Acrel AM5 Middle Voltage Protection Relay
Acrel AM5 Middle Voltage Protection Relay
General
AM5 series microcomputer protection device integrates protection and control. It is suitable for user terminal substations (substations) with voltage levels of 35kV and below, and can realize comprehensive protection and control of user substations. Application fields cover power, water conservancy, transportation, petroleum, chemical, coal, metallurgy and other industries.
Diagram of AM5 Middle Voltage Protection Relay
Function of AM5 Middle Voltage Protection Relay
Wiring
Front Panel
Dimension
Network
Benefits of AM5 Middle Voltage Protection Relay
• A complete set of protection, related to the application
• 8 current input, 4 voltage input, 16 DI, 10 DO
• Auxiliary power supply adapts with AC220V, DC220V, DC110V, AC110V
• 2 RS485 serial communication, IEC 60870-5-101, IEC60870-5-103 and Modbus-RTU
• 1 RS232 for user update
• 1 GPS for GPS timing
• More than 200 sequence of event records, more than 400 system logs, and more than 10 seconds tripping context records
• Powerful graphic programmable Logic
FAQ of AM5 Middle Voltage Protection Relay
The protection device can set the CT and PT ratio through the fixed value menu. For example, the current transformer is 75/5 and the voltage transformer is 10/0.1, then the CT ratio is set to 15 and the PT ratio is set to 100.
AM5-F is suitable for line protection and transformer protection.No need to distinguish between models when placing orders
The voltage wiring mode and current wiring mode of the protection device can be set independently, and can be connected freely.
If the circuit breaker is equipped with anti-trip, the device does not must be equipped with anti-trip; if the circuit
breaker does not have anti-trip, you need to configure the AM5-FT anti-trip module. (If DC48V is selected as the
operating power supply, the anti-trip box is not optional, and the circuit breaker must be equipped with anti-trip
function; if you choose AC anti-trip, please note that AC and DC general anti-tripping)
Before ordering, it is recommended to consult related engineers, select the appropriate protection model,
and then fill in the corresponding selection table, and place the order after confirmation by the engineers.
Acrel AM5 Middle Voltage Protection Relay
Technical Parameters
| AM5 | 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 |
| Frequency | 50Hz | 45～55Hz | ±0.1Hz | —– |
| DI | AC220V/DC220V, DC110V, DC48V | Rared input×（1±20%） | —– | ≤1W（DC220V）single DI |
1. Manual for Acrel AM5 Middle Voltage Protection Relay
2. Installation and Use for Acrel AM5 Middle Voltage Protection Relay
3. Debugging Software for Acrel AM5 Middle Voltage Protection Relay
