Transmission & Distribution Protection

Transmission & Distribution Protection

T&D Protection & Coordination Analysis Software

ETAP StarZ 距离继电器保护配合软件为消除误动作,保护设备误操作和无配合提供深刻理解
distance relay characteristics
距离继电器配合软件提供直观的逻辑性方法用于 R-X 参数特性分析,其中特性和功能包括易于操作的图形化用户界面,准确的保护设备建模,创建继电器和设备设置报告,以及内嵌式电力系统分析模块,所有这些都是集成式,基于规则的设计。

距离继电器配合软件主要特性

  • 直观的距离继电器特性配合
  • 易于操作的图像化用户界面
  • 精确地实际距离继电器建模
  • 消除误动作
  • 剑气误操作和误配合
  • 用于设置确认和保护配合的图形工具
  • 用于验证保护设备设置和组合逻辑的状态曲线
  • Simulate protection based on Unbalanced Faults
  • Create and Manage StarView TCCs in StarZ mode
  • 保护设备动作序列
  • 详细的距离继电器建模
  • 大量的继电器模型库
Distance Relay Characteristic Plot

距离继电器配合软件功能

  • 仿真实际模拟和数字输入输出
  • 详细的保护控制系统(P&C)图形建模
  • 支持批量设置和继电器组合逻辑
  • 继电器间数据通讯
  • 就地 & 遥控后备保护
  • 断路器故障仿真
  • 时间距离特性曲线(TDC)
  • I/O vs. 故障位置和阻抗画图
  • 移动故障,单个故障,潮流(负荷遇阻)
  • 保护设备动作序列
  • 在CT,VT,和CB间插入故障
  • 支持单相系统和轨道应用
  • Normalized TCC based on StarZ Single-fault report
  • Vendor specific transformer/bus/line differential relay
protective device sequence of operation event viewer

Single / Sliding Fault & Line Loadability Analyses

  • Single fault analysis
  • Sliding fault analysis
  • Unbalanced load flow & transmission line loadability analysis
  • Multiple fault locations & resistances analysis in one-click
  • Series compensated line evaluation with MOV action
  • Mutually coupled lines
Sliding Fault Simulation on ETAP One-line Diagram

State Plots & Device Setting Reports

  • Time state plots
  • Time Distance Characteristic plots (TDC)
  • Time Distance-Resistance Characteristic plots (TDRC)
  • Plot status of I/Os vs. a range of fault locations & resistances
  • Detailed device setting reports
  • Export relay settings to xml & Excel formats
Interactive Result Viewer

Detailed Modeling of Protection & Control system

All the details of substation protection and control system (P&C) such as bus configuration, CTs and PTs, CBs, Switches can be graphically modeled. Not only this is for the sake of graphical representation, but also fault can be applied on any connector between power system primary components. This allows to catch blind spots and deep setting errors in the protection system. 

To reduce the wiring among relays and instrument transformers, ETAP allows protection relays to be connected remotely to CTs and PTs through a newly enhanced remote connector element.

Transmission system one-line diagram showing a double-bus configuration
StarZ simulates and evaluates model-specific protection settings and functions similar to the actual relay. This means that in ETAP, the user configures the same settings and protection element outputs as that of the actual relay.

ETAP emulates realistic performance of distance relays considering choice of polarization, dynamic expansion, and many other factors.
dynamic expansion of mho characteristic plot

Videos

How to perform protection & coordination studies for traction systems with ETAP

How to perform protection & coordination studies for traction systems with ETAP's StarZ module

ETAP Train Power Simulation - eTraX™ software includes validated, user-friendly and flexible software tools for designing, analyzing and managing AC and DC railway infrastructure. Learn how eTraX integrates with ETAP protection & coordination software (StarZ) to offer insights into line protection, protective relay performance & evaluation, troubleshooting false trips, and system-wide protective device operation.

Integrated Stability & Protection Sequence of Operation

Integrated Stability & Protection Sequence of Operation

Many protection functions such as over/under frequency, out-of-step, generator loss of excitation are set based on power system dynamic characteristics. These protection functions were conventionally set with the assumption that, system dynamics are predictable using simplistic and aggregated models. Higher penetration of distributed energy resources (DERs) has made power system dynamics considerably more complex to predict through conventional approaches. ETAP offers a new solution to perform unified protection and transient stability study to accurately capture interactions between system dynamics and protection system. This solution allows protection engineers and network planners to 1- tune protection settings to act properly during system dynamics, 2- design and test remedial protection schemes, 3- evaluate all protection functions such as out-of-step, overcurrent and generator loss of excitation protection function and 4- perform grid code studies that require evaluating DER performance along with its protection system.

StarZ - Protection & Coordination Analysis

StarZ - Protection & Coordination Analysis

Per North American Electric Reliability Corporation (NERC), 28% of protective relay mis-operations are due to incorrect settings and logics. These errors mainly stem from the existing relay testing procedures that do not provide a proper mechanism to easily and effectively evaluate the performance of all settings, logics, and the protection system as a whole. ETAP StarZ™ is a new solution to minimize protective relay setting errors and reduce the time required to perform protection and coordination studies.

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