Acrel Synchronization Protection Relay

Acrel Synchronization Protection RelayAM5 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 being widely used in Power Industry, Water conservancy industry, Traffic Industry, Oil industry, Chemical industry, Coal Industry, Metallurgical Industry, and so on. Product ParametersFunctionSpecification-F-C-M-T-B-U1-DBHardwareResourceCurrent acquisition8888606Voltage acquisition4444646Switch Collection16161616161616Relay Output10101010101010ProtectionThree-stage overcurrent protection√  √   Three-stage overcurrent with direction blocking√      Two-stage overcurrent protection √√ √ √Zero-sequence overcurrent protection√√√√   Inverse time overcurrent protection√√√√√  Overload protection√ √√   Control circuit disconnection alarm√√√√√ √Under-voltage protection  √  √alarm Lack of voltage protection√      PT disconnection alarm√√√√√√√Three-phase one-time reclosing√      Low-frequency load shedding√      High-frequency protection√      After accelerating overcurrent√   √ √Overvoltage protection√√√  √alarm√alarmLocked-rotor protection       Undervoltage protection √     Unbalanced voltage protection √√    Unbalanced current protection √√    Phase error protection  √    Zero sequence overvoltage protection√√√  √alarm Non-electric protection√√√√   Starting over time  √    Reverse power protection√      Thermal overload protection  √    Negative sequence overcurrent(two stages / inverse time limit)  √    Incoming line / busbar    √ √Busbar charging protection    √  FC blocking√√√√   Second harmonic blocking√√√√   Intermittent ground protection√√     Overhaul status lockout√√√√√√√Communication protocolModBus-RTU√√√√√√√IEC60870-5-103√√√√√√√AccessibilityFault recorder√√√√√ √IRIG-B time synchronization√√√√√√√  Dimension DisplayWiring NetworkingFAQQ: How to set the CT and PT ratio of the protection device?A: 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.Q: For AM5, if you want to place single circuit protection and transformer protection, how to distinguish the model?A: AM5-F is suitable for line protection and transformer protection.No need to distinguish between models when placing ordersQ: When the voltage is a three-phase three-wire system, does the current have to be connected with 2CT?A: The voltage wiring mode and current wiring mode of the protection device can be set independently, and can be connected freely.Q: How to confirm whether the anti-trip function is configured?A: If the circuit breaker is equipped with anti-trip, the device does not must be equipped with anti-trip; if the circuitbreaker does not have anti-trip, you need to configure the AM5-FT anti-trip module. (If DC48V is selected as theoperating power supply, the anti-trip box is not optional, and the circuit breaker must be equipped with anti-tripfunction; if you choose AC anti-trip, please note that AC and DC general anti-tripping)Q: How to purchase suitable protection devices?A: 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.Related ProductsSpecificationAM2SEAM3SEAM4AM5AM5SEHardwareProtect Current3 channels3 channels3 channels3 channels3 channelsMeasure Current×××3 channels3 channelszero-sequence current1 channel2 channels1 channel2 channels2 channelsMeasure Voltage3 channels3 channels4 channels4 channels4 channels+ backup 2 channelsSwitch Value Input8 channels11 channels12 channels16 channels20 channelsSwitch Value Output5 channels5 channels5 channels10 channels10 channelsRS485 Interface1 channels1 channel1 channel2 channels2 channelsRS232 Interface××111USB×√CE×optional 2GPS time synchronization×√×√√4-20mA×optional 2Anti-jumpOptional external anti-hop modulebuilt-inoperation circuit×√ProtectionMain transformer differential protection××××√Main transformer backup protection××××√Three-stage overcurrentWith direction with a voltage blocking×××√√Three-stage overcurrentwith directional locking×√√√√Three-stage overcurrent√√√√√Zero sequence overcurrent protection√√√√√Overvoltage protection√√√√√Low voltage protection√√√√√Zero sequence overvoltage protection√√√√√High-power motor differential protection(>2000KW)××××√High Voltage Motor Protection×××√√Capacitor Protection×××√√Overcurrent after acceleration√√√√√Low-frequency load shedding√√√√√Grid-connected reverse power protection×××√√PT disconnection alarm√√√√√Fault alarm√√√√√FC blocking√√√√√Incoming line of high voltage single busbar system/Mother-joint prepared self-injection×××√√Low-voltage standby self-switching(400V)×××√×PT monitoring and parallel functions××××√PT monitoring functions√√√√√Non-electrical protection(temperature, gas, et