On-load tap-changers type UCL

The UC family is a group of diverter switch on-load tap-changers. They come in a wide range of models with a rating suitable for every application. They are mounted inside of the transformer tank, suspended from the transformer cover. The UC types operate with conventional arc quenching in oil diverter switches.

The UCL model is the mid-size of the UC types and is suitable for transformers up to 850 MVA with a BIL rating of 1175 kV and current rating of 925 (2400) A.

Extend your transformer’s lifetime and easily upgrade on-load tap-changers type UCL with vacuum technology.

Product scope

Base technology: Conventional, resistance, in-tank, diverter switch
Common applications: Network, special, industrial, HVDC

	Tap-changer placed in the neutral point of the winding	Other placements of the tap-changer
Highest voltage for equipment (Um)	362 kV	362 kV
Max lightning impulse (BIL)	1175 kV	1175 kV
Max current 3-phase 1-phase (one tap-changer/phase)	925 A 2400 A	N.A. 2400 A
Enforced current splitting 1-phase (one tap-changer/phase)	2700 A	2700 A
Max step voltage	4500 V	4500 V

Why Hitachi Energy?

Unique open design for quick and easy maintenance
Maintenance in any tap position and without dismantling the shaft system, thus eliminating the risk for failure from improper assembly or alignment
No online oil filter is needed
Unsurpassed maintenance intervals

Get to know more

Document title	ID
Technical guide	1ZSC000562-AAW
Declaration of conformity	1ZSC000498-ABN
Ordering data form (.xlsm) Please note that this is an interactive form, which can be filled in, saved and sent to us by e-mail.	1ZSC000498-ACC
Ordering data form explanations	1ZSC000498-AAP
User's manual	1ZSE 5492-155
Installation and commissioning guide	1ZSC000562-AAZ
Maintenance guide	1ZSE 5492-125
Repair guide	1ZSE 5492-129
Spare parts list	1ZSC000562-ACW

Accessories and protection devices	1ZSC000562-AAD
Oil filter unit, type HPS 27/27, 54	1ZSC000562-AAF
Oil filter unit, type OLU	1ZSC000562-AAR

Insulating level (kV)	Selector	Switching type	Connection	Max. rated through-current (A)	Number of positions	Drawing number
380 650 750 1050 1175 ²⁾	III	L	N	600	5-22	5492 0085-1
			N	925		5492 0085-2
			E, T, B1 ¹⁾	600		5492 0085-3
			E, T, B1 ¹⁾	925		5492 0085-4
			E, T	1800		5492 0085-5
			E, T	2400		5492 0085-6
			B2 ¹⁾	600		5492 0085-7
			B2 ¹⁾	925		5492 0085-8
		R, D	N	600	9, 13	5492 0085-9
				600	11, 15-35	5492 0085-10
				925	9, 13	5492 0085-11
				925	11, 15-35	5492 0085-12
			E, T, B1 ¹⁾	600	9, 13	5492 0085-13
				600	11, 15-35	5492 0085-14
				925	9, 13	5492 0085-15
				925	11, 15-35	5492 0085-16
			E, T	1800	9, 13	5492 0085-17
				1800	11, 15-35	5492 0085-18
				2400	9, 13	5492 0085-19
				2400	11, 15-35	5492 0085-20
			B2 ¹⁾	600	9, 13	5492 0085-21
				600	11, 15-35	5492 0085-22
				925	9, 13	5492 0085-23
				925	11, 15-35	5492 0085-24
		L	N	925	21	5492 0085-26
¹) B1 (1 phase) and B2 (2 phases) are combined components, forming the "B-group". ²) Same as 1050, but with different shielding rings. Models available on request.

