SIVACON 8PT (SIEMENS)

• Cabinet’s structure
• Frame and housing 
• Types of the bus systems 
• Cabinets of the FCB1 and BC types 

• Cabinets of the OFW type (drawout-type modules) 
• Cabinets of the OFPM type (plug-in modules)
• Cabinets of the PFC type (reactive power compensation)
• Cabinets of the CCS type (cabinet of the free design)

Application areas of  SIVACON:

• electric power plants
• distribution cabinets for buildings and structures
• distribution substations
• main distribution boards and auxiliary electrical systems for energetics, chemical, oil, gas industry and other branches.

Summary table

SIVACON adapts to Customer requirements

Structurally cabinets SIVACON 8PT can be divided into 5 sections:
1 – compartment of the device
2 – compartment of the horizontal bus bars
3 – compartment of the cable inlet
4 – compartment of the secondary circuits
5 – cable compartment for the cable connection from backside or from above.

A module technology gives the opportunity of optimal adaptation of SIVACON to any requirements.

• type tested standard combinations of the devices (ТТА)
• standard position of the bus bars in the upper or back part of the cabinet
• 3 and 4 pole bus bar system for the current up to 7400 А
• rated impulse withstand current Ipk up to 375 kA
• a deep compartment for multi-purpose installation
• modular structure of the device’s compartment
• one-sided or back-to-back installation
• cable inlet from above or from the backside
• any components can be installed into the compartment, independently of the bus bar position and cabinet’s depth.
• specific task-oriented internal space division degrees from the form 1 to the form 4 (IEC 60439-1)
• deep compartment of the devices

• installation near the wall, or free-standing devices
• cables or buses can be connected from above or from the backside
• cable compartment is placed from the front or from the backside
• easy access to the buses

КFrame of the cabinets SIVACON 8PT can be made with the welded or bolt joint of the components.
Frame components and cabinet’s cases are made from the sheet steel with the following thickness:
− frame — 2,5 mm;
− housing — 2,0 mm.
Surface treatment:
− powder coating;
− galvanization.
Perforation holes are made all over the whole perimeter in increments of 25 mm.
The door opens 180°.
Spring-loaded secure lock protects from self-opening from the doors.
The excess pressure is released through the upper cover of the cabinet.
Level of protection according to GOST 14254—96, IEC 60529:
− IP30, IP31, IP40, IP41, IP42 — cabinets with the natural ventilation of the cabinets;
− IP30, IP31, IP40, IP41, IP42, IP54 — nonaerated cabinets.

Busbars in the cabinets SIVACON 8PT are placed in the separate closed compartment, access to them is available only through the steel end caps, which are bolted to the frame of the cabinet.
Busbars are invisible and aren’t available when the doors and end caps are open for the access to the other elements of the cabinets SIVACON 8PT.
Cabinets of SIVACON 8PT are provided with 3-phase buses of the power supply:
А (L1), В (L2), С (L3),

А (L1), В (L2), С (L3), neutral working bus N (or combined neutral working bus and neutral protective bus PEN) and also neutral protective bus PE.

SIVACON allows to fulfill forms of internal division from the form 1 to the form 4 according to IEC 60439-1.

1 – Housing
2 – Internal division
3 – Bus bars, including distribution buses
4 – Functional unit, including connection point

Form 1 – no internal division

Form 2 – division of bus bars and funktional units

Form 3 – Division of bus bars and funktional units + division of funktional units from each other + division between clamps for outer conductors and bus bars

Form 4 – division of bus bars and funktional units + division of funktional units among themselves + division between clamps for outer conductors and bus bars

Cabinets of the FCB1 and BC type are provided with the air-break switches of the 3WL type  produced by SIEMENS with the rate current from 630А up to 6300А and are applied as:

• entrance cabinet
• cabinets of power supply for feeders
• sectional cabinets

Automatic circuit breaker is installed into the separate compartment of the box. A front panel of the automatic circuit breaker goes through the door’s cut out and is available for management and maintenance. Depending on the cabinet’s configuration the door can be as general as for every cabinet’s compartment.
There are 2 installation methods of the automatic circuit breaker 3WL possible:

• fixed performance  — automatic circuit breaker is fixed in the cabinet
• draw out  performance — automatic circuit breaker is installed into the basket with the draw out device, which is fixed in the cabinet.

Secondary circuit equipment is placed in the compartment of additional cabinet’s equipment.

