JDZX2-20CQ

Category:

10 ~ 35kV voltage transformer

JDZX2-20CQ

Model meaning

Model Code	J	D	Z	X	2	20	CQ
Encoding content	Voltage transformer	Single phase	cast insulation	"Y" shape wiring	Design serial number	Rated voltage	For SF6 inflatable cabinet

Indoor JDZX2-20CQ type epoxy resin casting insulation fully enclosed voltage transformer, suitable for power measurement, voltage detection and relay protection within 24kV and AC 50/60Hz, suitable for SF6 inflatable insulated switchgear.

Technical parameters

Rated voltage (kV)	Accurate Level Combination	Rated output (VA)	Thermal Limit Output (VA)	Rated insulation level (kV)	Rated frequency (Hz)
20:√ 3 / 0.1:√ 3,0.1:3	0.2/3P	20/100	300	24/65/125	50 or 60Hz
	0.5/3P	80/100
	1.0/3P	150/100
20:√ 3 / 0.1:√ 3,0.1:√ 3,0.1:3	0.2/0.5/3P	15/15/100	300	24/65/125

Note:

1. The product conforms to GB20840.1, GB20840.3 and IEC61869-1, IEC61869-3.

2. The above form is not the final technical commitment, please confirm with our technical personnel.

Product Information

Product Description

Conditions of use

Installation location: indoor.

Ambient temperature:-5 ℃ ~ 40 ℃, daily average temperature not more than 30 ℃.

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

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

Pollution severity: Grade II.

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

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

Structural Overview

Fully enclosed. Two-end insulation, epoxy casting insulation voltage transformer.

The primary terminal is identified as A- N, and the secondary terminal is identified as 1a-1n and 2a-2n,da-dn this model has 6 secondary terminals and supports 3 secondary windings.

Technical Data

The electrical voltage of the equipment is 20kV, and the maximum operating voltage is 24kV.

1. power frequency withstand voltage of secondary winding and grounding is 65kV/60s, and power frequency withstand voltage of secondary winding and grounding is 3kV/1min.

Lightning impulse withstand voltage 125kV

Other technical requirements shall be in accordance with GB20840.1, GB20840.3, IEC61869-1 and IEC61869-3.

Application Case