Eaton 93E Back-Up Power UPS Installation Manual
- June 15, 2024
- EATON
Table of Contents
Eaton 93E Back-Up Power Ups
Introduction
The Eaton® 93E 20–30 kVA uninterruptible power supply (UPS) is a true online, continuous-duty, transformerless, double-conversion, solid-state, three-phase system, providing conditioned and uninterruptible AC power to protect the customer’s load from power failures.
The Eaton 93E 20–30 kVA online power protection system is used to prevent the loss of valuable electronic information, minimize equipment downtime, and minimize the adverse effect on production equipment due to unexpected power problems.
The Eaton 93E 20–30 kVA UPS continually monitors incoming electrical power and removes the surges, spikes, sags, and other irregularities that are inherent in commercial utility power. Working with a building’s electrical system, the UPS system supplies clean, consistent power that sensitive electronic equipment requires for reliable operation. During brownouts, blackouts, and other power interruptions, batteries provide emergency power to safeguard operations.
The UPS is housed in a single free-standing cabinet, with safety shields behind the door for hazardous voltage protection. Figure 1 shows the Eaton 93E 20–30 kVA UPS.
UPS Standard Features
The UPS has many standard features that provide cost-effective and consistently reliable power protection. The descriptions in this section provide a brief overview of the UPS standard features.
Installation Features
- Power wiring can be routed to the back of the cabinet with connections made to easily accessible terminals.
- Control wiring can be installed using conduit through the bottom of the power terminal cover base or by routing wiring through the power terminal cover base wiring channels and must be installed following Class 1 wiring methods.
Control Panel
- The control panel, located on the front of the UPS, contains a liquid crystal display (LCD) and pushbutton switches to control the operation of the UPS and to display the status of the UPS system. See Chapter 7 UPS Operating Instructions for additional information.
Customer Interface
- Building Alarm Monitoring
- Up to three inputs in the UPS are available to connect the facility’s alarm system contacts. The UPS uses these inputs to monitor the building alarms in addition to the UPS status.
- Some system configurations may limit the number of inputs available.
- Mini-Slot Communication Bays
- Two communication bays are standard equipment.
- One to two optional Mini-Slot® connectivity cards can be installed in the UPS module at any time.
- Mini-slot cards are quickly installed at the rear of the UPS and are hot-pluggable.
- For additional information on these topics, see Chapter 8 Communication.
High-Efficiency Normal Mode
- The 93E Series UPS offers a High-Efficiency (HE) normal mode with double-conversion on demand that allows the UPS to operate in standby bypass mode.
- This mode allows the 93E UPS to achieve 98% efficiency while still protecting the load.
- High-efficiency mode is the default normal operating mode. See Chapter 7 UPS Operating Instructions for additional information.
Battery System
- The battery system provides emergency short-term backup power to safeguard operations during brownouts, blackouts, and other power interruptions.
- The battery system is equipped with lead-acid batteries.
- The 93E–30/20 and 93E–30/30 UPS battery systems use internal batteries with External Battery Cabinet (EBC) capability. Up to two Eaton 93E External Battery Cabinets (EBCs) can be added to the UPS system. The EBCs are connected in parallel with the internal batteries to provide extended run time.
- The 93E–20 UPS (reduced battery string model) battery system uses internal batteries only with no EBC capability.
- All UPSs in a parallel system must have the same battery configuration.
Advanced Battery Management
- A three-stage charging system increases battery service life by optimizing recharge time and protects batteries from damage due to high current charging and inverter ripple currents.
- Charging at high currents can overheat and damage batteries.
Frequently Asked Questions
Is the Eaton 93E UPS suitable for data centers and critical IT applications?
Yes, the Eaton 93E UPS is designed to address the power protection needs of data centers and critical IT applications by providing reliable and efficient backup power.
Can the Eaton 93E UPS be remotely monitored and managed?
Yes, the UPS offers improved management and monitoring capabilities through the Brightlayer Data Centers suite, allowing for remote monitoring and management.
What is the UPS bypass feature, and how does it work?
The UPS bypass feature automatically transfers power to the bypass mode in case of overload or UPS failure, ensuring continuous power supply to connected devices.
Is the Eaton 93E UPS compatible with different types of loads, including sensitive equipment?
Yes, the UPS is compatible with a wide range of loads, including sensitive equipment, thanks to its double-conversion online topology.
What is the purpose of the Mini-slot communication bays on the Eaton 93E UPS?
The Mini-slot communication bays allow for additional communication options and expansion, enhancing the monitoring and control capabilities of the UPS.
Can the Eaton 93E UPS operate at high altitudes?
The Eaton 93E UPS is suitable for operation at altitudes of less than 1500m at +30°C (86ºF).
What is the power rating range for the Eaton 93E UPS?
The power rating range for the Eaton 93E UPS is from 20 kVA to 60 kVA.
What are the available operating input voltages and frequencies for the Eaton 93E UPS?
The operating input voltage is 208/220 Vac, and the operating input frequency range is 50/60 Hz.
What is the efficiency rating of the Eaton 93E UPS, and how does it compare to other units?
The Eaton 93E UPS has an efficiency rating of up to 98% in high-efficiency mode, which is 7% higher than competing units.
What are the battery specifications for the Eaton 93E UPS, and how long can it run on battery power at full load?
The Eaton 93E UPS uses sealed lead-acid maintenance-free batteries with a voltage of 216 Vdc. The runtime at full load varies depending on the model, ranging from 5 minutes to 21 minutes.
What are the environmental operating conditions, including temperature, humidity, and altitude, for the Eaton 93E UPS?
The operating temperature range is from 0 to 30°C (32 to 86°F) without derating, with a recommended operating temperature of 25°C (77°F). The maximum operating altitude is 1500m (5000 ft) at 30°C.
Does the Eaton 93E UPS meet EMI emissions and immunity standards, and which standards does it comply with?
Yes, the Eaton 93E UPS meets EMI emissions and immunity standards, including IEC 62040-2 C3 and FCC Part 15 Subpart B, ICES-003, CISPR 22, CISPR 24, and VCCI: Class A.
Installation Manual
Reference:Eaton 93E Back-Up Power UPS Installation Manual- device.report