ELECTRICAL CONTROL CIRCUIT FAULT TRAINER

ELECTRICAL CONTROL CIRCUIT FAULT
TRAINER

MODEL : EDT-ECP

The Edutech “Electrical Circuit Fault Trainer” is designed to provide a course on the operation and trouble shooting for electrical control circuits. It has unique training capabilities with a fault insertion system which is useful as a teaching aid in fault finding or troubleshooting the electrical control circuits. Students learn about manual and automatic control circuits that use magnetic contactors, thermal overload, timer, switches, push buttons and also MCB and ELCB as safety devices.

FEATURES:
This unit consists of various real industrial components that are common to electrical installation and control circuits. These components are mounted onto a training display board and their electrical connections are brought out to 4mm terminals. During the student exercises connections are made by test leads, which gives the student through the experiments, and provides the necessary theoretical background to allow students to successfully complete the educational objectives.
Connections between the components are made by using stackable 4mm test leads which plug into 4mm color-coded heavy-duty captive-head binding posts. Each component is equipped with up to four faults by using fault-insertion switches. A total of 30 faults are provided.

EDUCATIONAL OBJECTIVES:
• Familiarization of circuit protection devices and its work principle.
• Familiarization of earth leakage protection and over current protection installation.
• Install circuit of direct on line starter (DOL) circuit by using regulated cam switch.
• Explain work principle and trouble shooting of regulated cam switch.
• Install circuit of “start-stop three phase induction motor circuit completed by control safety devices.
• Explain work principle and trouble shooting of emergency switch and MCB.
• Install the thermal overload in power wiring and control wiring.
• Testing and setting a thermal overload.
• Explain the thermal overload work principle and trouble shooting.
• Install and check power lamp indicators and control lamp indicators
• Do trouble shooting of lamp indicators.
• Install and operate the three phase induction motor control from two locations.
• Explain the work principle of control from two or more location by using push buttons.
• Explain work principle and trouble shooting of push button.
• Install and operate the forward and reverse of three phase induction motor circuit by using magnetic contactors.
• Explain the methods to reverse the rotation of motor.
• Explain the magnetic contactor work principle and trouble shooting.
• Explain the effect of mechanical interlocking failure of magnetic contactors.
• Install circuit of three phase induction motor by using time delay relay and magnetic contactors.
• Explain the function, work principle of time delay relay and magnetic contactors.
• Analyze and trouble shooting of starting failure by using time delay relay and magnetic contactors.
• Install circuit of automatic star delta motor starting by using magnetic contactors and time delay relay.
• Analyze and trouble shooting of automatic star delta motor starting failure.
• Explain the effect of mechanical interlocking failure of magnetic contactors.