Transformer Bushings
FGRBLW
Dry Type Transformer Bushing
Reliable, Explosion-Free High-Voltage Transformer Bushings that Never Need Maintenance.
HV DryStrong™ uses our RIF™ technology (Resin Impregnated Fiberglass): tough and resilient to mechanical and thermal stresses.
Non-oil, non-gas, non-porcelain.
Explosion-free, maintenance-free, and environmentally friendly
The dielectric dissipation and partial discharge of RHM’s transformer bushings are low thanks to its new insulating material and refined structure. Our unique Resin Impregnated Fiberglass Insulated (RIF™) condenser structure allows for strong and resilient service in addition to high resistance to thermal shocks. The bushing has a high mechanical load-bearing capacity resulting in a longer lifespan. It is also truly explosion-free.
The adhesion between the electrode and insulation material is superior because of our unique manufacturing process. This provides insulation with a consistent and lasting performance.
The internal stress of the capacitive core has been decreased significantly by our patented capacitive core internal stress division cushion technology, which improves resistance to cold and heat impulses.
Our dry transformer bushing design features fiberglass impregnated with epoxy resin, which makes all interface seals simpler and safer.
As for all of our products, we use exclusively silicone rubber as external insulation. Silicone rubber, a growing choice throughout the industry, is stronger than porcelain, lightweight, and non-polluting.
Insulation type |
OIP |
RIP |
RHM
RIF™ |
Internal Insulation |
Oil, paper |
Epoxy, paper |
Fiberglass, epoxy |
External insulation |
Porcelain |
Porcelain |
Hollow composite
insulation |
Silicone Rubber |
Explosion risk |
Can explode |
Can explode |
Can explode |
Explosion-free |
Withstand thermal level |
A |
B |
B |
B |
Partial Discharge |
Ur/<10pC |
Ur/<10pC |
Ur/<10pC |
Ur/<5pC |
Withstand cold and heat impulse |
____ |
____ |
____ |
Good |
Resistance to shocks |
Low |
Low |
Good |
Good |
Maintenance |
Needs maintenance |
Maintenance-free |
Maintenance-free |
Maintenance-free |
Resistance to pollution |
Base |
Base |
Good |
Good |
Weight |
Heavy |
Heavy |
Lighter |
Lightest |
Customer benefits:
More Information
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