DOLD VARIMETER PRO Monitoring Technique

Monitoring Technique
VARIMETER PRO
Multifunction Measuring Relay
MK 9300N, MH 9300
MK 9300N
Product description
The universal measuring relays MK 9300N / MH 9300 of the VARIMETER
PRO series monitor up to 9 parameters simultaneously. These are under-,
over-voltage, voltage range, voltage asymmetry, under-, overcurrent, cos phi,
effective-, apparent- and reactive power, frequency and phase sequence,
The measurement in 3-phase or single-phase systemes is very simple and
without extensiv wiring. Because of the menue structure the multifunctional
measuring relays can be used easyly and intuitively.
The early detection of up-coming break downs and preventive maintenance
avoid expensive damages. As user you profit from the reliability and avai-
lability of your plant.
Function Diagram
U
H
I
>I
Hyst
11
14
t t
a v
Example: overvoltage monitoring with closed circuit operation
All technical data in this list relate to the state at the moment of edition. We reserve the right for
technical improvements and changes at any time.
Your Advantage
• Min-, Max. value or window monitoring
• Simultaneous monitoring of up to 9 different parameters
• Simple configuration and fault diagnostic
• Different fault indications
• Large measuring range 3 AC 24 ... 690 V
• Auxiliary voltage ranges DC 24 V, AC 230 V or AC/DC 110 ... 400 V
• Early detection of irregular states
• Space and cost saving
• Reduced wiring
Features
• Multifunction measuring relay acc. to EN 60255-1
• Voltage monitoring (1- and 3-phase)
MH 9300
• Current monitoring
• Frequency monitoring
• Power factor cos phi
• Phase sequence, phase failure, asymmetry
• Effective-, reactive- and apparent power
• Start up delay, on delay
• Adjustable hysteresis 0.2 ... 50 % of response value
• Manual reset
• LCD for indication of the measuring values
• Relay output
MK 9300N:
MH 9300:
• Relay function selectable (energized/de-energized on trip)
• As option with plugable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
• MK 9300N: Width 22,5 mm
MH 9300: Width
More Information
t
• MK 9300N
The MK9300N has 1 relay output.
Monitoring parameters can be set independently
• MH 9300
t
The MH 9300 has 2 relay outputs.
Monitoring parameters can be set independently
Each monitoring function can be assigned ro relay 1 and /or relay 2
t
Approvals and Markings
M10624
Applications
• Monitoring of single and 3-phase loads
• Emergency power supplies
• Voltage dependent switching at under- or overvoltage
• Voltage monitoring of portable equipment
• Motor protection on Phase failure
• Transformer protection on asymmetric load
• Frequency monitoring on inverter outputs
1
1 changeover contact
2 x 1 changeover contacts
45 mm
11.01.16 en / 627