Feldspar is the mineral name given to a group of minerals distinguished by the presence of aluminum (Al) and the silica (SiO4) in their chemistry.
They form in a variety of thermal environments, during the crystallization of liquid rock (magma), by metamorphism of rocks deep in the earth, and in sedimentary processes.
Feldspar Specification
Feldspar Medium Grade
Chemistry
Al2O3 (%)20.5 Max
Na2O (%)12.0 Max
Fe2O3 (%)0.05 Max
TiO2 (%)0.1 Max
Talcum powder is a soft, white powder developed from talc, or magnesium silicate, a mineral composed primarily of magnesium, silicon and oxygen. When it is finely ground, talc absorbs moisture and helps reduce friction.
In England, dolomite has become a useful source for the production of magnesite by reacting calcined dolomite with sea-water.
Dolomite is a double carbonate of calium and magnesium, CaCO3, MgCO3. The mineral was first identified by Count Dolomien in 1791 and named after its discoverer. It is of sedimentary origin and is supposed to have been formed due to chemical action of sea-water containing high percentage of magnesia, on limestone.
Selective disconnection by Block type current transformers
Truck Type Vacuum Circuit Breaker
Economic functional design
Compact dimensions (800 mm width)
Individually operated shutters
Fully mechanically interlocked
All switching operations behind closed HV Door
Separate LV Compartment
Primary fused withdrawable PT
Top Cable Entry (option)
Suitable for trench mounting
Modular free standing enclosures
Modular design
Compact, space saving design
Reduce space for storage and transportation
High flexibility
Designed according to customer needs
Ability for future to extend
Dimensions
Height from 1500 mm up to 2200 mm
Width from 400 mm up to 1200 mm
Depth from 500 mm up to 800 mm
Protection degree IP 54
Internal separation from form 1 up to form 4
Can be equipped with cable compartment
Rated up to 4000A
Design and assembled according to IEC 439-1
All routine tests are applied
Polyester powder RAL 7032 or 7035
Incoming and outgoing feeder from top or bottom
Applications
Main distribution boards and sub main
Motor Control Center
Power Factor Correction ( PFC )
ATS panels
As request 1 out of 2- 3 out of 5
Connection Boxes in insulating material in a good design shape. protection degree complying with IEC 529 IP 44 & 54 & 67 Grey Ral 7035 High impact material : I
K8 mechanical protection degree according to CEI EN 5010 standard flame and fi
re resistance according to IEC 695-2- Halogen free. Total insulation features (CEL 64-8, EN 60439-1CEL 17-13/1) (IEC 60309-1) Temperature rating :- 25c to + 80c screw close cover Screw close cover Glow-wire test:IEC 598-1,Section (13,13.3.2) cable gland pg :16 & 29 Sizes in mm
