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The 28 days Test Bench can work in single as well as three phase mode

28 Days Test Bench (Single Phase & Three Phase)(IEC 60898-1 Clause 9.9)

Lab Test

The SCR Elektroniks 3 station MCB 28 Days and Temperature Rise Test Bench is economically designed to verify the 28 Days Test (21 hr ON, 3 hr OFF Test) as per clause 9.9 of IEC 60898-1 and Temperature Rise of the parts of a Circuit Breaker specified in Table 6 of clause 8.4.1 measured under the conditions specified in clause 9.8.2 of IEC 60898-1.

This test equipment also covers testing as per Indian Standard IS 8828 as well as Indonesian Standard SNI 8528-1 (BSN)

Stand alone unit after initial configuration of test parameters: The panel is capable to generate accurate test results for a continuous period of 28 days as required in the 28 days test.

Cooling shall be provided by means of optimally placed Exhaust fans distributed all over to remove the hot air generated inside the panel cabinet.

Inductors with tapping for each range will be provided for maintaining the open circuit voltage to 30V. This eliminates energy wastage during test.

Microcontroller based timer unit for quick and easy user interface and automated operation

Servo controlled mechanism to control current (+/- 1%) against incoming fluctuations

User may opt for test bench with heating chamber for testing at 60 o C.

Power Loss Measurement available as an extra feature.

Single / Three Phase operation possible

Digital Volt Meter with 5 ranges (200mV, 2V, 20V, 200V, 250V) to measure open circuit voltage & mV drop across MCB

0.5A to 125A at 30V open circuit Voltage CT range 2A, 5A, 10A, 25A, 50A, 100A, 200A

50 / 60 Hz operation as per incoming line frequency

Overall accuracy of the panel is better than class 1.0

Digital Temperature Indicator with input from thermocouple

Total current range 0 to 200 A

Digital Ammeter with CT (Indication on servo controller)

Class 1 Accuracy

The product can be customized as a PC based variant or a non PC based (micro-controller based, low cost). In addition, the product comes in 3,6 and 9 stations as desired by the user. A temperature chamber can be optionally integrated. Temperature rise test (Cl 8.4.1 with data logging for PC based variant) can be integrated. Another test, measurement of power loss, as per Cl 9.8.5, can be additionally integrated. (A similar equipment is offered to test RCCBs and RCBOs for endurance testing that differs in design, please refer the relevant section if you are interested)

The product is used to test MCBs as per Cl 9.9 IEC 60898, Indian Standard IS8828, Indonesian Standard SNI 8528-1 (BSN).

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