TR FI ES MA GM MK TN EG AZ IQ SY SA AE YE MZ TAP CHANGERS TYPE MHF IV

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Megan Summers
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1 TR FI ES MA GM MK TN EG AZ IQ SY SA AE YE MZ TAP CANGERS TYPE MF IV

2 GENERAL SPECIFICATION These tap changers are available in one, two or three phase applications. The shaft length is variable. Connection diagrams in page MF IV can be applied in any variation to all types. These tap changers are bolted on to the supports, welded under transformer cover and allow strong construction. MATERIALS Steel Parts : These parts can be stainless or mild steel. Mild steel parts are cadmium or zinc plated. Upon request galvanizing is also available. Aluminum Parts : GAISiCu Brass Parts : CuZN40Pb Ms 60 F4 DIN 767 Copper Parts : E-Cu F5 DIN Insulator Parts : Paper phenol-plastic resin based laminates, P 06.5 class of DIN 775. ASSEMBLY TYPE MF IV TREEPASE TAP CANGER A fraction of turn on the control head in necessary to switch from one position to another.a notch is provided to mark each position precisely.for each operation, the notch must first be released by pulling the padlockable pul rod.after being turned to the desired position, the device locks into the respective notch unter the action of a spring.refer to page MF IV 7 for the choice of an operating device matching the tap changer fiiting. The numbering of the positions is engraved on the repeater disc of the control head. See page MF IV 8 for the various directions of numbering. ON REQUEST The aluminum parts can be protected by anodic oxidation. The mild steel parts can be supplied in stainless steel. The brass and copper parts can be tin, silver or cadmium plated. CURRENT Up to 50A See page MF IV 6 for the types and dimensions of the contacts. VOLTAGE CLASS VOLTAGE CLASS 0 kv 0 kv Other B.I.L. values are also available upon customer request. B.I.L 5 kv 70 kv

3 TYPE MF IV TREEPASE TAP CANGER USUAL DIAGRAM setting for delta transformer series-parallel coupling setting for star with outer-earthed conductor transformer common output per phase star - delta coupling

4 Off-circuit operation can be used in oil Delta diagram 0-0 kv 0-50A -5 positions Setting.5% per position TYPE MF IV TREEPASE TAP CANGER * L min Ø 0 S T E F F F G F F F O F F F P Ø 05.5 C B A 5.5 D *(L)Please quote when ordering *()Depending on fixed contacts *L min 95 for A500 control device *L min 70 for A500 control device Voltage class kv Number of Positions A B C D E F G O P S T L Unit No A448D A448D A448D4 A448D5 A458D A458D A458D4 A458D5

5 Off-circuit operation can be used in oil Star diagram 0-0 kv 0-50A -5 positions Setting.5% per position TYPE MF IV TREEPASE TAP CANGER Ø ± * L min.40.5 Ø 45 0 Ø4 5 0 Ø Ø Ø Ø S T E F F F F G F F F F O F F F F P 05.5 C B A 5.5 D TYPE -- *(L)Please quote when ordering *()Depending on fixed contacts *L min 95 for A500 control device *L min 70 for A500 control device TYPE -- Voltage class kv Number of Positions A B C D E F G O P S T L Unit No Type -- Unit No Type A448C A448C A448C4 A448C5 A458C A458C A458C4 A458C5 A448F A448F A448F4 A448F5 A458F A458F A458F4 A458F5 4

6 Off-circuit operation can be used in oil Series parallel coupling 0-0kV 000A TYPE MF IV TREEPASE TAP CANGER * L min Ø 0 Ø S T Ø Ø E F F F F G F F F F O F F F F P Ø 05.5 C B A 5.5 D *(L)Please quote when ordering *L min 95 for A500 control device *L min 70 for A500 control device Voltage class kv A B C D E F G O P S T L Unit No A478P 5

7 TYPE MF IV TREEPASE TAP CANGER FIXED CONTACT B A C Ø D C E B A Flat horizontal contact Flag type contacts UNLESS OTERWISE SPECIFIED BY TE CUSTOMER, FLAG TYPE CONTACTS ARE POSISITIONED AS IN TE DIAGRAM ABOVE DESCRIPTION CONTACT CURRENT A B C D NUMBERS A E FLAT ORIZONTAL CONTACT A60 A6 <000 < FLAG TYPE CONTACT A64 A65 A

8 TYPE MF IV TREEPASE TAP CANGER CONTROL DEVICES * * X 8 Ø90 X X 69 Ø ± ±6 40 Ø00 6 Ø00 40 X:6dia.4mm. holes at 60 on dia.60 mm. X:6dia.4mm. holes at 60 on dia.60 mm. *:The hole on the shaft is drilled at parallel position with respect to the middle position of the tap changer Plug-in standart type Flange-mounted Permitted angular variation: Permitted aligment variation:8mm A500 Plug-in with minimum overall dimensions Flange-mounted Permitted angular variation: Permitted aligment variation:8mm A500 Ø50 Ø *L min.95 for A500 control device *L min.70 for A500 control device 6 Ø50:A5050 Ø:A50 7

9 TYPE MF IV TREEPASE TAP CANGER Numbering of the repeater disc Ø0 Repeaters for rack and pinion drive A B C D Numbering of the repeaters for rack and pinion drive 8

10 TYPE MF IV TREEPASE TAP CANGER Combinations WEN ORDERING PLEASE QUOTE: -The changer unit no. -The voltage class current and type of setting or coupling. -Control device no. 4-The language on the control device. 5-Number of positions. 6-The indication of the repeater disc (A,B,C,D) 7-Dimensions of the fixed contacts For special setups not shown in the catalogue plaese consult us. 9

Tap Changer Type MHM Specification, Assembly and Materials

Tap Changer Type MHM Specification, Assembly and Materials Descriptions General Specifications Remarks available in one, two or three phase application multi layer types upon request shaft length is fixed