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ABB UniGear ZS3.2

ABB UniGear ZS3.2
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UniGear ZS3.2
Air-insulated medium voltage switchgear
INSTRUCTION MANUAL
UniGear ZS3.2
Air-insulated medium voltage switchgear
Safety
Reliability
Flexibility
Economy

Table of Contents

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ABB UniGear ZS3.2 Specifications

General IconGeneral
BrandABB
ModelUniGear ZS3.2
CategoryIndustrial Electrical
LanguageEnglish

Summary

Instruction Manual UniGear ZS3.2

For your safety!

1 Summary

1.1 General

Overview of UniGear ZS3.2 series panels, features, and design.

1.2 Standards and specifications

Compliance with IEC standards, protection degrees, and safety regulations.

1.3 Service conditions

Details normal and special service conditions for the switchgear.

2 Technical data

2.1 Electrical data

Presents rated voltage, frequency, current, and withstand values in a table.

2.2 Resistance to internal arc faults

Details testing and classification for internal arc fault resistance.

2.3 Dimensions and weights

Refers to figures for dimensions and provides weight ranges.

3 Switchgear panel structure and equipment installed

3.1 Basic structure and variants

Describes the panel's fixed and movable parts and available variants.

3.2 Enclosure and partitions

Details the construction material and design of enclosures and internal partitions.

3.3 Compartments in the switchgear panels

Explains the different compartments within the switchgear panel.

Section 3 Continued

Withdrawable part

Describes the manually moved withdrawable part and its components.

3.4 Interlocksprotection against maloperation

Discusses safety interlocks to prevent hazardous situations and maloperation.

3.5 Main apparatuses

Introduces the primary electrical components used in the switchgear.

3.5.1 Circuit breaker

Describes VD4 vacuum and HD4 SF6 circuit breakers, their features, and operation.

3.5.2 Instrument transformers

Details current and voltage transformers, their types, and installation.

3.5.3 Surge arrester

Explains surge arresters for protection against overvoltages.

3.5.4 Earthing switch

Describes the EK6 earthing switch and its operation.

4 Dispatch and storage

4.1 Condition on delivery

Details checks performed at the factory and delivery conditions.

4.2 Packaging

Describes packaging methods for protection during transport and storage.

4.3 Transport

Provides guidelines for safely transporting switchgear panels and components.

Section 4 Continued

4.4 Delivery and intermediate storage

Outlines consignee responsibilities and conditions for site delivery and storage.

5 Assembly of the switchgear at site

5.1 General site requirements

Lists prerequisites for the switch room and site preparation before installation.

5.2 Foundation frame on a concrete floor

Details the installation and alignment of the foundation frame.

Section 5 Continued

Structural data

Presents physical dimensions, weights, and load capacities of the panels.

5.3 Assembly of the switchgear panels

Describes the step-by-step process for assembling panels and tightening busbar connections.

Section 5 Continued

5.4 Installation of the busbars and bushings

Guides the installation of busbars, bushings, and their connections.

5.5 Connection of the power and control cables

Explains how to connect power and control cables to the switchgear.

5.6 Earthing the switchgear

Details the procedure for earthing the switchgear and foundation frame.

5.7 Concluding installation work

Lists final checks and tasks after assembly, including cleaning and refitting.

6 Operation of the switchgear

6.1 Commissioning

Covers preparatory work and start-up procedures before energizing the switchgear.

6.1.1 Preparatory work

Details essential checks and preparations before connecting high-voltage power.

6.2 Switching operations

Specifies precautions for performing switching operations.

Section 6 Continued

6.2.1 Withdrawable circuit-breaker part

Explains manual insertion and withdrawal of the circuit-breaker part.

6.2.2 Circuit breaker

Refers to specific manuals for VD4 and HD4 circuit breaker operation.

6.2.3 Earthing switch

Details operation of the EK6 earthing switch, including opening and closing.

Opening and closing

Provides instructions for operating the earthing switch lever.

Section 6 Continued

6.3 Test procedures

Covers procedures for testing the switchgear's off-circuit and in-phase conditions.

6.3.1 Testing the off-circuit condition

Describes how to test off-circuit status using a plugin indicator.

6.3.2 Testing of in-phase condition

Explains testing the in-phase condition using a phase comparator.

7 Maintenance

7.1 General

Defines maintenance and its importance for switchgear longevity and performance.

Inspection: Determination of the actual condition

Outlines inspection procedures to assess the switchgear's current state.

Servicing: Measures to preserve the specified condition

Describes servicing actions to maintain the switchgear's condition.

Section 7 Continued

Servicing

Details basic servicing activities, including cleaning and lubrication.

7.3 Repair

Covers repair procedures for switchgear surfaces and components.

7.3.1 Switchgear surface

Details repair methods for damaged paintwork and metal surfaces.

7.3.2 Replacement of components

Guides the replacement of isolating contact systems and contact pins.

Section 7 Continued

7.4 Tests on withdrawable parts with circuit-breakers of VD4 or HD4

Outlines functional tests for withdrawable parts.

7.4.1 Checking the auxiliary switch settings on withdrawable parts

Details checks for auxiliary switch settings in test/disconnected and service positions.

7.4.2 Testing of interlock conditions

Covers testing various interlock conditions for safe operation.

Section 7 Continued

7.5 Tests on the switchgear panel

Includes tests for the switchgear panel itself.

7.5.1 Auxiliary switch setting on the earthing switch

Describes tests for auxiliary switch settings on the earthing switch.

7.6 Spare parts, auxiliary materials and lubricants

Lists spare parts, cleaning agents, lubricants, and touch-up paint.

8 Product quality and environmental protection

End of life of product

Addresses the company's commitment to environmental protection at the product's end of life.

Raw material

Lists raw materials and their recommended disposal methods.

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