Name: GE IS220PTURH1B Turbine‑Specific Primary Trip I/O Pack - MASSIVE
Brand: General Electric

Description

GE IS220PTURH1B Turbine‑Specific Primary Trip I/O Pack

Product Overview

IS220PTURH1B is a turbine‑specific primary trip I/O pack for GE Speedtronic Mark VIe / Mark VIeS turbine control systems. Equipped with an on‑board BPPC processor, it handles high‑speed turbine‑critical signals including magnetic‑pickup speed inputs, emergency trip loops, flame detection, generator auto‑synchronization and breaker control. It interfaces with field terminal boards such as TTURH1C, TRPAH1A and STURHxA, and communicates with the main UCSB controller over redundant IONet Ethernet. This unit supports both simplex and TMR triple‑modular‑redundant configurations for safety‑critical turbine protection. ControlST V04.07 or higher software version is required for operation. Original OEM manufacturing is discontinued; it is supplied as spare‑parts for existing power‑generation turbine assets.

IS220PTURH1B

Typical Applications

Gas‑turbine & steam‑turbine primary safety control: Collect shaft‑speed signals, execute overspeed detection and primary trip logic
Generator synchronization: Auto‑synchronization and main‑breaker closing control for turbo‑generator units
Flame detection & combustion monitoring: Interfaces with flame‑sensor circuits for gas‑turbine flame‑loss protection
Combined‑cycle power plant: Critical I/O processing for combined‑cycle unit control and safety interlock loops
Mark VIeS SIS safety‑instrumented system: Deployed in TMR architecture to satisfy SIL‑rated turbine‑protection requirements
Oil‑gas turbo‑machinery: Turbine‑driven compressor safety and control for refinery and pipeline sites
Brown‑field maintenance & retrofit: Spare‑part replacement and system expansion for installed Mark VIe cabinets

Specifications & Technical Parameters

Item	Specification
Model	IS220PTURH1B (variant: IS220PTURH1BF)
System Compatibility	Mark VIe, Mark VIeS; Requires ControlST V04.07 or above
On‑board Processor	BPPC embedded processor for local signal processing & trip logic
Speed Inputs	4 channels passive magnetic pickup (MPU) speed sensor inputs
Field Connector	DC‑62 pin connector, mates with TTURH1C / TRPAH1A / STUR terminal boards
Communication Ports	2 × 10/100 Mbps RJ45 redundant IONet Ethernet
Power Supply	24 VDC (18‑30 VDC operating range), typical 350 mA@24VDC
Galvanic Isolation	2500 V field‑to‑backplane isolation
Redundancy Mode	Supports simplex and TMR triple‑modular redundant deployment
Operating Temperature	‑30 ℃ ~ +65 ℃
Storage Temperature	‑40 ℃ ~ +85 ℃
Humidity	5 %‑95 % RH, non‑condensing
Cooling	Natural convection fan‑less design
Indicators	PWR, ATTN, LINK status LED indicators; IR local service port
Certifications	CE, UL, Class I Div. 2; SIL‑3 capable within Mark VIeS system architecture
Weight	Approx. 0.75 kg
Mounting	Direct plug‑on installation onto matched terminal board
Protection Class	IP20 (cabinet‑mount only)

Key Features & Benefits

Local high‑speed signal processing: On‑board BPPC processor processes speed, trip and flame‑monitoring signals locally, lowers control‑loop latency for fast turbine‑trip response.
Four‑channel MPU speed acquisition: Supports multi‑sensor shaft‑speed measurement, suitable for redundant overspeed‑protection design.
Multi‑function turbine‑oriented I/O: Integrates speed measurement, emergency trip handling, flame detection and generator auto‑synchronization functions in one single pack, reduces cabinet component count.
Redundant dual‑IONet Ethernet: Dual independent Ethernet links enhance communication reliability between I/O pack and UCSB main controller.
High‑voltage galvanic isolation: 2500 V isolation between field side and control backplane, improves anti‑interference performance in harsh turbine‑hall environments.
Simplex / TMR flexible deployment: Supports single‑module or triple‑modular‑redundant setup to meet different safety‑level project requirements.
Plug‑on pack‑style mechanical design: Directly mounts onto dedicated terminal boards, simple installation and quick field replacement during overhaul.
Comprehensive front‑panel diagnostics: LED status indicators and IR service port facilitate on‑site commissioning and fault troubleshooting.