The document summarizes ABB's SafeStart Motor Control Centre (MCC), an optimized solution for motor control in mining applications. Key points: 1) SafeStart was developed in 2012 as an Australian optimized MCC solution and fully type tested to Australian standards in 2013. 2) SafeStart uses a demountable construction, rail-mounted electrical components, and interlocked modules that cannot be inserted if the isolator is on. 3) Extensive testing was conducted including temperature rise limits, short-circuit withstand strength, protective circuit effectiveness, and internal arc containment, meeting relevant Australian standards.

1. SafeStart introduction - DS October 2013
ABB Low Voltage SafeStart MCC
Optimised Solution for Mining
© ABB Group
November 4, 2013 | Slide 1

2. SafeStart Motor Control Centre
Introduction


The demand for an
Australian optimised Mining
MCC solution resulted in
the development of the
SafeStart MCC in 2012

© ABB Group
November 4, 2013 | Slide 2
For over 25 years ABB
have offered the global
MNS MCC’s solution to the
Australian market.
In 2013 SafeStart was fully
type tested to AS/NZS
3439.1 at Testing &
Certification Australia.

3. SafeStart Motor Control Centre
Design Aspects

Demountable (W-F-F design) IP54, Form 4a construction

Arc Fault Testing to AS3439.1 Annex ZD and IEC TR 61641

Choice of components:
Live Line Monitor ,ELR & controls
Conventional or
Smart MPR (M10X and UMC)
© ABB Group
Month DD, Year
| Slide 3

4. SafeStart Motor Control Centre
Design Aspects – Functional Units

Rail mounted electrical components

Handles for easy handling when removed

Interlocked so module can’t be inserted when
Isolator is “On”


| Slide 4
White mounting plates

© ABB Group
Month DD, Year
Isolator and Door padlocking
Lift off hinges

5. SafeStart Motor Control Centre
TTA to AS/NZS3439.1:2002
Requires Type Test –
Verification of
SafeStart
8.2.1
Temperature-rise limits
Diversity 1
8.2.2
The dielectric properties
690V/1000V/8kV
8.2.3
The short-circuit withstand strength
80kA 1 sec.
8.2.4
The effectiveness of the protective
circuit
8,2,5
Clearances & creepage distances
8.2.6
Mechanical operations
200 operations
8.2.7
Degrees of protection & internal
separation
IP54 – Form 4a
Cl.
© ABB Group
Month DD, Year
| Slide 5

6. SafeStart TTA to AS/NZS3439.1:2002
Clause 8.2.1- Temperature-rise limits

Temperature Monitoring:
Incomer, Main Bus, Dist. Bus & Outgoing units


© ABB Group
Month DD, Year
| Slide 6
183 sensors, 16 for each Outgoing Unit
To reach final temperature takes 5 to 12 hours

7. SafeStart TTA to AS/NZS3439.1:2002
Clause 8.2.2 Short-circuit Withstand Strength


Incomer

| Slide 7
Main Busbars

© ABB Group
Month DD, Year
80kA, 690V, 1 sec.
Outgoing Functional units

8. SafeStart TTA to AS/NZS3439.1:2002
Clause 8.2.7 Degree of Protection IP54

© ABB Group
Month DD, Year
| Slide 8
Enclosed dust chamber which
maintains the talcum powder
in suspension - SafeStart
under test for 8 hours

Splashing of water from any
direction shall have no
harmful effect

9. SafeStart LV MCC
Internal Arc Fault Containment (IAC)

© ABB Group
November 4, 2013 | Slide 9
To AS/NZS3439.1 Annex ZD . “ Standard Tests” & “Special
Tests” and IEC TR 6164. Prospective Current 80kA, 415
V, 300 miliseconds

10. ABB Low Voltage Switchgear Solutions
Customer’s Choice

Proven modular construction:
Incomers, Busbars & Starters ,
Short - circuit, temperature rise, IP and IAC tested

Choice :
Outgoing units - Withdrawable or Demountable.
SCPD - MCCB or Fuses.
MPR - Conventional or Intelligent
© ABB Group
Month DD, Year
| Slide 10