ZW32-40.5

Overview

Three-phase AC 50Hz outdoor high-voltage switchgear, used in the 1 0kV electrical power systems ofruralpower grid and urb an p ower grid for op ening and closing load current, ov erload current, and short circuitcurrent,and in other simmilar applications

Type Designation

Technical Parameters

Operating conditions

4.1 Ambient air temperature: Max. temperature: +55°C, Min. temperature: -40°C;, Max. daily temperaturediference:25k;
4.2 Relative humidity: Daily mean is not greater than 95%, and monthly mean is not greater than 90%;
4.3 Altitude: Not exceed 2,000 meters;
4.4 Wind: Not exceed 35m/s (equivalent to air pressure 700Pa);
4.5 Pollution degree 4;
4.6 Radial thickness of ice:10mm;
4.7 Earthquake resistance: horizontal acceleration: 0.3g/s', vertical acceleration: 0.2g/s”4.8 Installed in places free of fre, explosion, chemical corrosion and frequent severe vibration.Please contact the manufacturer for customizing those failed to follow the noral working conditions.

Features

5 .1 The product mainly con sists of three-phase pole, spring operating mechanism, drive system, conductingloop, control unit and housing (made of ordinary carbon steel spray or stainless steel). The overallstructure is of the three-ph ase pole type with miniaturization design, full-closed structure and good sealing
property, especially suitable for cold and wet areas,5.2 The elicient and reliable permanent magnet operating mechanism (electric OFF/ON, electric ON an dmanual OFF) or the dual mechanism of permanent magnet mechanism plus spring mechanism is used torealize m anual ON function. The operating mechanism is sealed in the box to effectively prevent rust toparts, guaranteeing the reliable action of mechanismm;5 .3 The pole is made of imported epoxy resin and coated with silicone rubber featuring with high temperaturelow temperature, ultraviolet ray and aging resistance,5 .4 An extemal two-phase or three-phase protective current transformer is provided to realize overcurrentprotection and fault current quick-break protection together with permanent magnet controller, and theprotection delay time can be adjustable;
5.5 The interphase protection C'T and zero-sequence C'T integrated structure can be configured to realizeparameter setting, single-phase grounding protection, three-section protection, reclosing, and faultaccident memory together with the intelligent controller (the external power supply P'T is used to supplythe operating power);, the controller has the corresponding communication module with data uploading tomaster station, fault feedback and “four-remote" functions to form an intelligent circuit breaker achievingdistribution network automation;
5 .6 The circuit breaker can be equipped with an isolating knife switch (at single or dual sides) with three.phase linkage to form an obvious isolating distance at the incoming (outgoing) side, a reliable mechanicalanti-m isoperation interlock is provided between the main switch and the isolating switch to guarantee safcand reliable operation.

Outline and Installation Dimensions

Ordering Notice

7.1 Produet model, name, specification, and quantity,
7.2 Rated current, rated short-circuit breaking current;
7.3 Pole type (split type, integrated type or solid-sealed type);
7.4 Three-phase or two-phase current transformer transformation ratio, accuracy and capacity,7.5 Zero-sequence transformer (independent or combined) transformation ratio, accuracy and capacity,7 .6 Operating mechanism type (single or dual mechanism) and operating voltage;
7.7 Configuration requirements of voltage transformer (quantity, transformation ratio, accuracy and capacity);7.8 Configuration requirements of controller (structure type, finctions, and interfaces),7.9 Names and quantity of accessories or spare parts,
7.10 For special requirements, please contact our company and sign the technical agreement.