EVS Powers
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EVS power model of power supply is designed for communication infrastructure. It features an output voltage of 54V and an output current range of 0-50A. Its built-in protective features include input over/under-voltage protection, output over-current protection, and output over-voltage protection.
Outdoor Cabinet Communication Power Supply Design Product Performance:
The output power supply system offers high reliability with the following features and functions:
Environmental Conditions:
| No. | Items | Technical Specifications | Unit | Remarks |
|---|---|---|---|---|
| 1 | Operation Temperature | -25 to +50 | °C | |
| 2 | Storage Temperature | -40 to +85 | °C | |
| 3 | Relative Humidity | 10 to 90 | % | |
| 4 | Cooling | Air cooling with self-fan | ||
| 5 | Altitude | 70 to 106 | Kpa | |
| 6 | Storage Temperature Altitude Limit | 3000 | M |
Electrical Characteristics:
| No. | Items | Technical Specifications / Requirements | Unit | Remarks | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Input Characteristics | ||||||||||
| 1.1 | Input rated voltage | 200—240 | Vac | ||||||||
| 1.2 | Input voltage range | 90—264 | Vac | ||||||||
| 1.3 | Input Current | ≤8 | A | Lowest input voltage, rated load | |||||||
| 1.4 | Input voltage frequency | 50/60 | Hz | ||||||||
| 1.5 | Power factor | ≥0.99 | Rated input voltage, rated load | ||||||||
| 1.6 | Input Shock Current | ≤30 | A | 264Vac | |||||||
| 2 | Output Characteristics | ||||||||||
| 2.1 | Output Rated Voltage | 54 | Vdc | ||||||||
| 2.2 | Output current range | 0—50 | A | Input voltage: 176—264Vac | |||||||
| 0—95 | A | Input voltage: 90—175Vac | |||||||||
| 2.3 | Output voltage range | 53.5—54.5 | Vdc | ||||||||
| 2.4 | Efficiency | ≥95% | 220Vac input, output 54Vdc/25A | ||||||||
| ≥85% | 110Vac input, output 54Vdc/95A | ||||||||||
| 2.5 | Output ripple & noise | ≤200 | mVp-p | Rated load, frequency band limited to 20MHz | |||||||
| 2.6 | Turn-on output delay | 3—8 | S | Vin=220Vac | |||||||
| 2.6a | Output rising time | ≤200 | mS | Output voltage rises from 10% to 90%, rated load | |||||||
| 2.7 | Turn on/off overshoot | ≤±5 | %Vo | ||||||||
| 2.8 | Combined regulation | ≤±1% | |||||||||
| 2.10 | Transient Response | Overshoot | ≤ ±5 | %Vo | 5%—50%—25% or 50%—75%—50% load change | ||||||
| Recovery time | ≤ 200 | µS | |||||||||
| 2.11 | Phone weighed noise voltage | ≤2 | mV | ||||||||
| 2.12 | p-pk value noise | ≤400 | mV | 0—300KHz | |||||||
| 2.13 | Wide frequency noise voltage | ≤100 | mV | 3.4—150KHz | |||||||
| ≤30 | 0.15—30000KHz | ||||||||||
| 2.14 | Disperse noise | ≤5 | mV | 3.4—150KHz | |||||||
| ≤3 | 150—200KHz | ||||||||||
| ≤2 | 200—500KHz | ||||||||||
| ≤1 | 500—30000KHz | ||||||||||
| 3 | Protection Characteristics | ||||||||||
| 3.1 | Output overvoltage protection | 58.5—62 | Vdc | Locked | |||||||
| 3.2 | Input overvoltage (0A output) | protection point | ≥295 | Vac | Overvoltage, cut output | ||||||
| protection tolerance | ≥5 | Power module must restart when input voltage recovers to 264Vac | |||||||||
| 3.3 | Input undervoltage protection | protection point | ≤80 | Vac | Cut output | ||||||
| protection tolerance | ≥5 | Power module must restart when input voltage recovers to 90Vac | |||||||||
| 3.4 | Overtemperature protection | yes | Auto-recover at environmental temperature 50°C | ||||||||
| 3.5 | Output overcurrent protection | 0-50 | A | 220VAC Input, Auto-recover | |||||||
| 25 | 110VAC Input, Auto-recover | ||||||||||
| 3.6 | Output short-circuit protection | yes | No damage with short-circuit for long time | ||||||||
| 3.7 | Fan failure protection | The outdoor power supply module operates with half-load when single fan fails (160w when 220Vac input, 120w when 110Vac input), and alarms until the module turns off output because of overtemperature protection. When two fans fail, the module turns off output after alarm. | |||||||||
