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Emerson 480V user manual DC Intermediate Circuit, Inverter Output, Bypass Input

Models: 480V

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UPS Specifications

5.4.2 DC Intermediate Circuit

Table 12 DC intermediate circuit

Rated Power kVA

40

60

 

80

 

100

120

Recommended number of lead-acid batteries

Total 40 battery blocks of 12VDC (240 cells of 2VDC)

 

will be supported by UPS

 

 

 

 

Recommended float charge voltage

 

 

 

2.27VDC *

 

 

 

 

 

 

 

 

 

Recommended boost charge voltage

 

 

 

2.4VDC *

 

 

 

 

 

 

 

 

Recommended end of discharge voltage

 

 

1.67 - 1.75 VDC

 

 

 

 

 

 

 

 

 

 

Maximum recharge battery current, A *

14.8

22.2

 

29.6

 

37.0

44.4

 

 

 

 

 

 

 

 

Maximum boost charge duration, min. *

 

 

1800

 

 

 

 

 

 

 

 

 

 

Boost-float threshold current, A *

 

 

 

0.1 C default

 

 

 

 

Temperature voltage compensation, mV/°C *

From 0 to 5 mV/deg. C/cell. Default value is 3mV/deg. C/cell.*

 

 

 

 

 

 

 

Ripple voltage superimposed %

 

 

 

≤ 1

 

 

 

 

 

 

 

 

 

 

* Set by configuration software and based on usage of VLRA batteries.

See Table 8 for current ratings.

5.4.3 Inverter Output

Table 13 Inverter output

Rated Power kVA

40

60

 

80

100

 

120

Rated voltage, VAC

 

 

480

 

 

 

 

 

 

 

 

Supply

 

 

3-phase, 3-wire plus ground

 

 

 

 

 

Frequency, Hz

 

60 (50Hz in frequency converter mode)

 

 

 

 

 

 

 

 

 

Rated Power, kW

36

54

 

72

90

 

108

 

 

 

 

 

 

 

Three-phase transient overload,

 

105% to 110% for 60 minutes

 

 

111% to 125% for 10 minutes

 

min. load

 

 

 

 

126% to 150% for 1 minute

 

 

 

 

 

 

 

Voltage Regulation %

±1.0% three-phase RMS average for a balanced three-phase load

±2.0% three-phase RMS average for a 100% unbalanced load

 

Frequency Regulation %

Nominal frequency regulation is ±0.05% in single module mode,

 

and+/- 0.25% in parallel mode.

 

 

 

 

Maximum rate of change

For single mode, the slew rate is adjustable from 0.1Hz/s to 3Hz/s

of frequency, Hz/sec

 

 

 

 

 

 

 

See Table 8 for current ratings.

5.4.4 Bypass Input

Table 14 Bypass input

Rated Power, kVA

40

60

80

100

120

 

 

 

 

 

 

Rated voltage, VAC

 

 

 

 

480

 

 

 

 

 

Supply

 

 

 

Three-phase, 3-wire plus ground

 

 

Bypass voltage tolerance %

Upper limit: +10%, +15% or +20%; Upper limit default: +15%

Lower limit: -10%, -20%, -30% or -40%; Lower limit default: -20%

 

Frequency, Hz

 

 

 

 

60

 

 

 

 

Input frequency tolerance %

 

 

±2.5%, ±5%, ±10% and ±20%; default ±10%

Bypass overload capacity

Time

Load

Long-term operation:

<135% load

(all ratings)

10 minutes:

135% - 170% load

 

100 milliseconds:

1000% full UPS rated output current

See Table 8 for current ratings.

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Emerson 480V user manual DC Intermediate Circuit, Inverter Output, Bypass Input
Page 43 Page 45

480V specifications

The Emerson 480V power systems play a critical role in modern industrial applications, providing reliable and efficient power distribution. These systems are designed for facilities that require robust performance and operational efficiency while adhering to safety regulations. With voltage ratings at 480V, they cater primarily to industries such as manufacturing, data centers, and commercial buildings.

One of the main features of the Emerson 480V systems is their scalability. These systems can be easily adapted and expanded as operational demands grow, thereby reducing initial investment costs and providing a flexible solution for evolving business needs. This ability to scale is crucial in a fast-paced environment where demands can change rapidly.

The Emerson 480V systems also incorporate advanced technologies for improved performance and safety. One key technology is the use of smart grid solutions. This enables real-time monitoring, diagnostics, and control, allowing facility managers to optimize energy consumption and reduce operational costs. Furthermore, these systems often include integrated protection devices that enhance safety measures by minimizing the risk of electrical faults, overloads, or short circuits.

Energy efficiency is another characteristic that distinguishes Emerson 480V systems from traditional alternatives. With advanced power management features, these systems effectively reduce energy waste and lower electricity bills. Emerson’s commitment to sustainability is evident in its designs, which aim to minimize environmental impact through energy-efficient technologies.

The build quality of Emerson 480V systems is also noteworthy. They are designed to withstand harsh industrial environments and are constructed with high-grade materials that promote longevity and reliability. The modular design allows for easy maintenance and repair, which further extends the lifespan of the system.

Additionally, Emerson 480V systems are equipped with user-friendly interfaces that facilitate ease of operation. This ensures that operators can efficiently manage and control power distribution without extensive training. The combination of performance, scalability, safety features, and user-centric design makes Emerson 480V systems an ideal choice for businesses looking to enhance their electrical infrastructure.

In summary, Emerson 480V power systems are a leading solution for industrial power distribution, characterized by their scalability, smart technology integration, energy efficiency, robust build quality, and user-friendly operation. These attributes make them a valuable investment for any organization aiming to improve its electrical management and operational performance.