Product Details
Product Description
Product Description
PCD235A101 3BHE032025R0101 ABB Central controller (available from stock)
PCD235A101 3BHE032025R0101 ABB Central controller (available from stock)
Our Email: 2235954483@qq.com
contact number:13313705507
contacts：HE
The trip-circuit supervision is based on a constant current injection principle: by
applying operating voltage for the circuit breaker, a constant current is forced to
flow through the external trip circuit. If the resistance of the trip circuit exceeds a
certain limit, due to oxidation or a bad contact, for instance, the trip-circuit
supervision is activated and a warning appears on the LCD together with a fault
code. The warning signal from the trip-circuit supervision can also be routed to SO2
by setting switch SGF1/8 to 1.
Under normal operating conditions, the applied external voltage is divided between
the relay’s internal circuit and the external trip circuit so that at least 20 V remains
over the relay’s internal circuit. If the external trip circuit’s resistance is too high or
the internal circuit’s too low, due to welded relay contacts, for instance, the voltage
over the relay’s internal circuit falls below 20 V (15...20 V), which activates the tripcircuit supervision.
The operation condition is:
U - R +R +R I 20 V AC/DC c ext int s tc ( )× ≥ (5)
Uc = operating voltage over the supervised trip circuit
Ic = current flowing through the trip circuit, ~1.5 mA
Rext = external shunt resistor
Rint = internal shunt resistor, 1 kΩ
Rs = trip coil resistance
The external shunt resistor is used to enable trip-circuit supervision also when the
circuit breaker is open.
The resistance of the external shunt resistor is to be calculated so that it does not
cause malfunction of the trip-circuit supervision or affect the operation of the trip
coil. Too high resistance causes too high voltage drop, which in turn results in the
operation conditions not being fulfilled, whereas too low resistance may cause
faulty operation of the trip coil.
The following values are recommended for the external resistor, Rext:
>>
Hot Sale Factory Price Vertical Free Fall Food Metal Separator
>>
Animal Food Pellet Machine Feed Pellet Machine Calf and Poultry Animal Feed Pellet Machine Feed Processing Machine
>>
Electric Cooling Radiator Fan Assembly 400W For BMW X3 E83 17113452509
>>
C6L type steel material avlock pins and collar
>>
Laptops 15.6inch Core I5 8GB New Laptops Support SSD 256GB/512GB/1tb Factory Price Laptop Computer I5 10th Notebook
>>
Hot sale high quality Universal black exhaust tail pipe tips
>>
Single Extruder Machine Chemical Packaging Blow Molding Machine 50-100L
>>
Aluminum expanded gutter brush leaf guard
>>
Pressurized Vacuum Tube Solar Collector with Ce, ISO, Solar Keymark
>>
Collar and Cuffs Knitting Machine Lower Price
>>
Dk77 Series EDM Wire Cutting Machine CNC Wire Cut Dk7735
>>
HDPE Film High density Polyethylene film
>>
Auto Catalytic Converter For CHEVROLET EQUINOX 2010-2014 2.5L
>>
High Viscosity Cosmetic Liquid Stainless Steel Sanitary High Shear Mixers Homogeneous Emulsion Pump Working with Mixing Tank
>>
Customized Factory Different Pattern Aluminum Perforated Metal Mesh
>>
Sic Diodes Mosfet Vds 700V RDS 340mΩ Lower Cost Less Than 1/5 GaN Mosfet
>>
Fuja Industrial 4 Head 12 Needle Commercial Computer Embroidery Machine
>>
High Quality Aseptic Dairy Milk Production Line/Soymilk Production Line
>>
Marine Waterfall Winch
>>
High Quality Eo Sterilized Medical Grade PVC 2000ml Disposable Urine Bag Urine Collection Bag Urine Drainage Bag
