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| The heart of the GE PowerVac® circuit breaker is the vacuum interrupter. GE pioneered this interrupter technology beginning with experimental work in the 1920's. Today, the vacuum design remains superior to other arc interruption technologies by providing a smaller footprint and simpler design. |
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DRIESCHER - Indoor Disconnectors, Fuse Bases, Earthing Switches
• Rated voltages Ur
12 kV, 24 kV, 36 kV and 38,5 kV
• Rated currents Ir
630 A, 1600 A, 2500 A, 4000 A and 6300 A
The 1-, 2- and 3-pole Disconnectors ITr are applicable for a rated voltage range of 12 kV, 24 kV, 36 kV, 38,5 kV and a rated current range from 630 A
to 6300 A.
The rated short time current upto 63 kA for a duration of 3 s depending on the model has been tested.
The 3-pole Earthing Switches ES can be used for a rated voltage range of 12 kV, 24 kV, 36 kV and 38,5 kV.
A rated short time current of 20 kA and 31,5 kA is specified.
The described Disconnectors are intended for currentless switching in medium voltage switchgear.
All switchgears are type-tested according to EN 62271-102.
For each switchgear an instruction manual for transportation, mounting and commissioning is inclosed. This instruction manual should be
strictly followed. Refer to brochure 731e |
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DRIESCHER Indoor Switch-disconnector H 27
• 3-pole
• Rated voltage 12 kV and 24 kV
• Ratec current 630 A
For frontpanel mounting or mounting besiede with or without actuating.
All switches are generally equipped with quick make and quick break operating mechanism.
The switches are designed for normal operating conditions according to DIN VDE 0670, Part 1000, class Minus 5° Indoor.
The peak value of the ambient temperature is 40O C; the average value over 24 hours is 35° C at best.
The values of the insulating power are related to sealevel.
Reduction in insulating capacity at hights up to 1000 m are negligible due to the decreasing insulating capacity of the air.
Refer to brochure 727 |
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Power/Vac® Metal Clad Switchgear
GE's POWER/VAC® product line combines the features of metalclad construction with POWER/VAC vacuum interrupter technology in the manufacture and design of a superior class of medium voltage switchgear. Available with ratings from 5 to 38kV.
PV System 27/38 Metal Enclosed Switchgear
This 38kV switchgear delivers advanced vacuum circuit breaker technology and uncompromsing attention to every detail. |
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Sprecher Automation provides two MV switchgears (M1 and M2) which are based on a highly modular and flexibel standardised system. The switchgear components are provided by ELATEC. Sprecher Automation supplies project management, overall and detailed planning, assembly, final assembly and final inspection as well as testing. Beside the factory-assembled delivery, Sprecher also provides on-site installation, commissioning as well as service and maintenance by its own staff.
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Outdoor Switch-disconnector FLa15/60
used for vertical and horizontal mounting on wooden or concrete pole
Rated voltage 12, 24, 36 and 38.5 kV
Rated current 400 and 630 A
For decades DRIESCHER - Outdoor switch-disconnector have been used as line sectionalizers in medium voltage overhead line networks and have
proven to be extremely satisfactory based on their reliability and operating safety.
The switch is in compliance with the regulations as per DIN VDE 0670
Part 301.
The arc extinguishing device in its weatherproof housing, operates in accordance with the oil flow principle of the well-established DRIESCHER circuit-breakers and is shunted in the On condition.
The switch frame and the operating shafts mounted in bronze bearings are hot-galvanized. All insulators used in the construction are made of
cycloaliphatic cast resin (Color RAL 8017 brown).
The contacts with flat terminations in accordance with DIN 46206 are made of electrolyte copper and are silver plated.
Even after many years of operation, a spring guarantees a constant
contact pressure as well as easy and satisfactory switching.
The nuts, washers and spring washers of stainless
steel ensure corrosion-free connections even under extreme climate conditions.
