10kv Substation Protection Relay Device in Power System for Distribution Networks

10kv Substation Protection Relay Device in Power System for Distribution NetworksAM4 series protection relay is applicable to the user substation which the input voltage is 35kv and below. We adopt mature technology solutions to ensure the quality of the AM relay. The AM relay is widely used in substations, subsection posts and ring main units for office buildings, commercial buildings, communication buildings, mine buildings, and so on. Product ParametersFunctionCurrent TypeVoltage TypeAM3SE-IAM3SE-UCurrent collection50Voltage collection33Switch value collection1111Relay output55Protection FunctionOvercurrent (three stages, inverse time limit)√ I01 zero sequence overcurrent (three stages, inverse time limit)√ I02 zero sequence overcurrent (three stages, inverse time limit)√ Negative sequence overcurrent (two stages, inverse time limit)√ Reclosing√ Overload trip/alarm√ Low-frequency load shedding√ After accelerating overcurrent√ Accelerated overcurrent after zero sequences (I01, I02)√ Overvoltage trip√ Low voltage trip√ Zero sequence overvoltage trip (self-produced/external)√ FC blocking√ Inspection status lockout√ Control failure alarm√ Non-electricity trip/alarm√ Low voltage alarm√√Overvoltage alarm√√Zero sequence overvoltage alarm (self-produced/external)√√PT disconnection alarm√√Communication protocolModbus-RTU√√IEC60870-5-103√√Auxiliary functionIRIG-B time synchronization√√Fault recording√   Dimension   Wiring Installation  FAQQ: 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.Photo On SiteRelated 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 channel1 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, etc.)√√√√√Synchronization function××××√Fault recorder√√√√√Electrical parameter measurementU, I, Fr, P, Q, PF, Ep, Eq, EsCompany Profile  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1