The SCR Elektroniks 3 station Switch Endurance Test Bench is designed to verify the endurance testing of household and rocker switches as per IEC 60669, IS 3854 and BS EN 60669. Typical switch ratings covered are for the entire range (typically 6 – 45 A) for both 3 phase and single phase loads. The tests included (that can be customized) are as follows: 1. Normal Operation (Referred to as Cl 19.1 in IEC 60669, IS 3854 and BS EN 60669) 2. Making and Breaking Capacity (Referred to as Cl 18.1 in IEC 60669, IS 3854 and BS EN 60669) 3. Temperature Rise (Referred to as Cl 17 in IEC 60669, IS 3854 and BS EN 60669) 4. Fluorescent Lamp Load (Referred to as Cl 19.2 in IEC 60669, IS 3854 and BS EN 60669) 5. Tungsten Filament Lamp Load (Referred to as Cl 18.2 in IEC 60669, IS 3854 and BS EN 60669)
Stand-alone unit after initial configuration of test parameters: The panel is capable to generate accurate test results even after days of continuous operation with no loss of data.
Single / Three Phase operation possible
Servo controlled mechanism to control current (+/- 1%) against incoming fluctuations
CT range selection for current measurement accuracy
Load selection is selector switch based: Quick and easy
PLC based timer unit (Siemens Logo or Siemens S7 with touchscreen) for quick and easy user interface and automated operation: Easy setting of parameters such as on time, off time, no. of cycles and threshold consecutive contact weld, contact open cycles
Accurately designed iron core inductors (Optional air core inductors as per customer specifications) for circuit parameter accuracy. Specially designed fixture for safe operation with operator safety in view
Cooling shall be provided by means of optimally placed Exhaust fans distributed all over to remove the hot air generated inside the panel cabinet: This avoids change in circuit parameters as a result of over heating of loads
Ceramic core wire wound resistors with enamel coating: This ensures best quality of resistors that have a favourable resistance v/s temperature rise graph enabling operation for an elongated duration with accuracy
Temperature rise test can be integrated with the main endurance test
PC based option available: Complete PC data logging and control plus online plotting of temperature rise graphs
Total Voltage and current range of the source: 200-270 V , 6-57 A AC (Depending upon the switch ratings selected)
Load Current options: 6, 10, 13, 15 16, 20, 25, 32, 45 Amp for Normal Operation and 1.25 times 6, 10, 13, 15 16, 20, 25, 32, 45 Amp for Making-Breaking test (Also respective test currents for fluorescent lamp load (Load A and Load B) and tungsten filament lamp load). Rated Voltage Options: 220 V, 230 V, 240 V and 250 V (As per user specifications)
Power Factor: 0.3 for Breaking Capacity and 0.6 for Normal Operation
User Specified Number of Phases: 3 phase or 1 Phase
For temperature rise test: k type Cr / Al thermocouples with upto 12 temperature channels (customizable) per phase
50 / 60 Hz operation as per incoming line frequency
Pneumatic Pressure: approximately 8 bar. Class 1 Accuracy (for current and voltage display)
The number of stations, discrete current ratingd, PLC / microcontroller / PC based, tests as per BIS, IEC, BS, etc. can be customized. The system can also be clubbed with socket endurance bench wherein the source and load are common, thus giving a economical solution. The fixtures are designed exactly as per the customer samples.
The product is used to test the endurance of switches when subjected to repititive strokes with an inductive load at the output. The product also identifies the number of cycles it withstands before 'contact open' or 'contact weld' condition is detected thus giving an exact quality assesment of the switch under test. The customer can even test its own and competitor's product and compare the performance
