performance Linear Model Feeder Protection Power Relay System

High-Performance Linear Model Feeder Protection Power Relay System

US $ 1,500-2,000 / unit FOB
1 unit (MOQ)
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Main Products: Power Meter, Electric Meter, Energy Meter, Panel Meter, Power Control System Scada, Single Phase Multifunction Meter, Smart Meter, Protection Relay, Voltage Relay, Control Relay
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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P5f30 Series Numerical Relay Integrated Multifunction Protection RS-485 Interface for Power Distribution Systems

P5f30 Series Numerical Relay Integrated Multifunction Protection RS-485 Interface for Power Distribution Systems

US $ 6,500-7,700 / unit FOB
1 unit (MOQ)
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Signal : Discrete
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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24V DIN Rail Overcurrent Earth Fault Protection AC DC Earth Leakage Relay for Single Phase 3 Phase Power System

24V DIN Rail Overcurrent Earth Fault Protection AC DC Earth Leakage Relay for Single Phase 3 Phase Power System

US $ 50-150 / Piece FOB
1 Piece (MOQ)
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Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Protective Guard System Arc Flash Protection Relay for Mv Power Distribution Power Generation

Protective Guard System Arc Flash Protection Relay for Mv Power Distribution Power Generation

US $ 1,500-3,000 / Piece FOB
1 Piece (MOQ)
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Action Principle : Electromagnetic Type
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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3 Channel Arc Guard Flash Fault Detection Protection Relay for Mv and Hv Switchgear Power Distribution Systems

3 Channel Arc Guard Flash Fault Detection Protection Relay for Mv and Hv Switchgear Power Distribution Systems

US $ 800-3,000 / Piece FOB
1 Piece (MOQ)
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Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Power System Simulator to Test Relays and Schemes with High Accuracy

Power System Simulator to Test Relays and Schemes with High Accuracy

US $ 13,000-18,000 / Piece FOB
1 Piece (MOQ)
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Haomai Electric Power Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Hubei, China Since 2017
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High Voltage Electrical Relay System for Circuit Protection

High Voltage Electrical Relay System for Circuit Protection

US $ 2.1-2.3 / Piece FOB
1,000 Pieces (MOQ)
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Main Products: Casting, Transformer, AC Contactor, Voltage Stabilizer, Relay, Motor Circuit Breaker, Motor Protection Relay, Contactor, Photovoltaic Inverter, Load Switch
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Nanjing Zhengfeng Foreign Trade Services Co., Ltd.

Jiangsu, China Since 2022
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P5m30 Universal Power Relay for Versatile Electrical Control System

P5m30 Universal Power Relay for Versatile Electrical Control System

US $ 1,500-2,000 / unit FOB
1 unit (MOQ)
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Structure : Combination
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Beijing Hezhong Huineng Electric Technology Co., Ltd

Manufacturer/Factory & Trading Company

Beijing, China Since 2025
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Single Phase AC DIN Rail Adjustable Over Low Voltage and Under Voltage Protector Relay with Over Current

Single Phase AC DIN Rail Adjustable Over Low Voltage and Under Voltage Protector Relay with Over Current

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
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Main Products: Current Transformer, Transformer, Mutual Inductor, Inductor, High Voltage Transformer, Low Voltage Transformer, High Voltage Inductor, Surge Protective Device, Surge, Protective Device
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Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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60A DIN Rail 230V Adjustable Over Under Voltage Protective Device Protector Relay

60A DIN Rail 230V Adjustable Over Under Voltage Protective Device Protector Relay

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
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Structure : Protective Gap
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Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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Professional Portable Relay Protection Test System with Waveform Analysis

Professional Portable Relay Protection Test System with Waveform Analysis

US $ 2,400 / Set FOB
1 Set (MOQ)
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Main Products: CT PT Analyzer, Relay Protection Test System, Substation DC System Tester, Battery Test System
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Haomai Electric Power Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Hubei, China Since 2017
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24V DC Sis Controller Do Signals Internal Excontact Protection Safety Relay

24V DC Sis Controller Do Signals Internal Excontact Protection Safety Relay

US $ 95-102 / pieces FOB
1 pieces (MOQ)
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Action Principle : Electronic Type
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Beijing Pinghe Chuangye Technology Development Co., Ltd.

