Ungrounded TN SZTT NOL.08, NOL.08-6(10)M, NOLP, etc.

Ungrounded transformers are switched on between the phases of the network and are either single-phase (such as NOL, NOLP) or three-phase. They have in addition to the main and additional secondary winding.

Non-earthed voltage transformers are designed for installation in complete switchgear (CRU) of an internal installation or other closed switchgear (CRU), as well as for embedding in the current lines of turbo generators and serve to power measurement circuits, automation, alarm and protection in electrical installations of alternating current frequency 50 or 60 Hz in networks with isolated neutral.

Non-earthed voltage transformers NOL.08 are manufactured in the climatic version "UT" of placement category 2 according to GOST 15150.

• voltage class, kV: 3, 6 or 10;
• voltage of the main secondary winding, V: 100; 110;
• rated power, VA, in accuracy class: from 15 to 300.

• NO.08. Technical description.

Ungrounded voltage transformers NOL.08-6(10)M are manufactured in the climatic version "U" or "T" of the placement category 2 according to GOST 15150.

• voltage class, kV: 6 or 10;
• voltage of the main secondary winding, V: 100;
• rated power, VA, in accuracy class: from 20 to 200.

• NOL.08-6(10)M. Technical description.

Non-earthed voltage transformers NOLP with built-in safety are manufactured in the climatic version "U" or "T" of placement category 2 according to GOST 15150.

• voltage class, kV: 6 or 10;
• voltage of the main secondary winding, V: 100; 110;
• rated power, VA, in accuracy class: from 30 to 300.

• NOLP. Technical description.

Non-earthed voltage transformers NOL.11-6.O5 are designed to be integrated into a complete switchgear with a VS-6400 switch. They are manufactured in the climatic version "O" of the placement category 5 according to GOST 15150.

• voltage class, kV: 6;
• voltage of the main secondary winding, V: 100; 127; 220;
• voltage of the additional secondary winding, V: 100/3; 100; 110/3; 110; 100/√3;
• rated power, VA, in accuracy class: from 30 to 250.

• NOL.11-6.O5. Technical description.

Non-earthed voltage transformers NO.12 OHMS3 are designed for use in shipboard electrical installations of alternating current of 50 Hz frequency for powering electrical measuring instruments and protective devices, as well as powering automation, alarm and control circuits and are components. Transformers are manufactured in the climatic version "OM" of the placement category 3 according to GOST 15150.

• voltage class, kV: 0.66, 6 or 10;
• voltage of the main secondary winding, V: 100; 127;
• rated power, VA, in accuracy class: 30;
• designed for use on river and sea vessels.

• NO.12 OM3. Technical description.

Non-earthed voltage transformers NOL-20, NOL-35 are designed for installation in complete switchgear or closed switchgear. Climatic version "UHL" or "T" of the accommodation category 2 according to GOST 15150.

• voltage class, kV: 20 or 35;
• voltage of the main secondary winding, V: 100;
• rated power, VA, in accuracy class: from 10 to 600.

• NOL-20, NOL-35. Technical description.

Non-earthed voltage transformers NOL-35 III outdoor installation are designed for installation in open switchgear (ORU). Transformers are manufactured in the climatic version "UKHL", placement category 1 according to GOST 15150.

• voltage class, kV: 35;
• voltage of the main secondary winding, V: 100;
• rated power, VA, in accuracy class: from 50 to 600.

• NOL-35 III. Technical description.

• NOLP voltage transformers. Description of the type of measuring instrument.
• Non-grounded voltage transformers of the NOL series. Description of the type of measuring instrument.

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