First, install the
1 access to electricity (in accordance to the standard left-zero right-wiring fire)
① access equipment must ensure that the input wire diameter ≥ 10mm2 copper wire
② access device input and output line cards screws must be tightened
③ input and output lines shall not be reversed
④ front of the unit can not be replaced by air leakage protection switch
(2) access to the load
Load power can not exceed the power supply's maximum power: 15KVA. General load was 15KVA × 0.8 = 12KVA)
① All output lines must be connected to tight-wire interface, otherwise it will result in a larger line because the current heating, to affect the effective power.
3 Open the power supply (non-first on the load, then turn power supply)
① Please ensure that your computer monitor is turned off, open the power supply.
② Open the input Transformer suppliers before measurement should be (145-260V between).
③ look at the output voltage of the machine comes with the table should be 220V.
Second, the failure phenomenon and the reasons
1 post no instructions, no output
① Input voltage-free (check the input line).
② Insurance tube rupture (replacing the same fuse).
③ boot trip (check out line or air switch [may refer to one, ④]).
a transformer is being processed clutter
b volatile external voltage transformer fever more serious, long working hours under the harsh network, should be properly shut down the cooling.
④ can not drive more than one computer, an alarm
a input voltage is lower than 175V, when the input voltage drops below 175V, the power supply does not guarantee adequate power output.
b Input voltage 220-230V, 20-25 but the computer table and open to the input Line conditioning drops, each opening a produce (1-3) V voltage drop, causing the input voltage drops below 175V, so the machine alarm. This situation is caused by the input circuit, the input circuit produces a voltage drop, need to replace the input circuit environment. Check the input line.
(2) immediately after power is turned on the alarm
① monitor does not shut down (charge will cause the display to produce a large current, beyond the power supply range), immediately turn off the monitor, the device with a load switch is strictly prohibited.
3 had live outside the machine
① no real ground wire or ground (real earth under the earth wire should be 3 m)