a) Circuit Breaker (VCB closed and open condition), CT/PT Insulation Resistance Measurement test. Tests have been conducted using a 5KVA/230V DG set.(Megger)

b) Operational Checks like draw-out mechanism, spring charging, Interlock Functions, operation of Auxillary switch/V releases/T release, operation of Earth switch.

c) Over Current Earth Fault Relay Primary Injection Testing.(at relay services settings)

d) Primary Injection Test of Potential core and Metering core using Primary injection kit and relevant instruments.

Upgrading technology with cost effective solutions The concept of ‘Retrofitting’ does not call for replacing the entire switchgear. Retrofitting does not require:

A) Modification in foundation.

B) Change in the power cable route.

C) Change in control cable route.

D)Shutdown

Example:

MOCBs, using oil as an arc quenching and insulating medium, have following limitations:

a) Frequency and level of maintenance are high.

b) limited operational and short-circuit life.

c) Vulnerable to fire hazards associated with oil.

Advance to new technology, viz. vacuum, with its superior dielectric and arc interruption properties.

‘RETROFITTING’ old MOCB switchgear with VCB is the cost effective, which will improve the life and reliability of switchgear without going for large investment.

CASETTE-TYPE DRAW-OUT UNIT is offered with complete safety interlocks,shutter,contact shrouds ets.

Every four months mandatory visit is made by JES to examine every breaker.

In addition to that emergency call based visit will be made by JES.

All make like Siemens,ABB,Areva,L&T,CGL,BHEL,Easun,S&S,Jyoti,Biecco lawrie,SYSTEM CONTROL and etc; spares and technical experts available with us.so we can provide best service.

Our service charges competitively less. Our motto is the best service.