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JY-7 SERIES TYPE DK NON-AUXILIARY POWER SUPPLY VOLTAGE RELAY(JY-7A/2DK)
Main tech-parameters:
1 Modifiable range of voltage 40V-260V
2 Power consumption The most power consumption is
less than 5W.
3 Operate time Over-voltage relay: 1.2 times modified value’s
operating time is less than 25ms
Operate time of two times modified value is less than 20ms.
4 Resetting time over-voltage relay resetting time is less
than 27ms
5 Resetting ratio over voltage relay resetting ratio0.93~0.97
6 modification errors Range of rating is 15V to the limit.
modified errors is
less than 2%. At the limited temperature, errors of any modified
value above 15V is less than 3%.
7 Contact capacity
Relay output circuit contact can break the
voltage less than 250V, 50W for
the DC inductance charge circuit which time constant is 5±0.75ms.
In the AC
circuit which voltage is less than 250V it is 250VA(power factor
cosΦ is 0.4±0.1). Relay’s contact can make 5A for long life.
8 Electrical life More than 105 times
9 Mechanical life More than 106 times .
10 Medium intensity
Relay’s every electric terminals are connected together. And it can
endure a
2000V and 50Hz AC voltage(virtual value) to the non-electrification
metallic
outside part or shell. There is no insulated breakdown or flashover
phenomenon.
11 Insulation resistance
Relay’s every electric terminals are connected
together. To the non-
electrification metallic outside part or shell, its insulated
resistance is less
than 300MΩ measured by tramegger with opening voltage is
500V.
12 Working condition : Temperature -10℃~+50℃, relative
humidity≤90%, alti-tude≤2000m
13 Anti-disturb capability Relay’s anti-disturb is accord
with DL478-92 (<<Static Relay Protection and Security
Auto-device currency Tech>>)
Descrition:
JY-7 series type DK non-auxiliary power supply voltage relay
is used in
relay protection devices of electromotor transformer and
transporting and
transforming power. And as an over-voltage protect or low-voltage
closedown
startup component.