4.3.3 AC CABLE REQUIREMENTS FOR 25kVA, 120 VAC AC INPUT RATINGS. ............................. 35
4.3.4 AC CABLE REQUIREMENTS FOR 25kVA, 120/240 VAC INPUT SYSTEM. .............................. 35
4.3.5 AC CABLE REQUIREMENTS FOR 25kVA, 208 VAC INPUT SYSTEM.. .................................... 35
4.3.6 AC CABLE REQUIREMENTS FOR 25kVA, 220 VAC INPUT SYSTEM ..................................... 36
4.3.7 AC CABLE REQUIREMENTS FOR 25kVA, 240 VAC INPUT SYSTEM ..................................... 36
4.3.8 AC CABLE REQUIREMENTS FOR 25kVA, 480 VAC INPUT SYSTEM ...................................... 36
4.3.9
TORQUE TABLE FOR ALL TERMINATIONS
........................................................................ 37
4.4 INSTALLATION OF THE UNITS ............................................................................................ 60
4.4.1 INSTALLATION OF THE STATIC BY-PASS SWITCH (SBS) .................................................. 39
4.4.2 INSTALLATION OF THE INVERTERS ................................................................................ 40
4.5 SWITCHING ON THE INVERTER SYSTEM ............................................................................. 40
5 PERFORMANCE TESTING ................................................................................................. 42
5.1 PRELIMINARIES TO PERFORMANCE TEST ........................................................................... 42
5.2 TEST EQUIPMENT .............................................................................................................. 43
5.3 TEST OF THE INVERTERS ................................................................................................... 43
5.3.1 INVERTER TEST ACTIVITIES ........................................................................................... 43
5.4 TEST OF THE SBS UNIT ...................................................................................................... 45
5.4.1 SBS TEST ACTIVITIES .................................................................................................... 46
5.5 FINAL STEPS ...................................................................................................................... 47
6 MAINTENANCE ................................................................................................................. 47
6.1 USE OF THE MANUAL BY-PASS SWITCH .............................................................................. 47
6.2 EXCHANGE OF UNITS ......................................................................................................... 50
6.3 UPGRADING THE SYSTEM .................................................................................................. 51
7 DESCRIPTION OF FUNCTION ........................................................................................... 51
7.1 TOTAL SYSTEM .................................................................................................................. 51
7.2 INVERTER .......................................................................................................................... 52
7.2.1 MONITORING THE INPUT VOLTAGE ............................................................................... 52
7.2.2 MONITORING THE OUTPUT VOLTAGE ............................................................................. 54
7.2.3 MONITORING THE TEMPERATURE .................................................................................. 54
7.2.4 OVERLOAD BEHAVIOR .................................................................................................... 54
7.2.5 SHORT-CIRCUIT BEHAVIOR ............................................................................................ 55
7.3 ELECTRONIC SWITCHING/SBS UNIT ................................................................................... 55
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