ACREL AM4 MIDDLE VOLTAGE PROTECTIVE RELAYS IN POWER SYSTEMS
ACREL AM4 MIDDLE VOLTAGE PROTECTIVE RELAYS IN POWER SYSTEMS
AM4 middle voltage protective relay coordination in power systemintegrates protection and control, and is suitable for user terminal substations (substations) with a voltage level of 35kV and below, and can realize the protection and control of user substations.It adopts advanced, mature and reliable protection principles and algorithms, with strong anti-interference performance, high reliability, flexible protection implementation, and redundant design for communication. The device has 12 channels of switch value acquisition and 5 channels of relay output, and can cooperate with Acrel-2000Z power monitoring software to realize an unattended end-user substation power distribution automation system.
Specification of AM4 Mains Voltage Relays In Power Systems
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Rated Parameter |
Power Supply |
Power supply: AC/DC220V, Or AC/DC110V, oR DC48V (Reference the wiring diagram) |
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Range: Power supply x (1±20%） |
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Maximum power consumption: ≤10W（DC） |
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Rated Voltage |
Rated Voltage: AC100V |
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Range: 1-120V |
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Accuracy: ±0.5% |
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Power Consumption: ≤0.5VA (Single phase) |
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Overload capacity: 1.2 times rated voltage for continuous work; 2 times for 10 seconds |
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Rated Current |
Rated current: AC 5A/1A (See the device wiring diagram) |
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Range: 0.04In~15In |
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Power consumption: ≤0.5VA (Single phase) |
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Overcapacity: 2 times rated current for continuous work; 40 times for 1 second |
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Frequency |
Rated frequency: 50Hz or 60 Hz |
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Range: 45~55Hz |
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Accuracy: ±0.1Hz |
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Digital Input |
Rated Voltage: AC/DC220V, AC/DC110V, DC48V (Similar to power supply) |
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Voltage Range: Rated voltage x (1±20%） |
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Power Consumption: ≤1W(DC220V) (Single channel) |
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Digital Output |
Mechanical life: ≥10000 times |
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Switching capacity: ≥1000W, L/R=40ms |
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On current: continuous≥5A short time (200ms)≥30A |
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Interrupting capacity: ≥30W, L/R=40ms |
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Normal Working Conditions |
Ambient temperature: -10℃~+55℃ |
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Device storage and transport allow the ambient temperature to be -25℃~+70℃ |
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Relative humidity: 5%~95% (The product does |
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Altitude: ≤4000m |
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Features of AM4 Middle Voltage Protective Relays In Power Systems
01
Abundant interface resources: 4 AC current channels, 4 AC voltage channels; 12 digital input channels (AC and DC), 5 digital output channels; 1 RS485 communication interface, 1 RS232 maintenance port.
02
Transparency: Real-time recording of AC volume, digital input volume, binary output volume, and the status of all protection modules; record the action behavior, action time, and wave recording data of each component inside the protection.
03
High-reliability design: It has passed 6 electromagnetic compatibility testing certifications, and the electrical fast transient burst, electrostatic discharge, and surge anti-interference performance have all reached the IV level standard.
If you want to know more about primary protection in power system, please visit our website.
As one of power meter manufacturers, we will do our best to meet all the needs of customers.
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