Acrel AM4 Middle Voltage Protective Relays In Power Systems

Name: AM4 Middle Voltage Protective Relays In Power Systems
Brand: Jiangsu Acrel Micro-grid Research & Development Institute

AM4 middle voltage protective relays in power systems integrates 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 Middle Voltage Protective Relays In Power Systems

Technical Datasheet

Rated Parameter	Power Supply	Power supply: AC/DC220V, Or AC/DC110V, oR DC48V (Reference the wiring diagram)
		Range: Power supply x (1±20%）
		Maximum power consumption: ≤10W（DC）
	Rated Voltage	Rated Voltage: AC100V
		Range: 1-120V
		Accuracy: ±0.5%
		Power Consumption: ≤0.5VA (Single phase)
		Overload capacity: 1.2 times rated voltage for continuous work; 2 times for 10 seconds
	Rated Current	Rated current: AC 5A/1A (See the device wiring diagram)
		Range: 0.04In~15In
		Power consumption: ≤0.5VA (Single phase)
		Overcapacity: 2 times rated current for continuous work; 40 times for 1 second
	Frequency	Rated frequency: 50Hz or 60 Hz
		Range: 45~55Hz
		Accuracy: ±0.1Hz
	Digital Input	Rated Voltage: AC/DC220V, AC/DC110V, DC48V (Similar to power supply)
		Voltage Range: Rated voltage x (1±20%）
		Power Consumption: ≤1W(DC220V) (Single channel)
	Digital Output	Mechanical life: ≥10000 times
		Switching capacity: ≥1000W, L/R=40ms
		On current: continuous≥5A short time (200ms)≥30A
		Interrupting capacity: ≥30W, L/R=40ms
Normal Working Conditions	Ambient temperature: -10℃~+55℃
	Device storage and transport allow the ambient temperature to be -25℃~+70℃
	Relative humidity: 5%~95% (The product does
	Altitude: ≤4000m

Features of AM4 Middle Voltage Protective Relays In Power Systems

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.

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.

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.