LZZB9-12/180(CQ)

Category:

10 ~ 35kV current transformer

LZZB9-12/180(CQ)

Model meaning

Model Code	L	Z	Z	B	9	12	180	CQ
Encoding content	Current transformer	Pillar	pouring type	With protection level	Design serial number	Maximum voltage of equipment	Width	Structure code

Indoor LZZB9-12/180(CQ) epoxy resin cast insulation pillar type fully enclosed current transformer, suitable for power measurement, current detection and relay protection within 10kV and AC 50/60Hz, suitable for SF6 gas insulated switchgear.

Technical parameters

Rated primary current (A)	Rated secondary current (A)	Accurate Level Combination	Capacity (VA)	Rated short-time thermal current (kA/s)	Rated dynamic stability current (kA)
600、800	1（5）	0.2S/5P15	15/15	31.5 Ka/3s	80
1000、1200、1250	1（5）	0.2S/5P20	15/15	31.5 Ka/3s	80

Products meet the standard GB20840.1, GB20840.2, IEC61869-1, IEC61869-2

If users have special requirements, they can be determined after consultation with our company.

The above technical parameters are not the final technical commitment, please be confirmed by our technical personnel.

Product Information

Product Description

Conditions of use

Installation location: indoor.

Ambient temperature:-25 ℃ ~ 40 ℃, daily average temperature is not more than 30 ℃.

Altitude: ≤ 1000m, higher altitude can be selected as required.

Humidity: The maximum relative humidity at room temperature is 95%.

There shall be no violent vibration or collision at the installation site.

Structural Overview

Pillar type, totally enclosed. Epoxy resin cast insulated current transformer.

The primary end is identified as P1-P2, and the secondary end is identified as 1S1-1S2,2S1-2S2...... This model has 12 secondary terminals and supports up to 2 secondary windings.

Technical Data

The installation site is free of gas, steam, chemical deposition, explosion and corrosive media that seriously affect the insulation of the transformer.

The electrical voltage of the equipment is 10kV, and the maximum operating voltage is 12kV.

1. power frequency withstand voltage of secondary winding and grounding 42kV/60s, power frequency withstand voltage between secondary winding and grounding 3kV/1min.

Lightning impulse withstand voltage 75 kV.

Other requirements shall be in accordance with GB20840.1, GB20840.2, IEC61869-1 and IEC61869-2.

Application Case