APC Schneider UPS power delay time battery configuration method?

For example, the surt20kuxich configuration method of an APC smart UPS RT series product has a DC voltage of 384v and 32 12V batteries in each group. If the delay time is required to be 2 hours, the capacity of the battery is calculated as follows:

The power of surt20kuxich is 20000va / 16kw,

20000VA*2H/(0.8*384V)=130AH

Therefore, a group of 130ah batteries was selected, with 32 batteries in total.

The current of battery pack is 20KVA / 384v = 52A, so 25 mm2 cable is selected for battery connection.

Total number of batteries = (power / DC voltage * hour) / ampere hour of each block * number of blocks in each group

The power is the power of UPS, and the DC voltage is the voltage required for UPS battery power supply. The DC voltage of ups with different power is different, and the number of blocks in each group is the minimum number of required batteries. When the battery is generally equipped, it is necessary to be an integral multiple of the number of blocks in each group. The common UPS DC voltage and the number of blocks in each group are as follows (each battery is calculated based on 12V):

For example, if a surt6000uxich is equipped with a delay of 8 hours, its power is 6000va, DC voltage is 196v, each group has 16 batteries, and the total number of batteries required is: (6000va * 8h) ÷ (192 * 0.8) = 312ah ÷ 100 * 16 ≈ 48

Uninterruptible power system is the abbreviation of unconnected power system. The purpose is to provide a stable and reliable AC power supply that is not connected. The reason why UPS can not connect the power supply when the power supply is stopped (power failure). It's the result of battery energy storage. The power supply time is determined by the capacity of the battery. Now the accounting method of UPS battery equipment is introduced as follows:

1. The total load power is p Total (W). Considering the power factor of UPS, it can be calculated directly in the unit of P total volt ampere (VA)

2. V low refers to the termination voltage (V) of the battery after discharge, and 2 V battery V Low = 1.7 V; 12 V battery V Low = 10.2 V

3. V float is the floating charge voltage (V) of the battery, 2 V float = 2.3V, 12 V float = 13.8V

4、 Kh is the conversion coefficient of battery capacity (Ct/C10), 10Hr discharge rate is 1, 5Hr discharge rate is 0.9, 3Hr discharge rate is 0.75 and 1Hr discharge rate is 0.6

5. I is the battery working current (a), t is the continuous discharge time (H), V is the DC supply voltage of the ups external battery (V)

Accounting method

One

Number of 12V cell n: n = V ÷ 122v cell 6N

Two

Battery operating current I: I = ptotal ÷ V

Three

Actual battery capacity C: C = I × t ÷ KH

For example, if the power supply with power of 1KVA is standby for 4 hours, and the model of APC UPS is selected as SURT1000UXICH, V=48V, then

① N = 48V ÷ 12V = 4 sections

②I=1000VA÷48V=21A

③C=21A×4H÷0.8=105AH

④ The battery capacity can be selected as a group of four 100Ah batteries. The results of selection are against the requirements of users and cost considerations.

Note: the common capacity standard of 12V battery is 7Ah, 17ah, 24Ah, 26ah, 33ah, 38ah, 40ah, 50ah, 65ah, 75ah, 100Ah, 120ah, 130ah, 150Ah, 160ah, 180Ah, 200ah, 220ah, etc.

Apcups power delay time battery configuration method?

For example, the surt20kuxich configuration method of an APC smart UPS RT series product has a DC voltage of 384v and 32 12V batteries in each group. If the delay time is required to be 2 hours, the capacity of the battery is calculated as follows:

The power of surt20kuxich is 20000va / 16kw,

20000VA*2H/(0.8*384V)=130AH

Therefore, a group of 130ah batteries was selected, with 32 batteries in total.

The current of battery pack is 20KVA / 384v = 52A, so 25 mm2 cable is selected for battery connection.

Total number of batteries = (power / DC voltage * hour) / ampere hour of each block * number of blocks in each group

The power is the power of UPS, and the DC voltage is the voltage required for UPS battery power supply. The DC voltage of ups with different power is different, and the number of blocks in each group is the minimum number of required batteries. When the battery is generally equipped, it is necessary to be an integral multiple of the number of blocks in each group. The common UPS DC voltage and the number of blocks in each group are as follows (each battery is calculated based on 12V):

For example, if a surt6000uxich is equipped with a delay of 8 hours, its power is 6000va, DC voltage is 196v, each group has 16 batteries, and the total number of batteries required is: (6000va * 8h) ÷ (192 * 0.8) = 312ah ÷ 100 * 16 ≈ 48

Uninterruptible power system is the abbreviation of unconnected power system. The purpose is to provide a stable and reliable AC power supply that is not connected. The reason why UPS can not connect the power supply when the power supply is stopped (power failure). It's the result of battery energy storage. The power supply time is determined by the capacity of the battery. Now the accounting method of UPS battery equipment is introduced as follows:

1. The total load power is p Total (W). Considering the power factor of UPS, it can be calculated directly in the unit of P total volt ampere (VA)

2. V low refers to the termination voltage (V) of the battery after discharge, and 2 V battery V Low = 1.7 V; 12 V battery V Low = 10.2 V

3. V float is the floating charge voltage (V) of the battery, 2 V float = 2.3V, 12 V float = 13.8V

4、 Kh is the conversion coefficient of battery capacity (Ct/C10), 10Hr discharge rate is 1, 5Hr discharge rate is 0.9, 3Hr discharge rate is 0.75 and 1Hr discharge rate is 0.6

5. I is the battery working current (a), t is the continuous discharge time (H), V is the DC supply voltage of the ups external battery (V)

Accounting party

One

Number of 12V cell n: n = V ÷ 122v cell 6N

Two

Battery operating current I: I = ptotal ÷ V

Three

Actual battery capacity C: C = I × t ÷ KH

For example, if the power supply with power of 1KVA is standby for 4 hours, and the model of APC UPS is selected as SURT1000UXICH, V=48V, then

① N = 48V ÷ 12V = 4 sections

②I=1000VA÷48V=21A

③C=21A×4H÷0.8=105AH

④ The battery capacity can be selected as a group of four 100Ah batteries. The results of selection are against the requirements of users and cost considerations.