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Compact Modular Recloser 

Intelligent. Compact. Self-powered by voltage.
Introduction

The new class of single-phase auto-recloser

Superior ratings up to 38 kV and unique self-powering via line voltage put the Compact Modular Recloser (CMR) at the forefront of the single-phase auto-recloser market. It presents a quantum leap in technology for cost effectively improving the reliability of overhead medium voltage networks. Featuring a fully insulated housing in a compact design, the lightweight device permits easy installation and fast commissioning. An intuitive interface, wireless connectivity and SCADA integration capability ensure a high degree of user convenience and flexibility. The comprehensive rating options and practical design of the CMR enable unrestricted deployment onto both urban and rural networks. By eliminating the need for regular maintenance and utilising line voltage as power supply, this new generation of single-phase auto-recloser addresses all common problems of obsolete hydraulic reclosers.

             

Key Features

Compact Modular Recloser Ratings

Type tested according to IEC 62271-111 / IEEE C37.60
Ratings Description
 
 
 
Model2
 
 

Rated maximum voltage

kV

12
17.5
27
27
27

Rated power frequency withstand – dry

kV

28
50
60
60
60

Rated impulse withstand voltage

kV

95
110
125
150
150
Minimum system voltage for operation
kV
7
10
15.5
15.5
20
Switch Unit Parameters
Unit
Rating
Rating

Rated frequency

Hz

50/60

50/60

Rated continuous current

A

630

630

Rated short time withstand current

kA

12.5

6.3

Rated peak withstand current

kA

32.5

16.4

Rated duration of short circuit

s

3

3

Rated symmetrical interrupting current

kA

12.5

6.3

Rated symmetrical fault making current

kA

12.5

6.3

Rated operating sequence 
 
O – 0.3s – CO – 2s – CO – 2s – CO
O – 0.3s – CO – 2s – CO – 2s – CO

Clearing time

ms

<50 ms

<50 ms

Rated line charging interrupting current

A

5

5

Rated cable charging interrupting current

A

25

40

Minimum number of operations at rated short circuit current 
 
70
240

Minimum number of load break operations at rated current/mechanical operations

 
10,000 
10,000 
IP rating 
 
67
67
Service Environment
Rating

Operating temperature range

–403 to +55°C

Humidity

0 to 100%

Maximum altitude

4,000m  (Derating required above 1,000m)

Pollution class

Very Heavy

1 Excludes routine battery replacements every eight years

2 Correct model must be selected for the applicable system voltage (27kV model cannot be used on a     
  12kV network).

3 Reclose intervals must be extended at temperatures below –35°C

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