Communication Backup Power Solutions
The use of outdoor communication cabinets in mobile marginal network back-up power solutions.
Wireless marginal site points are mainly distributed in some provinces in remote areas, located in a poor grid environment, resulting in communication, transmission interruption repeatedly occurs, in response to customer demand timely launched a new generation of outdoor communication cabinet UPS system, and in a mobile marginal network to obtain the scale of use.
Solution: The system consists of outdoor communication cabinet type 2KVA UPS, C-class lightning protection, outdoor cabinet battery cabinet and expansion charger, 100AH telecommunications-grade battery.
The outdoor communication cabinet 2KVA UPS is designed for the integration of marginal network requirements, and each part of the design takes into account the grid and temperature environment in which the marginal network is located. Outdoor type 2KVA UPS has 2 AC output, all the way for transmission, all the way for wireless equipment. The backup time for built-in light transmission can be extended by stopping power to the wireless device when the battery voltage is below the set value (the default 72V). This dual power-down capability gives the UPS system the flexibility to meet different power-making requirements, reducing maintenance workload and increasing customer value. This systematized solution is currently a leader in its peers in the industry.
1 Special UPS
Low requirements for the grid: In fact, the marginal site sites of mobile communications are located in remote areas and in a harsh grid environment. If most of the power supply comes from the agricultural network, poor maintenance quality of the power grid, frequent power outages, power peak will be abnormally low voltage, electricity trough is abnormally high voltage, grid fluctuations often exceed 20%. EMERSON 2K outdoor UPS adopts a digital online dual-transformation structure, which eliminates grid spikes and noise interference with calls more than backup UPS, and the working input voltage is 150VAC-310VAC wide, with a frequency range of plus or minus 10% or more, which can fully adapt to the harsh power grid.
High-pressure protection: it can withstand 400VAC without damage for a long time.
2 Adaptable to harsh environment
The use of natural cold UPS module, outdoor cabinet rain and dust resistance is more excellent, the outdoor working environment is harsh, fan life is short, in the northern sand and dust serious areas no more than half a year. The UPS system with fan and dust net, because the micro-base station can not replace the dust net regularly, will cause upS heat dissipation, resulting in overtemperature failure, component acceleration aging failure. The use of naturally cold UPS can completely avoid this problem.
Wide working environment temperature: outdoor-specific UPS operating temperature between -40 degrees C and 55 degrees C, digital-controlled UPS in this environment no temperature drift, aging drift, high reliability.
Lightning surge protection: A D-class lightning protector with 6KV/3KA as standard, optional 20KA.
3 Advanced and powerful technology
The use of advanced all-digital control technology, high system stability, with self-protection and troubleshooting capabilities.
E1 and dry contact communication interface, easy access transmission system monitoring. And can provide accessories to the base station to send a second power dry contact signal.
High efficiency: The digital dual-transformation structure makes UPS efficient at 89%, less than the temperature of the frequency machine with an efficiency of only 75%, and the temperature rise in the cabinet is not more than 5 degrees C at a full load of 55 degrees C.
Short conversion time: Power-down switch battery time 0ms.
4 Easy to install and maintain
Provide a variety of optional installation accessories, can meet the holding big rod, holding small rod, wall hanging and landing and other installation requirements, ordinary small power UPS can only float charging, charging power does not exceed 25% of the POWER of THE UPS rectifier, insufficient charging capacity led to frequent power outages in the area of battery capacity will be rapidly reduced. 2K transport outdoor UPS can be parallel expansion of the all-floating charger, charging power, charging speed, so that the battery capacity quickly recovered.
With temperature compensation.
Special outdoor battery cabinet
1 Anti-high temperature design.
High temperatures have a huge impact on battery life, and for every 10 degrees C increase in ambient temperature, battery life will be reduced by 50%. If the daytime temperature exceeds 50 degrees C for 3 months, the battery life will be reduced by 50%. In the summer sun,” the surface temperature of the outdoor cabinet can exceed 60 degrees Celsius. Network Energy newly developed outdoor special battery cabinet outdoor communication cabinet, increased sun visor, insulation layer and other measures, and strive to make outdoor communication cabinet temperature reduced to indoor temperature.
2 Anti-low temperature design.
Battery capacity in low temperature drop rapidly, universal battery at less than -15 degrees C capacity will drop to less than 60%, and at -10 degrees C of charging reaction is very slow, resulting in difficult to recover after discharge. If the electricity is not recharged in time after the release, there is a risk of freezing when the temperature is below -30 degrees C.
Because heat dissipation is considered in summer, there is a heat sink in the integrated cabinet, and the cabinet is not insulated, so the integrated cabinet of the built-in battery outdoor communication cabinet is not suitable for harsh environments. Outdoor special battery cabinet, optional heating plate, with 2 levels of temperature control, and thermal insulation and other measures, so that the telecommunications-grade battery at temperature -30 degrees C can work normally, -40 degrees C is not frozen.
3 Built-in charging plate.
2KUPS charging current is generally around 6A, suitable for short-term power-ready standard-label charging. The outdoor special battery cabinet has a built-in battery charger and an all-float conversion and temperature compensation, allowing the system to expand the power-ready time at will.
4 Environmental adaptation design.
Outdoor special battery cabinet outdoor cabinet protection standards and outdoor UPS adopt the same standards, up to IP55.
From the use of many areas, an important factor in the failure of the marginal network power-making system is that the battery capacity is rapidly reduced due to too frequent deep discharge, and the power-ready time is shortened, resulting in communication interruption. Telecommunications-grade batteries are designed for small current, deep discharge requirements, using a special formula, the temperature adaptability is strong (-39 degrees C-75 degrees C can safely float operation), 25 degrees C floating life of up to 12 years. Sealing, safety valves and other key components for the special design, after 4 years, 30,000 online actual inspection, in the absence of air conditioning environment to use good results. In contrast:
Universal battery cost is low, but not suitable for small current, deep discharge, the standard use of the temperature range of 20 degrees C-25 degrees C, design life is short, in the marginal network environment will be shorter life.
Colloid battery high temperature performance is good, but low temperature performance is poor, not suitable for a certain area of winter use. At present, the process of stable colloidal batteries are imported, high cost (more than 100% higher than telecommunications-grade batteries), long lead time, future maintenance (spare parts supply) difficult.
Low-temperature battery, low-temperature performance greatly improved, at minus 40 degrees C can still release more than 30% of the capacity, but the cost is 30% higher than the telecommunications-grade battery, and room temperature performance slightly affected.
Telecommunications-grade batteries use 100AH, in addition to extending the power-ready time, there are the following reasons:
Battery capacity will decrease in winter, at 0C will drop to about 80%, higher capacity to ensure adequate winter capacity.
The shrinking of battery capacity in marginal network environment will be faster, and the use of higher capacity batteries can extend the service life, reduce maintenance workload and reduce the total cost.
Higher capacity batteries reduce the depth of discharge and reduce damage to the battery due to prolonged power outages.
Companies adhere to the “rely on science and technology enterprises, rely on quality survival, innovation and development” business principles, market demand-oriented, by virtue of many years in the field of communication network physical connectivity from all walks of life technical advantages and engineering construction experience, optical communication transmission wiring equipment technology development and outdoor communications cabinet, outdoor communication cabinet product manufacturing as the main business, and committed to wireless network product development and manufacturing.