Email:i-trade1@lnjldq.com Liaoning Jinli Electric Power Electrical Appliance Co.,Ltd

Liaoning Jinli Electric Power Electrical Appliance Co.,Ltd

On-load Tap-changer

On-load Tap-changer

On-load Tap - Changer A tap-changer is a mechanism in transformers which allows for variable turn ratios to be selected in discrete steps. Transformers with this mechanism obtain this variable turn ratio by connecting to a number of access points known as taps along either the primary or...

Product Details

On-load Tap-Changer
 A tap-changer is a mechanism in transformers which allows for variable turn ratios to be selected in discrete steps. Transformers with this mechanism obtain this variable turn ratio by connecting to a number of access points known as taps along either the primary or secondary winding. These systems usually possess 33 taps (one at center "Rated" tap and sixteen to increase and decrease the turn ratio) and allow for ±10% variation (each step providing 0.625% variation) from the nominal transformer rating which, in turn, allows for stepped voltage regulation of the output.

The uniformly designed transformer oil filter on load tap changer has got the advantages of advanced structure. Oil filter on load tap selector has reliable operation, long service life and convenient maintain etc. these transformer tap-changers are applying to such oil-immersed power transformer of 50Hz, under 35KV rated voltage and 400A rated current.

Online oil filter function will extend the service life and maintenance time of tap changer.

Liaoning Jinli Electric Power Electrical Appliance Co., Ltd was founded in 1986. It is one of the leading companies that specialized in producing transformer accessories, such as off circuit tap changer, on load tap changer, temperature controller, pressure release valve etc. It well sells at Chinese domestic and abroad market such as Australia、New Zealand、Canada、Indonesia Peru and so on.

After more than 30 years development, the company has been strong in technical resource, and has accumulated rich experience of systematic design and practice and also established integrated product series.

Model Explanation
 SY□Z(Z) - □/□-□L
    S : three-phase
    Y : on load
    □: voltage connection model
    Z : adopting resistance transit
    Z : direct switch
    □: rated current
    □: rated voltage
    □: number of voltage regulation grades
    L : online oil filter

Main Technical Data

Application Scope

Oil-immersed Distribution Transformer 

Connection Model

SYXZZ : three phase Y connection neutral point linear

voltage regulation

SYJZZ : three phase central point bridge voltage regulation

SYTZZ : three phase any connection linear voltage regulation

Three-phase Max. Rated Current  

400A

Max.Rated Voltage

600V

Max.Voltage of Device Um

40.5KV

Max.Tap Positions

17 or others

Connection Model Shows as Following 

image002.pngimage004.pngimage006.png
(Y connection neutral point)(Y connection neutral point with lead wire)(Y connection central bridge point) 
image008.pngimage010.pngimage012.png
(D connection central bridge point)(D connection terminal point)(Auto type terminal point)

Sample Outline Dimension Diagram 

image014.png    

Sample Model Parameters

Serial number

Model No.

(A)

Rated

current

(v)

Rated

voltage

Installation dimension(mm)

H

H1

H2

H3

Md

1

SYXZZ 50/10 -3~5

50

10

615

305

120

60

M8

2

SYXZZ 100/10-5~9

100

10

682

350

125

66

M8

3

SYJZZ 100/10-5~7

100

10

750

440

125

100

M8

4

SYJZZ 200/35-5~9

200

35

1500

190

170

715

M12

5

SYJZZ 300/35-5~9

300

35

1500

190

170

715

M14

6

SYJZZ 400/35-5~9

400

35

1700

220

235

910

M16

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