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New Leader !! SamWha DSP!!
Digital Motor Protection Relay
Digital Motor Protection Relay,DSP VIP-Series , P-Series,C-Series,A-Series,
is useful for low voltage motor protection. It is aimed to protect a motor against a
trouble which is happened from over/under load[current],locked rotor, stall[shock], voltage
(power type)/current unbalance, phase loss, reverse phase, short circuit,
ground fault, over/under voltage(power type) in motor operation.
Also it is able to raise the efficiency for motor operation as being possible to realize a
supervision, a protection and a control, furthermore each kind of series item takes it's own
specialized function, respectively, in order to meet various customer need such
as short circuit , alarm before trip,4~20mA output for load current, insulation
resistance measureemnt, vibrated frequency detection through 4~20mA output from
sensor, RS485 or Ethernet communication.
Especially Current-Resistance type can meet two kind of different job which is
consisted of powerful motor protection during a motor running state and the insulation
resistance measurement for a power line of the motor during a motor stop state. This
would be more powerful to prevent an industrial disaster caused by a degraded power
line of the motor used for the long term since first installation
Now we launch new item such as DSP-2SD/3SD which is based on 2CT or 3CT with
basic essential protective function except GR fault matched with ZCT. However, we
prepared 3SD-RG with GR fault protection through residual circuit for user who
want to take specific function like GF. We will do not cease R&D to meet customer's
need in any condition in today and in future.