Products

ImpTC 2oo3

  • ImpTC main function is to stop the supply of oil to the protection components in case of a turbine protection system activation and at the same time it discharges oil from the pipeline.

 

  • In case of activation of 1 of the 3 channels of the protection system, either due to a measurement error, failure of protection devices or failure of the trip block, an alarm occurs but not the trip block protection activation (turbine remain in operation).

 

  • Four pressure switches are installed on the trip block, through which the condition of the trip block is monitored. The pressure switches are connected to the turbine controller.

Key features

  • SIMPLE AND ROBUST DESIGN

The trip block ImpTC can be applied in a flexible way to support different installations. The trip block will be automatically tested during operation as it requires an interface to an appropriate control solution.

  • IEC61508 COMPLIANCE

Today’s requirements on modern protection systems, demand increased attention to the hydraulic and mechanical safety installations. The basis for these protection systems is the IEC61508 standard and ImpTC trip block is designed and certified to meet these requirements.

  • 2oo3 TRIP BLOCK

The hydraulic trip block is designed to satisfy today’s demanding operating environments. The new hydraulic trip block is based upon a well proven 2 out of 3 functional principle, ensuring the highest availability at all times. The ImpTC trip block is designed to be easily implemented into a variety of applications and especially to seamlessly complement a modular integrated upgrade of the turbine control and protection system.

Benefits

  • SYSTEM LIFE EXTENSION

Turbines equipped with aging hydraulic protection systems are difficult to maintain and spare parts are increasingly difficult to source. The new hydraulic safety system eliminates these issues.

  • OUTAGE TIME REDUCTION

Compact design and a reduced weight of the trip block facilitate easier installation and can typically be replaced and commissioned during a standard inspection.

  • AVAILABILITY IMPROVEMENT

The upgrade reduces the probability of a forced outage due to aging systems, while preventing costly and time consuming repairs.

Tehnical specifications

  •  Certified according IEC 61508 up to and including SIL3
  • Dimension: 380 x 223 x 309 mm
  • Pressure range: 2 to 40 bar
  • Power supply: 24 V DC ± 10%
  • Response time: less than 25 ms