High Voltage 40.5KV Composite Dry Type Wall Bushings Transformer Bushing Insulator

• Application: High-voltage, Low-voltage, High-temperature
• Material: Porcelain
• Structure: Bushing Insulator
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: A Type Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Electrical Installation
• Connection Method: Trough Type
• Certification: CE, ISO9001
• Color: Gray/Brown
• Brand: NJREC or OEM
• Delivery Time: 20 days
• Voltage: 40.5KV-550KV
• Package: Wooden Pallet
• Model: Condenser Type
• Transport Package: Pallet
• Specification: Porcealin
• Trademark: NJREC
• Origin: China
• Production Capacity: 20000pieces/Months
• Package Size: 20.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 50.000kg

Product Description

Condenser Transformer bushings
Nanjing Rainbow Electric Co., Ltd Condenser bushings product are classified as Wall Bushing, Transformer Bushing, GIS Lead-out Bushing, Oil/Oil bushing that connecting transformer and oil-filled equipment, Oil/SF6 bushing that connecting transformer and GIS. According to the capacitive main insulation,product are classified as Oil Impregnated Paper (OIP) Capacitor Bushing, Resin Impregnated Paper(RIP) Bushing, Glassfiber Reinforced Plastic (GFRP) Dry-type Bushing and Vacuum Epoxy Resin Impregnated Fiberglass (RIP) Capacitor Bushing.

Key Technical Parameters-IEC
Standard	IEC 60137-2017
Highest voltage for equipment Um	kV	72.5	100	123	145	170
Rated frequency	Hz	50/60	50/60	50/60	50/60	50/60
Lightning impulse (BIL)	kV	325	450	550	650	750
Maximum Rated Current	A	3150	3150	3150	3150	3150

 

1. Introduction (Dry-type Bushing)

NJREC dry type high voltage bushing are with following advantages: no oil, no gas, no SFogas, small volume, light weight, free for maintenance, can be installed with high accurate current transformer.

For the electrical insulation performance, the partial discharge are developed to less than 5pC from the former 100pC and the former institute research become mass production, while fine quality is guaranteed. Experiences on more different bushings are also accumulated, such as high current bushing, special-shaped bushings,bushings for high voltage apparatus.

The rated voltage&current is: Rated voltage:40.5, 72.5, 126, 252, 550kV Rated voltage:630-2000A(or up to 5000A as per requirement)

2.Application condition
The bushings are applied for altitude 1000m-2000m and lower district, if higher than 2000m, technical condition shell be negotiated again.

3. Technical Standard.
Products are in compliance with GB/T 4109-2008 (IEC 60137 MOD)-Insulated bushings for alternating voltages above 1000 V.