TP48200A-D17A5-2 Telecom Power
User Manual
A Technical Specifications
Issue 04 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
57
Item
Specifications
Input frequency
Frequency range: 45–66 Hz; nominal
frequency: 50 Hz or 60 Hz
Power factor
≥ 0.99 (load ≥ 50%)
THD
≤ 5% (Vin: 208 V AC, 220 V AC, or 230 V
AC; load: 50%–100%)
DC output
Output voltage range
–42 V DC to –58 V DC
Default output voltage
–53.5 V DC
Output power
Maximum output power = Output power of
a single rectifier x Number of rectifiers
Regulated voltage precision
≤ ±1%
Ripple and noise
≤ 200 mVp-p
Psophometrically weighted noise
≤ 2 mV
Current imbalance
< ±5% (20%–100% load)
AC input
protection
AC input overvoltage protection threshold
> 300 V AC
AC input overvoltage recovery threshold
When the voltage is restored to 290 V AC,
the output resumes.
AC input undervoltage protection
threshold
< 85 V AC
AC input undervoltage recovery threshold
When the voltage is restored to 90 V AC,
the output resumes.
DC output
protection
DC output overvoltage protection
threshold
–58.5 V DC to –60.5 V DC
1.
If overvoltage occurs inside a rectifier,
the rectifier locks out.
2.
If the external voltage is greater than
–63 V DC for more than 500 ms, the
rectifier locks out.
AC surge
protection
Nominal lightning strike discharge current: 30 kA (8/20 µs); maximum lightning strike
discharge current: 60 kA (8/20 µs)
DC surge
protection
15 kA (8/20 μs) in differential mode; 40 kA (8/20 μs) in common mode
Safety compliance
IEC/EN60950-1
Mean time
between failures
(MTBF)
200,000 hours (at 25º
C)