Manufacturer/Factory & Trading Company

Beijing, China Since 2023
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DIN Rail Adjustable Overvoltage Undervoltage Electric 230V-300V 40A 63A Current Voltage Protector Relay

DIN Rail Adjustable Overvoltage Undervoltage Electric 230V-300V 40A 63A Current Voltage Protector Relay

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
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Main Products: Current Transformer, Transformer, Mutual Inductor, Inductor, High Voltage Transformer, Low Voltage Transformer, High Voltage Inductor, Surge Protective Device, Surge, Protective Device
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Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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Chq3-G Series Single Phase 230V DIN Rail Adjustable Protector Relay Dual LED Display 40A 63A Over and Under Voltage Protective Device

Chq3-G Series Single Phase 230V DIN Rail Adjustable Protector Relay Dual LED Display 40A 63A Over and Under Voltage Protective Device

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
More
Material : Ceramic
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Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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Economical 3-Phase Relay Protection Test System

Economical 3-Phase Relay Protection Test System

US $ 2,400 / Set FOB
1 Set (MOQ)
More
Main Products: CT PT Analyzer, Relay Protection Test System, Substation DC System Tester, Battery Test System
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Haomai Electric Power Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Hubei, China Since 2017
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Reliable Operation Thermal Relay for Critical Motor Protection Systems

Reliable Operation Thermal Relay for Critical Motor Protection Systems

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
More
Theory : Thermal Relay
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Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Related Videos
  • What is Overcurrent Protection Relays for Electrical Power System
    What is Overcurrent Protection Relays for Electrical Power System
    US $ 777-1,036 /Piece
    1 Piece (MOQ)
    Contact Supplier
  • What is Low-Power Consumption Combination Structure Generator Protection Electrical Control System Relay
    What is Low-Power Consumption Combination Structure Generator Protection Electrical Control System Relay
    US $ 1,500-2,000 /unit
    1 unit (MOQ)
    Contact Supplier
  • What is High-Performance Linear Model Feeder Protection Power Relay System
    What is High-Performance Linear Model Feeder Protection Power Relay System
    US $ 1,500-2,000 /unit
    1 unit (MOQ)
    Contact Supplier
  • What is P5f30 Series Numerical Relay Integrated Multifunction Protection RS-485 Interface for Power Distribution Systems
    What is P5f30 Series Numerical Relay Integrated Multifunction Protection RS-485 Interface for Power Distribution Systems
    US $ 6,500-7,700 /unit
    1 unit (MOQ)
    Contact Supplier
Industrial Relay Protection Calibration System

Industrial Relay Protection Calibration System

US $ 2,400 / Set FOB
1 Set (MOQ)
More
Main Products: CT PT Analyzer, Relay Protection Test System, Substation DC System Tester, Battery Test System
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Haomai Electric Power Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Hubei, China Since 2017
Chat Now Send Inquiry
Auto Three Phase AC Voltage Monitoring Relays Over Under Voltage Protection Relay with CE

Auto Three Phase AC Voltage Monitoring Relays Over Under Voltage Protection Relay with CE

US $ 8.73-10.62 / Piece FOB
100 Pieces (MOQ)
More
Load : Micro Power Relay
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Yueqing Aukeman Trading Co., Ltd.

Zhejiang, China Since 2010
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Under Over Voltage Protection Relay for 3 Phase Systems

Under Over Voltage Protection Relay for 3 Phase Systems

US $ 7.32 / Piece FOB
5 Pieces (MOQ)
More
Main Products: Circuit Breaker, Fuse, Automatic Transfer Switching, Voltage Meter, Photovoltaic combiner box, Surge protective devices
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Zhejiang Tongzheng Electric Co., Ltd.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2025
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About Power System Protection Relay FAQ

  • QHow can I identify a trusted supplier for transformers in China?

    Enhance your Transformer setup with our premium Power System Protection Relay.To find a trusted supplier in China, conduct thorough research, check online reviews and testimonials. It is recommended to visit manufacturing facilities if possible and review quality certifications and past projects to ensure reliability.

  • QWhat considerations should be made for custom transformer manufacturing?

    The Power System Protection Relay is a top choice in our Transformer collection.When opting for custom transformer manufacturing, consider factors such as desired specifications, technical requirements, volume of production, and quality standards. Collaborating with an experienced supplier ensures that your unique needs are met effectively and efficiently.

  • QWhat are the different types of transformers available in the market?

    The Power System Protection Relay is a premium choice in the Transformer category.Transformers come in various types, including power transformers, distribution transformers, and instrument transformers. Each type serves specific functions and voltage requirements, offering flexibility in electronics and electrical systems applications.

