Learning Triol TM01 High-Voltage Choke
In my previous blog, I told you what the Surface Control Panel is. Today we will study the device of the telemetry cabinet TM01 High-Voltage Choke.
TM01 High-Voltage Choke (HVC) is a three-phase choke with star-connected windings.
HVC is designed to connect to the output windings of a step-up transformer to form an artificial zero point. HVC is designed to create an artificial zero point in step-up transformers in which the output windings are connected in a “triangle” scheme.
HVC provides the ability to connect a terrestrial telemetry panel with a submersible block.
Main parameters and characteristics of HVC
|Rated circuit voltage||660…5000 V|
|Current saturation high-voltage choke, not less than||70 мА|
|Inductance, not less than||20 H|
|Ambient temperature||от -40 °С до +60 °С|
|Degree of protection according to NEMA-250-2008, not lower than||NEMA4|
|Duration of the operating mode||Long term|
|Width (without mounting brackets)||640 mm|
|Depth (without mounting brackets)||450 mm|
|Weight||91 kg ± 0,5 kg|
High-Voltage Choke Cabinet (Front view)
High-Voltage Choke Cabinet (View from above)
The HVC cabinet has a degree of protection for NEMA4 body. This means that this cabinet is dust-proof and protected from strong water jets directed to the cabinet from any angle.
The HVC cabinet is designed for operation in the temperature range from -40°C to +60°C and relative humidity up to 90% (without condensation). The environment should not contain explosive or corrosive gases, nor contain conductive dust.
High-Voltage Choke creates zero-midpoint, required for the Triol DMS operation. That means, usage HVC to create zero-midpoint is required if step-up transformer’s secondary winding has no zero-midpoint, has ∆-connection scheme or it is placed before SWB.
HVC is characterized by:
- electrical property;
- temperature resistance, high heat distortion temperature;
- mechanic and chemical property;
- wear property;
- high resistance to fuels, oil, fats and many solvents.
Here are the basic parameters of the telemetry cabinet TM01 High-Voltage Choke. If you have any questions or, perhaps, suggestions – I will be happy with your comments.
See you next time!
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