Second Generator For Power System Trainer

Product Description

Description:

A self-contained motor and generator set that operates as asecond generator for Power System Trainer. It provides extra experiments andstudies into power generation. The motor and generator set consists of twocoupled machines mounted in the base of the control console. Manual or differenttypes of automatic excitation control the output of the generator. A vectordrive controls the speed of the motor. Digital meters show the conditions ofthe prime mover and generator. The relays show students how actual generatorsare protected and the different ways that they are protected. Students can setthe relays from their control panels. The relays also include sockets to linkthem to a suitable computer  for moredetailed programming, if needed. The relays operate the circuit breakers aroundthe second generator. The circuit breakers also include hand-operated switches,and lamps. The lamps show whether the circuit-breaker is open or closed.

Specifications:

Net Dimension: 2100 mm long x 2000 mm high x 1500 mm frontto back. Allow an extra 500 mm to its left side for power connections, and anextra 1500 mm at the back when access doors are open.

Weight: 930 kg

Approximate packed volume and weight: 5 m3 and 1500 kg

Generator and motor:

1. 6 kVA maximum (operated at a nominal 2 kVA), four-polesalient pole a.c generator. Brushless with automatic and manual excitation.
   
2. 7 kVA maximum induction motor with shaft encoder and electronicfour-quadrant a.c vector drive control.
   

Relays:

1. Generator bus protection: over current and earth fault
   
2. Generator protection: over speed and under speed, overvoltageand over current, and loss of mains
   

Meters:

1. 2 x multi-function meters to show voltage, current and power
   
2. 4 x digital meters to show generator excitation voltage andcurrent, prime mover speed and generator load angle
   

Distribution transformer:

1. 220 V to 110 V delta-to-delta with adjustable primarytappings and an earthing transformer to the secondary windings
   

Generator transformer:

1. 220 V to 220 V delta-to-star with adjustable secondarytapping and an earth link for the secondary star point