K6EL-30 Omron, K6EL-30 Datasheet - Page 11

• Manufacturer Part Number: K6EL-30
• Description: RELAY GRND FAULT .03A SWITCHABLE
• Manufacturer: Omron
• Series: K6ELr
• Type: Relayr

Specifications of K6EL-30

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: K6EL30

Q&A
Q: How does the K6EL operate when used for inverter loads (e.g., inverter motors and inverter air conditioners)?
A: The influence of high-frequency noise generated by the inverter has been reduced by combining a special ground
Q: What connection method should be used for ungrounded electrical paths?
A: With ungrounded electrical paths, connect the capacitor or resistor for detection in the way shown in the diagram.
R
S
T
Single-
phase
electrical
path
fault relay IC and a capacitor for cutting out high-frequencies. The possibility of malfunctions due to the influence
of the inverter is much less than with the existing ESA Ground Fault Relay.
The table shows the formulas for calculating the resistance or capacitance as well as the formulas for calculating
ground currents for complete ground faults. (Depending on the location, the allowable ground fault current may be
restricted. In this case, use values of R and C that do not exceed the restrictions.)
Resistor (R) or
capacitor (C)
K6EL
http://www.ia.omron.com/
Isolating
transformer
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Inverter
Connection method
OTG ZCT
kt
Rg
l
In the interest of product improvement, specifications are subject to change without notice.
k lt
K6EL
Ig
M
Y/b
Y
Rg
Resistor:
Capacitor:
Dielectric strength
> 2 V (V)
R=
C=
P=
Formula for resistor or capacitor
5V
2It
2πfV
R
V
2It
2
(Ω)
(W)
(F)
It: Ground Fault
V: Line voltage
f: Frequency
P: Allowable
(A tolerance is
included in the
formulas on the
left.)
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Relay’s set
value
power for the
resistor used
Ig=
Formula for ground
Ig=
(2Rg)
2Rg + R
current
2
V
+ (
V
2πfC
1
(A)
)
2
(A)
safety ground
Ig = 2πfCV (A)
Formula for
Ig=
K6EL
fault
V
R
(A)
11