Zero-Sequence Current Transformer for Generator, Motor Lj Series

LJ sequence zero-sequence recent transformer, it truly is utilized for earthing defense of minimal grounding recent technique or motor stator coil or cable. DD11/six & DL11/.two model relays matches with LJ transformer, as soon as grounding failure hhappens, zero-sequence current generates in secondary cycle of transformer to lead to relay action.

LJ-Φ75 variety indoor existing transformer. It is utilized in the devices, AC 50Hz, voltage up to 500V. Can let a few phases cables(max diameter not exceed 75mm) to run DL11/.2 relay for metering zero-sequence current & defense of earthing failure.

Typical working & installment circumstances
one.Temperature: -25ºC~+40ºC
two. Humidity: ≤80%
three. Altitude: ≤1000m
four. Mounting area: indoor place CZPT metal dust or evident shock


Model cable via No secondary standard impedance(Ω) Relay circuit setting recent(A) Precision(A) secondary cycle unbalanced voltage(mV)
LJ-two one~two ≤10 .03 1~3 40
LJ-4 three~4 ≤10 .03 1~three forty
LJ-seven 5~seven ≤10 .03 one~3 40


Max protective precision(A) Max cable diameter for use(mm) One second heating reliability Rated secondary present(A) connecting wire resistance(Ω) Relay location recent variety(A) Relay starting up current(parallel)
~10 70 200 24/Z one .1~.14 .1A

Visual appeal & installment dimension

Packing and shipping and delivery
— Normal paper carton for merchandise.
— Delivery mark in accordance to customer’s ask for.
— Bulk manufacturing will be deliveried by sea and air.

Our Services
— We have our own factory, professional producer
— We can send you samples inside one particular week.
— We do OEM & ODM services .
— We control quality strictly, quality problem: 100% compensation or change
Warmly welcome to visit our factory. Welcome customer or your agent to inspect before order or lading.


Zero-Sequence Current Transformer for Generator, Motor Lj Series