Manufacturer Preventive Maintenance Program

@TW: profiled topic used in Maintenance Guides: DOCA0305 (MTZ with Mic Act), DOCA0099 (MTZ with Mic X), LVPED508016 (NT/NW)

Definition

@TechPub writer (03/2019): FYI: Reminder: guide with the Manufacturer procedures (PSE1287) is released 12/2017. Not updated since for FWv2 or FWv3 projects.

The Manufacturer preventive maintenance program must be done exclusively bySchneider Electric Services representatives.

The Manufacturer preventive maintenance program includes the Routine and Intermediate end-user preventive maintenance programs.

The Manufacturer preventive maintenance program comprises:

Complete function checks.
Condition checks (test-based).
Complete part and system servicing (cleaning, greasing).
Control unit replacement (diagnostic-based).

The Manufacturer preventive maintenance program must be performed every five years in the case of normal operating conditions and user application with low criticality. Refer to the recommended frequency for the Manufacturer maintenance program for other cases.

Procedures

Part	Procedure title
Device	Measure insulation resistance
Mechanism	Check opening and closing forces
Mechanism	Clean and regrease the mechanism
Breaking unit	Measure the contact resistance for each pole
Auxiliaries	Check opening time of MX opening voltage release
	Check closing time of XF closing voltage release
	Check opening time of MN undervoltage release
	Preventively replace the XF, MX, MN voltage releases⁽¹⁾
	Preventively replace MicroLogic X control unit and electrronic modules
Control unit	Diagnose the performance of the MicroLogic X control unit functions
Control unit	Preventively replace the MicroLogic X control unit⁽²⁾
Chassis	Check connection/disconnection torque
Chassis	Clean and regrease chassis of MasterPacT drawout devices
Communication system	Check data transmission over the IFE Ethernet interface or EIFE embedded Ethernet interface
Mechanical interlocking	Operate mechanical interlocking by cable
Mechanical interlocking	Operate mechanical interlocking by rod
(1) As part of the preventive maintenance plan, Schneider Electric recommends replacing the voltage releases after 15 years of operation. (2) As part of the preventive maintenance plan, Schneider Electric recommends that the Schneider Electric Services representative replaces the MicroLogic X control unit and associated optional ESM or M2C modules after 15 years of operation. Each time the MicroLogic X control unit is replaced, the performer, and the rating and sensor plugs must be replaced by theSchneider Electric Services representative.

Time Required

The average total time required for a Schneider Electric Services representative to perform this maintenance program including the Intermediate one, is as follows:

From 1.5 hours to 2 hours depending on the frame size, for a fixed device with all accessories installed.
From 2 hours to 3 hours depending on the frame size, for a drawout device with all accessories installed.