110kV Level Three-phase On-load Tap-changing Electric Power Transformer

Description

Summary
We have adopted series of important reforms on the 110kV level three-phase oil-immersed on-load tap-changing transformer referring material, process and structure. The transformer has the features of small size, light weight, high efficiency, low loss, low noise, reliable operation etc. which can reduce a large amount of power network loss and operation expenses with significant economic beneffts.lt is suitable for power plant substation, heavy section plant ore enterprises etc.

Model and meaning

Main 110kV level three-phase on-load tap-changing power transformer technical parameters

Note 1: -5% tapping position is maximum current tapping.
Note 2: For boost transformer, it is advisable to adopt non-tapping structure. If there is any requirement for operation, subconnectors can be set up.
Note 3: When the average annual load rate of transformer is between 42% and 46%, the maximum operating efficiency can be obtained by using the loss value in the table.

6300kVA~63000kVA three-phase three-winding NLTC power transformer

Note 1:High, medium and low voltage winding capacity allocation is (100/100/100)% high, medium and low.
Note 2:The connection group label can be YNd11y10 as required.
Note 3:According to the user’s requirement, medium voltage can be selected as different from the voltage value in the meter or with taps.
Note 4:-5% tapping position is maximum current tapping.
Note 5:For boost transformer, it is advisable to adopt non-tapping structure. If the operation requires, tapping can be set up.
Note 6:When the average annual load rate of transformer is about 45%, the maximum operating efficiency can be obtained by using the loss value in the table.

6300kVA~63000kVA three-phase two winding OLTC power transformer

Note 1:On-load tap-changer, temporarily providing step-down structure products.
Note 2:According to user’s requirements, other voltage combination products can be provided.
Note 3:- 10% tapping position is maximum current tapping.
Note 4:When the average annual load rate of transformer is between 45% and 50%, the maximum operating efficiency can be obtained by using the loss value in the table.

6300kVA~63000kVA three-phase two winding OLTC power transformer

Note 1:On-load tap-changer, temporarily providing step-down structure products.
Note 2:High, medium and low voltage winding capacity allocation is (100/100/100)% high, medium and low.
Note 3:The connection group label can be YNd11y10 as required.
Note 4:- 10% tapping position is maximum current tapping.
Note 5:According to user’s requirement, medium voltage can be selected as different from the voltage value in the meter or with taps.
Note 5:When the average annual load rate of transformer is about 47%, the maximum operating efficiency can be obtained by using the loss value in the table.

6300kVA~63000kVA three-phase two winding OLTC power transformer

Main 110kV level three-phase on-load tap-changing power transformer technical parameters

Ordering instructions
Consumer needs to offer the following technical parameters when ordering:
Model, Product, rated volume, system voltage, voltage combination, connection symbol labeling, short circuit impedance, no-load lossfon-load loss, no-load current, rated frequency, cooling method, altitude, working environment and other requirements. Serial number.