How to land power cables in a Galaxy VS UPS and GVSBPSU80G installation?

Issue:

Floor-mounted Maintenance Bypass Cabinet landing points require clarification when referring to the power cables installation in the UPS and in the MBC.

Product line:

Galaxy VS UPS

Environment:

Galaxy VS UPS for External batteries  from 10-40 kW at 208V and 20-80 at 480V

Galaxy VS UPS with Internal Batteries from 10-25 kW at 208 V and 20-50 kW at 480 V

GVSBPSU80G

Cause:

Customers might have issues trying to land cables in the correct busbar/breaker

Resolution:

GVSBPSU80G  is compatible with the following Galaxy VS models

External Batteries		Internal Batteries
208 V	480 V	208 V	480 V
GVSUPS10KFS	GVSUPS20KGS	GVSUPS10KB4FS	GVSUPS20KB4GS
GVSUPS15KFS	GVSUPS30KGS	GVSUPS15KB4FS	GVSUPS30KB4GS
GVSUPS20KFS	GVSUPS40KGS	GVSUPS20KB4FS	GVSUPS40KB4GS
GVSUPS25KFS	GVSUPS50KGS	GVSUPS25KB4FS	GVSUPS50KB4GS
GVSUPS30KFS	GVSUPS60KGS
GVSUPS40KFS	GVSUPS80KGS

Safety Disclaimer

This guide is intended for qualified electrical installers only.

All installations must comply with local electrical codes and Schneider Electric installation manuals. Schneider Electric assumes no liability for improper installation

Installation Guidelines

Connect External Cabling

Picture 1: Electrical diagram of a Galaxy VS with Internal batteries at 480V with a Maintenance Bypass Cabinet floor floor-mounted.

Picture 2: Left Side View of the Maintenance Bypass Cabinet - Single Mains

1.  Please, refer to the Connect the Power Cables in a 10-80 kW Top Cable Entry System in the installation manual

2. Identify the Input and Load Busbars in the MBC

3. Land the Utility Source Cables in the Input (L1, L2, L3) busbars in the MBC. This busbar feeds the Unit Input Disconnect Device (UIB) and the Maintenance Bypass Disconnect Device (MBB), as shown in Picture 1.

4. Land the UPS Load Cables in the Load (L1, L2, L3) Busbars in the MBC. This busbar feeds the equipment that the UPS will back up, labeled UPS Output in Picture 1.

Connect UPS and MBC internal Cabling

Picture 3: Maintenance Bypass Cabinet without Conduit Box - Front view

Picture 4: UPS Busbar Section - Front view*

1. The cables coming out from UIB (Picture 3) go to the UPS Input busbars in the UPS Cabinet. (Picture 4)

2. The cables coming into UOB (Picture 3) come from the UPS Output busbars in the UPS Cabinet. (Picture 4)

*The UPS busbars distribution shown in picture 4 belongs to a Galaxy VS UPS for External Batteries; the busbar distribution may vary depending on the Galaxy VS model installed, but the instructions are similar.

Important Notes

• Routing: Power cables between UPS and MBC can be routed directly only for UPS with External Batteries. For Internal Batteries, a Conduit Box is required.

• Dual Mains Systems: UIB becomes SSIB (Static Bypass Switch Disconnect Device) and will be fed by the Bypass Source. Remove jumpers between the input and bypass busbars in UPS cabinet. Check the applicable sections for Dual Mains in the adequate UPS Manual.

• Always follow official installation manuals.

Useful documentation

Galaxy VS UPS with Up to 2 Internal Battery Strings – Installation

Galaxy VS UPS with Up to 4 Internal Battery Strings – Installation

Galaxy VS UPS for External Batteries – Installation

Galaxy VS Maintenance Bypass Cabinet GVSBPSU150G, GVSBPSU80G – Installation

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