Applications Areas Features
Yarn Conditioners Trouble Free Performance
Weaving, Dyeing Compact Design
Warping Long Functional Life
TFO's High Overload Capacity
Simplex Machines Excellent Voltage Regulation
Ring Spinning Systems  
Overhead Cleaners  
SL.No Parameters Specification
1 KVA Rating 0.1KVA to 250KVA
2 Construction Dry type Vacuum impregnated with Resin varnish
3 Voltages as per Requirement
4 K factor K0 (Non-K rated Txr for Linear Loads) &
K1, K4 , K7, K9, K13, K20 (Non-Linear Loads)
5 Phase Configuration 1PH input -1Ph Output
3PH Input - 3Ph Output
3PH Input-2Ph Output
3PH Input - 1Ph Output
6 Vector Group configuration Dd0, Dd2, Dd4,Dd6, Dd8, Dd10,Dyn1, Dyn5, Dyn7, Dyn11, Yd1, Yd5, Yd7, Yd11,
Dzn0, Dzn2, Dzn4, Dzn6, Dzn8, Yy0, Yy6, Yz1, Yz5, Yz7, Yz11
7 Frequency 50Hz ±3% &60Hz ±2%
8 Winding Material Copper ETP grade (99.95%) & Aluminum
9 Conductor Type Dual coat Enamel
Round wire, Rectangle Strip and Foil type (based on design requirement)
10 Core Material CRGO (MOH/M3/M4/M5/M6)
CRNO 35A250/35A270and Amorphous
11 Core Construction 90 deg Cut alternate stacking/45 deg Cut Mitre Core (step lap)
12 Insulation Class Class B (130) , Class F(155), Class H(180), Class R (220)
13 High Voltage Withstanding capacity 3KV AC for 1 minute
14 Insulation Resistance >500 Mῼ@ 500V DC
15 %Regulation < 2% ( as per Customer requirement)
16 % Impedance <4% (as per Customer requirement)
NUMAX can supply high Impedance transformers based on customer requirement
17 % Efficiency @ Full KVA Load, UPF 95% to 99%Based on requirement
18 Cooling Type 1) Air Natural (Natural Convection)
2) Air ForcedCooling
19 Transformer Thermal protection Thermal switch (Normally open type)is embeded in transformer windings, which can be conneted to either Cooing fan/LED/ Power shut down operations etc.
20 Electrostatic Shielding Provided Between Primary and Secondary
21 Humming Noise < 60 dB @ 1.5 meter distance
Isolation Transformer with PDU (Power distribution Unit)
22 Cabinet/Enclosure/Housing Cabinet (MS)can be provided with Single door/double door, lock and key protected , as per customer requirement.
23 Ingress Protection IP00 (No cabinet), IP20, IP22, IP30, IP31, IP32, IP40, IP42 and more
24 Switchgear MCB,
MCCBs,
Surge Protection Device (SPD),
Alarm/Hooter
Change over switch (COS)/ Bypass switch ,
Soft starter etc
provided based on customer requirement
25 Front Panel Display Digital Line Monitor (DLM) provided to measure
V, A, Hz, Pf, KW, Kwh, Kvar etc
26 Indicators Input R, Y, B Indicators
Ouput R, Y, B indicators
Over Temperature Indicator cum Buzzer