Secondary switchgear or secondary distribution switchgear is used to control, protect and isolate electrical equipment in distribution substations. It is mostly used to de-energize medium-voltage equipment for proper network function or for safety reasons.
Secondary switchgear is found in:
- compact substations
- compact transformer substations such as on a wind farm
- underground substations
- commercial buildings
It can be installed in both indoor and outdoor environments and can be protected from wet or dusty conditions.
Secondary switchgear comprises an electrical disconnect switch, a series of fuses or circuit breakers and an enclosure. In order to isolate the conductors, the switchgear can be insulated by oil, gas or air.
When selecting secondary switchgear, be sure to include information such as:
- current rating
- voltage class (low, medium or high voltage)
- the type of isolating medium (gas, oil, air)
- the environmental conditions (outdoor, indoor, marine, underground, etc.)
- AC or DC current
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Paralleling secondary distribution switchgear Commander™ GE Digital Energy
GE's Zenith Energy Commander Parallleling Switchgear(PSG) has become the leader in supplying solutions to simple and very complex systems due to its design flexibility and...
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Wall mounted secondary distribution switchgear 160 A | ALPHA 160 SIEMENS Low-Voltage & Products
DIN Wall-Mounted Distribution Boards - ALPHA 160 System The modular design of our new Siemens distribution board system draws on our long years of experience in the distribution board sector. This system has been tailored to meet individual requirements for distribution board installation. The system comprises unequipped...
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Ring-main secondary distribution switchgear max. 24 kV, 630 A | SABRE series CG Power Systems
SABRE RANGE Product Overview The SABRE range of RMU combines the most advanced Vacuum and SF6 technologies to meet the modern day requirements. It is a fully extensible and...
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Secondary distribution DC switchgear 110 - 220 V DC, 5 A | PK Chint Electric Co.,Ltd.
PK Microcomputer-protected Measuring & Controlling Switchgear Panel Application: in the system for intelligent measurement, protection and control of the HV apparatuses. Rated power supply voltage: 110/220V DC Sample ratings: voltage 110V/50HZ; current: 5A/50HZ Standards: IEC 255-5 Features: Equipped with CPU and chips from Intel to realize reliable processing capability. COMS chips...
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Medium voltage air insulated secondary distribution switchgear 12 kV, 630 A | W 12 series Driescher
DRIESCHER - Air-Insulated Medium-Voltage Switchgears...
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Medium voltage secondary distribution switchgear 200 - 1250 A, 7.2 - 12 kV | MV-CS Igel
Technological development The MV-CS (Medium Voltage Control System) is a combination of different technologies and voltage levels. These aspects open new perspectives for medium voltage switchgears. The main aspect of this switchgear is the strict division into two components. 1) basic unit: The basic unit does...
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Modular secondary distribution switchgear 13.8 - 25 kV | PMX™ S&C Electric Company
PMX™ Modular Metal-Enclosed Switchgear PMX™ Modular Metal-Enclosed Switchgear combines the solid features of S&C Custom Metal-Enclosed...
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Ring-main secondary distribution switchgear max. 24 kV | Sabre series LUCY Switchgear
Sabre vacuum circuit breaker ring main unit up to 24kV The Sabre ring main unit range includes fully extensible and non-extensible options, providing the full range...
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Following the successful launch of the Lightning DC switchgear product, we have extended the DC product range with the introduction of a DC disconnector solution for...
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Air insulated secondary distribution switchgear GEMIS® Greiner
GEMIS® - General information GEMIS®air-insulated, metal-enclosed m.v. switchgear is universally suitable for use in industry, public buildings, chemical plants and by power...
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Modular secondary distribution switchgear Elastimold® series Thomas & Betts
Elastimold® switchgear, the Industrys first completely solid dielectric line, is compact enough to fit through a manhole, maintenance-free, modular, field upgradeable, and environmentally...
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High quality DC High Speed Circuit Breaker(HSCB) and DC Disconnector application - Internationally authorized laboratory type tested - High Reliability and Safety - Interruption (0 ~ rated interruption capacity kA) - Excellent interruption...
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Medium voltage secondary distribution switchgear max. 24 kV, 0.4 - 12.5 kA | CGMCOSMOS Ormazabal
The CGMCOSMOS range has been designed to equip MV/LV distribution substations up to 24 kV, regardless of the electrical diagram type: antenna,...
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Ring-main secondary distribution switchgear LS Industrial Systems
Tri-MEC Ring Main Units are mainly used for power distribution of 11/15kV class underground line and designed to enable connection, supply and protection by HRC power fuse combination. The units are three-way combined single panels comprising incoming/outgoing feeder panels and fused protection LBS panels that protect...
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Paralleling secondary distribution switchgear PD series KOHLER POWER SYSTEMS
When it comes to flexibility in generator paralleling, KOHLERÆ PD-Series automatic systems are ... well, unparalleled. If utility power...
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GE's Zenith Energy Commander Parallleling Switchgear(PSG) has become the leader in supplying solutions to simple and very complex systems due to its design flexibility...
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Secondary distribution switchgear 12 - 24 kV | RMSYS SAREL
RMSYS is another series of RMU with live parts and busbars sealed in common stainless steel tank. Inside this stainless...
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Flameproof secondary distribution switchgear max. 12 kV, 400 A Brush
BRUSH Transformers produce a comprehensive range of certified flameproof transformers, switchgear and low voltage protection chambers. The flameproof range have been in production for over forty years and are designed in...
