A Variable Speed Drive (VSD) is the modern answer to motor starting and control.

VSD

A VSD allows a standard electric motor to run at a variety of speeds and to self-adjust, as it is running.
This has huge advantages over conventional DOL (Direct On Line) starters which run only at a fixed speed and are relatively power hungry as a result.
Fitting VSDs to a new pumping system from the start lets you select more efficient pumps and a wide range of duties. A single large pump could be used to run several Centre Pivots at once (at full speed) or just one pivot (with the pump running slowly), this means fewer pumps, simpler management and lower power consumption.
Fitting VSDs to existing motors saves power (Inherent 10% power saving over DOL setups), allows for automation, reduced labor costs and reduced power wastage due to over pumping.
What are the latest Irrigation advances with VSD's?
In line booster pump stations, do away with unnecessary (and expensive) holding dams
Block irrigation (Micro & Drip) can be very finely managed and are more efficient with pressure set point control

What are the advantages of fitting VSDs?

Power saving

  • Better, more efficient pump selection
  • Accurate pressure management – consistent pressures without over pumping

Management

  • Extensive automation options - Remote startup
  • Auto restart after power cut
  • Cell-phone control and monitoring

System protection

  • Slow speed pump start up
  • Eliminates water hammer
  • Reduced wear and tear on pump and motor
  • Auto motor limiting – Overload and motor burnout protection
  • Pressure control – pipe line burst safety
  • “Run-dry” protection on pumps

Power factor correction

  • Inherent in VSD technology is power factor correction of better than 0.93 with no capacitors.

Are there any negatives to having a VSD?

  • Expense – but with a short payback period - Predicted power price increases will further shorten payback
  • Complex technology – tried and tested in Zambia (for a long time in other industries) – good back up in Zambia.
  • Sensitive to power surge – Drop out fuses and protection must be installed.
  • These protect from fluctuating voltage and power quality and are a worthwhile addition to any system, even those without VSDs

news icon

Santas Shoe Box 2018

 Soup days, Cake sales, raffles and 1 minute bid or buy antics  became part of our Irritech 2018 pledge to Santas Shoebox Project,   We managed to raise  enough funds to hand pick and pack 80 Sant...

September 2018 Competition Winner

Congratulations to Robert Scott for winning this month's photo competition! The above photo is of Irritech's stand at the recent Underberg Show.

August 2018 Competition Winner

Congratulations to Majorie Milambo for winning this month's photo competition! The above photo is of Majorie's crops under the dripkit irrgation purchased through Irritech.

Farewell Lorraine

It is with a sad heart that we bid Lorraine Mutale farewell. Lorraine, has made the brave decision to head back to school to study Business Administration. After 4 years with Zambian Irritech, Lorrain...

Kamberg Outdoor Challenge 2018

Irritech was a proud sponsor of this year’s Kamberg Outdoor challenge! As we have come to expect the day was wonderfully organized and perfectly executed, with the usual chilly morning, hot coffee an...

Santa's Shoebox

There is much excitement in the Irritech Offices as pledging for Santa Shoebox opens today. After months of collection drives, soup-days, cake-sales and auctions, we have finally been able to pledge o...

Farewell Brett

After a long career at Zambian Irritech, today we say farewell to Brett Pearman. Brett has decided to pursue his dream of starting his own business, and will be contracting to Irritech on some of our ...

July 2018 Competition Winner

Congratulations to Ronel Christie for winning this month's photo competition! The above photo is of Lisa, who at age 19 has purchased her first Valley Centre Pivot through Irritech.

Zambian Irritech Open Day

The first Zambian Irritech Open Days were held on the 15th & 16th June 2018 at the Irritech premises in Chilanga. The days were focused on connecting with current clients as well as meeting new prospe...

June 2018 Competition Winner

Congratulations to Stacey Lawrence for winning this month's photo competition!  

