Power transmission _distribution_line_trainer_tl_04_26

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Power transmission _distribution_line_trainer_tl_04_26

  1. 1. Using the TL 04 26 trainer set it will be possibility to assemble anabsolute power transmission system. From a transformer with tappingswitch to the power circuit breaker and 380kV power transmission linemodel up to and including line termination with surge impedance.Various investigation are carried out on this power transmission system,no load operation with natural load, symmetrical and unsymmetricalshort circuit, parallel and series compensation of the transmission lineas well as neutral-point connection.
  2. 2. THREE PHASE TRANSFORMER TL 380 KV 04 26 01 01Transformer for feeding the transmission line model 380 kV. Scale factor1:1000 for secondary current and voltage.Nominal Power : 800 VAPrimary : 3 x 400 V winding with tapping at 230 V, can be switched to star or delta connectionDelta stabilizing winding can be connected.Secondary : 3 x 380 V winding with tap-pings at +5%, -5%, -10%, -15% in star connection, various star Point connections possible- Dimension : 420 (W) x 290.70 (H) x 170.80 (D) mm- Weight : 30 kg- Unit Type : Panel H3TRANSMISSION LINE MODEL 380 kV 04 26 01 02Three-phase model of a 380 kV overhead transmission line For measuringsteadystate operating conditions (no-load, macthing, short-circuit) with thefollowing specifications : Quad bundle 4 x 240/40, with surge impedance240W and natural load 600 MW, length 360 km. During symmetricaloperation tappings enable the carrying out of investigations at lengths of144 km resp. 216 km. Earth return line Re=11W, LE=250 mH forunsymmetrical load at 360 km line length. Scale factor : 1/1000 for currentand voltage.Length : 360 km 216 km 144 kmResistance : 13 Ohm 8 Ohm 5 OhmInductance : 290 mH 174 mH 116 mHOper.Capacity : 5 µF 3 µF 2 µF- Dimension : 420 (W) x 290.70 (H) x 170.80 (D) mm- Weight : 23 kg- Unit Type : Panel H3TRANSMISSION LINE CAPACITOR TL 380 kV 04 26 01 033-phase in star connection , 2.5 µF each, corresponds to 50 % of theoperating capacitance of transmission line model 380 kV- Dimension : 110 (W) x 290.70 (H) x 130.50 (D) mm- Weight : 1 kg- Unit Type : Panel H1
  3. 3. POWER CIRCUIT BREAKER MODULE 04 26 01 043-phase ON-OFF switch with auxiliary contact (NC) for transmissionline model 380 kV. Can be controlled manually using ON/OFFpushbutton or externally via switching contact, 4-mm sockets.Control input for external switch-off command (tripping on faults).Contact load capacity : 400 V AC , 3 AMains connection : 115/230 V, 50 Hz with mains connecting cable andearthing-pinplug- Dimension : 110 (W) x 290.70 (H) x 130.50 (D) mm- Weight : 1.5 kg- Unit Type : Panel H1EARTH FAULT COMPENSATION 04 26 01 05Inductance with 20 tappings for earth fault compensation in the 380 kVtransmission line model (Petersen coil).Inductance L : 0.005....2 HRated voltage : 220 V , 50 HzRated current : 0.5 A- Dimension : 210 (W) x 290.70 (H) x 130.50 (D) mm- Weight : 5 kg- Unit Type : Panel H2EXCITATION VOLTAGE CONTROLLER 04 26 01 06DC power supply unit suitable to supply 0-220Vdc, 0-2A adjustablefor excitation voltage in synchronous as generator operation- Dimension : 210 (W) x 290.70 (H) x 130.50 (D) mm- Weight : 4 kg- Unit Type : Panel H2
