Wide Range of Geometries,

Air, Oil and SF6 Environments ...

 

Designed for PCB Assembly,

Coating Approved to UL94 V-0 ...

 

High Voltage Withstand,

Essentially Non-Inductive ...

 

Compact Size, Ideal Carbon

Composition Replacement ...

 

Air and Water Cooled Variants,

Custom Solutions Available ...

 

Diameters from 10mm to 50mm,

Lengths up to 600mm ...

 

Integral Handle and Shield,

Custom Solutions Available ...

 

Compact Size, Modular Design,

Approved to UL94 V-0 ...

 

Flame Retardant Package,

250 V a.c. Thermal Cutoff ...

 

High Surge Energy Rating, 3mm

and 6mm Diameters Available ...

 
 
 

HVR High Voltage, Non Inductive, Ceramic Carbon Linear Resistors are manufactured (to ISO 9001-2000 Standards) from a carefully blended mixture of clays, alumina and carbon.

 

After mixing and granulating, the material is pressed to the required shape, with diameters ranging from 3 to 152mm.

 

The resistors are then fired, at very high temperatures, in a tunnel kiln with a controlled reducing atmosphere. This produces a Bulk Ceramic Carbon Resistor which is 100% Active Material, and therefore of Minimum Size.

 

Typically aluminium is then flame sprayed onto the flat surfaces of the Ceramic Resistor to provide reliable electrical contact and an anti-track coating is applied to the edges to improve dielectric withstand.

 

The Ceramic Carbon Resistor Technology enables the manufacture of a Wide Variety of Geometries in a Wide Resistivity Range, with constant mechanical strength. They are Robust, good in compression and capable of absorbing transmitted mechanical shock, provided direct impact is avoided.

 

Product Testing

Testing and Product Development is undertaken in either of the Materials, Applications or High Voltage Laboratories. The latter is equipped with a 2 Stage Marx Generator capable of delivering 100 kV.

 

Quality Policy

 

With respect to the current range of products, HVR's Manufacturing Systems are ISO 9001-2000 approved by the Ceramic Industry Certification Scheme Ltd.

 
 

Throughout the process, detailed mandatory quality control procedures are adhered to, culminating in the 100% High Voltage Performance Testing of all Heavy Duty Switchgear Resistor Discs.

 

Further Laboratory High Voltage Performance Testing & Analysis is undertaken by Applications Technicians and verified by Applications Engineers, before product release is granted.

 
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
                     

Home  |  Site Map  |  About HVR  |  Products  |  Applications  |  Agents  |  Contact Us  |  Events

   Copyright HVR International Limited 2015. All Rights Reserved. This page last updated: 17 April, 2013.