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RF-MCHYBRIDPRO-01

Hubbell Power Systems, Inc.

–

RFL™ Products

June 2019

27

973.334.3100

Figure 30 – Bypass, Top View

Figure 31 – Bypass, Rear Panel

Figure 32 – Bypass, Front Panel (test points)

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Содержание RFL PLC Hybrid Pro

Страница 1: ...transmitted published or stored in an electronic retrieval system in whole or in part by any means electronic or otherwise For permission contact customer service rflelect com Hubbell Power Systems In...

Страница 2: ...ned in this manual HPS shall not have any liability resulting from the use of the information in this manual This manual does not purport to cover all details or variations in equipment nor provide fo...

Страница 3: ...lanced Hybrid 15 4 2 Skewed Hybrid 17 4 3 Skewed Hybrid Front Panel Test Switch 19 4 4 Splitter 21 4 5 Splitter Combiner 23 4 6 Bypass Hybrid 25 4 7 1RU Hybrid Chassis 28 5 Testing and Verification 30...

Страница 4: ...27 Figure 31 Bypass Rear Panel 27 Figure 32 Bypass Front Panel test points 27 Figure 33 1RU Hybrid Chassis Front View Door Closed 28 Figure 34 1RU Hybrid Chassis Front View Door Open 28 Figure 35 1RU...

Страница 5: ...e 4 Skewed Hybrid Specifications 19 Table 5 Splitter Specifications 22 Table 6 Splitter Combiner Specifications 24 Table 7 Bypass Hybrid Specifications 26 Table 8 Chassis Dimensions 29 Table 9 Balance...

Страница 6: ...t HPS RFL assumes no liability for failure to comply with these requirements Ground the Chassis The chassis must be grounded to reduce shock hazard and allow the equipment to perform properly The Chas...

Страница 7: ...may exist Do not Substitute Parts or Modify Equipment Because of the danger of introducing additional hazards do not install substitute parts or make unauthorized modifications to the equipment The p...

Страница 8: ...C powered or DC powered equipment If there is a conflict between any procedure in this manual and your company s safety rules then your company s safety rules must take priority 1 1 3 Additional Cauti...

Страница 9: ...rough the hybrids The most common hybrid names are also a description of their loss characteristics a balanced hybrid is so named because the losses are balanced equal while in a skewed hybrid the los...

Страница 10: ...characteristics of individual hybrids are discussed later in this manual 3 1 One Transmitter One Receiver FSK TX SK RX to from Line Tuner Figure 2 One Transmitter One Receiver FSK The configuration sh...

Страница 11: ...The skewed hybrid s RX port provides the required termination for the hybrid circuit This is an operational advantage as well for service and maintenance operations removing any one receiver from the...

Страница 12: ...d 3 5 Two Transmitters Two Receivers Phase to Phase Coupled low loss method TX1 TX2 BAL SK RX1 RX2 SPL to from Line Tuner A to from Line Tuner B Figure 6 Two Transmitters Two Receivers Phase to Phase...

Страница 13: ...nother variation of a phase to phase coupling application This type of hybrid scheme is used when two independent relaying channels are being applied The difference between this circuit and the one in...

Страница 14: ...typically used only on the most critical lines and at transmission levels of 500 kV and above It is the most reliable method since the loss of any one phase should not cause the channel to fail The lo...

Страница 15: ...wo transmitter inputs This isolation prevents the PLC transmitters from mutually loading each other and from creating intermodulation distortion products which can interfere with other PLC systems A b...

Страница 16: ...rotection Table 2 Balanced Hybrid Specifications Balanced Hybrid Specifications Operating Impedance 50 ohms 75 ohms available by request Insertion Loss either input port to output port approximately 3...

Страница 17: ...are commonly grouped tightly together in a small frequency band the transmit signal could easily appear as noise inside the bandwidth of the receiver The isolation provided by the skewed hybrid is wh...

Страница 18: ...r the receiver s front end and also contains an optional line termination resistor There is a transient suppressor CR1 which limits the voltage at the receiver This is permanently installed on the RX...

Страница 19: ...n Products At least 60 dB below the fundamental frequency 4 3 Skewed Hybrid Front Panel Test Switch FIGURE 14 shows the functional circuit of the test switch on the skewed hybrid front panel The switc...

Страница 20: ...h switch TX SK RX HYB OUT TO TUNER IN OUT VSWR METER coax cables TX SK RX HYB OUT TO TUNER IN OUT VSWR METER coax cables Test Connections Installed Switch TEST signal path through meter Figure 14 VSWR...

Страница 21: ...r maximum propagation down the transmission line in center phase to outer phase coupling schemes This type of hybrid is essentially a balanced hybrid turned around When balanced hybrids are used there...

Страница 22: ...lo blo fuse F1 F3 for overvoltage and overcurrent protection Table 5 Splitter Specifications Splitter Specifications Operating Impedance each port 50 ohms 75 ohms available by request Phase relationsh...

