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Thanks to a partnership with a leading producer of bar systems, ETA has carried out tests and verifications on Areta cabinets in a specialized laboratory (CESI), in order to prove the short-circuit withstand strength of the main and protective circuits with a specific bar distribution system with 60mm centre line spacing. So, among its innovative solutions, ETA can now present the tested Busbar System, complete with its supports, bars, covers, clamps, adaptors and fuse bases.
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The busbar system forms the main power distribution within an assembly and is one of the critical elements determining the assembly's operational reliability and safety. The Logstrup busbar system is designed to withstand the mechanical and thermal stress existing during normal service as well as under fault conditions.
The main busbar can be arranged at the top, bottom or at any module in between in the enclosure. They may also be arranged in the X, Y plane or in the Z plane. This allows the ultimate in flexibility.
The distribution busbars can be placed behind the functional units or between them, allowing for rear access. |
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| Cut, punch and bend copper and aluminium busbars with the Novopress SLB 125 three-in-one bus bar tool. Ideal for flexible use in the workshop and on site. The basic unit transforms quickly and easily into a cutting, punching or bending machine. The complete bus bar fabrication system - combining accuracy with simplicity and speed. |
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For switchboards and motor control centres, solid copper bar has to be tailored to fit. The SML busbar work-centre has been specifically designed for this application.
Bars can be accurately cut to length without any burr or distortion and only 5mm of waste. Clearance holes for fixing bolts can be punched out using a template or pencil markings as a guide for the centre pointer of the punch. The bar can then be bent to the desired angle
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This inexpensive and rugged machine can be bolted to any solid surface. The fully welded construction ensures that it will give years of maintenance-free service. It is simple and quick to use and has all the necessary features to ensure accurate repeatability.
The bender features an eccentric quick-clamping block which locks the copper bar in place. An extension bar provides the leverage to bend the copper round a 10mm radius former. An adjustable stop can be positioned to limit the bending angle and an adjustable length stop can be set to ensure that the bend is at the correct distance from the end of the bar.
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The SIPROTEC 7SS60 system is an inexpensive numerical differential current protection for busbars in a centralized configuration.
It is suitable for all voltage levels and can be adapted to a large variety of busbar configurations with an unlimited number of feeders. The components are designed for single busbars, 1½-breaker configurations and double busbars with or without couplers.
The use of matching transformers allows phase-selective measurement. Single-phase measurement can be achieved by using summation current transformers.
Features
Optimized for single busbar and 1½ circuit-breaker configurations
Suitable for double busbars with or without couplers
Separate check zone possible
Short trip times
Unlimited number of feeders
Differential current principle
Low-impedance measuring method
Numerical measured-value processing
Suitable for all voltage levels
Low demands on CTs thanks to additional restraint
Measured-value acquisition via summation current transformer or phase-selective matching transformers
Maintained TRIP command (lockout function)
Centralized, compact design
Combinative with separate breaker failure protection
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SIPROTEC 7SS52 numerical protection is a selective, reliable and fast protection for busbar faults and breaker failure in medium, high and extra-high voltage substations with various possible busbar configurations.
The protection is suitable for all switchgear types with iron-core or linearized current transformers. The short tripping time is especially advantageous for applications with high fault levels or where fast fault clearance is required for power system stability.
The modular hardware allows the protection to be optimally matched to the busbar configuration. The decentralized arrangement allows the cabling costs in the substation to be drastically reduced. The 7SS52 busbar protection caters for single, double or triple busbar systems with or without and quadruple busbar systems without transfer bus with up to: 48 bays, 16 bus couplers, and 24 sectionalizing isolators and 12 busbar sections. |
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The bending bench with digital display, metering device and automatic length stop is an example of the advanced design of Novopress products. The bending angle required is entered on a keypad and any spring-back on the material compensated for automatically. With the automatic length stop, both leg lengths and bending angles can be programmed to allow a fast production cycle.
The bending bench combines maximum accuracy with ultimate efficiency and is designed for copper and aluminium busbars up to max. 160 x 13 mm, with a maximum strength of 250 N/mm². |
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Working on copper bars CISABARRE CM1
A production machine
for 3 applications :
- cutting
- punching
- bending flexible
and rigid bars
Hydraulic edge type bending machine, for copper bars up to 125X10 mm.
Operated by CME electro-hydraulic unit (same as "Cisabarre").
Easy machine to use, with electric triggering stop for repetitive folds, main angles engraved on the working surface, extendable support arm to hold long bars.
Technical specifications
- Weight : 107 KG
- Measurements (without the support arm): 900X520X280
- Size of the bars to be bent: 125X10 mm max
- Machine to be placed on a workbench
- Minimum distance between two opposite 90° bends: 65 mm |
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Insulated flexible busbars consist of several layers of uncoated or tinned copper strips and are insulated with flexible high quality PVC compound. Such busbars have some outstanding advantages such as:
* Easy assembly
* Possibility of reducing sizes of the equipment
* Lower temperature rise
* High flexibility
These advantages make it possible to install them into difficult equipment or small places very easily. They will be particularly well used as connectors in switchgears and between transformers, switching devices and prefabricated power networks.
KINTO is one of the leading suppliers in China specialized in manufacture of copper parts for electrical applications.
Product range:
- copper flexible connectors made out of copper strips
- copper flexible connectors made out of baided tapes or stranded ropes
- flexible insulated busbars
- primary copper contacts
- primary copper connectors
- copper clamps and other customer copper parts
We use technologies such as press-/diffusion welding, braze welding, cold-pressing, stamping, deep-drawing and high precision machining.
The contact areas can be zinned or silver-coated according to customers' requirements.
We are a ISO9001 certificated company with strict quality assurance system, and we have advanced production and testing equipments to assure the quality of each product |
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