General instruction

        SGE5000 Series Microcomputer Relay ProtectionDevice is appropriate for 110KV and less 110KV substation and power station.Base on rich experience of development and research the microcomputer relayprotection device, Xuantong Electric Technology Co., Ltd adopts latest computerand network communication technology to release the new generationmicrocomputer     relay protection deviceintegrated protection, measurement and control     function. The hard-core of SGE5000 is usedhigh performance industrial class microprocessor, possesses advantages asstrong anti-interference and stable operation. It can be install on switchcabinet directly and concentrated group panel installation also available.

Features

²  Adoptshigh-performance controller with DSP function released by Microchip company ofUSA, super-speed and large capacity nonvolatile memory, make the device possessstrong data processing ability.

²  Englishinterface, display clearly and visually, with indicated lights to show allkinds of work condition.

²  Highstandard design of electromagnetic compatibility, anti-seismic and dustsealing, fit for operating in rugged environment.

²  Multipleovercurrent curve, provides user perfect protection function.

²  Protectionfunction flexible configuration, each protection can control for in service andout of service.

²  High-precisionof measurement circuit, reach to 16bit AD effect, better than 0.2 class.

²  Possesses3 class watchdog, external hardware watchdog, CPU hardware timer watchdog andsoftware watchdog, omni monitor the hardware and software of device, avoidsystem halted.

²  Providesisolated RS485 communication interface, convenient to realize integrationautomation.

²  7circuit switch value, fully satisfied user demands.

²  Possessespower metering function, can real time measuring active and reactive power.

²  Adoptsanti-interference measure such as transformer isolation, optoelectronic isolation and tvs pipe protectionfor the analog input, switch value input, power supply input and communicationinterface

²  Adoptslow power design to lessen the energy and resource consumption.

²  Highprecision element and fine craft ensure the accuracy, reliability and usinglife.

Availableto decentralized installation on switch cabinet in situ protection,concentrated group panel also available.

Specification

²Environment temperature:  -20℃- 60℃

²Storagetemperature: -40℃- 85℃

²  Relative humidity: 5% - 95%

²Atmospheric pressure: 70KPa – 110KPa

²  Altitude height: no more than 3500m

²  AC voltage: 100V/200V

²  AC current: 5A or 1A.

²  Frequency: 50Hz /60Hz.

²Powersupply:  AC220(110)V,±20%,DC220 (110) V, ±20%, DC48V±20%, DC24V,±20%

²  Power consumption: power no more than 5w, AC input circuitno more than 0.5VA/circuit.

²Measurement scope: voltage 0.01Un - 2Un, current 0.1In - 20In, zero sequence current0.01A - 10A

²Measureaccuracy: voltage<0.5%, current<0.5%, zero sequence current<0.005A

²Protection deference: current operate value:no more than ±5%, time-delay   operate value: no more than ±40ms or 3%, quick break action time: ≤ 35ms (more than1.2time fixed value), event record resolution: ≤ 1ms.

²  Exitcapacity: AC250V/8A, DC30V/8A

²  Communicationindex: standard MODBUS protocol

²  RS485communication method, reliable communication distance is 2km.