Cabinet for the cable feeders or drive with the draw out modules assures high ease of use and optimal safety and high level of the device readyness. Quick repalcement and module modernization are possible due to appliance of the draw-out principle . Any module can be additionally supplied or replaced.
The draw out construction SIVACON assures the highest level of equipment readiness.
A vertical bus system for the plug-in contacts goes through in the back side of the cabinet and is protected against contacts by a special housing (IP20).

A draw-out module is a combination of the low-voltage switching devices (automatic circuit breaker, contactor, relay), which are used for the energy distribution (cable feeder) or for the equipment’s electromotor control (motor feeder). This equipment is placed on the wiring board inside the draw out module. On the front of the draw out module can be placed the control devices (control buttons, signal lamps) and measuring instruments (ampere-meter, voltmeter).
Depending on the content of the equipment and its size draw out modules are distinguished by height: 100mm, 150mm, 200mm, 300mm, 400mm, 500mm and 600mm.

As a rule draw out modules are provided with the electronic control and motor protection relay SIMOCODE PRO produced by SIEMENS, which consists of: basic module, current and voltage measuring modules, operator panel, expansion modules: digital I/O, analog input, earth-fault module.  In this case electromotor control is carried out according to the throwaway code included to the basic module both in the standalone mode and in the PROFIBUS DP net.

Cabinet for cable feeders or motor with the plug-in modules is a cost-effective alternative of the cabinets with the draw out modules. Quick module  replacement without a shutdown of the cabinet is possible due to the plug-in contacts on the supply side. Any module can be additionally supplied or replaced. Plug-in structure SIVACON assures excellent savings, reliability and flexibility. Vertical bus system for the plug-in contacts goes through in the back side of the cabinet and is protcted against contacts by a special housing (IP20).

A plug-in module is a combination of the low-voltage switching devices (automatic circuit breaker, contactor, relay), which are used for the energy distribution (cable feeder) or for the equipment’s electromotor control (motor feeder). This equipment is placed on the wiring board inside the plug-in module. On the cabinet’s door are placed the control devices (control buttons, signal lamps) and measuring instruments (ampere-meter, voltmeter).

Depending on the content of the equipment and its size the plug-in modules are distinguished by height: 75mm, 125mm, 175mm, 275mm, 375mm

75mm height plug-in module (moto feeder). Front view	75mm height plug-in module (moto feeder). Back view
125mm height plug-in module (moto feeder). Front view	175mm height plug-in module (moto feeder). Front view

Reactive power compensation cabinet PFC is used for reactive energy compensation and keeping of power factor (cos ϕ) on the target level; this reduces load on the transformers and cables, transmission losses and cost of electricity. Cabinets consist of the separate compensation modules, which allows to add step by step the rated power of the compensation device.
On/off control of the condenser is carried out by the special programmable controller produced by MODL, Germany.

Compensation module consists of: protection device (fuses, automatic circuit breakers), contactors with contacts of the advanced switching and current limiting resistors and condensers.

Depending on the load type in the electric circuits of the consumer compensation cabinets can be with and without trottle.

Compensation cabinets without trottle are used for the centralized compensation of the reactive power  in the linear electronic circuits. Maximal power of the one cabinet without trottle can be equal to 500kVar.

Compensation cabinets with trottle are used for the centralized compensation of the reactive power  in the  nonlinear electronic circuits (>20% from total load). Maximal power of the one cabinet with  trottle 5.67%  can be equal to 400kVar, with trottle 7% — 300 kVаr.

Free-design cabinets are used for installation in them of different components and can be used for solving of different tasks. For example, for placement of controllers, or frequency inverters, a lot of low-power consumer devices etc.
Cabinets can have different configuration:
with and without main busbar;
with and without vertical busbar;
with one or several wiring boards.
Cable connection is performed from the front of the cabinet.

abinets SIVACON 8PT and combinations of the switching devices have been tested in the laboratory and have passed type tests and this ensures the maximal reliability and the personnel safety.
Cabinets SIVACON 8PT have passed tests for compliance with IEC 60439-1, DIN EN 60439-1 (VDE 0660 часть 500).

Type tests:

• test for temperature limit
• insulation resistance check
• closed-circuit fault tolerance check
• test for correct wiring between the combination bodies of switching devices and the grounding conductor according to the results of the resistance check or measuring
• check for closed-circuit fault tolerance of the grounding conductor
• check of creepage distances and air gaps
• mechanical integrity testing
• IP protection level testing

Every power distribution device SIVACON passes the following types of testing before shipping:

• a visual monitoring of production, including wiring works, and functional tests on electrical equipment if required
• insulation resistance check
• check of protective measures and visual monitoring of the end to end ground lines.