Benefits:

Certifications for application on ships and offshore platforms

The conditions of application on the high seas are a special challenge for switchboards: Besides the saline atmosphere with a high air humidity, this is particularly due to enhanced mechanical stress. First of all, this refers to the longitudinal and transverse accelerations by the motion of the ship due to the swell. Another permanent stress results from the vibrations of the ship‘s drives. SIVACON S8 switchboards are perfectly set to meet these challenges.

For application on ships and offshore platforms, SIVACON S8 was given the necessary certifications from renowned international classification societies under hand and seal.

Design verification with tests

The SIVACON S8 low-voltage switchboard offers safety for human beings and plants thanks to the design verification with tests according to IEC 61439-2.
The physical properties are dimensioned at the testing laboratory for both operation and failure situations, thus leading to a maximum degree of safety for people and plant.
Design verifications as well as routine verifications are a decisive part of quality assurance, and the prerequisite for CE marking according to the EC guidelines and laws.

The SIVACON switchboard is made exclusively of standardized and type-coded modules.

All the modules are high quality and conform to SIEMENS’ design specifications.

The multiple possibilities of combining the components fulfill every requirement.

The low voltage distribution and command switchboards insure:

• Power distribution at the levels of power center, main distribution board or sub-distribution board (FCB,BC);
• Cable feeders equipped with circuit-breakers or fuse-switch-disconnectors (conventional or in-line)(OFF, OFPD);
• Motor control centers (MCC) in “plug-in“ (OFPM) or withdrawable (OFW) design;
• Automatic central reactive power compensation (PFC).

The supply, feeder and coupling cubicles of the circuit-breaker are equipped with automated type 3 WL circuit-breakers in withdrawable or fixed-mounted execution.

Due to the large number of consumers (loads) connected, a particular importance is given to ensuring a long-term operation in conditions of performance, reliability and safety for the operating personnel.

Cable feeders equipped with circuit-breakers or fuse-switch-disconnectors (conventional or in-line) (OFF, OFPD).

The cubicles (OFF) for cable feeders, in fixed-mounted execution are equipped with molded case circuit-breakers or fuse-switch-disconnectors (conventional or in-line).

The compartment design with its individual sub-section for every circuit-breaker offers increased active safety both for installation and personnel protection.

The cubicles are used in applications in which the replacement of devices during operation is not necessary or when short downtimes are accepted.

The “plug-in” (OFPD) design, in-line, offers a more economically advantageous solution to the “withdrawable” unit design.

The modules are easily interchangeable without switchboard shutdown, thanks to the supply-side plug-in contact and their compact design.

The low voltage SIVACON switchboard in “plug-in” (OFPM) design is an efficient standard solution for motor control centers (MCC).

This design offers obvious advantages compared to the classical design and is destined to be used mainly in the chemical industry, waste treatment stations, water supply stations, etc.

The low voltage SIVACON switchboard in withdrawable (OFW) design represents an extremely accesible standard solution for motor control centers (MCC).
The OFW design offers a high degree of flexibility, safety in operation and availability as well as continuous power supply in the industrial processes.

Thanks to the withdrawable construction quick changes and adaptations during operation are possible.

Construction specifications:

• Standard configuration in 8 module heights (100, 150, 200, 300, 400, 500, 600, 700 mm);
• Coupling for auxiliary circuits with up to 40 poles;
• Frontal panel with hinges of the withdrawable unit (modules with height > 200 mm);
• Coupling mechanism for the easy movement of the withdrawable units > 250 A;
• Large space for the auxiliary equipment thanks to the possibility to install components on the back side;
• The withdrawn position can be locked to the purpose of maintaining the safety operation at the consumer.

Automatic central reactive power compensation (PFC)

The switchboards for the automatic central reactive power compensation decreases the overload of the transformers and cables, reduces the power losses and the energy costs.

Based on the load structure, they can be equipped with capacitor modules with or without smoothing chokes.

Controller module with electronic power factor controller for flush door mounting:

• Multifunction display,
• Self-adaptation of the value C/K,
• Adjustable nominal cos Φ from 0.8 inductive to 0.98 capacitive,
• Manual or automatic operation.

One control unit connected to the specialised power stage can be used for only one motor control.

The control unit for direct voltage regulator is entirely made of solid-state devices having a compact and modular construction.

It is possible to use the control unit for other types of trams or other electrical actuation means of transportation.

Basically, the SEC-01 control unit has to generate two pulse-type control signals, for the power stages: driving and breaking, within the power part.

These signals depend on certain external conditions entered in the control unit as digital variables and at a desired speed level, indicated by the vehicle’s operator through a digital hand-controller.

Functions:

• measurement of electricity consumption (active – reactive);
• connecting consumers’ facilities to the supplier’s power facilities;
• protection against industrial frequency over-voltages produced by the consumer by accidental interruption of the neutral conductor;
• protection against electric shock by directly touching the circuits and equipment in the protective block box  normally energized;
• re-actuating possibility  by the consumer in the case of protection activation or of a defect in its installation, by providing a window of access to the circuit breaker while preserving the degree of protection, with the possibility of securing the access by the supplier;
• the possibility of reading the meters or, where appropriate, the interruption of the electricity supply by the supplier, regardless of the consumer’s presence;
• protection against electric shock and damage to equipment by malicious or unauthorized persons;
• short-circuit and overload protection of the general power supply to the consumer.

• Protection against industrial frequency over-voltages occurred at each consumer, through the neutral’s accidental interruption;
• Protection against electrocution through direct contact with the live circuitry and devices;
• Protection against energy thefts and electrical equipment damages determined by the action of an ill-intended, unknowing or unauthorized person;
• Creating possibilities to limit the load peaks and reduce the technological losses;
• Protection of the consumer against industrial frequency over-voltages.

Components:

• The metallic box made of sheet metal powder coated in electrostatic field, coated accordingly to the operating conditions, respectively indoor or outdoor;
• Racking for the installment of the electrical devices;
• Meters for measuring the energy consumption;
• Single phase consumer’s mains made with: LF fuses or automated circuit breakers with over-voltage and differential protection.

The box contains 3 compartments:

• Compartment for fuses;
• Compartment for connection, protection and signaling devices;
• Compartments for meters.

Constructively, the versions of Automatica equipment are:

• – compensation modules;
• – reactive power compensation systems in metallic boxes;
• – reactive power compensation systems in module-based metallic cabinets.

The reactive power compensation modules without metallic enclosure can be made up to compensation values of 200 kVAR. These can be installed in cabinets already existing at the beneficiary and can be used as extensions to other compensation systems.

The reactive power compensation systems in mounted metallic boxes can be executed for reactive power compensation values between 12,5 … 100 kVAR.

The reactive power compensation systems in metallic cabinets are made in module-based design and they are executed for reactive power values between 125 … 400 kVAR.

The system offers a series of advantages:

• reduced power bill;
• decreased active power consumption with app. 15%;
• investment amortization in 6-12 months at most;
• increase of the available active power in the transformer’s secondary circuit;
• reduction of the active power losses in the beneficiary’s installations;
• improvement of the local voltage level, thus allowing the power users to operate at rated voltage, with maximum yield.

SC Automatica SA can perform, at the beneficiary’s request, the installment of the reactive power compensation systems.

Technical data

*other dimensions per request