  4. 4. Resistive Load 04 26 02 01Compose of three resistances with possibility to connect in star/delta orparallel, controlled by three switches with 7 steps variable per phaseMax Power : 1200 wattVoltage : 380/220 Volt (Star/Delta)- Dimension : 440 (W) x 180 (H) x 270 (D) mm- Weight : 10 kg- Unit Type : Top Table modelInductive Load 04 26 02 02Compose of three inductances with possibility to connect in star/delta orparallel, controlled by three switches with 7 steps variable per phaseMax Power : 900 VARVoltage : 380/220 Volt (Star/Delta)- Dimension : 440 (W) x 180 (H) x 270 (D) mm- Weight : 20 kg- Unit Type : Top Table model Capacitive Load 04 26 02 03 Compose of three capacitances with possibility to connect in star/delta or parallel, controlled by three switches with 7 steps variable per phase Max Power : 900 VAR Voltage : 380/220 Volt (Star/Delta) - Dimension : 440 (W) x 180 (H) x 270 (D) mm - Weight : 5 kg - Unit Type : Top Table model
  5. 5. Three-Phase Synchronous Machine 07 21 03 01Synchronous machine with three phase winding both stator and rotor foroperation either as motor or as generatorNominal Power : 1000 VANominal Voltage : 220 / 380 V (Delta/Star)Nominal Current : 2.6 / 1.3 A (Delta/Star)Nominal Speed : 3000 rpm.Excitation : 200V/ 0.59 AFrequency : 50 Hz- Dimension : 350 (W) x 270.30 (H) x 260 (D) mm- Weight : 19 kgSquirrel Cage Three-Phase Motor 07 21 02 01Three Phase winding induction motor with squirrel cage rotor.Nominal Power : 1500 WNominal Voltage : 220 / 380 V (Delta/Star)Nominal Speed : 3000 rpm.Frequency : 50 Hz- Dimension : 350 (W) x 270.30 (H) x 260 (D) mm- Weight : 14 kg
  6. 6. Three Phase Power Supply 04 26 03 01The unit has been designed to provide all fixed and variable AC supplieswhich necessary in laboratory to perform the experiment required andwork project. The unit is contained in a metal housing with clear front panel identification and 4 mm safety sockets that make its easy and safe.Provided with start stop/stop push bottom emergency mushroom headpush bottom switches and protectionThree Phase AC Adjustable Output : 3x0-380V : 6AThree Phase AC Fixed Output : 220/380V : 10APower Requirement : 220/380V, 50Hz- Dimension : 540.60 (W) x 320 (H) x 360 (D) mm- Weight : 29 kg- Unit Type : INVERTER UNIT 04 26 03 02 Three phase asynchronous motor speed control by PWM technique. The Torque and Speed are able to be constant via the unit to easy control in testing operation during loads change. Input Voltage : 380V, 50Hz Output Voltage : 0-380V Out Frequency : 1-300Hz Max Power : 1.5 kW - Dimension : 420 (W) x 290.70 (H) x 170.80 (D) mm - Weight : 5 kg - Unit Type : Panel H 3
  7. 7. Connecting Safety Leads set SL-04 The set consists of 50 leads in 3 different coded colors and lengths chosen to allow the realization of all experiment described in the manual. Leads are capable of 15A current and terminal are 4 mm. safety plugs. Panel Frame Rack-02 2 Level Aluminum Rack suitable to be supported A4 Panel equipment Experimental Table 08 21 02 01 Size : 1500x800x800 (mm) WxHxD27/19 Mu.5, Talingchan-Suphanburi Rd., Lahan, Bangbuathong, Nonthaburi 11110, Thailand.Tel : 66 (0)2983 3737 Fax : 66 (0)2983 3738 http://www.kbmeng.com e-mail : kbmeng@asiaaccess.net.th
  8. 8. Power Meter HEWa-bElectrodynamic Power Meter instruments sever to measure direct and/oralternating current or voltage. Single Phase and Three PhaseSwitchable current ranges : AC/DC 1-5-10-20 ASwitchable voltage ranges : AC/DC 12-24-60-120-240-360-480 VThree-phase AC : 104-208-416 VAccuracy : 1.0Power Factor Meter HFQa-bFerro dynamic Power Factor Meter instruments are suitable for measuringpower factor in single - or three-phase networks.Rated current : AC 1-5ARated voltage : AC 150-300-450-600 VThree-phase : AC 150-300-450 VAccuracy : 1.5Voltmeter PDVMoving Coil Movement instruments sever to measure direct and/oralternating current or voltage.Switchable voltage ranges : DC 15-30-100-300 mV 1-3-10-30-100-300-1000V : AC 1-3-10-30-100-300-1000VAccuracy : 1.5 (DC)Accuracy : 2.5 (AC)Ammeter PDAMoving Coil Movement instruments sever to measure direct and/oralternating current or voltage.Switchable current ranges : DC 10-50-250mA-1-5-10A : AC 10-50-250mA-1-5-10AAccuracy : 1.0 (DC)Accuracy : 1.5 (AC)
