SALIENT FEATURES

• PET/PRT Series trainers facilitate characteristics study of transmission line, load regulation, efficiency, power circle diagram, VAR Compensation, per unit representation, symmetrical & unsymmetrical faults, power flow, study & effect of Peterson coil, Numerical methods, string insulator etc.
• Simulates 400 KV, 50 / 60Hz, 3 Phase 1MVA. Transmission Line by scaling it down by 1000:1. Optionally second TL may be supplied for 3 bus experiments.
• XPO-PET/TL Trainer need a few set of associated panels which are mounted in a light weight sturdy aluminum profile flat demo modular panel system.

Technical Specifications

• Input 3 phase DOL Starter panel (EMT1) (10 Shrouded Banana)
  • 4 pole MCB of 415 V/4A .
  • DOL 9A Contactor with 230V / 50 Hz / 11VA COIL
  • Bimetallic thermal O/L relay with range 2.5A -6A
  • Green SBS5 socket is provided for extend earth.
• FWD-OFF-REV, Switch Panel (EMT 4A) (6 Shrouded Banana)
  • FWD/REV, 3 pole 3 way switch with center OFF, 6A/440V.
• Integrated AC 3 phase measurement panel (EMT 34) X 2 (9 Shrouded Banana)
  • Bidirectional Multifunction Meter
  • 3 Phase 3/4 wire, 415V, CT Input 5A
  • LCD/LED display, Aux supply 230V, 45-65 Hz, 5W
  • V.I., Hz, Pf, KVA, KW,KWH
  • Modbus RTU RS 485 with VWB software (optional)
  • Green SBS5 socket is provided for extend earth.
• VAR Compensation panel (dual panel) (EMT43) (12 Shrouded Banana)
  • Consisting of VAR compensating capacitors of 2, 4, 6, 8, 10 & 15μF each of 3 nos with 3 pole 7 way switch for selection.
• Transmission line Panel (EMT38) (24 Shrouded Banana) Table Top Panel consisting of :
  • Simulate model for transmission line constructed using R(10ohm/600W), L(0.15H/5A) and C (2.2uF/630V) 6 No. each component.
  • Can Simulate model for medium/long (125 km/250 km) length transmission line for π model.
  • Can Simulate model for medium/long (125 km/250 km) length transmission line for T model.
  • Fan cooled table top setup for long life.
• String insulator simulation panel ( EMT89) x 2 nos. (optional) (23 Shrouded Banana)
  • Can Simulate 4 insulators string using 2 uF/440Vac capacitors - 4 nos & 0.22uF/630Vac capacitors - 6 nos.
• RLC load panel EMT42A/B/C (42 Shrouded Banana) Table Top Panel consisting of :
• Facilitates easy and safe wiring by students due to use of 4mm sturdy Shrouded banana patch cords and shrouded socket arrangements for high voltage circuits
• Each panel has ABS molded plastic sturdy enclosure, and colorful screwless overlays showing circuits diagrams & its connection tag numbers for easy understanding and connection.
• Optionally PC based SCADA viewer (VWB) software may be provided.
• Set of Instructor Guide & Student Workbook.
  • 3 nos of 1KW resistors with switch selectable 1(off) + 6 nos. of taps at 100, 112, 150, 175, 200 & 225 ohm & SIL tap of 262 ohm.
  • 3 nos. of inductor 1.5H/1A with switch selectable 1(off) + 6 nos. of taps at 0.3, 0.6, 0.75, 0.9, 1.2 & 1.5H.
  • Capacitors 440VAC rating (3 nos, one per phase) with switch selectable 7 nos of value of 2, 5, 10, 15, 20, 30 & 50μF.
  • Fan cooled table top setup.
• 3 phase dimmer panel (EMT20D) (8 Shrouded Banana) Table Top Panel consisting of :
  • 3 phase dimmer I/P : 415VAC, 50Hz, O/P : 0 - 470 V AC, 6A, 3 phase.

List of Experiments :

1. Working with bi-directional 3 AC measurement panel, observing flow of real & reactive power & optionally modbus communication with PC.
2. No load test & Ferranti effect.
3. Determination of transmission line constants (ABCD) by experimental measurement using 2-port method as well as by knowing components values and its verification.
4. Load Test & Calculation of Regulation, efficiency of Transmission Line by Laboratory measurement method.
5. Working with power circle diagram & to find steady state power limit of transmission line.
6. Capacitive VAR compensation
7. Per unit representation
8. Symmetrical & unsymmetrical faults in transmission line, LG fault with & without Petersen Coil.
9. Predicting Power Flow in Transmission Line (2 bus) by Numerical method [Newton Raphson / Gauss–Seidel Method/ Fast Decouple Method]
10. Optional : Study of string insulator voltage distribution & determination of efficiency for a string of 4 insulators (single panel) & 7 insulators (Double panel) with & without guard ring.

• Mechanical Dimension (mm) & Weight of Trainer: 1165(L) x300(W)x990 (H)
• Net Wt.: 45 kg. Gross Wt.: 55 kg.
• EMT20D : 53 kg. EMT 42 : 60 kg. EMT 38 : 103 kg.