Страница 23: ...e advantage of using this device over the splitter is that there is no single coax cable on which all the signals travel Typically IN1 is fed by a skewed hybrid which carries signals for one relaying...

Страница 24: ...beled for the application The circuit in FIGURE 23 requires twelve connections with critical phase dependent connections which are likely not labeled for the specialized application introducing many o...

Страница 25: ...OCAL 6 5 dB LINE 2 6 5 dB 6 5 dB Figure 28 Bypass Hybrid Functional Diagram The bypass hybrid has a unique application and is not commonly used When deployed correctly any signals from Station A are d...

Страница 26: ...eme on a linear transmission network The bypass hybrid allows any one station to reach any of two others as in a 3 terminal ring Unique protection schemes can be designed which incorporate this multi...

Страница 27: ...RF MCHYBRIDPRO 01 Hubbell Power Systems Inc RFL Products June 2019 27 973 334 3100 Figure 30 Bypass Top View Figure 31 Bypass Rear Panel Figure 32 Bypass Front Panel test points...

Страница 28: ...n taking level measurements through the hybrid chain during commissioning or regular service to help verify that the losses are appropriate or not At the front of the chassis behind the drop down door...

Страница 29: ...assis Rear View 1 72 4 37 14 5 36 83 19 48 26 18 312 46 512 17 625 44 768 Figure 36 1RU Hybrid Chassis Dimension Table 8 Chassis Dimensions Description Inches cm Height 1 72 4 37 Width without mountin...

Страница 30: ...nch testing the hybrids a signal generator is also required though many modern FSVM s have this function built in Bear in mind the following points when testing hybrids Consider each port s terminatio...

Страница 31: ...TX1 is terminated by the signal generator s source impedance setting TX2 is terminated by a dummy load OUT is terminated by the meter s 50 ohm input TX1 TX2 BAL OUT 50 ohm dummy load To FSVM 50 ohm i...

Страница 32: ...oss Characteristics Balanced Hybrid Loss Characteristics Insertion Loss TX1 to OUT 3 5 dB TX2 to OUT 3 5 dB Isolation trans hybrid loss TX1 to TX2 30 dB minimum 15 dB TX2 to TX1 30 dB minimum 15 dB TX...

Страница 33: ...s Skewed Hybrid Loss Characteristics Insertion Loss TX to LINE 0 5 dB LINE to RX 13 dB Isolation trans hybrid loss TX to RX 40 dB minimum 25 dB TX RX SK LINE Signal In To FSVM 50 ohm termination Hybri...

Страница 34: ...channel when connected end to end it will have some loss characteristics when analyzed by itself There are two parameters which must be checked to verify correct operation insertion loss and phase re...

Страница 35: ...eration insertion loss isolation and phase relationship Table 12 Splitter Combiner Characteristics Splitter Combiner Characteristics Insertion Loss IN 1 to LINE 1 6 5 dB IN 1 to LINE 2 6 5 dB IN 2 to...

Страница 36: ...e separation between LINE 1 and LINE 2 50 ohm dummy load 50 ohm dummy load 0 degree phase separation between IN 1 and LINE 1 Figure 48 Measuring Splitter Combiner Phase Relationships IN 1 to LINE 1 LI...

Страница 37: ...cts June 2019 37 973 334 3100 Table 13 Bypass Hybrid Characteristics Bypass Hybrid Characteristics Insertion Loss LOCAL to LINE 1 6 5 dB LOCAL to LINE 2 6 5 dB LINE 1 to LOCAL 6 5 dB LINE 1 to LINE 2...

Страница 38: ...e NOT physically compatible with the new style chassis Contact customer service rflelect com about field upgrade options General description of changes and updates Balanced hybrid only description was...

Страница 39: ...e tables Table 14 New Legacy Conversion New Hybrids Legacy 97 series Balanced Hybrid X Hybrid Part number 107970 Part number hybrid 106630 1 Part number I O 106660 Smart Number code BA Smart Number co...

Страница 40: ...r SC Bypass BP Center Position Blank 0 Balanced BA Skewed with test switch SK Splitter SP Splitter Combiner SC Bypass BP Right Position Blank 0 Balanced BA Skewed with test switch SK Splitter SP Split...

Страница 41: ...RF MCHYBRIDPRO 01 Hubbell Power Systems Inc RFL Products June 2019 41 973 334 3100 Notes...

Страница 42: ...RF MCHYBRIDPRO 01 Hubbell Power Systems Inc RFL Products June 2019 42 973 334 3100 Notes...

Страница 43: ...RF MCHYBRIDPRO 01 Hubbell Power Systems Inc RFL Products June 2019 43 973 334 3100 Notes...

Страница 44: ...al 5 1 19 New Document Release 5 1 19 DP Printed in U S A June 3 2019 Part Number RF MCHYBRIDPRO Hubbell Power Systems Inc RFL Products 353 Powerville Road Boonton Twp NJ 07005 9151 USA Tel 973 334 31...

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