IT-620B Electrical Power Distribution Trainer

Features:

  • Module Based
  • Power Supplies Included
  • Flexibility to Perform Custom Experiments
  • Passive Components Included
  • Resistors, Capacitors and Inductors Loads Included
  • Control Circuits Included
  • P.T. and other Passive Components Included
  • Protection Circuits Included

Experiments Included:

 Busbar System Experiments

  • Operation of a switching station with two busbars and different voltage.
  • Busbar transfer with interruption of the power supply to the consumer.
  • Busbar coupling and bus transfer without interruption of the power supply to the consumer.
  • Switching sequence for disconnectors and power circuit breakers.

Description

AC electrical power is generated in power stations, usually far from end users. This power is then transported over long distances using high voltage and low loss transmission lines. High voltage is achieved by using step up transformers and is fed to the transmission lines. Similarly, at user end, step down transformers are used to provide power to the users. This is possible only by using transformers. Transformers are used for stepping up the voltage of the generator to values which are suitable for high voltage systems, for power exchanging between networks, for stepping down the voltages to the medium voltage level and then for feeding the power into the low voltage network. In this laboratory a three-phase transformer is investigated. It consists of three individual poles with different connection possibilities on the primary side and variable secondary voltage. Power transmission lines are used to transmit electrical energy from the power stations to the consumers.

Advantage of three-phase systems is that it provides the consumers with two different levels of voltage, so that they can use their equipment in the best possible way. A three-phase model of an overhead power transmission line (with a simulated length of 360 km long, a simulated voltage of 380 kV and a simulated current of 1000 A) is used, with a scale factor of 1:1000. Transmission line characteristics are investigated under various load conditions. Circuit configurations are then connected for the demonstration of various neutral point connections in three-phase mains systems. Different voltage levels are used for transmitting power; the levels are determined by the amount of power and the distance; the higher the transmission voltages, the lower the currents as well as the transmission losses. However the network investment cost increases with the voltage.

Asymmetrical short-circuits are also simulated. Other topics covered by this laboratory are reactive power compensation, the basic circuits of power engineering, series and parallel connections of operating equipment (lines, transformers), circuit involving the conversion of delta connections to star connections, circuit involving the conversion of star connections to delta connections, busbars, disconnectors, power circuit breakers, voltage and current transformers.

List of Electrical Power Trainer

Description Module Qty
Line Model

  • Simulated Length: 360km
  • Simulated Voltage: 380kV
  • Simulated Current: 1000A
  • Scale factor: 1:1000
  • Mutual capacitance: 1mF
  • Earth capacitance: 2mF
  • Line resistance: 13Ω
  • Line inductance: 290 mH
  • Earth resistance: 11Ω
  • Earth inductance: 250 mH
IT-6002 1
Three-Phase Transformer

  • Scale Factor: 1:1000
  • Primary Input: 3 x 380 V
  • Connection Type: Star or Delta
  • Secondary Output: 3 x 220 V windings with taps at +5%, -5%, -10%, -15%
  • Star connection for 3 x 380 V various star connections possible
  • Power: 800 VA
  • Tertiary Output: 3 x 220 V windings
  • Delta connection for stabilizing the third harmonic voltage components
IT-6003 1
Resistive Load

  • Max Load in 3-Phase: 1200 W
  • Rated voltage: 380/220V
  • Connection Type: Y/
  • Rated voltage in single-phase: 220 V
IT-6004 1
Three-Phase Power Supply

  • Digital 3-phase analyzer
  • Input: 3-Phase 380V
  • Output Protection: 30 A current operated earth leakage circuit breaker
  • Four-pole motor protection switch: 6.3-12 A.
  • Three-phase indicator lamps
  • Output through 5 safety terminals: L1, L2, L3, N and PE
IT-6017 1
Power Circuit Breaker with Integrated PLC

  • PLC integrated inside
  • Contact Load: 400 VAC @ 3 A
  • Supply Voltage: Single-Phase from the mains
IT-6019 4
Double Busbar with Two Disconnectors with Integrated PLC

  • 2 Busbars for parallel lines operation
  • Having 2 outgoing feeders for connection / disconnection
  • PLC integrated inside
IT-6020/2 1
Double Busbar with Four Disconnectors with Integrated PLC

  • 2 Busbars for parallel lines operation
  • Having 4 outgoing feeders for connection / disconnection
  • PLC integrated inside
IT-6020/4 1
Moving Coil Ammeter (1000mA)

  • Range:  0-1000 mA AC
IT-6034 1
Moving Coil Ammeter (3A)

  • Range: 0~2.5 A  AC
IT-6035 3
Moving Iron Voltmeter (600V)

  • Range: 0-600V AC
IT-6037 2
Moving Iron Voltmeter (500V)

  • Range: 0-500V AC
IT-6038 3
Base Frame

  • 2-Level Frame
IT-2L 1
Leads (Accessory)

  • 1 set: 120 Pcs
IT-ACC 1set