Abbreviations - TAVRIDA ELECTRIC VCB15 Product Manual

This Product Guide describes the withdrawable vacuum circuit breakers manufactured by Tavrida Electric.
Tavrida Electric circuit breakers are designed for rated voltages up to 24 kV.
Withdrawable vacuum circuit breakers are designed for indoor installation in air-insulated switchgear panels and
are intended to perform switching operations in network rated and faulty modes.
The breakers consist of the following main components:
• Indoor Switching Module (ISM) - The air-insulated ISM incorporates Tavrida Electric vacuum interrupters
incorporated in solid dielectric insulator controlled by per phase monostable magnetic actuators. No SF-6 or oil
insulation is used in the ISM.
• Control Module (CM) - The CM is a microprocessor-based controller that provides ISM operation,
protection and data logging functions.
This guide contains information about the circuit breaker's technical parameters, functionality and operating
principles. The purpose of the document is to provide necessary product information for application engineers and
technical personnel utilizing the equipment.
Other technical documents which cover the product:
Document name
User Guide
Routine Test Certificate

1.1 Abbreviations

AC Actuator coil
AS Auxiliary switch
BIL Basic Insulation Level
EMC Electromagnetic compatibility
CM Control Module
CO Close - Open operations cycle
DOU Draw-Out Unit
Com Common point of contact
I/O Input / Output
ISM Indoor Switching Module
LED Light emitting diode
(P)MCB Protective miniature circuit breaker
PS Position switch
NA Not applicable
NC Normally closed contact
NO Normally open contact
PCD Phase center distance
USB Universal Serial Bus
VCB Vacuum Circuit Breaker
VI Vacuum interrupter
6
Target audience
Users providing installation,
commissioning and utilizing
installed equipment
Customer procurement
service
Purpose of the document
Provide information on switching operations, required checkups
and maintenance, as well as service and disposal procedures.
Provide information on supplied equipment serial numbers.