PD CLC IEC/TS 60034-30-2:2021

What is PD CLC IEC /TS 60034-30-2 about? 

PD CLC IEC/TS 60034-30-2 is a technical specification, that specifies efficiency classes for variable speed AC motors, rotating electric machines. 

PD CLC IEC/TS 60034-30-2 covers machines designed for operation with sinusoidal fundamental current that are not designed to operated direct on-line (grid), for example permanent magnet synchronous machines with and without additional reluctance torque, sinusoidal reluctance synchronous machines and synchronous machines with DC field windings.  

Note 1: PD CLC IEC/TS 60034-30-2 applies to machines that: 

• Have a rated power PN from 0,12 kW to 1 000 kW 
• Have a rated voltage UN above 50 V up to 1 kV 
• Have a rated speed nN from 600 1/min up to 6 000 1/min regardless of the number of magnetic poles 
• Are capable of continuous operation at their rated operating point (torque/power, speed) with a temperature rise within the specified insulation temperature class 
• Are rated for any ambient temperature within the range of – 20 °C to + 60 °C 
• Are rated for an operating altitude up to 4 000 m above sea level 
• Geared motors including those incorporating non-standard shafts and flanges.  

Note 2: PD CLC IEC/TS 60034-30-2 does not cover: 

• Switched reluctance synchronous machines are not covered 
• Motors with mechanical commutators 
• Motors completely integrated with the driven machine (for example pumps, fans and compressors) that cannot be practically tested separately from the machine even with provision of a temporary end-shield and drive-end bearing. 
• Smoke extraction motors with a temperature class above 400 °C 

Who is PD CLC IEC/TS 60034-30-2 for? 

PD CLC IEC/TS 60034-30-2 on efficiency classes for variable speed AC motor is applicable for: 

• Manufactures and suppliers of electrical machines/AC motors 
• Retailers and dealers of various electrical machine/AC motors 
• Electronic/Mechanical components manufactures 
• Companies dealing with electrical machines and AC motors. 

Why should you use PD CLC IEC/TS 60034-30-2? 

Rotating electrical machine consists of a stator, rotor and air gap between them. Stator and rotor consist of winding in which the rotor is installed in the stem and then the stem connects to motor and other loads. 

PD CLC IEC/TS 60034-30-2 provides a technical specification which enables you to ensure the global harmonization of energy-efficiency classes for variable speed electric motors. It deals with all types of AC low-voltage electric motors that are rated for variable speed operation in their constant magnetic-flux speed range (base speed-range). 

PD CLC IEC/TS 60034-30-2 gives you the control over various procedures such as adjusting operating speed, control starting current, acceleration control, saves energy, controls stopping motor speed, which helps you in enhancing the overall efficiency of AC motors, giving them a longer life.  

What’s changed since the last update? 

PD CLC IEC/TS 60034-30-2:2021 supersedes PD IEC/TS 60034-30-2:2016, which is withdrawn.