4.2Bolted Pressure Isolation Switch

4.2.1A fixed mounted, gang-operated isolation switch shall be provided with each controller to isolate the medium voltage compartment from the power source.

4.2.2The switch shall be directly driven by an externally operable handle mounted on the right hand flange of the cubicle. The handle shall provide positive indication of the position of the switch.

4.2.3The switch mechanism shall be designed such that in the closed position it provides the equivalent of a bolted pressure joint at both ends of the movable blades, rather than relying on spring pressure.

4.2.4The line side of the switch shall be bus connected to the main horizontal power bus or to the incoming terminals of the controller. The load side of the switch shall be bus connected to the main controller power fuses.

4.2.5The switch blades shall automatically ground the line side of the power fuses when the switch is opened. This allows any stored energy in the controller load circuit to be discharged by closing the contactor using test power.

4.2.6It shall be possible to visually confirm that the switch blades are open and grounded by viewing the blades through the viewing window with the medium voltage door closed. Also, there shall be a mechanical operated flag (visible through the window in the medium voltage door) displaying the switch in the “OPEN” position with the door closed.

4.2.7A shutter mechanism shall automatically isolate the medium voltage compartment from all live parts when the switch is opened.

4.2.8The external operating handle for the isolation switch shall be designed to accept up to three external padlocks in the OFF position.

4.2.9The switch shall be capable of interrupting the no-load current of the largest control power transformer which can be connected to it. The interrupting capability of the switch shall be a minimum of 0.4 amperes at 110% of rated line voltage.

4.2.10The switch shall be rated as follows:

720 amperes @ 5.0kV

4.2.11The mechanical life of the switch and its operating mechanism shall be 10,000 operations minimum.

4.2.12All switch current-carrying parts shall be silver plated. An optional tin-over-silver plated switch shall be available for use in paper mill applications.

4.3Vacuum Contactor

4.3.1The Toshiba CV-6KAU vacuum contactor shall be used in these controllers.

4.3.2The contactor shall be bolted into the medium voltage compartment. It shall be arranged such that the power connections are front-accessible so it can be unbolted and removed if necessary for maintenance.

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Toshiba JK Series manual

JK Series specifications

The Toshiba JK Series represents a significant advancement in the field of home appliances, specifically in cooking technology. This innovative range of microwave ovens combines cutting-edge features, energy efficiency, and sleek design, making them a standout choice for modern kitchens.

One of the primary characteristics of the Toshiba JK Series is its robust power capacity. Most models come equipped with high wattage, allowing them to cook food quickly and evenly. This feature is especially beneficial for busy households where time is of the essence. Additionally, the JK Series incorporates advanced heating systems that utilize a combination of microwave and grill functions, enabling users to achieve perfectly cooked meals with a crispy finish.

A key technology integrated into the Toshiba JK Series is the Smart Sensor function. This intelligent feature adjusts cooking times and power levels based on the moisture levels of the food, ensuring optimal results every time. Users can easily reheat leftovers or cook fresh ingredients without the guesswork typically associated with microwave cooking. This smart approach not only enhances convenience but also promotes energy efficiency, targeting precision in both cooking and power consumption.

Another notable aspect of the Toshiba JK Series is its user-friendly interface. Many models feature a large LED display and intuitive controls, allowing for seamless navigation through various cooking settings. The series often includes pre-programmed options for common foods, such as popcorn, pizza, and vegetables, making meal preparation straightforward and efficient.

In addition to functionality, Toshiba emphasizes safety in the JK Series. Models typically come with child safety locks to prevent accidental operation, giving parents peace of mind. Furthermore, the durable materials used in construction ensure longevity and reliability, making the JK Series a worthwhile investment for any kitchen.

The stylish design of the Toshiba JK Series also deserves mention. With a contemporary finish and compact form factor, these microwave ovens can easily complement any kitchen décor, enhancing overall aesthetic appeal.

In summary, the Toshiba JK Series is a well-rounded choice for consumers looking for powerful, efficient, and stylish microwave ovens. Its combination of smart technology, user-friendly features, safety considerations, and appealing design solidifies its reputation as a leading option in modern cooking appliances. Whether for reheating or cooking, the JK Series is designed to meet the demands of today’s fast-paced lifestyles while ensuring high-quality results.