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

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

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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