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HI Friends,
I am working in oil and gas department. Here gas turbine are operated to compress the gas and then transmit it. Here in the control of turbine the FLAME OUT protection is used also through the logic. But The input from that protection in to PLC is differential pressure switch which is connected as under.
The LOW side of the switch is directly connected to the Compressor discharge pressure and the HIGH side of the switch is connected with the same line but a orifice is installed between high side and the input of the Compressor discharge pressure. So in short A PCD LINE DIRECTLY CONNECTED WITH LOW SIDE AND VIA ORIFICE CONNECTED TO HIGH SIDE.
The size of the orifice is 0.009 inch or 0.023MM.
And the switch rating is 6 PSID INCREASING and 4 PSID decreasing.
how it works and what is the effect if pcd is 60 PSi? Help me in that issue
Thanking you i will remain
Hamad
I am working in oil and gas department. Here gas turbine are operated to compress the gas and then transmit it. Here in the control of turbine the FLAME OUT protection is used also through the logic. But The input from that protection in to PLC is differential pressure switch which is connected as under.
The LOW side of the switch is directly connected to the Compressor discharge pressure and the HIGH side of the switch is connected with the same line but a orifice is installed between high side and the input of the Compressor discharge pressure. So in short A PCD LINE DIRECTLY CONNECTED WITH LOW SIDE AND VIA ORIFICE CONNECTED TO HIGH SIDE.
The size of the orifice is 0.009 inch or 0.023MM.
And the switch rating is 6 PSID INCREASING and 4 PSID decreasing.
how it works and what is the effect if pcd is 60 PSi? Help me in that issue
Thanking you i will remain
Hamad