SECTION 3 BYPASSING & ISOLATING

BYPASSING THE ATS*

This procedure explains how to Bypass the closed automatic transfer switch contacts. Bypassing is required before the ATS can be tested or isolated. The Bypass Handle must be in the OPEN position (green indicator) and the Isolation Handle must be in the CLOSED position (window). See Figures 3–1, 3–2, and 3–3.

You can only bypass to the same source that the Transfer Switch is connected.

Solenoid interlock prevents incorrect operation.

1.Observe which Transfer Switch Connected To light is on (Normal or Emergency) on the door. This is the position of the automatic transfer switch.

2.Bypass to the same source as connected to transfer switch as follows (select Normal or Emergency).

Indicator shows:

green O OPEN when the ATS is not bypassed.

To Bypass Normal push in handle all the way & turn it clockwise.*

Indicator shows:

yellow O EMERGENCY CLOSED when ATS is bypassed to Emergency or

yellow O NORMAL CLOSED when ATS is bypassed to Normal Source.

To Bypass Emergency pull out han- dle all the way & turn it clockwise.*

Figure 3–1. Bypass Handle and position indicators.

To Bypass Normal Source*

(Load connected to Normal Source)

The Transfer Switch Connected To Normal light is on and Transfer Switch Connected To Emergency light is off.

Push in* the Bypass Handle all the way, then turn it clockwise until Bypass Switch Position shows CLOSED on NORMAL (yellow indicator). The red light Unit Not In Automatic will flash.

Push in

Bypass Switch

E

Bypass

 

 

Handle

 

 

&

 

 

turn it

 

 

clockwise.

 

L

 

 

 

 

N

 

ATS

 

Figure 3–2. Bypass to Normal.

To Bypass Emergency Source*

(Load connected to Emergency Source)

The Transfer Switch Connected To Emergency light is on and Transfer Switch Connected To Normal light is off.

Pull out* the Bypass Handle all the way, then turn it clockwise until Bypass Switch Position shows CLOSED on EMERGENCY (yellow indicator). The red light Unit Not In Automatic will flash.

Pull out

Bypass Switch

E

Bypass

 

 

Handle

 

 

&

 

 

turn it

 

 

clockwise.

 

L

 

 

N

 

ATS

 

Figure 3–3. Bypass to Emergency.

The automatic transfer switch can now be put in the TEST or OPEN position. See ISOLATING on page 3–2.

*NOTE: When Accessory 66A (reversed Normal & Emergency connections) is specified, the handle push–pull operation is reversed. Follow instructions on the door.

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Emerson 7ATB manual Bypassing & Isolating, Push, Bypass Handle Turn it Clockwise, Pull out, Bypassing the ATS
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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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