Emerson 7ATB manual Bypassing & Isolating, Turn crank Counter Clockwise Until Window Shows

Page 12

BYPASSING & ISOLATING (continued)

ISOLATING THE ATS

Isolating is required before any service work can be performed on the automatic transfer switch (ATS). Refer to Figures 3–4, 3–5, 3–6, and 3–7.

1.Bypass the closed automatic transfer switch contacts. See BYPASSING on page 3–1.

Align position indicator. Do not leave the handle in an intermediate position.

2.Turn the Isolation Handle counterclockwise (approx. 16 turns, approx. 12 turns for 4000 A) until window shows TEST. The ATS can be tested now without load interruption (see page 2–1).

Bypass Switch

E

Turn crank

 

counter-

 

clockwise

L

until

 

window

 

shows

 

TEST.

 

 

N

Automatic Transfer Switch Figure 3–4. CONNECTED to TEST position.

3.Continue turning Isolation Handle counterclock- wise (approx. 7 turns, approx. 8 turns for 4000 A) until the window shows ISOLATE.

Bypass Switch

E

Turn crank

 

counter-

 

clockwise

L

until

 

window

 

shows

 

ISOLATE.

 

 

N

Automatic Transfer Switch

 

Figure 3–5. TEST to ISOLATE position.

 

4.Open the lower enclosure door(s). Pull out the side rail carriage. On 4000 A extend two support legs; see Figure 3–7b. Then roll out the transfer switch. It can be safely inspected in this position. The transfer switch can also be removed for easier maintenance operations.

CONN

position

window

TEST

 

ISOLATE

 

 

unfold

 

crank

counterclockwise – draws out transfer switch

Figure 3–6. Isolation Handle.

NOTE: In the TEST position the transfer switching device solenoid operator circuit is energized through secondary disconnects.

Hazardous voltage capable of causing electrical shock, burns, or death; do not touch any control circuit terminals.

Figure 3–7a. 1000–3000 A transfer switch isolated and pulled out for inspection.

See page 2–2 for maintenance handle use. For 1000–3000 A lifting yoke kit 607064 is available to facilitate lifting by using an overhead crane or similar equipment. For 4000 A use lifting yoke 835745–001.

1000–3000 A switches weighs 350–450 lbs; use lifting yoke 607064. 4000 A switches weigh approx. 600 lb; use lifting yoke 835745-- 001 or other device capable of lifting this weight to avoid personal injury or equipment damage.

To avoid personal injury and equipment damage on 4000 A switches, two support legs must be extended as shown in Figure 3–7b. Substantial initial force is required to pull out the transfer switch (there are detents on rails).

3---2

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Contents Table of Contents Rating LabelNameplate Page Catalog Number Identification 4000Status Lights 1000 1200 1600 2000 2600 3000 4000Page Installation Remove Shipping Brackets / Angles From the Transfer SwitchRemove the Shipping Skid Supporting FoundationInstallation Functional Test Voltage ChecksElectrical Operation Transfer TestTesting & Service Preventive MaintenanceDisconnecting the Controller Transfer TestTesting & Service Trouble-Shooting ChecksTROUBLE-SHOOTING Manual Load Transfer Maintenance HandleBypassing & Isolating PushBypass Handle Turn it Clockwise Pull outBypassing & Isolating Turn crank Counter Clockwise Until Window ShowsIsolating the ATS Drawout procedure Return to Service Turn crank Clockwise Until Window ShowsTurn crank clockwise until window shows Conn connected Return to Service Bypass Handle Turn it Counter ClockwiseTo Un-Bypass Normal Source To Un-Bypass Emergency SourceIndex See Controller User’s Guide

7ATB specifications

The Emerson 7ATB represents a significant advancement in underwater technology designed for deepwater exploration and data collection. This innovative submersible vehicle is engineered to perform a range of tasks, from scientific research to natural resource exploration, while ensuring safety and efficiency in performance.

One of the standout features of the 7ATB is its robust design, capable of withstanding extreme pressures found at significant ocean depths. The submersible is made from high-strength materials that not only protect its internal components but also reduce weight for enhanced maneuverability. Its streamlined shape minimizes drag, allowing for efficient navigation through the underwater environment.

The 7ATB is equipped with state-of-the-art sensor technology. This includes multi-beam sonar for accurate mapping of the seafloor and advanced imaging systems that capture high-resolution, real-time images and video. The incorporation of in-situ chemical sensors enables the vehicle to analyze water quality and detect various substances, making it invaluable for environmental monitoring.

A key characteristic of the Emerson 7ATB is its advanced autonomy capabilities. The submersible can operate independently for extended periods through automated navigation and mission planning. This autonomy is supported by sophisticated algorithms that allow it to maneuver efficiently and avoid obstacles while performing pre-programmed tasks. Furthermore, it boasts a flexible payload system, accommodating a variety of instruments tailored to specific missions.

In terms of communication, the 7ATB employs a hybrid system that combines acoustic and satellite technologies to maintain a reliable link with the control center, even in remote locations. This ensures real-time data transmission, enabling scientists and operators to make informed decisions during operations.

The vehicle also features battery technology designed for extended operational life, reducing the need for frequent retrieves. This efficiency not only enhances productivity but also minimizes the logistical challenges often associated with deep-sea missions.

Overall, the Emerson 7ATB is a remarkable combination of durability, advanced technology, and operational efficiency, positioning it as a go-to solution for underwater exploration and research in challenging environments. Its innovative features set a new standard for submersible vehicles, revolutionizing how we explore and understand the ocean depths.
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