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72.5kV OIP Wall Bushing for Substations

The OIP condenser transformer and reactor bushing is primarily used for power transformers and reactors to serve as currents carriers for leading in and out high/medium and low voltage currents. Additionally, they provide insulation to power transformers and reactor's oil tanks.

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Product Parameters

| Company Profile

Nanjing Rainbow Electric Co., Ltd. (NJREC) is a leading manufacturer and supplier of electrical insulators and transformer bushings in China. Specializing in reliable electrical insulators for transmission lines and substations, NJREC delivers high-quality products tailored to meet industry standards. Additionally, the company provides comprehensive one-stop solutions for distribution transformers, power transformers, pad-mounted transformers, and wall-mounted applications, supporting efficient and safe power system operations.

| Product Introduction

Oil-Impregnated Paper (OIP) Condenser Wall Bushings are critical high-voltage insulation components for power systems, widely used in transformers and switchgear. Compared with Epoxy Resin Bushings, OIP Bushings boast higher voltage tolerance, with common voltage classes including 72.5kV, 145kV, 252kV, 363kV, 420kV, and 550kV.

Technical Parameters (Sample)

Maximum operating voltage (50/60Hz)	225kV
Rated Current	1250A
One minute power frequency withstand voltage(dry)	505kV
Partial discharge level at Um	≤10pC
Lightning impulse withstand voltage(dry)	1050kV
Creepage distance	≧7812mm
Installation angle	0-30°
Cantilever test load	2000N
Type of conductor	Draw lead
Internal insulation	OIP
Comply with standard	IEC60137

| Product Types

OIP Condenser Bushing	40.5kV ~2000kV OIP Condenser Transformer/Reactor Bushing
	40.5kV ~800kV OIP Condenser Transformer/Reactor Bushing with composite envelope
	40.5kV ~252kV Oil-Oil OIP Condenser Transformer Bushing
	126kV ~550kV Oil-SF6 OIP Condenser Transformer Bushing
	24kV ~40.5kV Heavy Current OIP Transformer Bushing
	72.5kV ~800kV OIP Condenser Wall Bushing

| Support Custom

OIP-BUSHING-DRAWING

| Factory Pictures

The OIP Condenser Bushing is a reliable and high-performance component, well-suited for diverse scenarios in the high-voltage electrical sector, delivering exceptional insulation and structural stability to guarantee secure and seamless power transmission and distribution operations.

condenser-bushing-factory

| Product Applications

Used globally in power systems across North America, South America, Australia, Southeast Asia, Africa, Europe, and over 50 regions. Meets international quality standards at competitive prices, outshining products with higher costs or lower reliability.

Choose Nanjing Rainbow Electric Co. for reliable, durable, and cost-effective solutions that comply with international standards, meeting the needs of expanding infrastructures.

OIP-BUSHING-applications

| Products Packages

| Certificates

NJREC has built a good reputation for high quality products, timely delivery and responsive customer service. And has kept its development process, considering his responsibilities and missions about being one of the esteemed and respectful companies in the transformer bushing, transmission line and substation industry.