MV Protective Relay

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“ For over 4 years working with Acrel, they have continuously demonstrated excellent technical ability while ensuring superior customer service. Their collaborative approach and real time flexibility in adapting to changing conditions has contributed to the success of many project goals. "

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Philippines
Cloud Platform for Power IoT is a synchronous integrated solution from energy meter installation to web interactive interface that can see the benefits of features with the first click mouse. Very convenient and fast. I will be with this product for a long time.

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Vietnam

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What’s the Function of Acrel AM5 Series MV Protective Relay?

AM5 series microcomputer protection devices are applicable to the user substation in which the input voltage is 35kv or above.

AM5 can be used to protect and control the user substation and is widely used in Power Industry, Water conservancy industry, Traffic Industry, Oil industry, Chemical industry, Coal Industry, Metallurgical Industry, and so on.

Measure

RMS Current values
RMS Voltage values
Frequency
Power Factor
RMS Active Power

Protect

Feeder protection
Transformer protection
Motor protection
Capacitor protection
Voltage protection
Bus tie protection

Control

Remote control
Local control
Programmable switchgear interlocking

Communication

2 RS485
1 RS232
1 GPS

Specification

What’s the Specification of Acrel AM5 Series MV Protective Relay?

Model Function	AM5-F	AM5-T	AM5-M	AM5-C	AM5-B	AM5-U	AM5-BL
Three-stag over current protection	√	√
Two-stag over current protection			√	√	√
Two-stag over zero-current1 protection	√	√	√	√
Two-stag over zero-current2 protection	√	√
Inverse time over current protection	√	√	√	√	√
Inverse time over zero-current protection		√
Overload alarm	√	√	√
Overload trip	√	√	√
Control circuit fault alarm	√	√	√	√	√
Under voltage alarm	√	√	√
Under voltage trip	√
Over voltage alarm	√	√
Over zero-voltage alarm	√	√
PT disconnection alarm	√	√
FC atresia	√
Negative sequence overcurrent protection(two-stage/Inverse time)	√
Self-produced over the zero-voltage alarm		√
Non-electric trip/alarm	√
I bus/II bus Under voltage alarm				√
I bus/II bus Self-produced over the zero-voltage alarm				√
I bus/II bus Over voltage alarm				√
I bus/II bus Over zero-voltage alarm				√
I bus/II bus PT disconnection alarm				√

Parameter

What’s the Parameter of Acrel AM5 Series MV Protective Relay?

Hardware Resources	AM5-F	AM5-T	AM5-M	AM5-C	AM5-B	AM5-U	AM5-BL
Input Current	8	8	8	8	8	0	0
Input Voltage	4	4	4	4	4	4	0
DI	16	16	16	16	16	16	0
DO	10	10	10	10	10	10	0

Parameters	Rated input	Range	accuracy	power consumption
Power supply	AC220V/DC220V, DC110V,DC48V	Rared input×（1±20%）	—–	≤10W ( DC )
Voltage input	AC 100V/100/√3V	1～120V	±0.5%	≤0.5VA single phase
Current input	AC 5A /1A	0.04In～15In	±0.5%	≤0.5VA single phase
Frequence	50Hz	45～55Hz	±0.1Hz	—–
DI	AC220V/DC220V, DC110V, DC48V	Rared input×（1±20%）	—–	≤1W（DC220V）single DI

Typical Topology

How does Acrel AM5 Series MV Protective Relay work?

Installation

How to Install the Acrel AM5 Series MV Protective Relay?

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