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On-load tap-changers type UZE

UZ type on-load tap-changers are of the single compartment, on-tank type. The selector and switching mechanisms are combined (selector switch) and are located in the main compartment with the motor drive mechanism welded to the outside. The unit is supplied fully assembled and ready to mount on the outside of the transformer tank.

Maintenance and inspection of the tap-changer are simplified since access to the active part of the tap-changer is made easy with a large, hinged door panel on the front of the compartment.

Product scope

  • Base technology: Conventional, resistance, on-tank, selector switch
  • Common applications: Network, special, industrial
  Tap-changer placed in the neutral point of the winding Other placements of the tap-changer
Highest voltage for equipment (Um) 145 kV 145 kV
Max lightning impulse (BIL) 650 kV 650 kV
Max current
3-phase
1-phase (one tap changer / phase)
600 A
600 A
600 A
600 A
Max step voltage 2000 V 2000 V

 

WhyHitachi ABB Power Grids?

  • Maintenance can be performed from ground level
  • Sliding contacts for enhanced reliability
  • Trouble-free maintenance as no shaft system to disassemble
  • Electrically very strong; tie-in resistors are seldom needed

Get to know more

Document title ID
Technical guide 1ZSE 5492-104
Declaration of conformity 1ZSC000498-ABM
Ordering data form (From Ludvika, Sweden)
Please note that this is an interactive form, which can be filled in, saved and sent to us by e-mail.
1ZSC 5492-167
Ordering data form (From Alamo, TN, USA)  US 5492 0042-A
Ordering data form explanations 1ZSC000498-AAN
User's manual 1ZSE 5492-154
Design criteria for OLTC oil conservator type UZ 5492 0083-6
Installation and commissioning guide 1ZSE 5492-115
Maintenance guide 1ZSE 5492-123
Repair guide 1ZSE 5492-128
Spare parts list 1ZSC000562-ACU
   
Accessories and protection devices 1ZSC000562-AAD
Oil filter unit, type HPS 27/27, 54 1ZSC000562-AAF
Oil filter unit, type OLU 1ZSC000562-AAR

Insulation level Connection Type of mounting Drawing number
200, 250 E Bolted 5492 0089-18
N, T Bolted 5492 0089-2
Welded 5492 0089-6
380
N, T Bolted 5492 0089-3
Welded 5492 0089-7
550, 650

N Bolted 5492 0089-4
Welded 5492 0089-8
T Bolted 5492 0089-10
Welded 5492 0089-11

The drawing shows Drawing number
Accessories placement, in-tank oil conservator with or without oil filter 5492 0089-9
Accessories placement, separate oil conservator with or without oil filter 5492 0089-13
Accessories placement, in-tank oil conservator with oil filter 5492 0089-16
Accessories placement, separate oil conservator with oil filter 5492 0089-17
Terminal board UZE and UZF 5492 853-42
Two connection openings FL21 UZE 5492 0089-12
Connection of oil filter unit to UZ 5492 0090-20
Ball valve 5492 0083-14
Pressure relief device - flow diameter 130 mm - Qualitrol 5492 0083-15
Pressure relief device - flow diameter 50 mm, standard - Comem 1ZSC003721-AAW
Pressure relief device - flow diameter 50 mm, class C5M-H - Comem 1ZSC003721-AAV
Temperature relay 1ZSC003716-AAM
Temperature sensor 1ZSC005333-AAF
Thermo switch housing 5492 0083-27
Thermo switch housing with switch 5492 0083-35

Number of positions Max. number of turns
5 + 5 5492 0399-1
6 + 6 5492 0399-2
7 + 7 5492 0399-3
8 + 8 5492 0399-4
9 + 9 5492 0399-5
10 + 10 5492 0399-6
11 + 11 5492 0399-7
12 + 12 5492 0399-8
13 + 13 5492 0399-9
14 + 14 5492 0399-10

Movie title ID
Tap-changers: Based on traditions - geared for change 1ZSC000717-AAM
Life cycle support: Training centers 1ZSC000717-ABD
It's all about commitment: Life cycle support 1ZSC000717-ACX
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