HZ
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THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer Up to 150A Built from the following components to be included in your order: SWITCHING UNIT HZ Tap Changer CORE sub-assembly with TUBULAR Fixed Contacts for cable crimping or brazing. Diagram Nominal Voltage Rated current BRIDGE BRIDGE Series-Parallel (S-P) Series-Parallel (S-P) Star-Delta Common Output per Phase OPTIONAL (*) Insulating Insulating Metal Insulating Metal (*) Bracket(s) to be ordered SEPARATELY - Metal (to be earthed) or Insulating (“hook”) BRIDGE BRIDGE BRIDGE Series-Parallel (S-P) Star-Delta Common Output per Phase DOUBLE-CONTROL, 3-stage : one S-P + two BRIDGE DOUBLE-CONTROL, 3-stage : one S-P + two BRIDGE Insulating Metal Insulating Metal Insulating Metal 150 A Fixed Contacts are REMOVABLE – Removal/mounting instructions : pages 16/17 CONTROL DEVICE – with SHAFT , options & accessories – Pages 18 to 25 Mounting instructions of the control devices – Pages 26 to 28 1 28 septe

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer BRIDGE – 20 / 30 kV – 30 and 63 A N = 2 to 7 positions – setting 2.5 % per position e CAUTION ! Optional bracket(s) : Insulating ("hook") Angular Step Switching Unit No. nn = 30 or 63 (A) rated current

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer BRIDGE – 20 / 30 kV – 30 and 63 A N = 2 to 7 positions – setting 2.5 % per position Coupling sleeve Angular Step Switching Unit No. nn = 30 or 63 (A) rated current

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer SERIES-PARALLEL – 20 / 30 kV – 30 and 63 A Coupling sleeve Angular Step Switching Unit No. nn = 30 or 63 (A) rated current

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer SERIES-PARALLEL – 20 / 30 kV – 30 and 63 A Coupling sleeve Angular Step Switching Unit No. nn = 30 or 63 (A) rated current

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer STAR - DELTA – 20 kV – 30 or 63 A Coupling sleeve

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer COMMON OUTPUT PER PHASE – 20 / 30 kV – 30 or 63 A N = 3 / 5 / 7 positions – setting 2.5 % per position Angular Step Switching Unit No. nn = 30 or 63 (A) rated current

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer BRIDGE – 20 / 30 kV – 150 A N = 2 to 7 positions – setting 2.5 % per position Coupling sleeve REMOVABLE CONTACTS Angular Step

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer BRIDGE – 20 / 30 kV – 150 A N = 2 to 7 positions – setting 2.5 % per position e Coupling sleeve REMOVABLE CONTACTS Angular Step

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer BRIDGE – 20 / 30 kV – 150 A N = 2 to 7 positions – setting 2.5 % per position Coupling sleeve REMOVABLE CONTACTS Angular Step

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer SERIES-PARALLEL – 20 kV – 150 A Coupling sleeve REMOVABLE CONTACTS Angular Step

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer STAR-DELTA – 20 kV – 150 A Coupling sleeve REMOVABLE CONTACTS Angular Step

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer COMMON OUTPUT PER PHASE – 20 kV – 150 A N = 3 / 5 / 7 positions – setting 2.5 % per position e Coupling sleeve REMOVABLE CONTACTS Angular Step

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer DOUBLE-CONTROL – 3-stage – 20 / 30 kV – 30 or 63 A 1 SERIES / PARALLEL + 2 BRIDGE N = 2 to 7 positions – setting 2.5 % per position W : to be specified Coupling sleeve

THREE-PHASE OFF-CIRCUIT TAP CHANGER For oil-filled transformer DOUBLE-CONTROL – 3-stage – 20 / 30 kV – 150 A 1 SERIES / PARALLEL + 2 BRIDGE N = 2 to 7 positions – setting 2.5 % per position Coupling sleeve Coupling sleeve

FIXED CONTACTS 150 A REMOVAL USING 56265-HZ-HM SPECIAL TOOL (To be ordered separately)

FIXED CONTACTS 150 A MOUNTING USING 56265-HZ-HM SPECIAL TOOL (To be ordered separately)

UNIVERSAL ALUMINIUM KNOB CONTROL DEVICE SHAFT Ø14 WITH CUSTOMIZED LENGTH (Does NOT fit 7-position 150A) BOTH COMPONENTS TO BE ORDERED SEPARATELY Mounting instructions page 26 Transformer tank

UNIVERSAL ALUMINIUM KNOB CONTROL DEVICE, PROTECTIVE COVER SHAFT Ø14 WITH CUSTOMIZED LENGTH (Does NOT fit 7-position 150A) BOTH COMPONENTS TO BE ORDERED SEPARATELY Mounting instructions page 27 O 98 O 80 Transformer tank

UNIVERSAL ALUMINIUM HANDLE CONTROL DEVICE SHAFT Ø14 WITH CUSTOMIZED LENGTH (Does NOT fit 7-position 150A) BOTH COMPONENTS TO BE ORDERED SEPARATELY Mounting instructions page 28 Transformer tank

UNIVERSAL ALUMINIUM KNOB OR HANDLE CONTROL DEVICE NUMBERING - REPEATER DISC Position from 1 to N counter clockwise (CCW) Numbering code : Ba Position from 1 to N clockwise (CW)

OPTIONAL ALUMINIUM PROTECTIVE COVER REF. 26794 FOR CONTROL DEVICE 27432-B-UNI TO BE ORDERED SEPARATELY

ALUMINIUM KNOB CONTROL DEVICE FOR 7 POSITIONS 150 A TAP CHANGERS SHAFT Ø14 WITH CUSTOMIZED LENGTH BOTH COMPONENTS TO BE ORDERED SEPARATELY Transformer tank

ALUMINIUM KNOB CONTROL DEVICE AND PROTECTICE COVER FOR 7 POSITIONS 150 A TAP CHANGERS SHAFT Ø14 WITH CUSTOMIZED LENGTH BOTH COMPONENTS TO BE ORDERED SEPARATELY

ALUMINIUM HANDLE CONTROL DEVICE FOR 7 POSITIONS 150 A TAP CHANGERS SHAFT Ø14 WITH CUSTOMIZED LENGTH BOTH COMPONENTS TO BE ORDERED SEPARATELY Transformer tank

UNIVERSAL ALUMINIUM KNOB CONTROL DEVICE 26328-UNI MOUNTING INSTRUCTIONS Optional : Red arrow Universal knob 26175-UNI aluminium alloy Screw SH CC M8-25 stainless steel Screw H M05-10 (x2) stainless steel Optional : Repeater disc 26829-UNI-HZ-0.5 + Red plate 26829-UNI-HZ-RED Washer Z M05 (x2) stainless steel Repeater disc 26829-UNI-HZ stainless steel O'rings R11 (x2) Viton / FPM Stuffing box 26238-UNI steel Transformer tank Shaft Ø14 stainless steel Fit the following order : - the 2 x R11 O-Rings - the repeater disc 26829-UNI-HZ (2 orientations are possible) or optional red plate...