Nvis 7089B Electrical Machines, Motors & Transformers Workstation up to 3HP

Electrical Machines is one of the most important area of study as it helps users to understand the operational characteristics and working of AC and DC Machines. Nvis 7089B enables the user to put their theory knowledge into practice with ease. There is an additional facility to make a wireless connection on the workstation with computer and to monitor real-time electrical parameters using computer interfacing software. Users can also observe a real-time graph between any of the AC and DC electrical parameters on a computer.

Electrical Workstation comprises of separate AC and DC measuring sections equipped with all the necessary instruments such as digital meters, facility to connect AC and DC Supplies along with protection devices such as Fuses, MCS's, Supply Indicators, etc. There are multiple buses provided on the Workstation to make external connections while performing AC and DC Machines Experiments.

The design of the control unit ensures to get the highest quality practical experience to the user. All the necessary protective measures are taken to avoid fault or danger.

- Compatible for Machines up to 3HP.
- Equipped with Measurement Facilities for Experimentation on AC Machines, DC Machines, and Transformers.
- Separate AC and DC Measuring Sections.
- Diagrammatic representation of AC and DC Machines for better understanding.
- Rust Free Powder Coating Paint.
- Standard BS terminals, patch cords for safety purpose.
- Terminals provided to obtain Three Phase Fixed as well as Variable AC and DC Supplies with suitable protection.
- High-Quality Digital Tachometer for RPM Measurement which is also interfaced with DAQ (Data Acquisition System).
- Motors provided with standard Mechanical Loading Arrangement Facility.
- Motors with "aluminum" casted Brak e-Drum/Pulley with he at suppression facility.
- Machines with Class 'B' Insulation.
- Flexible shaft coupling arrangement (Lovejoy) for Motor Generator (MG) Sets.
- Machines provided with Heavy Duty Base/Channel with suitable interconnection.
- Machines provided with suitable protections such as MCB's, Fuses, Motor Generator (MG) Sets provided with coupling protective cover.
- Generator with Electrical Loading Arrangement Facility.
- Durable good quality spring balance.
- Designed by considering all the safety measures.

+ Electrical Measuring Instruments

- AC Ammeter (4 Nos.)

Type: Digital
Range: 10A


- AC Voltmeter (4 Nos.)

Type: Digital
Range: 450V


- DC Ammeter (4 Nos.)

Type: Digital
Range: 30A


- DC Voltmeter (4 Nos.)

Type: Digital
Range: 300V


- Single Phase Wattmeter (2 Nos.)

Type: Digital
Range: 2.5kW


- DC Supply

Voltage: 300V ± 10%
Current: 2Amp


- Protective Devices
 
Three Phase MCB (TPN): 2 Nos.

+ DC Machines

- DC Shunt Wound Motor

• Study of Operational Working and Principle of DC Shunt Motor
• Study of running and reversing phenomenon of DC Shunt Motor
• Study of No Load Characteristic of DC Shunt Motor
• Study of Load Characteristic of DC Shunt Motor
• Study of speed control of DC Shunt Motor using armature voltage control and flux field control method
• Study and Determine the losses of DC Machine and correspondingly calculate the efficiency of DC Machine by Swinburn's Test Method


- DC Series Wound Motor

• Study of Operational Working and Principle of DC Series Motor
• Study of running and reversing phenomenon of DC Series Motor
• Study of Load Characteristic of DC Series Motor
• Study of speed control of DC Series Motor using armature voltage control and flux field control methods


- DC Compound Wound Motor

• Study of Operational Working and Principle of DC Compound Motor
• Study of running and reversing phenomenon of DC Compound Motor
• Study of Load Characteristic of DC Cumulative-Compound Wound Motor
• Study of Load Characteristic of DC Differential- Compound Wound Motor


- DC Shunt Wound Generator

• Study of Operational Working and Principle of DC Shunt Generator
• Study and measurement of Open Circuit Characteristic of DC Shunt Generator
• Study and measurement of External Characteristic of DC Shunt Generator
• Study and measurement of Internal Characteristic of DC Shunt Generator
• Study and obtain the losses separately and correspondingly. Determine the efficiency of a DC Shunt Machine by Hopkinson's test


- DC Series Wound Generator

• Study of Operational Working and Principle of DC Series Wound Generator
• Study and measurement of Open Circuit Characteristic of DC Series Generator
• Study and measurement of Load Characteristic of DC Series Generator
• Study and verify the Field Test of DC Series Machine and correspondingly determine the efficiency of DC Series Motor and Generator at any desire load


- DC Compound Wound Generator

• Study of Operational Working and Principle of DC Compound Wound Generator
• Study and verify the Load Characteristics of Long Shunt Cumulatively Compound Generator
• Study and verify the Load Characteristics of Short Shunt Cumulatively Compound Generator
• Study and verify the Load Characteristics of Long Shunt Differentially Compound Generator
• Study and verify the Load Characteristics of Short Shunt Differentially Compound Generator