Download index automatic microprocessor control panel for stand

2.7. MEASURING THE GENERATOR’S AND MAINS PARAMETERS
The voltmeter measurements indicate the actual real value (RMS) and are at a precision of 1%. The unit has a deviation of …..V +/- to
measure temperatures between –20 and +70°C.
SINGLE / THREE PHASE MAINS SENSOR
The three phase mains sensor is made with three 500 K OHM resistance dividers with high insulation voltage capable of withstanding
any excessive voltages of up to 8Kv for 1 second. It is sensitive to the minimum and maximum voltage on the single phase and to the
phase displacement angle of the three phases. All parameters can be modified, the sensibility to the sequence of the phases can be
activated. Main characteristics:
Mains control
Three phase
Functions
27 – 59 – 60 - 81 – 47
Working voltage
100 – 600 V ac
Minimum adjustable voltage
(OFF) 60 – 400V (27)
Maximum adjustable voltage
110 - 600V (OFF) (59)
Tripping differential voltage
30V on MIN – 15V on MAX
Insulation voltage on L1-L2-L3-L4
=> 8 KV for 1s
Working frequency
50-60 Hz
Minimum and maximum programmable frequency
Min 35 - 55 Hz Max 51 – 75 Hz (81) (OFF)
Phase sequence
L1 – L2 – L3 can be activated
When the software is used to configure the sensor, in biphase, the control is activated only on connections L1 - L2.
Mains control
Biphase
Use voltage
Min adjustable voltage
Max adjustable voltage
Intervention differential voltage
100 – 600 V ca
(OFF) 60 - 400V (27)
110 – 600V (OFF) (59)
30V on MIN – 15V on MAX
When the software is used to configure the sensor, in single phase, the controls on connections L1 – L4 are activated.
Network control
Single phase
Voltages used
Adjustable minimum voltage
Adjustable maximum voltage
Intervention voltage differential
70 – 340 V ac
70 - 280V (27)
110 – 300V (59)
20V on MIN – 10V on MAX
Bringing the MIN V GEN, MIN HZ, MAX V and MAX HZ values over the programmed maximum, the OFF function can be
activated to deactivate the control.
(*) FUNCTIONS
27
59
60
81
47
50
51
87G
32
Min voltage
Max voltage
Dissymmetry
Protection for min/max frequency
Sequence phases
Instant current or short-circuit
Max current with programmable delay
Protection differential of breakdown to earth
Protection by energy's inverse or directional power protection
FILE
GCM02-MT-ING4 NEW.doc
VER
c/02
LAST ISSUE
04/03/2003
LANG.
ENG
PAGE
Page 23 of 57