Configuring Your Neutral and Ground Connections

6.1Preferred Grounding Configuration, Wye-Connected Service

The most common configuration of Series 610 UPS Multi-Module Systems is with 480 VAC input,

480 VAC output and a connected load consisting of multiple Power Distribution Units (PDUs) with isolation transformers in the PDUs to produce 208 VAC. For Canadian customers, the UPS modules usually have 600 VAC input and output. The same principles apply if the connected load is an isola- tion transformer feeding various loads. Figure 4 shows a typical installation. The Maintenance Bypass Switchgear is shown separately for clarity, but may be contained within the System Control Cabinet (SCC)/switchgear.

Notice that the UPS module input and the system bypass input are connected to a grounded-wye ser- vice. In this configuration, the UPS module is not considered a separately derived source.

All of the UPS module output neutrals are solidly connected to the SCC neutral. A parity-sized neu- tral is recommended between the UPS module and the SCC for best system performance. The SCC neutral is solidly connected to the building service neutral, which is bonded to the grounding conduc- tor at the service entrance equipment.

The isolation transformers in the PDUs are considered a separately derived source. Therefore the PDU neutral should be bonded to the PDU grounding conductor and connected to a local grounding electrode in compliance with NEC 250-26. (PDUs are connected to the critical load output of the SCC, but are not shown in Figure 4 for clarity.)

Figure 4 Preferred grounding configuration, wye-connected service

NOTE

UPS MODULE N, N=2-6

Impedance-grounded wye sources require an Isolated Neutral Kit in addition to the grounding and neutral conductors shown above—see 6.5 - Grounding Configuration, Corner- Grounded Delta or Impedance-Grounded Wye.

NOTE

If there is a 4-pole Automatic Transfer Switch (ATS) between the service entrance and the UPS, this configuration cannot be used. Refer to 6.2 - Alternate Grounding Configuration, Wye- Connected Service or 6.3 - Preferred Grounding Configuration With Isolated Bypass to determine a suitable configuration.

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Emerson Series 610 installation manual Preferred Grounding Configuration, Wye-Connected Service
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Series 610 specifications

The Emerson Series 610 is a cutting-edge solution for precise process measurement and control, designed specifically for industries where accuracy and reliability are paramount. This advanced instrument, often utilized in oil and gas, chemical processing, and water treatment sectors, combines innovative technology with robust features to meet the demanding requirements of modern industrial applications.

One of the standout features of the Series 610 is its exceptional measurement accuracy. The device employs advanced sensor technology that enables precise determination of variables such as pressure, temperature, and flow. This accuracy translates into improved process efficiency and enhanced product quality. With a wide range of measurement capabilities, the Series 610 can handle varying process conditions and fluid types, making it versatile across different applications.

The heart of the Emerson Series 610 lies in its intelligent diagnostics and predictive maintenance functionalities. This built-in technology allows for real-time monitoring of the device's operational status, providing valuable insights into performance trends. By detecting anomalies early, users can take proactive measures to prevent potential failures, thereby reducing downtime and maintenance costs.

Moreover, the Series 610 is designed with user-friendly features. Its intuitive interface and easy-to-navigate menus facilitate quick setup and configuration, enabling operators to be productive from the outset. The device also supports various communication protocols, including HART and FOUNDATION fieldbus, ensuring seamless integration into existing control systems and enhancing overall automation capabilities.

Another notable characteristic of the Emerson Series 610 is its robust construction. Designed to withstand harsh environmental conditions, it is built with durable materials that offer high resistance to corrosion and physical damage. This durability ensures longevity and reliability, even in the most challenging industrial environments.

In summary, the Emerson Series 610 represents a significant advancement in process measurement technology. With its exceptional accuracy, intelligent diagnostics, user-friendly design, and robust construction, it is an ideal choice for industries seeking to enhance their operational efficiency and reliability. Its ability to seamlessly integrate into existing systems further solidifies its position as a leading solution in the field of industrial measurement and control. As industries continue to evolve, the Series 610 is poised to meet the challenges of the future with confidence and precision.
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