Home » Review

Laminated Busbar

Input AC Reactor

Laminated Busbar

This product has been discontinued and removed from our shelves.

A bus bar consists of one or more flat electrical conductors laminated and electrically insulated by a thin dielectric material which is encapsulated or sealed along the edges. This laminated bus bar could is low lead inductance and saves installation spaces. It is widely applied in Power Electronics, Communication Systems, Transportation and such field to improve system performance and reduce cost.

Features of Laminated Busbar
1. Low stray inductance
2. Minimal impedance, voltage drop
3. Reduce noise, electromagnetism and radio interference
4. Easy to install and maintain
5. Reduce the amount of devices; improve the integration density and reliability of the system
6. Concise and elegant

 Markets & Applications
Power Electronics:
Motor Drives
Inverters
Wind power
UPS systems
High density power distribution cabinets
Electric welding machines
Test Equipment		 Aerospace and Space:
Satellite systems
Aircraft
Missile systems
Military:
Submarines
Communication systems
Armored vehicles
Radar systems
Transportation:
Electric locomotives
Railway trains
Electric vehicles
Electric drive ships

Parameters of Laminated Busbar
1. Cooling method: wind cooling
2. Insulation class: E class for conventional (could be customized)
3. Stray inductance: depends on the structure of product
4. Distributed capacitance: depends on the structure of product
5. Rated voltage: adjustable to customer's requirements
6. Rated current (DC mainly): adjustable with a maximum of 1600A
7. Local discharge: adjustable according to customer's requirement
8. Overload: 100% overload (1 S)
9. Temperature rise: less than 40℃
10. Withstand voltage: AC3500V/50Hz/min
11. Insulated resistance: >10MΩ (DC1000V) Relative air humidity: 90%
12. Working temperature: -30℃~105℃
13. Storage temperature: -40℃~70℃
14. Altitude: Lower than 2000m: rated current
Higher than 2000m: 1% decrease/100 m

Selection of Insulation Materials:
Low lead inductance of Bus bar could be achieved by using excellent insulation materials. In order to meet all the insulation or environmental requirement, customer could choose the below materials for your best application.

Material 　 Density
(g/cm3)		 Thermal Expansion Coefficient Thermal Conductivity W/(kg.K) Permittivity (f=60Hz) Dielectric Strength (kV/mm) Flamm-
ability Rating		 Continuous Use Temperature (℃) Water Absorption (%) /24h Price General Characteristics
NOMEX 0.8~1.1 　 0.143 1.2 9 94 V-0 220 　 High Flame resistance; Thermal resistance; Strong corrosion protection.
NMN 1.1~1.3 　 0.136 2.4 14 94 V-1 155 　 Middle Good electrical and mechanical performance. High overloading capability.
DMD 1.2 　 0.129 4.3 11 94 V-1 155 　 Low High temperature proof; excellent electrical and mechanical performance.
NHN 1.1 　 0.141 4.8 8 94 V-0 155 　 High Good electrical performance; High overloading capability; Flame resistance.
Polyimide
(PI)		 1.42 20 0.094 3.5 9 94 V-0 220 0.24 High High temperature proof; excellent electrical performance; Radiation resistance; Flame resistance.
Polyvinyl Fluoride (PVF) 1.38 53 0.126 10.4 19.7 94 V-0 105 0 High Excellent electrical and chemical performance. Low water absorption; Flame resistance.
Mylar (PET) 1.38~1.41 60 0.128 3.8 25.6 94 V-2 120 0.1~0.2 Low Good electrical performance; Corrosion protection; Low water absorption; Low price.
Epoxy Resin 1.32 45~65 0.18 3.5~4.0 15.7 94 V-0 155 0.1 Low Stable chemical performance; Low water absorption; Flame resistance.