28-Day Test and Temperature Rise Apparatus for MCB (As per IEC 898-1987) Sensors 28-Day Test and Temperature Levitate Apparatus for MCB (as per iec 898-1987) is developed to perform the following: 28 days Test To perform 28 days Test, the MCB is exposed to 28 cycles, each cycle comprising 21 hours with rated current at an open circuit voltage of more than 30 Volt and 3 hours without current. The current is held constant within +/- 1 %. Inductors are employed for to increase current and reduce the power consumption. Sequential Timer is used to maintain the cycle. The battery micro controller based / Battery back up features maintain the date in case of Power Failure. Temperature Rise Test Temperature Rise Test also can be carried out with this panel with the help of Constant Current Source and Digital Temperature Scanner with 8 channels. Watt Loss Test The watt loss measurement at rated resistive current and at open voltage of 30 Volt is carried out with this panel. Digital Millivolt Meter is provided for Voltage measurement (Optional). Parameters and SpecificationMaximum Current Capacity:As per rquirement System Current Capacity: As per requirement System Program: 21 hours ‘on’ 3 hours ‘off’ PLC to program the required Cycle Current Set Up: Set up is meant to carry out current at any value from minimal to maximal 12 Channels Digital Temp.: To measure the terminal Indicator Temperature: 199.9 deg. C Din Fixture: For mounting 3 nos. MCB Step Down Transformer: Capacity (voltage) max. - 50 volts. Current - 60 amps Voltage Stabilizer: Servo type suitable capacity Other Information: Suitable load will be provided. Digital milli volts meter to pressure power load.
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