  9. 9. 35 MHz Analog Oscilloscope HM303-6- Maximum signal fidelity with minimum overshoot 2 Channels with deflection coefficients of 1 mV – 20 V/cm, Low Noise Amplifiers- Time Base 0.2 s – 100 ns/cm, with X Magnification to 10 ns/cm- Triggering from 0 to 50 MHz from 5 mm signal level (100 MHz > 8 mm)- Analog mode provides unexcelled signal presentation at high resolution and up to 500,000 signal displays/sec.- Yt,XY and component-test modesFour Channel Isolating Amplifier 06 21 05 014 Channels : can be switches A, AB, ABC, ABCDInput voltage max. : 4 x 600Vdc/400VacVoltage display max. : 4x6Vdc/4VacMeasuring ranges : 1:1, 1:10, 1:100Frequency range : 0 … 60 KHzInput impedance : 10MohmOutput impedance : 10KohmMax read data per ch : 0.5usecOverscan indication : from 6VTrigger source : channel A … DVoltage supply : 220 Vac, 50HzDesign : Experimental panel systemDimension in mm : 297 x 210 x 110 ( HxWxD )Mass : 2.3 kg.
  10. 10. Typical ExperimentalThree Phase Transformer- Determination of the winding resistance- No Load experimental : Determine the voltage transformation ratio, no-load power factor when fed is carried out from the high voltage side or from the low voltage side- Short circuit experimental : Determine current transformation short circuit voltage and loss (with reduce voltage) short circuit power factor- Load Measurement : Inductive, Capacitive, Ohmic determining voltage change and efficiency based on calculation and measurement value- Behavior during unsymmetrical load, Influence of the delta compensation winding- Transformer in economy connection- Investigations of various switching groups- Determining the zero-phase-sequence impedanceTransmission Line Model 380 kV- Behavior of the line at no-load: Measuring the voltage increases with the line at no-load as well as the charging power for various line lengths- Behavior of the line during matching: Measuring and interpreting current and voltage ratios of a line during matching Interpreting the concept of characteristic impedance, “more than” or “less than” natural load operation, power transmission losses, efficiency- Interpreting the concept of operation capacitance- Investigating the operating differences between overhead lines and cables- Response of the line for various load types: - Ohmic load - Mixed ohmic - inductive load - Mixed ohmic - capacitive load- Reactive power compensation- Neutral earthing method - Fault to earth with isolated neutral earth - Influence of a Petersen coil- Unsymmetrical short circuit - Two-poled short-circuit with / without ground contact - Single-poled short-circuit- Determining zero-phase-sequence impedance
  11. 11. Generator-fed Power Transmission System with RLC Load- Measurements on the generator-fed line model under various operating conditions- Altering the excitation and the influence of this on the voltage- Influence of the frequency (varying the generator speed)- Investigating what happens when the generator falls out of synchronizationParallel and Series Connection of High-voltage Lines- Measuring the current distribution for two lines connected in parallel and having various lengths- Investigating the influence of the operating capacitances on voltages and currents- Measuring the voltages distribution for two lines connected in series and having various lengths- Determining the relationship between line length and voltage drop

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