Automatic Load Tap Changing and Voltage Regulator Transformers
E-mail your specifications and contact information for a quote.
Worldwide shipment is available.
Transformer Features
Range – 2 to 100 MVA, 15KV to 230KV voltage class
Loading – Designed to deliver rated current and MVA in all
tap positions.
Service – Outdoor
Basic Impulse Level (BIL) – Per ANSI standard
Impedance – ANSI standard
Coils – Aluminum or copper conductor, circular
construction, continuous or helical disc, or barrel wound
Cooling Fluid – Type II mineral oil, R-Temp or Silicone oil
available up to 15 MVA
Fluid Preservation System – Sealed tank or conservator
Cooling Radiators – Plate type
Gauges and Accessories –
• Liquid temperature indicator
• Liquid level gauge
• Vacuum pressure gauge
• Drain valves
• Filter press connections (top and bottom)
• Automatic pressure relief device
• Control wiring in flexible conduit
• Other accessories available
Paint – ANSI 61 enamel on sandblasted surface,
other colors available
Nameplate – Stainless steel, engraved
Other – Welded top cover, 19-in manhole covers,
provisions on base for skidding, transformer lifting lugs,
stainless steel ground pads
Load Tap Changing Features
Tap Changer Types –
• Reactive vacuum
• Resistive
LTC Ranges – Plus or minus 10 percent in thirty-two
5/8 percent steps
LTC Controls – Automatic or manual local control
Other – Position indicator, operation counter, static
voltage regulating relay, current transformer for line drop
compensation, isolated compartment oil, manual tap
operation from ground level, control panel with 3-point
latching, automatic door light, power receptacle, anticondensation
heater in control box
Optional Features
• Reconnectable windings
• Regulating winding on either HV or LV
• Non-standard impedance
• Epoxy paint in your choice of color
• Demountable radiators with isolation valves
• Galvanized radiators
• Terminal throats and chambers
• Sloping roof
• Multi-stage fan cooling for increased MVA
• Other gauges and accessories
• Shock indicator
• Customer-specific controls and relays
Additional Features Available
• Other tap changer types
• Rigid galvanized conduit wiring
• Remote controls with position indicator
• Provisions for parallel operation
• Potential transformer for voltage signal
• Tap range other than plus or minus 10 percent or steps
other than 5/8 percent
• SCADA interfaces for supervisory control
• Loss evaluated designs
• HV Load Tap Changing
|
