Lab Report 1.pdf

Resistance ω tsc1 switch tsc2 switch tcr firing

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Resistance (Ω) TSC1 Switch TSC2 Switch TCR firing angle Reactive power (var) Sender Voltage (E S ) Receiver Voltage (E R ) 4800 ON ON 121 17.8 399 416.4 2400 ON ON 114 3.8 399 439 1200 ON ON 120 33.6 399 404 Table 1. X L to 400Ω for different load 27. Set the line inductance (X L ) to 0Ω and repeat the step 26. Resistance (Ω) TSC1 Switch TSC2 Switch TCR firing angle Reactive power (var) Sender Voltage (E S ) Receiver Voltage (E R ) 4800 ON ON 180 -9.8 399 399 2400 ON ON 180 -27.6 399 399 1200 ON ON 180 -29.0 399 399 Table 2.X L to 0Ω for different load 28. Turned off the power supply and remove all the connected leads. 5. CONCLUSION: The power rating of the SVC (each capacitor) was 24var. In TSC1, three capacitors were there, so total rating of the TSC1 was 72var . Total capacity of supplying reactive power in SVC was 144var (theoretical). In the experiment , total var capacity for SVC was 60.2var. For the X L to 0Ω , the sender voltage and receiver voltage were equal whereas for X L to 400Ω , the sender voltage and receiver voltage were not compensated . Reactive power was in negative polarity for X L = 0Ω due to the non-conduction of TCR .
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, III. Basic Operation of HVDC Transmission Systems 1. OBJECTIVE: To explain the operation of basic HVDC transmission system and adjust the system operating point while retaining the maximum Displacement Power Factor (DPF) at both ends of the line and for both directions of power flow. 2. EQUIPMENTS REQUIRED: In the EMS workstation, these modules were used, S.No. Equipments Quantity 1. Three Phase AC Power Supply 1 2. Regulating Autotransformers 2 3. Three Phase Transformer Bank 2 4. Power Thyristor 2 5. Three-phase Transmission Line 1 6. Data Acquisition and Control Interface 2 7. Connecting leads As required for connection 3. EXPERIMENTAL SETUP: 2. Connected all the modules in the EMS workstation as shown in the figure1, figure2 and figure3. 3. Make sure that AC power supply was turned off and turned the voltage control knob to 0% in the three-phase power supply module. 4. Connected the 24V AC power supply to the Low Power Input of each Power Thyristor module and to the Power Input of each Data Acquisition and Control Interface. 5. Connected the USB port of each Data Acquisition and Control Interface to USB ports of the computer and turned on the 24V AC power supply for Data Acquisition and Control Interface unit.
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, 6. Turned on the com LVDAC_EMS and s frequency. 7. The serial number of used to control the th and J300. Figure 1 mputer and started the data acquisi selected the 240V and 50Hz as operatin f the Data Acquisition and Control Inte hyristor bridges in converter stations 1 a 1.HVDC Transmission System part 1 ition software ng voltage and erface modules and 2 are J299
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, Figure 2 Figure 3 2.HVDC Transmission System part 2 3.HVDC Transmission System part 3
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, 8. On each power thyristor module, set switches S1 and S2 to the on position, which interconnects thyristors Q1 through Q6 of each power thyristor module.
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