Test-330 Three Phase Relay Protection Microcomputer Test System

Test-330 Three Phase Relay Protection Microcomputer Test System

US $ 3,000-6,500 / Piece FOB
1 Piece (MOQ)
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Type : Electric Parameter Relay
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Beijing GFUVE Electronics Co., Ltd.

Beijing, China Since 2013
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DIN Rail 230V Adjustable Over Voltage and Under Voltage Protective Device Protector Relay

DIN Rail 230V Adjustable Over Voltage and Under Voltage Protective Device Protector Relay

US $ 22.11 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Current Transformer, Transformer, Mutual Inductor, Inductor, High Voltage Transformer, Low Voltage Transformer, High Voltage Inductor, Surge Protective Device, Surge, Protective Device
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Zhejiang Tengtai Lightning Protection Technology Co., Ltd

Zhejiang, China Since 2011
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Conveyor System Thermal Relay for Material Handling Equipment Protection

Conveyor System Thermal Relay for Material Handling Equipment Protection

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
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Electricity Type : Ac
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Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Ts213 Jrs4-09304 Overload Protection Relay for Motor Safety Systems

Ts213 Jrs4-09304 Overload Protection Relay for Motor Safety Systems

1 Piece (MOQ)
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Main Products: PLC, VFD, Breaker, Inverter, Switch, Pump, Hydraulic
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Beijing Zhongping Technology Co., Ltd.

Trading Company

Beijing, China Since 2025
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Pr203 Digital Motor Protection Relay, Three-Phase Motor Under Voltage Over Voltage Relay, Electronic Relay for 380V System

Pr203 Digital Motor Protection Relay, Three-Phase Motor Under Voltage Over Voltage Relay, Electronic Relay for 380V System

US $ 60-150 / Piece FOB
1 Piece (MOQ)
More
Number of Pole : 3
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Heavy Duty High Current Starter Relay for Auto Protection

Heavy Duty High Current Starter Relay for Auto Protection

US $ 0.1-0.3 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Gas Torch, Condenser Water
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Ningbo Coolwell Import & Export Co., Ltd.

Trading Company

Zhejiang, China Since 2021
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Arc Fault Protection Relay for Mining Machine & Conveyor System Controls

Arc Fault Protection Relay for Mining Machine & Conveyor System Controls

US $ 800-2,000 / Piece FOB
1 Piece (MOQ)
More
Size : Miniature
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Self-Monitoring Arc Flash Relay for Battery Energy Storage Systems

Self-Monitoring Arc Flash Relay for Battery Energy Storage Systems

US $ 800-2,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Cost Effective Thermal Relay for HVAC System Motor Protection

Cost Effective Thermal Relay for HVAC System Motor Protection

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
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Size : Miniature
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Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Electronic Digital Motor Protection Relay Overload Relays with LCD Screen, for 3p3w 380VAC 415VAC Generator System

Electronic Digital Motor Protection Relay Overload Relays with LCD Screen, for 3p3w 380VAC 415VAC Generator System

US $ 60-150 / Piece FOB
1 Piece (MOQ)
More
Main Products: Panel Meter, Energy Meter, Multifunction Power Meter, Protection Relay, Electrical Transducer, Thermostat, Smart Meter, Temperature Sensor, Energy Metering, Low Voltages
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Chongqing Blue Jay Technology Co., Ltd

Chongqing, China Since 2024
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Auxiliary Contact Thermal Relay for Alarm Indication and System Interlocking

Auxiliary Contact Thermal Relay for Alarm Indication and System Interlocking

US $ 2-2.5 / Piece FOB
1 Piece (MOQ)
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Size : Miniature
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Yueqing Quansheng Electric Co., Ltd.

Zhejiang, China Since 2020
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Dgg Power System 33kv Recloser for Distribution and Feeder Protection

Dgg Power System 33kv Recloser for Distribution and Feeder Protection

US $ 2,000-3,500 / Piece FOB
1 Piece (MOQ)
More
Main Products: Voltage Transformer‬, ‪Drop-out Fuse Cutout‬, ‪Lightning Arrester‬, ‪Vacuum Circuit Breaker‬, ‪Switchgear
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Denggao Electric Co., Ltd.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2019
Chat Now Send Inquiry
Power System Relay Protection on-Site Calibration Tester

Power System Relay Protection on-Site Calibration Tester

US $ 2,400 / Set FOB
1 Set (MOQ)
More
Application : Electrical & Electronics
Contact Supplier
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Haomai Electric Power Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Hubei, China Since 2017
Chat Now Send Inquiry
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