TD-245

www.DataSheet.co.kr SUBJECT: Technical Specifications for VariSTAR® MUS MOV Arrester Modules – IEEE® Station/IEC Class 2 Technical Data TD-245 APPLICATION These epoxy-fiberglass reinforced modules containing Metal Oxide Varistors (MOV) are for use as active elements in IEC Class 2 and IEEE® station class gapless surge arresters when applied in appropriately designed housing. Individual modules are sealed within a plastic bag and display the module number, see Figure 3 and Figure 4. Table 1 Suggested Usage & Class Ratings IEC Energy Energy IEC High Absorption Absorption Cantilever Cantilever Line Current Level Level Strength Strength Ur Uc Dicharge IEEE® kJ/kV of Uc kJ/kV of Uc 12 mm Stud 1 inch Stud (Rating) IN (MCOV) Class HCSD (1 impulse) (2 impulse)* Iref Vref Min (Nm) (Nm) 3-60 kV 10 kA 2.55-48 kV 2 100 kA 3.4 5.5 6.0 mA Uc x 1.24 1,130 1,695 * Rating based on two impulses with 1 minute between impulses. ** The dimensions refers to the thread size in the electrodes and to achieve the cantilever strength shown, the corresponding stud size must be used. Table 2 Maximum Residual Voltages – Protective Characteristics – VariSTAR MUS MOV Arrester Modules Ur Arrester Rating (kV rms) 3 6 9 10 12 15 18 21 24 27 30 33 36 39 42 45 48 54 60 IEC Steep Current IEEE® Residual Front-of-Wave Voltage Protective Level (kV crest) (kV crest) 9.2 9.3 17.9 18.2 26.8 27.2 29.3 29.7 35.6 36.0 44.2 44.7 53.0 53.7 58.9 59.7 67.5 68.4 76.1 77.0 84.4 85.4 95.0 96.2 100 101 109 111 118 119 126 12...