Insulating level (kV)	Selector	Switching type	Connection	Max. rated through-current (A)	Number of positions	Drawing number
380 650 750 1050	F	L	N	600, 925	5-18	1ZSC026120-ABX
			E, T, B11)	600, 925, 1800		1ZSC026120-AAP
			E, T	2400		1ZSC026120-AAS
			B21)	600, 925		1ZSC026120-AAT
		R, D	N	600, 925	8-9, 12-13	1ZSC026120-AAU
			N	600, 925	10-11, 14-35	1ZSC026120-AAV
			E, T, B11)	600, 925, 1800	8-9, 12-13	1ZSC026120-AAW
			E, T, B11)	600, 925, 1800	10-11, 14-35	1ZSC026120-AAZ
			E, T	2400	8-9, 12-13	1ZSC026120-ABA
			E, T	2400	10-11, 14-35	1ZSC026120-ABB
			B21)	600, 925	8-9, 12-13	1ZSC026120-ABC
			B21)	600, 925	10-11, 14-35	1ZSC026120-ABD
1) B1 (1 phase) and B2 (2 phases) are combined components, forming the "B-group".

The drawing shows	Drawing number
Mounting on active part	5492 0086-1
Accessories placement: Standard top section without oil filter unit	5492 0086-2
Accessories placement: Top section for oil filter unit	5492 0086-3
Accessories placement: Top section with temperature switch	5492 0086-5
Accessories placement: Top section with two valves R1"	5492 0086-4
Accessories placement: Top section with two valves R1"	5492 0086-8
Drain valve	5492 0083-10
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 C5-M - Comem	1ZSC003721-AAV
Bevel gear (on top section, T-shape)	5492 0083-19
Bevel gear (on top section, L-shape)	1ZSC004021-AAD
Bevel gear (in external drive shaft system)	5492 0083-1
Support for bevel gear (on external drive shaft system)	5492 999-11
Pressure relay	5492 0083-2
Oil flow relay	1ZSC003527-ABB
External drive shaft system	5492 0083-4
Bevel gear (in external drive shaft system)	5492 0083-1
Temperature relay	1ZSC003716-AAM
Temperature sensor	1ZSC005333-AAF
Temperature sensor and pressure relay	5492 0083-33
Thermo switch housing	5492 0083-22

Number of positions	Max. number of turns	Min. number of turns
5	5492 0367-11	5492 0370-11
6	5492 0367-12	5492 0370-12
7	5492 0367-13	5492 0370-13
8	5492 0367-14	5492 0370-14
9	5492 0367-1	5492 0370-1
10	5492 0367-2	5492 0370-2
11	5492 0367-3	5492 0370-3
12	5492 0367-4	5492 0370-4
13	5492 0367-5	5492 0370-5
14	5492 0367-6	5492 0370-6
15	5492 0367-7	5492 0370-7
16	5492 0367-8	5492 0370-8
17	5492 0367-9	5492 0370-9
18	5492 0367-10	5492 0370-10
19	5492 0367-15	5492 0370-15
20	5492 0367-16	5492 0370-16
21	5492 0367-17	5492 0370-17
22	5492 0367-18	5492 0370-18

Number of positions	Max. number of turns	Min. number of turns
9	5492 0368-1	5492 0371-1
11	5492 0368-2	5492 0371-2
13	5492 0368-3	5492 0371-3
15	5492 0368-4	5492 0371-4
17	5492 0368-5	5492 0371-5
19	5492 0368-6	5492 0371-6
21	5492 0368-7	5492 0371-7
23	5492 0368-8	5492 0371-8
25	5492 0368-9	5492 0371-9
27	5492 0368-10	5492 0371-10
29	5492 0368-11	5492 0371-11
31	5492 0368-12	5492 0371-12
33	5492 0368-13	5492 0371-13
35	5492 0368-14	5492 0371-14

Number of position	Max. number of turn	Min. number of turn
9	5492 0369-1	5492 0372-1
11	5492 0369-2	5492 0372-2
13	5492 0369-3	5492 0372-3
15	5492 0369-4	5492 0372-4
17	5492 0369-5	5492 0372-5
19	5492 0369-6	5492 0372-6
21	5492 0369-7	5492 0372-7
23	5492 0369-8	5492 0372-8
25	5492 0369-9	5492 0372-9
27	5492 0369-10	5492 0372-10
29	5492 0369-11	5492 0372-11
31	5492 0369-12	5492 0372-12
33	5492 0369-13	5492 0372-13
35	5492 0369-14	5492 0372-14