Farewell Caitlin

At the end of this month, we will be saying good bye to Caitlin Koch. She is in her 10th year of service, and has been commuting for 6 of these years from Wartburg where her and her husband farm. Cait...

1. 8300 trees planted in the Platbos Forest In March, our environmental CSI partner Greenpop, in partnership with the Platbos Conservation Trust, planted 8300 more trees to restore and expand the Pla...

1Zambia MTB

The FQM 1Zambia mountain bike race is a regular event on the MTB calendar for the year. A three day stage race set through the beautiful scenic terrains finishing off at the mighty Zambezi River. A...

May 2018 Competition Winner

Congratulations to Rob Geldart for winning this month's photo competition!  

Education is Key

“Education is the passport to the future, for tomorrow belongs to those who prepare for it today” – Macolm X Duncan Scott has been accepted to do a Post Graduate Diploma in Business Management at the...

We at Irritech are proud to support Greenpop and the great work that they do. Read below what they have been busy with over the summer months. 1. Greenpop’s Cape Town Urban Greening Programme Adapts ...

April 2018 Competition Winner

Congratulations to Caitlin Koch for winning this month's photo competition!  

Visiting Kazangula

Irritech is always on the look-out for ways to assist our customers. So in March two of our staff, Penny and Mukuka, made a trip from our branch in Lusaka to the Kazangula border crossing to learn mor...

Welcome Peter

Our Zambian branch welcomed Peter Munthali to the #Irriteam last week! We are super excited to have Peter joining out counter sales team in the Lusaka office! Next time you pop in at our shop, he ...

March 2018 Competition Winner

Congratulations to Robert Scott for winning this month's photo competition! The above photo shows Irritech's "Dripper Line Ripper", this implement pulls Netafim Drip line in below the surface, faci...

What is a VSD?

A Variable Speed Drive (VSD) is the modern answer to motor starting and control. A VSD allows a standard electric motor to run at a variety of speeds and to self-adjust, as it is running.This has h...

Musikili Triathlon & Trail Run

The annual Musikili Triathlon & Trail series was held this last weekend in Mazabuka, Zambia. It’s a popular one on the calendar and caters for the whole family and all types of athletes. Varied ev...

Valley Dealer Conference

On the 15th March Valley Irrigation SA held their annual dealer conference at Emperors Palace in JHB. Valley Dealers from all over Africa attended the event. This was a great way for various dealers f...

Family Drip Kit Promotion

Irritech cares about all their customers, from small growers to the corporate farmers. We want to help small growers kickstart their crops, and to do this we have some great Netafim products on offer...

Zambian Irritech Open Day

Our Zambian Branch is very excited to be hosting an “Open Day” this June 2018, at their Lusaka premises. A two-day Irrigation-focused event aimed at both Small-Scale and Commercial Farmers, providing...

New Hanover Prep Fishing Comp

New Hanover Prep hosted their 15th Annual Fishing Competition on Saturday this weekend. It was a great day out and the winning fish measured 59cm. For more info about NHP, visit their website at ...

February 2018 Competition Winner

Congratulations to Claire Falconer for winning this month's photo competition! We at Irritech get excited about our Valley Centre Pivots from a very young age...sometimes we even leave the house fo...

New Staff

Lumpa Masunga– Engineer Assistant   Lumpa is based at the Lusaka office and works alongside the engineers, helping them with their workflow and contributing to producing top notch designs that Irrit...

Black Friday

South Africa Spares 10% DISCOUNT on spares in store only Projects 1% DISCOUNT on a signed contract and proof of payment(deposit) Zambia Spares 15% DISCOUNT on spares in store only CASH DEAL V...

#SnapAPic

SNAP A PIC of IRRITECH! Our Early Christmas Present to YOU! Here’s how: 1. Snap a pic of one of our technicians working on your farm 2. Upload your photo and tag us in it @IrritechAgenciesInternat...

More Articles

More From: News