描述
本特利内华达3500/53电子超速检测系统
3500/53模块提供高度可靠、快速响应和冗余的转速表系统，专为超速保护应用而设计。
主要特性和功能：
超速保护：其主要目的是检测机器转速何时超过安全运行极限，并启动跳闸（停机）以防止灾难性损坏。这对于蒸汽轮机、燃气轮机和压缩机等机械至关重要。
高可靠性和快速响应：专为关键应用而设计，在这些应用中，快速可靠的超速事件响应至关重要。其设计符合严格的行业标准，例如API（美国石油学会）标准670和612，这些标准对涡轮机械的保护至关重要。
冗余转速表系统：3500/53模块可组合成2选2或2选3（推荐）表决系统。这种冗余设计可防止误跳闸（单个传感器或模块发生故障时），并确保在发生真正的超速事件时（即使单个组件故障）跳闸，从而显著提升系统可靠性。
转速输入信号：
每个模块接收来自接近探头（例如Bently Nevada 3300或7200系列）或磁式传感器的单个传感器信号。
这些传感器提供脉冲信号（每转一次或每转多次），模块将其转换为精确的数字计时测量值。
支持宽频率输入范围（例如高达20 kHz），最大满量程转速范围高达99,999 RPM。
可配置的报警和设定点：
提供可配置的警报和危险（超速）速度设定点。
提供四个快速响应报警继电器输出，可用于触发外部报警、启动停机或激活其他安全机制。
诊断：包含先进的自诊断功能，以确保模块及其相关输入信号的运行完整性。前面板LED指示灯指示模块状态（正常、发送/接收、报警）。
与3500机架集成：
该模块安装在Bently Nevada 3500监控机架的标准全高插槽中。
为了最大限度地提高系统可靠性，需要使用带有冗余电源的3500机架。
输出能力：除了继电器输出外，它通常还提供与满量程转速范围成比例的4-20 mA记录仪输出，用于趋势分析。
功耗：约8.0瓦（典型值）。
工作温度：专为工业环境设计，通常为-30°C至+65°C(-22°F至+149°F)。
Bently Nevada 3500/53 Electronic Overspeed Detection System
The 3500/53 module provides a highly reliable,fast-response,and redundant tachometer system specifically designed for overspeed protection applications.
Key Features and Functions:
Overspeed Protection:Its primary purpose is to detect when a machine’s rotational speed exceeds a safe operating limit and to initiate a trip(shutdown)to prevent catastrophic damage.This is crucial for machinery like steam turbines,gas turbines,and compressors.
High Reliability and Fast Response:Engineered for critical applications where a rapid and dependable response to overspeed events is paramount.It’s designed to meet stringent industry standards,such as API(American Petroleum Institute)Standards 670 and 612,which are critical for turbomachinery protection.
Redundant Tachometer System:The 3500/53 modules can be combined to form a 2-out-of-2 or a 2-out-of-3(recommended)voting system.This redundancy significantly enhances the system’s reliability by preventing false trips(if one sensor or module fails)and ensuring that a trip occurs when a true overspeed event happens(even if one component is faulty).
Speed Input Signals:
Accepts a single transducer signal per module from either proximity probes(like Bently Nevada 3300 or 7200 series)or magnetic pickups.
These sensors provide pulse signals(once-per-turn or multiple events per revolution)which the module converts into precise digital timing measurements.
Supports a wide frequency input range(e.g.,up to 20 kHz)and a maximum full-scale speed range of up to 99,999 RPM.
Configurable Alarms and Setpoints:
Provides configurable Alert and Danger(Overspeed)setpoints for speed.
Offers four fast-response alarm relay outputs that can be used to trigger external alarms,initiate shutdowns,or activate other safety mechanisms.
Diagnostics:Includes advanced self-diagnostic capabilities to ensure the operational integrity of the module and its associated input signals.Front panel LEDs indicate module status(OK,TX/RX,alarms).
Integration with 3500 Rack:
The module installs into a standard full-height slot in a Bently Nevada 3500 monitoring rack.
It requires the use of a 3500 rack with redundant power supplies for maximum system reliability.
Output Capabilities:Besides relays,it typically provides 4-20 mA recorder outputs proportional to the full-scale RPM range for trending.
Power Consumption:Approximately 8.0 Watts(typical).
Operating Temperature:Designed for industrial environments,typically-30°C to+65°C(-22°F to+149°F).
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
