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metering system assembly consists of the following sub-skid:
1. Metering skid, consist of ultrasonic flow meter, pressure transmitter, temperature transmitter, pressure gauge, temperature gauge etc.
2. Analyzer shelter, consist of gas chromatograph, dew point analyzer, and moisture analyzer.
3. Gas metering panel, consist of flow computer and station computer (usually gas metering panel are located inside the control room).
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What is use of metering core in transformer bushing?
It is the current transformer core meant for metering.
What metering device is the most efficient for heat pumps?
Thermostatic Expansion Valve (TXV, TEV). Any high efficient system requires one.
What is the accuracy of 3 phase 4 wire system to 3 phase 3 wire metering system?
It makes no difference as to what system is being monitored. The meter itself has to be accurate because it comes under the government's weights and measures department. Meters in the field are checked if the consumer thinks there is a problem with their billing. Before a meter is put into service they are all checked for accuracy by an independent agency.
How does HVAC work?
HVAC works with four major parts; The compressor, which is the heart of the system. An Evaporator, which abosorbs heat the form the structure. Third the condenser, which releases heat from inside and puts it in a place where it makes not difference, usely outside. Lastly the Metering device, which seperates the high and low side of the system. We will start at the compressor which pushes the refrigerant to the condenser at high pressure. In that process the refrigerant heated up do to the compression, the reason for going to the condenser is so the heat from compression and heat from in the house can be released. After the heat has been released and refrigerant is condensed it moves to the metering device which depending on how old your system is can be multiple devices we will just say it is a very small hole so normal people will understand. As the refrigerant is leaving the metering device it is now turning into liquid as well as going down in pressure. when it reaches the evaporater this liquid boils off back into vapor becaus in the evaporater it absorbs heat from the house. now it travels back to the compressor now fully vapor to be compressed and sent around again.
What is the impact of reversing the polarity of a CT in a 3phase and 4wire metering arrengement?
The net measured power would appear to be negative, or reversed.
