ABB

Brady

Bussmann

Carlo Gavazzi

Control Techniques

Cornell Dubilier

Crouse-Hinds

Cutler Hammer

DDK

EBM-Papst

Federal Signal

Ferraz Shawmut

Idec

Joslyn Clark

Mean Well

MTE

NTE

Ohmite

Pilz

Powerex

Puls

Semikron

Sola

Vishay

Westcode

Yaskawa

(View All)
Sponsored Links

MTE Line/Load Reactors
MTE Line Reactor

Master distributor for MTE Guard-AC Line Reactors. Shop online and save!

MTE Filters
MTE Filters

EMI/RFI and harmonic filters available from MTE Corp. Check our stock!

MTE DC Link Chokes
MTE DC Link Chokes

Browse MTE DC Link Chokes online. Volume discounts available.

MTE Cabinets & Enclosures
MTE Cabinets

Browse cabinets and enclosures for MTE line reactors. Most popular models in stock.
MTE

MTE DC Link Chokes

DC Link Chokes

When added between the input rectifier and bus capacitor the link choke will improve the DC bus waveform and the AC input waveform. In this location the DC reactor will reduce the amount of AC ripple on the DC bus, reduce the AC input line harmonics and offer protection against nuisance tripping due to voltage spikes such as those caused by capacitor switching. However, a DC link choke, will not offer protection of the input rectifiers.

DC link chokes offer the advantage of maximizing the circuit inductance for power quality reasons, but without causing an AC input line voltage drop. DC link chokes can be used individually, typically on the positive DC bus, or in pairs with one each on both the positive and negative bus. When two DC reactors are used on the bus, the inductance is additive. You will need twice as much inductance on the DC bus as used on the AC input (per phase) to accomplish the same performance experienced with AC input reactors. For best performance, combine the use of both an AC input reactor and a DC link choke.

MTE Corporation DC Link Chokes are an economical means of filtering and controlling the DC bus voltage and current in a variable speed drive/inverter. They help reduce AC input line current harmonic distortion while absorbing DC bus voltage spikes. Link Chokes add protection and filtering but should not be considered a direct alternative to AC input or output reactors. While DC Link Chokes increase the internal filtering and have the ability to absorb spikes, because of their circuit location they do not protect the input bridge rectifier. They do not offer protection for the inverter output circuit due to their location on the DC bus.

Benefits:

  • Reduce AC Input Line Harmonics
  • Help Meet IEEE-519 Limits
  • Absorb Voltage/Current Spikes
  • Reduce AC ripple on DC bus
  • Reduce dV/dT and dI/dT rates
  • Solve nuisance tripping
  • Reduce DC Bus Transient Overvoltage

Applications:

  • AC PWM inverters/drives
  • DC to AC inverters
  • Variable frequency motor drives
  • Electric vehicle inverters