Transformer Tank Ground Connector
Transformer Tank Ground Connectors are essential safety devices that create secure electrical connections between transformer tanks and grounding systems. They provide a low-resistance path for fault currents and help equalize potential differences between system components. These connectors are designed to fit all EEI-NEMA distribution transformers and can accommodate various cable orientations. They ensure proper bonding of electrical equipment, preventing hazardous voltage buildups and protecting both personnel and equipment during operation.
The Transformer Tank Ground Connector comes in multiple configurations, including models with rotating eye bolts, external threads, and internal threads. They are typically constructed with brass components for superior electrical conductivity and corrosion resistance. These connectors can handle a wide range of grounding conductors, from #8 through 2/0 AWG stranded wire. Installation requires only basic hand tools, making them practical for both new installations and retrofits. They are particularly valuable in joint-use situations where telecommunications equipment needs to be bonded to electrical transformers.
Key Features:
• Compatible with all standard EEI-NEMA distribution transformers
• Rotating eye bolt design accommodates both vertical and horizontal cable orientations
• Brass construction ensures excellent conductivity and corrosion resistance
• Simple installation with common hand tools
• Handles multiple conductor sizes from #8 to 2/0 AWG stranded
Transformer Tank Ground Connector Drawing
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Frequently Asked Questions (FAQ)
What are transformer tank ground connectors?
Transformer tank ground connectors are high-conductivity bronze devices that connect grounding conductors to transformer tanks. They feature a 1/2-inch-13 stud that fits all standard EEI-NEMA distribution transformers and can handle conductor ranges from #8 through 2/0 AWG stranded.
What are the key features of transformer tank ground connectors?
They come with rotating eye bolts to accommodate cables vertically or horizontally, require no special tools for installation (regular lineman’s wrench works), and are available in different models including external thread, internal thread, and rotating eye bolt versions.
What conductor sizes can transformer tank ground connectors handle?
Most models can handle conductors ranging from #8 solid to 2/0 stranded (8.3mm² to 67.4mm²). Some specific models like TTC3 and TTC4 handle #10 solid to #1 stranded (5.2mm² to 42.4mm²).
What is the purpose of transformer tank grounding?
Transformer tank grounding provides a ground-fault current path, limits transient overvoltage, maintains neutral point near ground potential, and creates an effective path for ground-fault currents to protect against electrical shock hazards.
Are special tools required for installation?
No special tools are required for installation. A standard lineman’s wrench is sufficient for mounting these connectors to transformer tanks. The design allows for straightforward installation and maintenance.
What types of transformer tank ground connectors are available?
Three main types are available: connectors with rotating eye bolts for flexible cable positioning, external thread connectors, and internal thread connectors. All types are compatible with standard EEI-NEMA distribution transformers.
Are tin-plated versions available?
Yes, tin-plated versions are available in certain models, such as TTC3P and TTC4P, offering enhanced corrosion resistance for challenging environmental conditions.
What standards do these connectors comply with?
These connectors are designed to fit all standard EEI-NEMA distribution transformers. Some models are RUS listed, ensuring they meet Rural Utilities Service requirements for electrical infrastructure.