Number of positions	Max. number of turns	Min. number of turns
5	1ZSC004307-AAA	1ZSC004308-AAA
6	1ZSC004307-AAB	1ZSC004308-AAB
7	1ZSC004307-AAC	1ZSC004308-AAC
8	1ZSC004307-AAD	1ZSC004308-AAD
9	1ZSC004307-AAE	1ZSC004308-AAE
10	1ZSC004307-AAF	1ZSC004308-AAF
11	1ZSC004307-AAG	1ZSC004308-AAG
12	1ZSC004307-AAH	1ZSC004308-AAH
13	1ZSC004307-AAJ	1ZSC004308-AAJ
14	1ZSC004307-AAK	1ZSC004308-AAK
15	1ZSC004307-AAL	1ZSC004308-AAL
16	1ZSC004307-AAM	1ZSC004308-AAM
17	1ZSC004307-AAN	1ZSC004308-AAN
18	1ZSC004307-AAP	1ZSC004308-AAP

Number of positions	Max. number of turns	Min. number of turns
9	1ZSC004309-AAA	1ZSC004310-AAA
11	1ZSC004309-AAB	1ZSC004310-AAB
13	1ZSC004309-AAC	1ZSC004310-AAC
15	1ZSC004309-AAD	1ZSC004310-AAD
17	1ZSC004309-AAE	1ZSC004310-AAE
19	1ZSC004309-AAF	1ZSC004310-AAF
21	1ZSC004309-AAG	1ZSC004310-AAG
23	1ZSC004309-AAH	1ZSC004310-AAH
25	1ZSC004309-AAJ	1ZSC004310-AAJ
27	1ZSC004309-AAK	1ZSC004310-AAK
29	1ZSC004309-AAL	1ZSC004310-AAL
31	1ZSC004309-AAM	1ZSC004310-AAM
33	1ZSC004309-AAN	1ZSC004310-AAN
35	1ZSC004309-AAP	1ZSC004310-AAP

Number of positions	Max. number of turns	Min. number of turns
9	1ZSC004311-AAA	1ZSC004312-AAA
11	1ZSC004311-AAB	1ZSC004312-AAB
13	1ZSC004311-AAC	1ZSC004312-AAC
15	1ZSC004311-AAD	1ZSC004312-AAD
17	1ZSC004311-AAE	1ZSC004312-AAE
19	1ZSC004311-AAF	1ZSC004312-AAF
21	1ZSC004311-AAG	1ZSC004312-AAG
23	1ZSC004311-AAH	1ZSC004312-AAH
25	1ZSC004311-AAJ	1ZSC004312-AAJ
27	1ZSC004311-AAK	1ZSC004312-AAK
29	1ZSC004311-AAL	1ZSC004312-AAL
31	1ZSC004311-AAM	1ZSC004312-AAM
33	1ZSC004311-AAN	1ZSC004312-AAN
35	1ZSC004311-AAP	1ZSC004312-AAP

Movie title	ID
Tap-changers by ABB: Based on traditions - geared for change	1ZSC000717-AAM
Life cycle support: Training centers	1ZSC000717-ABD
Vacuum - a logical progression: Upgrading made as easy as 1 - 2 - 3	1ZSC000717-ABE
It's all about commitment: Life cycle support	1ZSC000717-ACX

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Contate-nos

On-load tap-changers type UCL

Get to know more

Catalogs and instructions

Dimension drawings type UCL../III

Dimension drawings type UCL../F

Additional dimension drawings

Connection diagrams type UCLL./III

Connection diagrams type UCLR./III

Connection diagrams type UCLD./III

Connection diagrams type UCLL./F

Connection diagrams type UCLR./F

Connection diagrams UCLD./F

Movies

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