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Description
2400 A combined cabinet, supports flexible power distribution
Apply to 220/380 V AC power grids
Installed on a concrete floor or an ESD floor
Site monitoring unit: SMU05A
Supports a maximum of forty-eight R4850G2s, R4850N2s, or R4850S1s
A single TP482000B cabinet has a maximum capacity of 144 kW,
If multiple cabinets are interconnected, the capacity can reach 720 kW
The TP482000B is Huawei’s fourth-generation high-performance indoor telecom power system. The system supplies reliable –48 V DC power to equipment in central equipment rooms. The TP482000B is available in four different models of combined cabinets, each of which contains an AC power distribution unit (PDU), a DC PDU, rectifiers, and a site monitoring unit (SMU). Each cabinet has a maximum capacity of 2400 A.
The TP482000B supports cabinet interconnection. TP482000B cabinets of the same model can be interconnected, and TP482000B cabinets can also be interconnected with TP483000D AC cabinets and DC cabinets.
Tech Specs
| Configuration | ||
| Item | TP482000B-N20B1 Typical Configurations | TP482000B-N20B1 Flexible Configurations |
| AC input system | 220/380 V AC three-phase four-wire | |
| AC input terminal | Two 3-pole 200 A terminal blocks | |
| Load route | Layer 1: six 500 A NT3 fuses
Layer 2: six 160 A NT00 fuses, six 100 A NT00 fuses |
Layer 1:
Six NT1 fuses, six NT2 fuses, six NT3 fuses Twenty-four 63 A circuit breakers or sixteen 100 A circuit breakers
Layer 2: Twelve NT00 fuses Twenty-four 63 A circuit breakers or sixteen 100 A circuit breakers |
| Rectifier circuit breaker | Forty-eight 1-pole 32 A circuit breakers | |
| Rectifier | Forty-eight R4850G2s, R4850N2s, or R4850S1s | |
| AC surge protection | Two 20 kA/40 kA SPDs
Two 4-pole 32 A SPD circuit breakers |
|
| Battery route | Two groups of two 1250 A NT4 fuses connected in parallel | |
| Battery current monitoring | Two 2000 A/25 mV shunts | |
| Total load current monitoring | One 2000 A/25 mV shunt | |
| DC power indicator | One DC power indicator (green) | |
| System alarm indicator | One system alarm indicator (red) | |
| DC surge protection | DC SPD (10 kA in differential mode, 20 kA in common mode, 8/20 µs) | |
| Monitoring unit | SMU05A | |
| Signal monitoring | Power distribution monitoring unit | |
| Cabinet Specifications | ||
| Power system dimensions (H x W x D) | 2000 mm x 600 mm x 600 mm | |
| Weight | < 150 kg (excluding rectifiers) | |
| Protection level | IP20 | |
| Installation mode | On a concrete floor or ESD floor | |
| Maintenance mode | 2400 A cabinet: Maintained from the front or rear (at least 400 mm away from a wall)
1200 A cabinet: front maintenance |
|
| Cabling mode | AC cables are routed in and out from the bottom or top. DC cables are routed out from the top and can be routed out from the bottom if a side compartment is added. | |
| Cooling mode | Natural cooling | |
| Electrical Specifications | ||
| AC input | Input system | 220/380 V AC three-phase four-wire |
| Input frequency | 50/60 Hz (range: 45–66 Hz) | |
| Power factor | ≥ 0.99 (rated load) | |
| Total harmonic distortion (THD) | < 5% (rated input; 50%–100% load) | |
| 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% | |
| Psophometrically weighted noise | ≤ 2 mV (300–3400 Hz) | |
| Peak-to-peak noise | ≤ 200 mV (rated input voltage and load; bandwidth ≤ 20 MHz) | |
| AC input protection | AC input overvoltage alarm threshold | 290 V AC ±10 V AC (rectifier input voltage), hysteresis ≤ 10 V AC |
| AC input undervoltage alarm threshold | 170 V AC ±10 V AC (rectifier input voltage), hysteresis ≤ 10 V AC | |
| AC input overvoltage protection threshold | 305 V AC ±10 V AC (rectifier input voltage), 5 V AC ≤ hysteresis ≤ 15 V AC | |
| AC input undervoltage protection threshold | 85 V AC ±3 V AC (rectifier input voltage), hysteresis > 5 V AC, max. undervoltage protection recovery threshold 90 V AC ±3 V AC | |
| DC output protection | DC output overvoltage alarm threshold | Default value: –58.5 V DC ±0.3 V DC |
| DC output overvoltage alarm recovery threshold | Default value: –58.0 V DC ±0.3 V DC (0.5 V DC lower than the overvoltage alarm threshold) | |
| DC output undervoltage alarm threshold | Default value: –45.0 V DC ±0.3 V DC | |
| DC output undervoltage alarm recovery threshold | Default value: –45.5 V DC ±0.3 V DC (0.5 V DC higher than the undervoltage alarm threshold) | |
| Others | 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 compliance | IEC/EN60950-1/GB4943 | |
| Mean time between failures (MTBF) | 500,000 hours (30°C) | |
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