TP48120A-HD15A1, TP48120A-HD15A2,
TP48200A-HD15A1, and TP48200A-HD15A2 Telecom
Power
User Manual
A Technical Specifications
Issue 03 (2020-01-04)
Copyright © Huawei Technologies Co., Ltd.
69
Item
Specifications
Input frequency
Range: 45-66 Hz; nominal frequency:
50/60 Hz
Power factor
≥ 0.99 (load ≥ 50%)
Total harmonic distortion (THD)
≤ 5% (load ≥ 50%)
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 sharing 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
If overvoltage occurs due to an internal
fault, the rectifier locks out.
If the external voltage is greater than
-63 V for more than 500 ms, the
rectifier locks out.
AC surge protection
Nominal lightning strike discharge current: 20 kA (8/20 µs); maximum lightning strike
discharge current: 40 kA (8/20 µs)
DC surge protection
Differential mode: 10 kA (8/20 µs); common mode: 20 kA (8/20 µs)
Safety and
regulatory design
IEC/EN60950-1
Mean time between
failures (MTBF)
200,000 hours (at 25°C)