Refer brochure 762e and 763e |
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Outdoor Disconnecting Switches
Fuse-Bases
Earthing Switches
Single- and three-pole
Rated voltage 12 kV, 24 kV, 36 kV, 38.5 kV
Rated current 400 A, 630 A, 1600 A, 2500 A and 4000
All switchgears mentioned in this list comply with the specifications of VDE 0670 Part 2.
All switchgears are equipped with expoxy resin insulators (colour brown, RAL 8017).
For decades the simple, robust construction proved a success in climatical different regions.
The base frames - a welded work made of sectional steel - and the operating shafts made of bronze are hot-galvanized.
All contacts with flat terminations according to DIN46206 and double disconnecting blades made of electrolytic copper are silver-plated and form loopless current paths.
The fuse holder contacts are designed to the operation of high-voltage, high-breaking capacity fuse-links according to DIN 43625.
Adequate cross-sections and suitable contact pressures result in an easy and troublefree switching even after many years of operation, even under
extreme conditions.
All disconnecting switches and three-pole fuse bases can be delivered with an earthing switch.
Disconnecting can also be equipped with spark quenching horns for disconnecting low currents.
Refer brochure 751e |
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DRIESCHER - Outdoor Switch-Disconnector
Type FLa 15/97
• Rated voltage 12 kV, 24 kV, 36 kV and 38.5 kV
• Rated current 400 A and 630 A
• 1-pole and 3-pole design
Contrary to former outdoor load-break switches in which it was common practice for the arc to be extinguished in oil, with the new developed outdoor switch-disconnector FLa 15/97 arc extinction takes place in a vacuum interrupter.
Based on a patented insulating system there is also no liquid or gaseous medium required for the external insulation strength of the vacuum interrupters.
The vacuum quenching device is embedded in a weather-proof insulating housing.
This switchgear is therefore also recommended for special applications (e.g. in water protection areas).
The outdoor switch-disconnector is capable of switching on its rated current as well as its rated short-circuit making current via the main contact system.
The disconnecting process is implemented via the shunt-connected vacuum interrupters, resulting in no external arcing phenomena.
A fully developed eccentric make-and-break mechanism operates the vacuum interrupters and ensures Class M2 with regard to the mechanical strength (corresponds to 5000 mechanical operating cycles).Fefer brochure 766e
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| GE TRANQUELL® surge arresters are designed to protect against overvoltages such as lightning or switching. Intermediate class arresters are used in electric utility and industrial substations to protect transformers and other substation equipment from lightning and switching surge generated overvoltages. Tranquell® polymer arresters provide both excellent protective characteristics and temporary overvoltage capability. |
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| We offer an extensive range of products designed for use in distribution and transmission networks, qualified to IEC and ANSI standards. We supply polymeric and porcelain surge arresters for distribution and transmission networks. The Energy Division has 30 years of service experience of our composite products and in long-term service, our products have an outstanding record for reliability and performance, in the toughest environments and applications. |
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| Ferraz Shawmut is involved in the medium voltage protection from many years. The expertise is centered on the protection of the MV/LV transformer in the power distribution networks with solutions encompassing medium voltage Limitor® fuses for overhead lines protection, oil-tight medium voltage fuses fitting the transformer tank and fault indicators especially the Nortroll® products. Our medium voltage solutions concern also the industrial field with both North-American and European (DIN) standard medium-voltage motor protection fuses. The offering covers also the protection of potential transformers and medium voltage capacitors. |
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Liquid-filled distribution transformers: Power ratings from 15 kVA to 10,000 kVA/36 kV
Liquid-filled distribution transformers are manufactured in Mechelen (Pauwels Trafo Belgium N.V.).
Cavan (Pauwels Trafo Ireland Ltd). Washington/Missouri-USA (Pauwels Transformers Inc.) |
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Electrolytic Plants, Metal-refining plants,
Induction-Melting and Glass Furnaces applications.
Distribution and Power transformers.
Rectifier and Furnace transformers.
