1. System Introduction

HZBZ-IV automatic comprehensive test system is technically used for routing test、type test and special test of transformers, including automatic test capability for ratio-voltage、direct current resistance、no-load loss measurement、induced over voltage withstand test、temperature rise test (11～33kV class distribution transformer). All the test items can be operated by the relevant transformer automatic comprehensive test system.

The fully automatic model adopts PLC as the control core and industrial control computer as the man-machine interaction interface, which has the outstanding advantages of high reliability, intuitive interface, simple operation and perfect protective measures.

2. Test Capability  

2.1 Test Capability

 Transformer capacity: 5KVA-2500KVA and below

            Primary voltage: transformer below 11.0 kV

            Secondary voltage: 433V

Transformer capacity: 15KVA-2500KVA and below

            Primary voltage: transformers below 33.0 kV

            Secondary voltage: 433V

 transformer capacity: 2.5KVA-10000KVA and below

            Primary voltage: transformers below 33.0 kV

            Secondary voltage: 11.0KV

2.2 Test Item

Insulation resistance test; (instrument independent test)

DC resistance test of 2 winding; (instrument independent test)

voltage ratio (turn ratio) and vector group test;

no load test: no load loss, power factor measurement and no load current percentage test;

load test: load loss (automatic conversion load loss), short circuit impedance percentage test;

power frequency withstand voltage test (high voltage test), this test item is not comprehensive test   software, and can be tested separately.

induction pressure test (frequency doubling pressure test);

transformer temperature rise test;

transformer capacitance and dielectric loss test; (instrument independent test)

Type test of transformer

lightning impulse test (including full wave and chopped wave test)

Meet the temperature rise test of the following transformers

Transformer capacity: 5KVA-2500KVA and below

Primary voltage: transformer below 11.0 kV

Secondary voltage: 433V

Transformer capacity: 15KVA-2500KVA and below

Primary voltage: transformers below 33.0 kV

Secondary voltage: 433V

2.3  Design and manufacturing follow standards

GB 1094 "Power Transformer"

GB/T 6451-2015 "Technical parameters and requirements for oil-immersed power transformers"

GB/T 10228-2015 "Dry power transformer technical parameters and requirements"

JB/T 501-2006 "Power Transformer Test Guide"

GB/T 1208—2006 “Current Transformer”

GB/T 1207-2006 "Voltage Transformer"

IEC60076 "Transformer Standard"

3. Detailed Configuration and Technical Parameters