SANERVIB-80-SG 80% Anti-vibration pads for impellerless transformers

Description

When electric transformers are in operation, they emit a characteristic noise resulting from the vibrations of the magnetic laminations they contain. This vibration comes from the 50 Hz alternating current that flows through them, which has a fundamental vibration frequency and several corresponding harmonics of vibration at 100 to 200 Hz. Depending on the load used, the design and the age of the transformer, these vibrations can increase over time. In addition, depending on the installation site, these vibrations may enter into resonance with the frame.

To dampen the noise generated by oil-filled or dry-coated electric transformers when they are in operation, we have designed the SanerVib^® range. This is a range of low-frequency silentblocks specially developed to provide high anti-vibration performance at transformer excitation frequencies. The SanerVib 80 SG series is designed to provide up to 80% vibration reduction.

Description of the SanerVib^® 80 SG range:

• Classic 4-support configuration
• Stainless steel shock-absorbing cushion and aluminium or stainless steel platform depending on model
• Metal design with a modulus of plasticity that varies very little over time, unlike other plastic or elastomer solutions on the market, which have to be changed regularly.
• Reinforced surface treatment to ensure that ageing is close to the life of the transformer
• All SanerVib80-SG units are made of painted steel, category C2, with a superior anti-corrosion treatment (galvanisation or stainless steel on request).
• Midnight blue as standard, other colours available on request

The 3 SanerVib^® 80-SG references are sufficient to cover most of the ranges of electrical distribution transformers without rollers: from 0 to 2400 kg (ref. SanerVib80SG-2400), from 2401 to 5200 kg (ref. SanerVib80SG-5200) and from 5201 to 10000 kg (ref. SanerVib80SG-10000).

If the diameter of the SanerVib80-SG chosen is too large in relation to the transformer support (UPN or UPE), extension spacers can be added to raise the edges of the transformer feet in relation to the silentblock. 3 heights are available: 45, 55 or 65 mm.

Please note that the SanerVib80SG-2400 is originally fitted with a 55mm extension, in a single block: this is not removable.

SanerVib 80 product details :

• SanerVib80SG-2400: Diameter: 5.4 cm / Height: 5.5 cm / Weight (set of 4): 4 kg
• SanerVib80SG-5200: Diameter: 7.85 cm / Height: 3.03 cm / Weight (set of 4): 6 kg
• SanerVib80SG-10000: Diameter: 12.75 cm / Height: 2.85 cm / Weight (set of 4): 8 kg

Additional information