The complete toolbox for testing and analyzing high, medium and low voltage circuit breakers.

BT121G collects and stores qualitative information related to various components of circuit breakers and sectioners in order to make decisions on the quality of the breaker's performance based on this information.

BT121G applies various maneuvers to the breaker and extracts electrical and mechanical information from various parts such as main and auxiliary contacts, open/ close coils, spring charging motor, etc., and by displaying the results and drawing curves, it enables accurate analysis of the breaker's performance.

Features:

• 7-inch touch screen and graphics
• Measurement of time and motion
• Performance tests of coil, motor
• Special tests for contactors and non-operating mechanism breakers
• Ability to test the minimum voltage of the coils (optional)
• Graphical results for quick interpretation 
• Controlling of all operations by the device without the need for a computer
• Extremely reliable and easy to use 
• Battery and main line operated with fast charge

Time test: 

• Measurement, analyzing and sampling of open/ close time of contacts considering to issued command such as: Open, Close, Close-Open, Open-delay-Close, Close-delay-Open and Open-delay-Close-Open
• Measurement of Out of Sync of three main contacts
• Measurement of contacts bouncing time when there is open or close
• Measurement of spring charge time

Travel test:

• Sampling of contact movement and drawing curve
• Measurement of Open/ Close speed
• Measurement of total/ spring course of contacts
• Measurement and analyzing of rebounce and over travel

Coils/ Motor Current and Voltage Test:

• Measurement, analyzing and sampling coils voltage and current (AC, DC).
• Measurement, analyzing and sampling motor current (AC, DC).

Hardware abilities:

• Ability to test all circuit breakers
• Sampling rate of inputs: 10 KHz
• One additive encoder input and three inputs for linear sensors
• Ability to determine test parameters such as sampling duration time, coils excite time, and …
• Drawing curve of test results: movement and how the contacts connect and disconnect, coil current, motor current
• Displaying linear sensors/ encoder state, contacts state, voltage and current of coil/ motor
• Saving test results and transferring them to the computer
• Ability to print test result by internal printer
• Two inputs for coil and motor voltages (AC, DC)
• 16 inputs for contacts (three main contacts and 13 auxiliary contacts)
• Exciting of one close coil and two open coils
• Battery operated

PC Software abilities:

• Downloading tests stored in the device memory and saving them in the computer database
• Displaying contact movement curve, contact time performance curve, and coil current curve
• Calculating parameters at any desired time point
• Calculating contact and contact spring displacement, speed, over travel and rebounce, contact operation time and duration, contacts out of sync, maximum motor and coil current, contact spring charging time and . . .

Applications:

• Repair and maintenance of electrical power plant companies
• Electrical power plant EPC companies
• Electrical power labs
• Big factories e.g. Steel, petrochemicals, refineries, and...