1. Introduction
This user guide details the operational and functional details of the Megger EVCC300 Electric Vehicle Charger
Checker.
Please read this user guide fully before attempting to use the EVCC300.
1.1 Product description
The new EVCC300 represents a new concept in electric vehicle charger checking, providing a simple, all in one
solution. The name simply means:
E
lectric
V
ehicle
C
harger
C
hecker
300
= mode 3 chargers.
The compact, ergonomically designed instrument allows the user to quickly ensure a charger is in a safe, working
condition. This could be done prior to putting back into use following maintenance, or simply as a regular health
check to ensure everything is safe and working as it should be.
The EVCC300 is capable of checking both the safety and operation of a mode 2 and single-phase, mode 3 electric
vehicle charger and does it in a simple, easy-to-use manner.
One of the benefits of the new EVCC300 is that it not only sets control pilot conditions to allow other electrical tests
or to observe the charger’s reaction, it can also read the code received from the charger. The control pilot signal (CP)
is then compared with the requirements of IEC 61851-1:2017, without the need for a separate oscilloscope.
This makes the EVCC300 a unique solution to ensuring EV charger safety and reliability.
1.2 Features
The EVCC300 incorporates several grouped safety tests: protective earth integrity, nuisance tripping of an RCD or
GFCI, and connection communication and charging control, as follows:
1. Safety checking tests:
1.1. Protective Earth (PE) touch pad test: To detect faults such as open circuit ground connection, voltage present
on ground connection and other charger supply problems.
1.2. Protective conductor resistance measurement (R
PE
)
1.3. Touch voltage measurement (inherent part of any RCD / GFCI tests)
1.4. Personal protection check
RCD / GFCI trip time measurement
2. Nuisance tripping check test:
2.1. RCD / GFCI trip current measurement
3. EV charger operation checking tests:
3.1. Proximity pilot (PP) check
Indicate connection and latching
3.2. Control pilot (CP) check
Simulates electric vehicle (EV) control pilot (CP) states (A, B, C, D, E and F)
Reads back the set state from charger (CP voltage, duty cycle and frequency also displayed)
Displays charger maximum current available to car communication.
2
Introduction
www.calcert.com
1.800.544.2843
0
5
10
15
20
25
30
