Raytech MUX R Instruction Manual Download | Manualshive

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Summary of Contents for MUX R

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Page 2: ...4 5 Multiplexers Tap Changer Interface 20 4 5 1 General Description 20 4 5 2 Pin Assignment and Schematic of Tap Changer Interface 21 5 Using Multiplexer Software 22 5 1 Configure your Multiplexer Se...

Page 3: ...of all high voltage apparatus while conducting tests and measurements GROUND THE MULTIPLEXER To minimize shock hazard the multiplexer chassis and cabinet must be connected to a properly grounded recep...

Page 4: ...per transformer including Winding Resistance and Turns Ratio Uses up to three Multiplexers and measure transformers with three winding systems with one cabling sequence Get your own configuration con...

Page 5: ...ple in chapter 2 2 Example Block Diagram would be set up with Multiplexers and Raytech devices In later Chapters this kind of diagram will be used to illustrate several Multiplexer Setups NOTE A compl...

Page 6: ...n Manual Multiplexer Page 6 of 40 3 Overview 3 1 Front 3 2 Back NOTE Multiplexers do not need a Main Power Switch They will automatically be switched on when the controlling Winding Resistance Meter s...

Page 7: ...hat s only a part of what is doable and thought to give you an impression of the benefits a System based on Raytech Multiplexers offers to you A complete system based on Raytech equipment is called Au...

Page 8: ...er test In the example shown the high voltage side is ready to be measured Because of the delta configuration of the primary windings H1 H2 H2 H3 and H3 H1 will be measured H0 cables are not used Afte...

Page 9: ...cable Nr Cable Type Order Nr Connect on Mux to Connect on WR to 1 Option Cables 30493 100 Option In Out Option Out Continue with connecting Current and Potential Cables Nr Cable Type Order Nr Connect...

Page 10: ...90158 1 08 Instruction Manual Multiplexer Page 10 of 40 4 2 Case 2 One WR one TR and two Multiplexers 4 2 1 Schematic Diagram...

Page 11: ...mary and a secondary winding with two different currents at the same time Of course transformers with a tertiary winding system can also be measured To measure third windings resistances and TR H Y co...

Page 12: ...on Mux to Connect on TR to 3 Standard TR cable 30015 100 TR H Continue with connecting Current and Potential Cables Nr Cable Type Order Nr Connect on Mux to Connect on WR to 4 Sense Cable blue green 3...

Page 13: ...90158 1 08 Instruction Manual Multiplexer Page 13 of 40 4 3 Case 3 Two WR one TR and two Multiplexers 4 3 1 Schematic Diagram...

Page 14: ...me when doing both winding systems at time because the core will be energized by the primary winding system Saturation can be reached easier with a current flowing on the primary side because it usual...

Page 15: ...ble Type Order Nr Connect on Mux to Connect on TR to 3 Standard TR cable 30015 100 TR H Go on with connecting Current and Potential Cables Nr Cable Type Order Nr Connect on Mux to Connect on WR to 4 S...

Page 16: ...90158 1 08 Instruction Manual Multiplexer Page 16 of 40 4 4 Case 4 Two WR one TR and three Multiplexers 4 4 1 Schematic Diagram...

Page 17: ...g system Usually it is not necessary as secondary and tertiary windings are very similar It can be measured in series and you can safe one WR meter Raytech TR Mark II III will on X side be connected t...

Page 18: ...nnect TR and T Rex to Multiplexer NOTE If there is no T Rex in your system connect cables from Multiplexer directly to TR MARK III Nr Cable Type Order Nr Connect on Mux to Connect on TR to 3 Standard...

Page 19: ...on with connecting Current and Potential Cables Nr Cable Type Order Nr Connect on Mux to Connect on WR to 5 Sense Cable blue green 30492 100 Channel Channel 6 Current Cable black 30491 100 Current Cu...

Page 20: ...ally open 250V 3A 2 relay contacts normally open 60V 3A 2 digital in prepared for tap changer use 2 digital in ready for general use 2 digital out darlington open collector to control external relays...

