Description

The​​ABB REXRTOH SYHNC100-NIB-23​​is a high-precision automatic synchronizer and sync-check relay designed for generator paralleling applications.This advanced module ensures safe and reliable synchronization of generators to the grid or other power sources,preventing equipment damage and system instability through precise frequency,voltage,and phase angle matching.

Application Scenarios

In a 50MW hydroelectric power plant,the​​ABB REXRTOH SYHNC100-NIB-23​​controlled the synchronization of two generators during peak demand periods.The module’s advanced algorithms enabled seamless generator paralleling with closing errors of less than 2 degrees phase angle and 0.1Hz frequency difference,eliminating mechanical stress on the turbine-generator set.During a 12-month operation period,the system achieved 100%successful synchronizations without any protection trips due to sync errors.

Parameter

Main Parameters

Value/Description

​​Product Model​​

​​REXRTOH SYHNC100-NIB-23​​

​​Manufacturer​​

ABB

​​Product Category​​

Synchronization Relay

​​Voltage Inputs​​

2×3-phase voltage inputs(100-240V AC)

​​Frequency Range​​

45-65Hz

​​Synchronization Accuracy​​

±1°phase angle,±0.05Hz frequency

​​Closing Time​​

Programmable 10-500ms

​​Communication​​

RS-485,MODBUS RTU

​​Output Relays​​

5 changeover contacts

​​Operating Temperature​​

-25°C to+70°C

​​Power Supply​​

24-48V DC/100-240V AC

​​Protection Degree​​

IP50(panel mounted)

​​Standards​​

IEC 60255,IEEE C37.90

Technical Principles and Innovative Values

Innovation Point 1:The​​ABB REXRTOH SYHNC100-NIB-23​​employs advanced slip frequency calculation algorithms that predict the optimal closing point with exceptional accuracy.This predictive capability ensures breaker closure within±1°of phase coincidence,significantly reducing mechanical stress on generators compared to traditional sync relays with±5-10°accuracy.

Innovation Point 2:Adaptive dead-time compensation automatically adjusts for breaker closing time variations,maintaining synchronization accuracy regardless of breaker condition or environmental factors.This intelligent feature eliminates the need for manual recalibration and ensures consistent performance throughout the equipment lifecycle.

Innovation Point 3:Dual-setpoint synchronization capability allows simultaneous monitoring of two independent synchronization scenarios,enabling complex paralleling operations such as generator-to-generator synchronization while maintaining generator-to-grid synchronization readiness.

Application Cases and Industry Value

Case Study:Industrial Cogeneration Facility

A large chemical plant with 35MW cogeneration capacity implemented the​​ABB REXRTOH SYHNC100-NIB-23​​across three gas turbine generators.The system reduced synchronization time from 15 minutes to under 2 minutes per generator,enabling faster response to grid demand changes.The precise synchronization minimized power quality disturbances,reducing voltage dips by 70%during generator paralleling operations.Annual maintenance costs decreased by approximately$120,000 due to reduced mechanical stress on turbine-generator couplings.

Related Product Combination Solutions

​​REG216​​:Generator protection relay for complete system integration

​​REC615​​:Feeder protection relay for grid connection points

​​COM600​​:Communication gateway for system monitoring

​​RET615​​:Transformer protection relay

​​REL670​​:Line differential protection for grid stability

Installation,Maintenance,and Full-Cycle Support

Installation and Maintenance:The​​ABB REXRTOH SYHNC100-NIB-23​​mounts in standard relay panels with straightforward voltage and control wiring connections.Installation requires precise CT and VT ratio configuration to ensure accurate measurements.Initial setup involves programming synchronization parameters specific to the generator and breaker characteristics.

Routine maintenance includes semi-annual verification of synchronization accuracy using primary injection testing equipment.The module’s comprehensive event recording capability facilitates performance analysis and troubleshooting.Self-diagnostic functions monitor internal circuitry and provide early warning of potential issues.

We provide complete technical support for the​​ABB REXRTOH SYHNC100-NIB-23​​,including installation supervision,configuration assistance,and performance verification.Our inventory includes genuine modules with full factory testing and documentation.

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