Line Coupling Equipment

RFL 9550 Line Trap

The RFL 9550 Line Trap features low loss and modular design. RFL is able to design line traps according to customer requirements given the various application parameters such as outline dimensions and short time current per IEC Series-2 Standards. Check out the product brochure, it provides of all the information necessary to meet your product requirements.


RFL 9510 and 9510P Fixed Extra Wide Band Line Tuner
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The RFL 9510/9510P Extra Wide Band Line Tuner matches the impedance of the powerline carrier (PLC) terminal to that of the high voltage power line in order to reduce the insertion loss for the transmission of PLC signals over the power line. In addition, isolation from the power frequency voltage and transient overvoltages is provided.

The RFL 9510/9510P series high-pass or band-pass line tuners filters are enclosed in casings made of fine-quality aluminum that can perform under all-weather conditions. Capacitors are of the highest voltage type. Inductor and matching transformer units are molded and sealed. A zinc-oxide lightening arrester is used as the protective device.

Model 9510 is used for phase-to-groud coupling, while model 9510P is used for phase-to-phase coupling.


RFL 9512 Line Tuning Unit

The RFL 9512 Line Tuner matches the impedance of the Power Line Carrier (PLC) terminal to that of the high voltage power line in order to reduce the insertion lossof the transmission of PLC signals over the power line. In addition, isolation form the power frequency volatage and transient overvoltages is provided.

  • The RFL 9512 line tuner can be used with PLC communications systems connected to coupling capacitors having a capacitance between 2,000 to 10,000pF.
  • Conforms to the requirements of IEC 60481.
  • Peak envelope power (PEP) rating is 400 Watts.• Available in either High Pass or Band Pass filter configurations.
  • The RFL 9512 is used for pahse-to-ground coupling. Phase-to-phase versions are also available.
  • All weather enclosure with stainless steel hardware.

The high-pass or band-pass circuit consists of a drain coil, inductors, and capacitors. A matching transformer provides potential insulation between line side and equipment (cable) side, and provides the means to make the power line impedance match that of the PLC terminal. The power frequency current derived from the coupling capacitor is drained to ground by the integrated drain coil. Limitation of voltage surges coming from the power line at the HV terminal of the tuner is performed by a lightning arrestor connected in parallel with the drain coil. The line tuner will be short-circuited to ground with the grounding switch is closed.

 
 

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