FMCC EUROPE
Components and technical solutions for power electronics

IGBT Filtres

Introduction

IGBTs require capacitors with extremely low inductance for efficient operation. NCL has designed a range of these capacitors using state of the art metallised dielectric systems, based on design criteria as featured in our DC filter range. Being aware of the space constraints of these applications, care has been taken during the design phase to optimise both weight and volume from the outset.

Application

NCL IGBT filter capacitors are designed for a wide range of applications, embracing tramcars, trolley buses, metro systems, light rail and railways in which converters, choppers and inverter drives are required. They are specifically designed with low inductance properties to accommodate the needs of these devices.

Technology

The same design criteria as the standard filtering capacitors are used for this range. For lower voltages, capacitors are dry construction and encapsulated in flame resistant epoxy resin. At higher voltages they are impregnated in a stable, biodegradable oil.

Containers and Terminations

These capacitors can be supplied in insulated boxes, alternatively in aluminium, mild steel or stainless steel containers. Low profile synthetic moulded terminals or copper strip line connections are available to suit each application.



Characteristics

NCL has manufactured many different styles of IGBT capacitors, all of which have been tailored to meet the exact electrical and mechanical requirements requested by our customers. Because this range is so diverse, NCL has refrained from tabulating a range of ratings and sizes, and provides the following details to indicate the limits of our design capabilities. NCL would be pleased to consider your requirements upon request.

Capacitance value:72µF to 1450 µF
Peak repetitive voltage (UN):900V to 4400V
Current rating (Imax):Dependent on customer specification
Operating frequency:Dependent on customer specification, typically 1kHz to 20kHz
Operating temperature (qamb):-40 to +70°C
Storage temperature:-40 to +85°C
International standard:In accordance with IEC 61071 & IEC 61881



GB Series - IGBT Filter Range
 
UN
(V)
C
(µF)
Imax
(Arms)
Ip
(A)
Rs
(mW)
900 1450 134 5580 0.56
1000 1200 128 5080 0.60
1100 1250 135 5780 0.54
1300 920 126 4960 0.61
1400 800 123 4620 0.64
1500 700 120 4300 0.68
1650 560 114 3880 0.74
1850 450 108 3460 0.81
2000 370 104 3140 0.87
2200 315 100 2900 0.93
2800 200 89 2300 0.97
3000 160 108 4300 0.69
3300 128 102 3880 0.75
3700 103 96 3460 0.82
4000 85 90 3140 0.89
4400 72 86 2900 0.97