ERL MIT161 - SETTING AND CONFIGURATION; Selecting Protection Characteristics

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6. SETTING INSTRUCTIONS
6.1. Select Characteristics
6.1.1. FOR EARTH FAULT
Pressing ↓key repeatedly get Main menu, press Submenu → Key , 3mm
LED in the Key Lit to indicate that the Sub menu is activated.
Pressing ↓ key repeatedly the Sub menu will scroll down in the following order on the
display.
- Characteristics 1 is in OFF
- Definite Time Lag (DTL)
By pressing ↑ or ↓ key choose characteristic (DTL) or OFF and press → key. Now the
Submenu LED goes OFF and the Main menu appears on the LED display.
6.1.2. F
OR
L
OWSET
Pressing ↓key repeatedly get Main menu, press Submenu → Key , 3mm LED
in the Key Lit to indicate that the Sub menu is activated.
Pressing ↓ key repeatedly the Sub menu will scroll down in the following order on the
display.
- Characteristics 2 is in OFF
- Standard Inverse 3 Seconds characteristics.
- Standard Inverse 1.3 Seconds.
- Very Inverse
- Extremely Inverse
- Long Time Inverse
- Definite Time Lag
By pressing ↑ or ↓ key choose the desired characteristic and press → key. Now the
Submenu LED goes OFF and the Main menu appears on the LED display.
6.2. Current Settings
Setting Range: 0.5% to 25% in steps of 0.5% (For Earth fault and Lowset)
6.2.1. E
ARTH FAULT
Pressing ↓ key repeatedly get Main menu (represents Earth fault has been set to
10%), press → key (Submenu LED On) to get the Sub menu. Pressing the ↑ or ↓ key,
changes the current setting in 5mA increment or decrement. Upon selecting the desired
setting, once again press the → key (Sub menu LED goes OFF) to return to the main
menu.