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Description：

There are two versions offered in the ProTech 203 Overspeed Protection series by Woodward: de-energize-to-trip and energize-to-trip. Model 8200-203 is the 120 Vac/dc input model of the de-energize-to-trip versions. This model consists of three separate, identical speed-sensing units, each with its own power supply. These units sense prime mover speed through magnetic pickups and perform individual speed calculations, which are then used in a two-out-of-three hardware vote.

Model 8200-203 has a rich feature set, including remote reset, LED performance indicators, built-in self-test, an alarm output, and a key lock.

The LED performance indicators are located on the front panel of the units, alongside a touchpad and digital display. Together, the LEDs and digital display offer a quick, clear overview of the current functional status of the 8200-203 system.

Specification：

Frequently asked questions

Q1: What is the input power requirement of the WOODWARD 8200-203 Overspeed Protection System?

A: The 8200-203 operates with an input power supply of 120 V AC/DC, providing reliable power for critical turbine and engine protection applications.

Q2: How many monitoring channels does the 8200-203 provide?

A: The 8200-203 system features 3 independent channels, allowing redundant speed monitoring and enhanced protection reliability.

Q3: What is the input voltage range of the WOODWARD 8200-203?

A: The 8200-203 module accepts input signals from 1.0 Vrms up to 30 Vrms maximum, making it compatible with a wide range of speed sensor inputs.

Q4: What is the primary function of the 8200-203 Overspeed Protection System?

A: Its primary function is to detect overspeed conditions and initiate protective actions, helping prevent damage to turbines, engines, compressors, and other rotating equipment.

Product Applications

Thermal/Hydropower Plants: The feedstock compressors in these plants are mostly driven by turbines. 8200-203 ensures the absolute safety of core power equipment on flammable and explosive high-pressure gas process lines.

Metallurgical and Steel Plants: Protects turbine units utilizing waste heat from blast furnace gas for power generation, preventing overspeeding caused by drastic fluctuations in blast furnace process gases.

Petrochemical and Refinery Plants: The feedstock compressors in these plants are mostly driven by turbines. 8200-203 ensures the absolute safety of core power equipment on flammable and explosive high-pressure gas process lines.