描述
ABB的REF615是一款中压馈线保护与控制继电器，属于ABB Relion®系列，专为中压配电系统（如10kV至35kV电网）的馈线、母线分段及小型变压器提供全面的保护、控制、测量和通信功能。以下是其详细产品信息：
一、产品概述
型号：REF615（含衍生型号如REF615F、REF615S等，功能略有差异）
系列：ABB Relion®600系列
核心定位：
集成保护、控制、测量、监视和通信功能，适用于中压配电系统的馈线自动化解决方案。
支持IEC 61850标准，可无缝接入智能电网和分布式能源系统（如光伏、风电）。
典型应用场景：
城市电网10kV/20kV馈线保护。
工业园区、商业建筑的中压配电系统。
新能源发电（如光伏电站）的并网保护。
二、硬件规格
1.保护功能
过电流保护：
速断保护：瞬时切除严重短路故障（动作时间≤20ms）。
定时限过流：按固定时间延时动作（如0.2s、0.5s）。
反时限过流：支持IEC 60255-3标准曲线（非常反时限、极端反时限等），适应不同负载特性。
方向性保护：
通过功率方向元件区分故障方向，适用于环网供电或多电源系统。
接地故障保护：
零序电流保护：检测单相接地故障（灵敏度可调至0.02A）。
小电流接地选线：支持中性点不接地或经消弧线圈接地系统的故障选线。
重合闸功能：
支持一次或多次自动重合闸，可配置检无压、检同期条件。
其他保护：
低电压/过电压保护：监测电压异常（如电压崩溃或过压）。
频率保护：检测系统频率偏离（如49.5Hz-50.5Hz范围外动作）。
2.测量功能
电气参数监测：
三相电压、电流有效值（精度±0.2%）。
有功功率、无功功率、功率因数（精度±0.5%）。
频率（精度±0.01Hz）、电能计量（kWh/kVarh）。
谐波分析：
监测2-50次谐波含量，支持THD（总谐波畸变率）计算，适用于非线性负载监测。
3.输入/输出（I/O）配置
数字输入（DI）：
12路可编程DI，支持24V DC或110V DC/AC（无源触点）。
典型用途：断路器位置、手车位置、保护动作信号、闭锁信号等。
数字输出（DO）：
8路可编程DO，额定250V DC/125V AC，5A（继电器触点）。
典型用途：跳闸、合闸、报警、信号复归、重合闸启动等。
模拟输入（AI）：
4路可编程AI，支持0-20mA/4-20mA或0-10V信号。
典型用途：温度、压力、流量等非电气量监测（需外接传感器）。
模拟输出（AO）：
2路可编程AO，输出0-20mA/4-20mA信号。
典型用途：有功功率、电流等参数远传至DCS或SCADA系统。
ABB’s REF615 is a medium-voltage feeder protection and control relay,which belongs to the ABB Relion®series and is designed to provide comprehensive protection,control,measurement and communication functions for feeders,busbar sections and small transformers in medium-voltage distribution systems(such as 10kV to 35kV power grids).The following is its detailed product information:
I.Product Overview
Model:REF615(including derivative models such as REF615F,REF615S,etc.,with slightly different functions)
Series:ABB Relion®600 Series
Core Positioning:
Integrated protection,control,measurement,monitoring and communication functions,suitable for feeder automation solutions for medium-voltage distribution systems.
Supports IEC 61850 standards and can be seamlessly connected to smart grids and distributed energy systems(such as photovoltaics and wind power).
Typical application scenarios:
10kV/20kV feeder protection for urban power grids.
Medium-voltage distribution systems in industrial parks and commercial buildings.
Grid-connected protection for new energy power generation(such as photovoltaic power stations).
II.Hardware Specifications
1.Protection Function
Overcurrent Protection:
Quick-break protection:Instantaneously cut off severe short-circuit faults(action time≤20ms).
Time-limited overcurrent:Delayed action according to a fixed time(such as 0.2s,0.5s).
Inverse time-limited overcurrent:Supports IEC 60255-3 standard curves(very inverse time limit,extremely inverse time limit,etc.),adapting to different load characteristics.
Directional protection:
Distinguish the fault direction through the power direction element,suitable for ring network power supply or multi-power supply system.
Ground fault protection:
Zero-sequence current protection:Detect single-phase ground fault(sensitivity can be adjusted to 0.02A).
Low current grounding line selection:Supports fault line selection for neutral point ungrounded or arc suppression coil grounding system.
Reclosing function:
Supports one or more automatic reclosing,and can be configured with no-voltage and synchronization conditions.
Other protection:
Low voltage/overvoltage protection:Monitor voltage abnormalities(such as voltage collapse or overvoltage).
Frequency protection:Detect system frequency deviation(such as action outside the range of 49.5Hz-50.5Hz).
2.Measurement function
Electrical parameter monitoring:
Three-phase voltage and current effective value(accuracy±0.2%).
Active power,reactive power,power factor(accuracy±0.5%).
Frequency(accuracy±0.01Hz),energy measurement(kWh/kVarh).
Harmonic analysis:
Monitor 2-50th harmonic content,support THD(total harmonic distortion)calculation,suitable for non-linear load monitoring.
3.Input/output(I/O)configuration
Digital input(DI):
12 programmable DI,support 24V DC or 110V DC/AC(passive contact).
Typical uses:circuit breaker position,trolley position,protection action signal,lockout signal,etc.
Digital output(DO):
8 programmable DO,rated 250V DC/125V AC,5A(relay contact).
Typical uses:tripping,closing,alarm,signal reset,reclosing start,etc.
Analog input(AI):
4-way programmable AI,supporting 0-20mA/4-20mA or 0-10V signals.
Typical uses:non-electrical quantity monitoring such as temperature,pressure,flow(external sensor required).
Analog output(AO):
2-way programmable AO,output 0-20mA/4-20mA signal.
Typical uses:remote transmission of active power,current and other parameters to DCS or SCADA system.
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