(1) The equipment placement site should be an “industrial type” hard cement horizontal ground. If anti-static raised floor is used, the bracket for installing equipment needs to be designed and manufactured based on the average load capacity of the floor and the weight of the UPS.
For most large UPS models, the standard cable type is bottom in and bottom out. The ventilation inlet of the UPS cabinet is located on the front or side of the cabinet, and the exhaust outlet is located on the top or back of the cabinet. Therefore, when installing UPS, users are required to prepare cable laying trenches in advance. The depth of the sea is about 40cm. When users use cable trays for cable laying, they should choose cable models with upper inlet and upper outlet.
(2) The UPS power supply system should be installed in a clean air operating environment with good ventilation, coolness, low humidity, and dust-free conditions. Although the temperature range allowed by a typical UPS is between 0 ° C and 4 ° C. However, if conditions permit, the ambient temperature should be controlled below 35 ℃. The recommended working temperature for UPS manufacturers is 2 (TC~25C). It is advisable to control the humidity at around 50%. In addition, flammable, explosive, or corrosive gases or liquids should not be stored in the room where UPS operates.
(3) It is strictly prohibited to install UPS in a working environment with metallic conductive dust, otherwise it may cause short circuit faults in the equipment. It is also not advisable to place the cups near a heat source.
(4) Regardless of whether the UPS battery pack is equipped with a charger with temperature compensation. In order to ensure the service life of the reef battery pack, the temperature of the battery room should be controlled between 20-25 ° C.
(5) There must be a 50mm space on the left and right sides of the UPS, and a 100mrn space at the back to ensure good ventilation of the APC UPS. There should be sufficient operating space in front of UPS. Through practice, it has been proven that it is best not to install UPS against walls, and there should be a distance of about blood between APC UPS and the wall to facilitate UPS maintenance. For specific installation data of various UPS systems, please refer to the user manual provided randomly.
(6) When designing the ventilation and cooling system for UPS machine rooms, please refer to the following data on the power consumption and ventilation volume of various UPS systems.
The basic installation design parameters that users should consider when purchasing UPS include typical input current, output current, power consumption, and required ventilation volume for an output power of 30-400KVAUPS. These parameters can be used by users to select power cable sizes and estimate the capacity of air conditioning units that should be configured when installing in the UPS room. For example, users can estimate the total cooling capacity of the air conditioner based on the data that an air conditioner with a power of W can generate 860 kcal of cooling capacity; It should be noted here that:; The working current value of the battery pack is not provided because different UPS manufacturers have different design ideas and use different power supply voltages for the battery pack. Common battery pack voltages include:
(30X12)=360V;
(32X12)=384V;
(33X12)=396V;
(35X12)=420V;
(40X12)=480V;
(48X12)=576V。
Technical parameters for installation of large UPS
Output power (kVA) 30 40 60 80 120 200 300 400
AC input power supply 380/400/415V,+10%, -15%
Maximum input current (A)
(Full load+battery float charging current) 62 80 120 150 230 390 570 765
Nominal output current (A) 43 57 87 122 183 305 456 609
Power consumption with rated load (kW) 2.2 3.2 4.3 5.6 7.5 12.4 17 22
Ventilation rate (m3/h) 512 800 1120 1800 2600 3500 55000 6160
For these reasons, users should estimate the maximum current that may flow through the battery power cable based on the nominal output power (KVA) of the UPS they have chosen and the critical discharge voltage values of different battery packs. The nominal critical discharge voltage values for the different battery packs mentioned above are:
The 30X12V battery pack is 300V;
The 33X12V battery pack is 330V;
The 35X12V battery pack is 350V;
The 40X12V battery pack is 400V;
The 48X12V battery pack is 480V.