Page 21: ...DO names digital outputs Use RE12 and RE13 to switch heavy loads like a powerful tap changer actor Use RE10 and RE11 to switch loads up to 60V 3A TC in 1 and TC in 2 are digital inputs proposed to be...

Page 22: ...control up to three Multiplexers It will automatically detect how many Multiplexers are connected and which Multiplexer addresses are available The allocation of Multiplexers to Winding Resistance Met...

Page 23: ...keep the corresponding channel as a non multiplexed channel Auto Setup will bring any detected Multiplexer in to ascending order to channel number This Indication shows that the specified Multiplexer...

Page 24: ...e see 90163 X XX Instruction Manual WR XX Rack or 90164 X XX Instruction Manual WR XX for detailed information about transformer profiles 5 3 Controlling a Multiplexer When a multiplexer is connected...

Page 25: ...r with a dot matrix is opened This is the way to switch a winding resistance meter to any test object It s recommended when the device under test is no transformer The following page shows how this sc...

Page 26: ...configuration Rows show where positive WR connections are switched to while columns show where negative connections are switched to In the example above positive current sense is switched to H2 and ne...

Page 27: ...ration appears By touching a configuration can be selected and Multiplexers will be switched automatically Of course also here the button can be touched as described in chapter 5 3 1 Multiplexer Menu...

Page 28: ...plexer A Secondary and Tertiary winding system is measured by a second WR and Multiplexer B and C To keep the following schematics simple only current paths are drawn One of the WR channels potential...

Page 29: ...ss Choose Off in the Multiplexer control screen Config If you have a look to chapter 9 A look under the hood you will find the relay that shortens the current terminals In Bypass mode this relay is cl...

Page 30: ...control if turns ratio is measured primary to secondary TR A B or primary to tertiary TR A C winding system 2 Switch Mux B and C to TR All Multiplexers that are connected to the same Winding Resistan...

Page 31: ...ng to test object Labels are located near plugs and clamps of cables Example Clamp end of cable to test object Color scheme for Multiplexers Color scheme for phases Multiplexer A yellow Multiplexer B...

Page 32: ...r firmware has to be updated if you are using a version below 2 5 4 0 And it should be updated if you are using an older version than 2 7 0 0 Only this and newer versions will provide all the Multiple...

Page 33: ...version or update to a new firmware follow the procedure below NOTE Only a Multiplexer A WRMUX A can be updated You may have to change cabling to do that Connect only one Multiplexer to the commandin...

Page 34: ...Page 34 of 40 Connect a USB Memory Stick containing the new firmware version in its root directory to the controlling WR Touch the button Update Firmware to get to the update screen Chose your firmwar...

Page 35: ...een To make sure your work is not interrupted you will never be forced to start a cleaning cycle A complete cleaning cycle will switch Multiplexers relays in a defined order and timing under at ideal...

Page 36: ...tiplexer indication on the bottom right of the Winding Resistance screen Touch it and you will get to the Multiplexer Setup Screen shown bellow This screen is already known from chapter 5 1 2 Multiple...

Page 37: ...1 08 Instruction Manual Multiplexer Page 37 of 40 Stopps a running cleaning cycle Starts a cleaning cycle Shows relevant information for cleaning of selected Multiplexer Leads back to main menu Shows...

Page 38: ...look under the hood To give you a better understanding of what Multiplexer really is see the following schematic diagram In a way a Multiplexer is a micro controller based relay box containing feature...

Page 39: ...AC Mech Relais Life Min 1 000 000 cycles Insertion Error Less than 0 01 11 Accessories Standard Complete Cable Set Cable Labels Optional Customized Cable Set Integrated Safety Unit ISU 1 DUT Device Un...

Page 40: ...ro is a powerful software to remote control Raytech test instrument data exchange and analyse measured data of it A complete customised system including as many Multiplexers Winding Resistance Meters...

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