1. POWER FACTOR CONTROLLER 

2. SIGNAL CONDITIONERS AND ISOLATORS

3. MEASURING PADS
4. DATA LOGGERS

5. BLDC DRIVES

1. NATIONAL INSTRUMENTS - PRODUCTS AND SOLUTIONS 

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1. POWER FACTOR CONTROLLER

The energy saving consciousness of BIT-SYS resulted in developing a state of art solution for power industry. BIT-SYS developed a DSP based solution for automatic improvement of power factor for small and medium load power consumers. Motorola DSP 56F805 is exploited to device a power factor measurement technique along with other parameters like - line voltages, load currents, capacitor currents and system frequency. The other parameters - active power, reactive power, peak load demand etc are derived from the above actual measurements.

The capacitor banks are switched on/off smoothly with zero crossing sensing of the power line frequency. Fully solid state electronic components are used as a switching devices for the capacitor banks. A set of 3 phase capacitor banks are mounted in the panel according to the capacity required.

The DSP based controller unit is a panel mount instrument incorporated in the panel as the master device for the application. The CT and PT connections from the field are brought to the power factor panel and terminated to the controller. LED display and keyboard are provided on the unit for display of the measured parameters in sequence. The unit measures continuously the power factor and controls the switching of the capacitor banks to maintain the reactive power minimum. The parameters are measured using the voltage and current waveforms recorded.

• Motorola DSP based solution

• Completely solid state switching devices for capacitor bank switching 

• Configurable for single and 3 phase applications

• Synchronized switching characteristics

• Real time clock support with built in diagnostic

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2. SIGNAL CONDITIONERS AND ISOLATORS

These modular products are designed specifically for process control and instrumentation interfaces for industrial environment. DIN rail mountable compact modules includes for universal inputs like thermocouple signals, RTD sensors, Strain gauge elements, millivolts and milliamperes etc. Isolator modules have wide bandwidth with fast response which shall be useful for acquiring relatively fast sensor signals like DC currents. This modules are designed with no manual adjustments for span and gain adjustment.

• Modular and compact design

• DIN rail mountable

• Fast response and accuracy

• No manual tuning and adjustments are required

• Very high isolation level between inputs and outputs 

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3. MEASURING PADS

These are mainly compact versatile block boxes which measures process signals in floating condition. The measuring pads are geographically distributed in the plant and networked using a single network cable. These isolated measuring pads digitizes the analog values and the binary status information and send to the network masters through the network cable. Each unit is designed to handle 8 no. of I/Os.

• Supports all types of universal inputs

• Floating measurements of process signals

• Open end network

• Mod bus protocol communication

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4. DATA LOGGERS

The data loggers are developed mainly for portable applications. These data loggers are stand alone and versatile type with built-in diagnostic features, menu driven operating procedures, high speed switching circuits and programmable filters. These data loggers are very compact and battery operated. The units are custom configurable using basic modules for I/O operations.

• Table-top and compact design for field applications
• Accepts universal inputs
• Menu driven operations
• Built-in calibration and debugging

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Brushless DC (BLDC) motor drives is an advanced technology solution for variable speed DC motors. It is a DSP based product employing complete solid state power switching techniques. The Classical commutator for DC motors is eliminated by electronic commutating circuit. The commutation timing, start-up sequence, firing MOSFET switches, protection of power devices, measurement of critical parameters, handling of speed control loop and online reporting with diagnostic through serial port or handled by a powerful hybrid type DSP chip from Motorola. The product is developed for aero-space applications of US Federal Government.

• Motorola DSP based solution
• Up to 12000 RPM
• 20 ampere switching load current
• Electronic commutator circuit
• Universal design for variable ratings

 
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