ONAN - ONAF - OFAF - OFWF cooling technology.
Voltage up to 145 kV and Power up to 20MVA |
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Rapier RX
The Rapier RX range incorporates a modular design switch that can be configured to suit a variety of applications. Combining high performance and reliability, the Rapier RX rocking type switch can be a key element in rural distribution networks.
Rapier GX
Based on the latest developments in SF6 switchgear technology, the GX combines high performance and reliability. The GX Load break Switch can be manually operated or motorised for sectionalising, automation and remote control to suit your network requirements.
Rapier DSB
The Rapier Double Side Break 'DSB' range provides a powerful and cost effective solution for isolating a series of circuits and equipment in substation applications. Based on open terminal air break technology, the Rapier DSB range combines robustness and alignment reliability. |
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| Trading under the names Raychem, Axicom, Morlynn, Dulmison and Zibo, Tyco Electronics Energy Division offers a comprehensive range of porcelain, polymeric and hybrid solutions for the electricity supply industry. Experience in the design and manufacture of insulators exceeds 80 for porcelain, 30 years for polymeric and 20 years for hybrid products. The manufacturing processes employ some of the most advanced technologies in the field of insulator production. A commitment to quality is evidenced by independent certification of quality systems complying with international standards. |
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Liquid-filled transformers are designed for industrial and commercial applications such as chemical, cement, manufacturing plants, paper or steel mills, schools, hospitals, office buildings, etc. Liquid-filled units use sealed-tank construction that effectively contains the windings and most live parts in a controlled atmosphere. When specified, less-flammable liquid-filled units may be installed indoors.
Features and Benefits
HV Copper windings
LV Aluminum windings
ANSI standard accessories and instruments without contacts
ANSI standard tests with Certified Test Report
ANSI 61 paint
Stronger 12 psi seal tank construction
Paint thickness with 5 mils of paint
Coordination with interfaces
Lower loss grain oriented silicon steel cores
Lower sound level
Wide range of accessories
GE-Prolec IS0-14000 insures an environmentally complaint facility
Competitive lead-time in the industry
State of the art tools such as FEA used for electromagnetic field analysis and structural analysis.
Flexibility to design to your economic models |
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| Trading under the names Raychem, Axicom, Morlynn, Dulmison and Zibo, Tyco Electronics Energy Division offers a comprehensive range of porcelain, polymeric and hybrid solutions for the electricity supply industry. Experience in the design and manufacture of insulators exceeds 80 for porcelain, 30 years for polymeric and 20 years for hybrid products. The manufacturing processes employ some of the most advanced technologies in the field of insulator production. A commitment to quality is evidenced by independent certification of quality systems complying with international standards. |
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Fuse distribution cabinet free standing
Freestanding or transformer coupled to ENA TS 35-2 via 'F' type flange to BS2562
Complies with requirements of ENA TS 37-2
2.5mm pre-galvanised sheet steel enclosure with weatherproof watershed top and front access door
Corrosion protected with polyester stove enamelled textured paint finished in admiralty grey to BS 381C shade no. 623
Outdoor - IP43 degree of protection
Manual operation - IP2XB operator protection in open and closed positions
1600 or 2250A main busbar rating to match specified busbar ratings
Off-load manually operated incoming isolators
6 or 8 TP&N IP2XB fully shielded outgoing fuseways
Extensible to 14 TP&N fully shielded outing fuseways to IP2XB
J Type 92mm outgoing fuseways up to 800A
Moulded case circuit breakers (MCCB) up to 1250A
Air circuit breaker (ACB) up to 2000A
Generator connections available
Bottom cable entry
Cable glanding plates or cable support cleats
Single or multiple core mechanical clamp or compression cable termination options
Available in PME or SNE configuration |
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| Iskra MIS d.d. also offers measuring accessories, including shunts. We offer two types of shunts: the AR 0101 separate shunt, with different rated currents and the AR 0105 shunt, also with different rated currents. |
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Medium and high voltage electrical equipment
