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Designed to ensure safe and stable voltage regulation across electrical networks
Product Overview
Substation Power Transformer ONAF Step Down 34.5kv To 480v Electrical Substation Transformer
A substation is a critical node in an electrical grid that facilitates the transmission and distribution of electricity. Substations are equipped with essential components such as transformers, circuit breakers, switches, and monitoring systems. Their primary purpose is to adjust voltage levels, route power flow, and ensure system stability and safety.
Leilang Electric's substation transformers are designed to meet ANSI/IEEE and IEC standards, with capacities ranging from 150KVA to 63MVA and voltage ranges typically from 2.4KV to 69KV. They feature low partial discharge, low loss, low noise, light weight, and long service life.
Main Specifications
No.
Item
Unit
Requirement
1
Type
~
oil type
2
Rated capacity
kVA
2000/2300/2576
3
No. of Phase
~
3
4
Primary Voltage
V
34500Y/19920
5
Secondary Voltage
V
480Y/277
6
Tapping range
~
±2*2.5
7
Cooling method
~
ONAN/ONAF
8
Rated frequency
Hz
60
9
Vector group
~
YNyn0
10
Insulation class
~
A
11
Temperature rise
K
55/55(Fn)/65(Fn)
12
Impedance
%
6.5
13
Winding material
~
Aluminum
14
Core material
~
silicon steel
15
Insulation liquid material
~
Mineral oil
16
Service condition
~
outdoor
Standard Specifications
LBOR Switch
External Lockable Gauges, Bayonet Fuses, and Switch
Liquid Temperature Gauge (Dial-type Thermometer)
External Lockable Drain & Sample Valve
Liquid Level Gauge
Pressure Vacuum Gauge
Pressure Relief Valve
DOE 2016 Efficiency
All Stainless Steel Hardware
Optional Specifications
Gauges with Alarm Contacts
Fan Package
Bi-Directional (Step-Up) Rated with Electrostatic Shield
Throated Connection for Close-Coupling
External Drain and Sample Valve in Lockable Box
Skid-Mounted Options
K-Factor up to K-13
Extended Cabinet Depth to allow for T-OP connectors
Dual Voltage
FR3
Inert Gas Oil Preservation System (High Voltage)
Fan Package (High Voltage)
Product Specifications
Rated Capacity
High Voltage
Low Voltage
Connection Symbol
Short Circuit Impendence
No-load loss
On-load loss
Dimension
Weight
(kVA)
(KV)
(V)
(%)
(W)
(W)
W*H*D(mm)
(kg)
800
4.16KV
12.47KV
13.2KV
13.8KV
24.94KV
34.5KV
or others
208/120V
480/277V
600V
12470V
13200V
13800V
or others
Dyn1
Ynyn0
Dyn11
Dd0
Ynd11
or others
2.7
3.1
4.35
5.75
6
980
9350
1060*1500*1780
2050
1000
1160
11500
1085*1570*1800
2450
1250
1380
13900
1160*1610*1890
2900
1600
1660
16600
1190*1630*1950
3400
2000
2030
18300
1260*1700*2090
4100
2500
2450
19600
1150*2150*2250
4750
3000
3240
26500
1900*2600*2150
6500
5000
4500
27000
2500*2210*3180
9500
7500
7200
32000
3660*3100*5100
13600
10000
8500
35500
3830*2640*2216
15800
Production Process
Frequently Asked Questions
Can I have a sample order?
Yes, we welcome sample orders to test and check quality.
What is the lead time?
Mass production time 15-25 days.
How long is the warranty?
24 months from B/L. If there are any accessory problems, just provide photos of damaged accessory, then we will provide free service. According to product quantity, we provide easily damaged accessories for free. We also provide technical support if needed.
Is OEM/ODM available?
Yes! We are a manufacturer with our own R&D team and can customize products according to customer's drawings or requirements. Customized services include: custom colors and functions, custom packaging, customer logo printing, and other product ideas we can help design and produce. All customization must be confirmed before production.
How to control product quality?
Our company owns core technology and all products hold CE certification. We have professional engineers and workers strictly follow drawings. Each process has technical instructors. QC supervisors regularly inspect production. We conduct performance tests during production and comprehensive quality tests upon completion.