EV MODULE FOR PARALLEL OF GENERATORS Mod. PCB-2/EV

Features

The module for the parallel of an alternator with a second alternator or with the mains, contains the control devices for the sets of three voltages and the actuators for the paralleling operation. It enables to learn and test the methodology for paralleling alternators, with actual industrial components. The various installed devices, partially connected with each others and with safety terminals, are set at work with very simple and quick operations and they enable to modify the circuits at operator’s discretion (connecting or disconnecting the devices).

The control devices of the sets of three voltages used in the panel are exactly the same as in industrial plants. So the sequence of operations for the parallel is exactly the same as that necessary in industrial plants. As this is a training system, the control and parallel operations with the mains are intentionally left to the operator so that he/ she can understand the method.

SKU: Machines

Category: Electrical Machines, Power Generation, Distribution & Consumption

Product Details

The fore panel is made of aluminium alloy, the apparatuses are represented with the international electric symbols, and terminals with a high degree of protection against accidental contacts enable to assemble the circuit according to the represented diagram. The fore panel represents a system of bars where the parallel of generators can be implemented with proper control devices and actuators. The bar system shows an output shunt for power distribution with protection against over-current and earth fault. The control module includes a double voltmeter, a double frequency-meter and three lamps to indicate immediately the electric parameters of the sets of three voltage to be paralleled and a LED synchronoscope to point to the exact moment of parallel. Moreover a digital power analyzer is available with interface RS485 to acquire the parameters on a personal computer.

TECHNICAL CHARACTERISTICS:

Framework is made of chemically treated sheet steel, painted with many epoxy coats; the base is provided with rubber feet and it enables to couple the machines in a very quick way. All the necessary electric components for the proper operation of the module are included in the panel.

Main installed components:

  • 1 differential automatic magneto-thermal switch ln =10 A ldn= 30 mA, A-type, with minimum-voltage releasing device and emergency pushbutton with mechanical holding
  • Single-phase output sockets for powering the power generation panels and various accessories.
  • Double 500-Vac voltmeter for comparing the sets of three voltages having to be paralleled.
  • Double 45-65 Hz (400 Vac) frequency-meter for comparing the frequencies of the sets of three voltages having to be paralleled.
  • 1 LED synchronoscope of 400 V, 50-60 Hz.
  • 1 three-lamp sequence indicator for voltage of 400 V
  • Electromagnetic contactors of 25 A AC3, provided with start stop buttons.
  • 1 three-pole magneto-thermal automatic switch adjustable between 2.4 and 4 A
  • 1 four-pole differential automatic switch In = 25 A Idn = 30mA, A type.
  • 1 Digital electrical power analyzer to be used with balanced or unbalanced systems with neutral, for measurement of voltages, currents, active, reactive and apparent power, peaks of maximum active, reactive and apparent power, active and reactive power counting, cogeneration counters. The analyzer includes a wide, high contrast, LCD display, five languages menu, organized in pages. Four pages can be programmed for a quick visualization of the preferred parameters. Complete with two programmable relays (for any parameter selected among any of the measured ones) with maximum and minimum alarm functions. The analyzer is provided with an interface RS485 for data acquisition with Personal Computer.
  • Power supply: 230 Vac 50 Hz single-phase - 3 kVA (Other voltage and frequency on request)
  • Dimensions: 840 x 450 x 680 mm
  • Net weight: 38 kg
More Information

TRAINING PROGRAM:

Training refers to the study of instruments and techniques for connecting alternators in parallel with one another and with the mains. The range of application of these devices is related to both big high-voltage power plants and to small autonomous and/or low-voltage co-generation plants.

Main subjects dealt with:

  • Regulation of prime mover to generate a compatible set of three voltages for the parallel with the mains
  • Determination of the closing moment of the parallel device
  • Synchronous machines in parallel with one another and with the mains
  • Overload and loss of parallel of synchronous machines